geology of the van buren and lavaca quadrangles, arkansas and … · 2010. 10. 22. · ark. the...

Geology of the Van Buren

and Lavaca Quadrangles,

Arkansas and OklahomaGEOLOGICAL SURVEY PROFESSIONAL PAPER 657-A

Prepared in cooperation with the

Arkansas Geological Commission

Geology of the Van Buren

and Lavaca Quadrangles,

Arkansas and OklahomaBy BOYD R. HALEY and THOMAS A. HENDRICKS

GEOLOGY OF THE ARKANSAS VALLEY COAL FIELD PART 2

GEOLOGICAL SURVEY PROFESSIONAL PAPER 657-A

Prepared in cooperation with the

Arkansas Geological Commission

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1971

UNITED STATES DEPARTMENT OF THE INTERIOR

ROGERS C. B. MORTON, Secretary

GEOLOGICAL SURVEY

William T. Pecora, Director

Library of Congress catalog-card No. 77-610923

For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402

CONTENTS

Abstract_ ________________________________________Introduction____________________________________Stratigraphy.______________________________________

Ordovician System..____________________________Everton Formation, St. Peter Sandstone, and

Joachim Dolomite undivided _______________Plattin Limestone_________________________Fern vale Limestone. ________________________Cason Shale______________________________

Silurian System, St. Clair Limestone ______________Devonian System, Penters Chert __________________Devonian and Mississippian Systems, Chattanooga

Shale -_-_-__----- ------___---__---_ ---Mississippian System.___________________________

Boone Formation ___________________________Moorefield Formation _______________________Fayetteville Shale___________________________Pitkin Limestone ___________________________

Pennsylvanian System. __________________________Morrow Series._____________________________

Hale Formation_______________________Cane Hill Member. _________________Prairie Grove Member_____________

PageAl

133

336666

88

Stratigraphy ContinuedPennsylvanian System Continued

Bloyd Formation ____________ ________ 9Atoka Series______________________________ A14Des MoinesSeries, Krebs Group_____________

Hartshorne Sandstone.-____________----McAlester Formation________________Savanna Formation ____________________

Quaternary System___________________________Terrace deposits ____________________________Alluvium _________________________________

Structure __________________-_________-_-------_-__Folds________________________________Faults_______________________________ .

Economic geology_________________________________Coal..._____.__-_____________....

Coal beds in the Atoka Formation ___________Coal beds in the McAlester Formation______.Coal beds in the Savanna Formation_________.

Oil and gas.____________________________________Building stone._________________________________Road metal ____________________________________Gravel, sand, and clay__________________________.

References cited ____________________________________

2424242425252525252627272727282830303032

ILLUSTRATIONS

[Plates are in pocket]

PLATE 1. Geologic map of Van Buren and Lavaca quadrangles, Arkansas and Oklahoma.2. Stratigraphic sections.3. Lithologic sections of post-Atoka rocks in Lavaca quadrangle.4. Electrical log correlation of the Atoka Formation.5. Structure-contour and coal-bed map.6. Structural sections.7. Graphs showing thickness, maximum porosity, and gas content of the sandstone part of selected zones in the Atoka

Formation.Page

FIGURE 1. Index map of report area_________________________________________________________________________ A22. Chart showing stratigraphic nomenclature of rocks_______________________________-----------__----- 43. Section showing correlation of rocks between the Everton and Boone Formations____________-__--------_ 7

4-10. Map showing thickness of:4. The Chattanooga Shale and the Boone Formation, Moorefield Formation, and Fayetteville Shale____ 105. The Pitkin Limestone, combined Fayetteville Shale, Moorefield Formation, and Boone Formation,

post-Chattanooga Mississippian rocks, and the Chattanooga Shale and Mississippian rocks______ 126. Morrow rocks___________________________________________________________________________ 147. The Cane Hill and Prairie Grove Members of the Hale Formation and the Hale and Bloyd Formations. 168. The lower, middle, and upper parts of the Atoka Formation, and its total thickness._________ __ 189. The sandy parts of zones 28, 58, 67, and 93 in the Atoka Formation________________--------_ 20

10. The sandy parts of zones 98, 99, 100, and 101 in the Atoka Formation._________-_______--------_ 2211. Map showing location of wells drilled in the report area______________________-___-____-______-_-----_ 2912. Maps showing possible maximum-porosity trends in the sandstone part of zone 98____________---_---.--- 31

m

IV CONTENTS

TABLES

Page TABLE 1. Division of the Atoka Formation in Van Buren and Lavaca quadrangles, Arkansas and Oklahoma._________ A15

2. Estimated original reserves of coal in the Arkansas part of Van Buren and Lavaca quadrangles, Arkansas andOklahoma. _______________________________________________________________ 27

3. Descriptions of selected wells drilled in Van Buren and Lavaca quadrangles, Arkansas and Oklahoma, as ofSeptember 30, 1966___________________________________________________ 33


GEOLOGY OF THE VAN BUREN AND LAVACA QUADRANGLES,ARKANSAS AND OKLAHOMA

By BOYD R. HALEY and THOMAS A. HENDRICKS

ABSTRACT

Van Buren and Lavaca quadrangles cover an area of about 488 square miles in east-central Oklahoma and west-central Arkansas. Rocks of Middle Pennsylvanian age and unconsoli- dated alluvial deposits of Quaternary age are exposed at the surface, and rocks of Ordovician to Middle Pennsylvanian age have been penetrated by wells drilled in the area.

The rocks have been folded into east-trending broad, gentle folds whose limbs have been broken by north- or south-dipping normal faults. Displacement across the faults is generally less than 1,500 feet but may be as much as 2,500 feet across the fault that separates the Arkansas Valley section from the Ozark Plateaus province. Folding and faulting started on a major scale during the deposition of the Atoka Formation and continued until after deposition of the youngest Pennsylvanian beds. The structural relief in the report area, as measured on the base of the Hartshorne Sandstone, may be as much as 4,450 feet.

The Atoka, McAlester, and Savanna Formations contain coal beds. The Lower Hartshorne coal bed, near the base of the McAlester Formation, and the Charleston coal bed, near the base of the Savanna Formation, have been the most economically important.

Natural gas has been found in rocks of Silurian, Devonian, Mississippian, and Pennsylvanian age. Most of the gas is in rocks of Pennsylvanian age, in the Atoka Formation. The gas in Pennsylvanian rocks is lithologically entrapped, and structure appears to have had little influence on the location or extent of gas accumulation.

Building stone and road metal have been obtained from the Atoka, Hartshorne, McAlester, and Savanna Formations. Gravel and sand are obtained from the alluvial deposits, and the shale in the McAlester Formation has been quarried for brick and tile.

INTRODUCTION

This report is one of a series of geological reports being prepared by the U.S. Geological Survey in co operation with the Arkansas Geological Commission. It has been prepared (1) to provide geologic and struc ture maps of the quadrangles on a modern topographic base; (2) to relate the structure and stratigraphy of the rocks exposed at the surface to that of the subsurface rocks; (3) to show the extent and thickness of known

coal beds, and to present estimates of coal resources where data permit; (4) to provide geologic data and the authors' interpretations of these data relevant to the accumulation of natural gas; and (5) to provide infor mation about the availability of building stone, gravel, sand, and clay.

This report together with added lithologic descrip tions of rocks penetrated by selected wells and shallow holes is also published, under separate cover, as Arkansas Geological Commission Information Circular 20-1.

The Van Buren quadrangle (lat 35°15' and 35°30' N., long 94°15' and 94°30' W.) has an area of about 244 square miles, of which about 60 square miles is in Le Flore and Sequoyah Counties, Okla., and about 184 square miles is in Sebastian and Crawford Counties, Ark. The Lavaca quadrangle (lat 35°15' and 35°30' N., long 94°00' and 94°15' W.) adjoins the Van Buren quad rangle on the east. It has an area of about 244 square miles in Sebastian, Franklin, and Crawford Counties, Ark. (fig. 1).

Generalized geologic reports pertaining in part to the Van Buren and Lavaca quadrangles have been made by Winslow (1888), Smith (1914), Croneis (1930), and Haley (1960) for the Arkansas part, and by Drake (1897), Taff and Adams (1900), Taff (1905), Snider (1914), Smith (1914), and Shannon and others (1926) for the Oklahoma part.

Detailed geologic reports pertaining in part to the two quadrangles have been made by Collier (1907) and Hendricks and Parks (1937,1950) for the Arkansas part, and by Knechtel (1949) for the Oklahoma part.

The stratigraphic boundaries of the post-Atoka rocks established by Hendricks and Parks (1950, p. 69) are used in this report. The stratigraphic nomenclature of these rocks as reported in Hendricks and Parks (1950) was modified by Merewether and Haley (1961), who adopted Miser's (1954) terminology of McAlester

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INDEPENDENCE^/ jff r J '

OUACHITA MOUNTAINS SECTION

EXPLANATION

Area of other reports in this series

Boundary of physiographic province 1-- ^^".A^

Boundary of physiographic section 1

331 Physiographic divisions from

Fenneman and Johnson (1946)

FIGURE 1. Location of report area (I, d) and areas of other published reports: A, Delaware quadrangle (Merewether and Haley, 1961); B, Paris quadrangle (Haley, 1961); C, Barber quadrangle (Haley, 1966); E, Knoxville quadrangle (Merewether, 1967); F and a, Greenwood quadrangle (Haley and Hendricks, 1968); G and b, Scranton and New Blaine quadrangles (Haley, 1968); and H and c, Coal Hill, Hartman, and Clarksville quadrangles (Merewether and Haley, 1969).

Formation, Savanna Formation, and Boggy Formation, and Oakes' (1953) classification of the Krebs Group, which includes the Hartshorne Sandstone and the Mc- Alester, Savanna, and Boggy Formations. Haley (1961) moved the base of the Boggy Formation stratigraphi- cally upward, thereby conforming to the definition estab lished by Miser (1954). The stratigraphic nomenclature and boundaries of Atoka and pre-Atoka rocks used in this report conform, in general, to those used elsewhere

in Arkansas. This nomenclature is compared with that used in nearby areas in figure 2.

The authors express thanks to the Arkansas Geolog ical Commission for providing rock samples from 23 wells drilled in the area, and to Gulf Oil Corp. for pro viding copies of the electrical logs and loaning the rock samples from the shallow holes drilled in the area. Members of the U.S. Geological Survey who examined

VAN BUREN AND LAVACA QUADRANGLES, ARKANSAS AND OKLAHOMA A3

and logged rock samples from 26 wells in the area are acknowledged in table 3.

STRATIGRAPHY

Rocks of Middle Pennsylvanian age and sediments of Quaternary age are exposed in the mapped area and are shown on plate 1. Rocks of Early Ordovician to Middle Pennsylvanian age have been penetrated by wells drilled in the area, and the general lithology of these rocks is shown graphically on plates 2 and 3. Detailed descriptions of eight of the lithologic sections shown on plate 2 and of all sections shown on plate 3 are included in Arkansas Geological Commission In formation Circular 20-1. The lithology of rocks pene trated in wells 57, 73, and 137 shown on plate 2 was described by Sheldon (1954, p. 48-52, 53-56, and 163-167).

ORDOVICIAN SYSTEM

EVERTON FORMATION, ST. PETER SANDSTONE, AND JOACHIM DOLOMITE UNDIVIDED

In northern Arkansas, the Everton Formation, pre dominantly dolomite with some sandstone, is unconformably overlain by the St. Peter Sandstone. The St. Peter, predominantly sandstone with a minor amount of dolomite, is conformably overlain by the Joachim Dolomite. The Joachim, dolomite with some sandstone, is unconformably overlain by younger rocks of Ordo vician, Silurian, Devonian, or Mississippian age. These younger rocks unconformably overlie the St. Peter where the Joachim is missing, or the Everton where the Joachim and St. Peter are missing.

In the area of this report, the rocks assigned to the Everton, St. Peter, and Joachim Formations undivided are known to have been penetrated by eight wells drilled for gas. The rock samples from five of these wells have been examined and logged by geologists of the U.S. Geological Survey.

Well 134 (pi. 1; table 3) penetrated 108 feet of sandstone that resembles the St. Peter Sandstone; apparently the Joachim is missing in this well. Well 136 penetrated 110 feet of dolomite and sandstone that resemble Joachim underlain by St. Peter, or alter natively, this 110 feet of rock could be the Everton Formation with the Joachim and St. Peter missing. Well 102 penetrated 85 feet of intercalated dolomite, sand stone, shale, and limestone that could not be identified by lithology. The sequence is in fault contact with rocks of Mississippian age; thus its stratigraphic position is indeterminate. Well 57 penetrated 93 feet of sandstone and dolomite that is either St. Peter or St. Peter and Everton; in either case, the Joachim is absent. Well 23 penetrated 212 feet of sandstone, dolomite, shale, and

limestone that is thought to be St. Peter and Everton with the Joachim absent.

The above correlations are uncertain because (1) the distance from the wells to the outcrop area of the for mations is long; (2) unconformities exist between these formations and between these and overlying formations; (3) detailed field mapping of facies changes needed to identify these formations in many of the outcrop areas has not been done; and (4) the logged wells are not deep enough to penetrate an identifiable formation older than the Everton, which would aid in distinguishing the overlying three units.

The Everton, St. Peter, and Joachim undivided in the five wells logged consists of sandstone, dolomite, shale, and limestone. The sandstone is white to light gray and is composed of fine to coarse rounded and frosted grains; most is dolomitic, and some is limy. The dolomite is very light to medium gray and dense to very finely crystalline; most is finely to medium sandy, some is limy, and some contains very finely crystalline pyrite. The limestone is medium gray, dense to granular, dolomitic in part, and finely to medium sandy in part. The shale is medium to dark gray and greenish gray; some is slightly dolomitic.

PLATTIN LIMESTONE

In northern Arkansas, the Plattin unconformably overlies the Joachim Dolomite or older rocks and is unconformably overlain by the Kimmswick Limestone, the Fern vale Limestone, or rocks of Mississippian age. The Plattin Limestone is known to have been partly or entirely penetrated by 10 wells drilled for natural gas in the Van Buren and Lavaca quadrangles. The rock samples from five of these wells have been examined and logged (table 3). The younger Kimmswick Lime stone has not been identified in the logged wells; if present, it is included in the Plattin in this report. The Plattin is 60-74 feet thick in the logged wells; electrical log correlations of other wells indicate that it may be as thin as 50 feet. In well 136, the rocks that overlie the Everton, St. Peter, and Joachim interval and underlie the Penters Chert are very thin (76 ft) because of either normal faulting or pre-Penters erosion. Dolomitic greenish-gray shale at a depth of 8,185-8,195 feet in this well resembles the Cason Shale, which suggests that limy dolomite and dolomitic dark-gray limestone in the underlying interval, 8,195-8, 222 feet, represent the Plattin and the Fernvale Limestones. The Plattin in well 134 is 70 feet thick and is light- to medium-gray granular to finely crystalline limestone containing fine crystals of dolomite and widely scat tered fragments of light-brownish-gray dense chert. A unit 21 feet thick in well 62 probably represents the upper part of the Plattin. It consists of very light to light-gray dense to very finely crystalline dolomite

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A6 GEOLOGY OF THE ARKANSAS VALLEY COAL FIELD PART 2

containing very finely to finely crystalline pyrite. The Plattin is 60 feet thick where penetrated by well 57 and consists of medium- to dark-gray granular to finely crystalline limestone that is silty in part and finely sandy and dolomitic in the lower 5 feet. The Plattin is 74 feet thick where penetrated by well 23 and consists of very light to light-gray slightly dolomitic dense to granular limestone containing widely scattered frag ments of very light gray and brownish-light-gray, smoky dense chert. A few thin beds of medium-gray granular limestone are near the base.

FERJWALE LIMESTONE

In northern Arkansas, the Fernvale Limestone unconformably overlies the Kimmswick or older formations and is unconformably overlain by the Cason Shale or younger rocks. In the area of this report it is underlain by the Plattin and overlain by the Cason Shale. It has been penetrated by 11 wells; samples from five of these wells were logged (table 3). It is 15-30 feet thick in logged wells and, according to electrical log correlation, ranges between these two thicknesses in other wells. In well 34 the Fernvale is 15 feet thick and is a light- to medium-gray finely to medium-crystalline limestone. In well 23 it is 16 feet thick and is a light-gray dense limestone. Well 62 penetrated 22 feet of white to very light gray very finely crystalline dolomite and dark-gray shale that is thought to represent the Fernvale. In well 57 the Fernvale is 30 feet thick and consists of medium- gray medium-crystalline limestone, medium-gray silty, clayey, and slightly dolomitic finely to medium-crystal line limestone, and thin layers ot dark-gray shale.

CASON SHALE

In northern Arkansas the Cason unconformably overlies the Fernvale or the Kimmswick and is uncon formably overlain by the St. Clair Limestone or by younger rocks of Devonian or Mississippian age. In the area of this report, the Cason is underlain by the Fernvale Limestone and overlain by the St. Clair Limestone.

The Cason is known to have been penetrated by 11 wells drilled in the Van Buren and Lavaca quad rangles. The rock samples from five of these have been examined and logged (table 3). In these wells, the Cason is 2-35 feet thick and is a medium- to dark-gray or greenish-gray shale that is slightly dolomitic in some places.

SILURIAN SYSTEM, ST. CLAIR LIMESTONE

The St. Clair Limestone of this report includes rocks equivalent to the Brassfield Limestone, St. Clair Lime

stone, and Lafferty Limestone of northern Arkansas and to the St. Clair Limestone of eastern Oklahoma.

The St. Clair ol this report overlies the Cason Shale and is overlain by the Penters Chert. The nature of the lower and upper contacts is not known in this area, but in northern Arkansas the contacts are unconformities.

The St. Clair is 66-245 feet thick in the nine wells whose rock samples have been examined, and it may be as thick as 275 feet in well 127 according to the electrical log. In four of the logged wells the St. Clair is mostly very light to light-gray granular to finely crystalline limestone that is slightly dolomitic to dolo mitic. Fine to coarse crystals of pink calcite are present in some parts, and white to very light gray translucent chert is common in the upper part. In wells 96, 58, and 23 the limestone contains units, as much as 25 feet thick, of very light gray limy granular dolomite. In well 62, white to very light gray granular dolomite com prises most of the lower 90 feet of the St. Clair. That part (110 ft thick) of the St. Clair penetrated by well 158 is 80 percent dolomite and 20 perent limestone; the part (76 ft thick) of the St. Clair in well 136 is 70 percent dolomite and 30 percent shale.

Frezon and Glick (1959, p. 177) believed that pre- Devonian erosion could account for the thinning of the Silurian rocks in northwestern Arkansas but considered the available data inconclusive. In the Van Buren- Lavaca quadrangles, the authors could not find conclu sive evidence to confirm or disprove pre-Penters erosion. Thickness changes of intraformational units in the St. Clair (fig. 3) suggest, however, that several periods of erosion may have occurred during St. Clair time. This hypothesis is extremely tentative because it is based, for the most part, on correlations of electrical logs from a few wells drilled through predominantly carbonate rocks. Carbonate rock sequences do not lend themselves readily to subdivision on electrical logs because the curves show limited variation and few distinctive characteristics.

DEVONIAN SYSTEM, PENTERS CHERT

The Penters Chert in northern Arkansas uncon formably overlies rocks ranging in age from Silurian to Ordovician and is unconformably overlain by the Chattanooga Shale or the Boone Formation. In the area of this report, the Penters overlies the St. Clair and is overlain by the Chattanooga.

The Penters ranges in thickness from 43 to 93 feet in the 14 logged wells (table 3), but it may be as thin as 27 feet in well 85 according to electrical log correla tion. The Penters is predominantly white to very light gray translucent smoky or milky dense chert, but it contains some dark-gray to black dense chert and, in its


127 Stephens Production Co.

Harris 1 Sec. 23, T. 8 N., R. 32 W.


Orr 1 Sec. 2, T. 7 N., R. 32 W.


Wright 1 Sec. 13, T. 8 N., R. 30 W.

71001

Joachim Dolomite, St. Peter Sandstone, and Everton Formation undivided

23Arkansas Louisiana Gas Co.

Wright 1 Sec. 30, T. 9 N., R. 29 W.

Arkansas Louisiana Gas Co.Wright 5

Sec. 5, T. 9 N., R. 29 W.

Joachim Dolomite, St. Peter Sandstone and Everton Formation undivided

EXPLANATION WELL SYMBOLS

6400'

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16-inch normal resistivity curve

ROCK SYMBOLS

Sandstone

Shale

Limestone

Dolomite

Correlation line between formationsQueried where projected

Correlation line in the St. Clair Limestone

ChertPARTICLE SYMBOLS

SandL^DClay

Lime

Dolomite

Chert

cz:Pink calcite

FIGURE 3. Correlation of rocks between the Everton and Boone Formations, Van Buren and Lavaca quadrangles.


uppermost part, very fine to medium-grained sandstone and quartz sand. Some parts of the Penters are limy; other parts are dolomitic. Very light gray limy granular to very fine crystalline dolomite is present. Some of the dolomite contains white translucent to milky chert. Very light gray dolomitic granular to very finely crystalline limestone containing white to very light gray translucent to milky dense chert is present.

DEVONIAN AND MISSISSIPPIAN SYSTEMS, CHATTANOOGASHALE

The Chattanooga in northern Arkansas unconformably overlies the Penters and is unconformably overlain by the Boone Formation. In the area of this report the Chattanooga overlies the Penters Chert and is over lain by the Boone Formation or, in those areas where the Boone-type rocks are absent, by the Moorefield Formation.

The Chattanooga is known to range in thickness from 9 to 121 feet in the two quadrangles (fig. 4). In the Lavaca quadrangle, the Chattanooga thickens south ward by about the same amount that the overlying Boone Formation thins; this relationship is less con sistent in the Van Buren quadrangle (fig. 4). The formation is a dark-gray to grayish-black sooty- appearing shale that contains very finely to coarsely crystalline pyrite and, locally, very thin layers of medium-gray siltstone.

MISSISSIPPIAN SYSTEM

The Mississippian System of this report comprises, in ascending order, the Boone Formation, Moorefield Formation, Fayetteville Shale, and Pitkin Limestone. The Mississippian rocks range in thickness from 290 to 604 feet and are thickest in the central part of the area (fig. 50). The thickness of the Chattanooga Shale and younger Mississippian rocks is shown in figure 5D. In northwestern Arkansas and northeastern Oklahoma, the Boone is mostly limestone and chert; the Moorefield is shale, silty shale, siltstone, limy siltstone, and silty limestone; the Fayetteville is mostly nonsilty shale; and the Pitkin is mostly limestone.

A study of thickness maps (figs. 4, 5) shows that the Boone and, to a lesser extent, the Fayetteville Forma tions (fig. 45, D,} are thin where the intervening Moorefield (fig. 40) is thick, and that the combined thickness of the three formations (fig. 5-B) varies in proportion to the thickness of the post-Chattanooga Mississippian rocks (fig. 5(7).

The compensating thickening and thinning of the Moorefield in relation to the adjacent units can be explained by the following sequence of events: (1) Boone deposition; (2) post-Boone-pre-Moorefield ero sion; (3) Moorefield deposition; (4) post-Moorefield-

pre-Fayetteville erosion; and (5) Fayetteville deposi tion. Post-Boone-pre-Moorefield erosion would explain the absence of limestone and chert of the Boone in many parts of western Arkansas and eastern Oklahoma, but apparently any such erosion did not remove all the shale of the underlying Chattanooga at any place. In the area of this report the Chattanooga is thickest where the Boone is thin or absent (fig. 44, B). In parts of northern Arkansas the Chattanooga is absent, but in these areas the Boone is present.

It seems more logical to the authors of this report to account for thickness changes in the Moorefield by relating them to facies changes in the Boone from limestone and chert to silty limestone, limy siltstone, siltstone, and silty shale, and in the Fayetteville from nonsilty shale to shale, silty shale, and siltstone. Thus in some areas of this report, the silty, noncherty rocks in the lowermost part of the Moorefield are thought to be equivalent to a part or all of the cherty rocks of the Boone in other areas. Likewise, the silty rocks in the upper part of the Moorefield in some areas are thought to be equivalent to the nonsilty shale in the lower part of the Fayetteville in other areas.

BOONE FORMATION

In northern Arkansas the Boone Formation uncon formably overlies the Chattanooga and is unconform ably overlain by the Moorefield Formation. In the area of this report the Boone unconformably overlies the Chattanooga, but it appears to be conformably over lain by the Moorefield.

The Boone ranges in measured thickness from a featheredge to 240 feet in the area of this report. It is absent in the southern part and is thickest in the north western, central, and northeastern parts (fig. 45). The Boone is predominantly white to light-gray translucent to milky dense to granular chert. Beds of light- to medium-gray dense to finely crystalline limestone and cherty limestone are common. Chert is the identifying characteristic of the Boone Formation. If the rocks directly overlying the Chattanooga do not contain chert, they are identified as Moorefield even though they may be continuous with the Boone in other nearby areas.

MOOREFIELD FORMATION

The Moorefield Formation of this report overlies the Boone or, where cherty Boone-type rocks are absent, the Chattanooga. It ranges in measured thickness from 20 to 344 feet and is thickest in the south-central and north-central parts (fig. 4(7). The Moorefield consists of dark-gray to grayish-black mostly silty shale, siltstone, limy siltstone, and silty limestone. Lack of chert in the Moorefield generally differentiates it from the Boone.


The presence of siltstone differentiates it from the overlying Fayetteville. A cherty zone in the middle of the Moorefield (intervals 4,430-4,440 ft in well 57 and 6,225-6,230 ft in well 101) may represent a tongue of Boone-type rocks extending from the northwest into the area of these wells.

FAYETTEVILLE SHALE

The Fayetteville Shale overlies the Moorefield and is overlain by the Pitkin Limestone. It ranges in meas ured thickness from 12 to 96 feet and is thickest in the north-central part of the area (fig. 4Z?). The Fayetteville is dark-gray to grayish-black nonsilty shale, some of which is slightly limy. Near the top of the Fayetteville is a sandy and silty zone, usually less than 20 feet thick, that may be equivalent to the Wedington Sandstone Member of northern Arkansas. This zone consists of siltstone, limy siltstone, very finely sandy siltstone, or very silty very fine grained sandstone. In this report, the base of the Fayetteville is placed at the top of the first siltstone below the Wedington (?). This arbitrarily selected lithologic boundary may place some rocks equivalent to the Fayetteville in the underlying Moorefield.

PITKIN LIMESTONE

The Pitkin overlies the Fayetteville and is overlain by the Cane Hill Member of the Hale Formation or, where the Cane Hill is absent, by the Prairie Grove Member of the Hale Formation. The Pitkin ranges in measured thickness from 52 to 210 feet and is thickest in the east-central part of the area (fig. 5A). The Pitkin is mostly light- to medium-gray oolitic fossiliferous dense to medium-crystalline limestone but includes some dark-gray to grayish-black shale.

PENNSYLVANIA^ SYSTEM

MORROW SERIES

The Morrow Series in this area consists of the Hale Formation, which is made up of the Cane Hill and Prairie Grove Members, and the overlying Bloyd For mation, which is made up of shale and of thin limestone units that may be equivalent to the Brentwood and Kessler Limestone Members of northern Arkansas. The Morrow Series ranges in measured thickness from 380 to 692 feet, and it is thickest in the eastern part of the area (fig. 6).

HALE FORMATION

The Hale Formation unconformably overlies the Pitkin Limestone and is conformably overlain by the Bloyd Formation. The Hale ranges in measured thick ness from 97 feet to 412 feet and is thickest in the central and eastern parts of the report area (fig. 7(7). It is com

posed mainly of shale and limy sandstone, with some limestone and siltstone.

CANE HILL MEMBER

The Cane Hill overlies the Pitkin and is overlain by the Prairie Grove Member. In northern Arkansas, Frezon and Glick (1959, p. 181) considered the lower contact of the Cane Hill to be an unconformity. In the western part of the Van Buren quadrangle, both the Cane Hill and the underlying Pitkin are thin, which could be explained by erosion during part of Cane Hill time. The nature of the contact is not evident in the Lavaca quadrangle (figs. 5-4, 7A). The upper contact of the Cane Hill is considered to be unconformable in the area of this report for the following reasons: (1) In some parts of the area where the overlying Prairie Grove is thick the Cane Hill is thin; however, not by the same amount; and (2) in the Lavaca quadrangle, where the Cane Hill is thin or absent, the underlying Pitkin is not significantly thinner than elsewhere as might be expected if there had been no Cane Hill de posited; therefore, it is assumed that the Cane Hill was removed by channeling during or preceding the deposi tion of the Prairie Grove. Channeling of the Cane Hill is reported in northern Arkansas (Frezon and Glick, 1959, p. 184).

A thin shale between the Prairie Grove and the Pitkin in western Van Buren quadrangle possibly is not the Cane Hill but represents a soil formed by erosion before or during Prairie Grove time.

The measured thickness of the Cane Hill Member ranges from a featheredge to 66 feet and is greatest in the east-central part of the Lavaca quadrangle. The member consists of dark-gray shale, most of which is silty, some thin beds of siltstone, and a few thin beds of silty sandstone.

PRAIRIE GROVE MEMBER

The Prairie Grove unconformably overlies the Cane Hill and is conformably overlain by the Bloyd Forma tion. It ranges in measured thickness from 74 to 391 feet and is thickest in the eastern part of the report area (fig. 7B). The Prairie Grove consists mostly of light-gray limy fine- to medium-grained sandstone that grades laterally into light- to medium-gray fine- to medium-sandy limestone. Some medium-gray siltstone and dark-gray shale is present.

BLOYD FORMATION

The Bloyd overlies the Prairie Grove and is overlain by the Atoka Formation. It ranges in measured thick ness from 237 feet to 439 feet and is thickest in the southwestern part of the report area (fig. 7Z>). The Bloyd consists of dark-gray shale with medium-gray

A10

35°30'


94°30' 15' 94°00'

35°15'

+22

.15 X

.10 X

/ ^

/. \\'i _______J-~ ^' ' ' * V r~~3^ ^- .23 I., /' . . . >0s. ' ^ ' .***'

4^ X-^-L^ > ".N -f./̂ 2i»-~r - s } , ' ^ . .j!_.^^.--y. /./.

7 / o /

'^Ktfl///////VAN BUREN

~2 55//^P UADRA NGLE " =M^+U2

LAVACA QUADRANGLE

10 MILES

A. CHATTANOOGA SHALE

B. BOONE FORMATION

FIGTJKE 4. Maps showing thickness of the Chattanooga Shale (Devonian and Mississippian) and the Boone formation, Moorefield Formation, and Fayetteville Shale (Mississippian). Thickness lines are dashed where projected; interval is 10 or 20 feet. Numbers indicate thickness of mapped unit, in feet. (See fig. 11 and table 3 for well number and location.) Stipple indicates possible reservoir area around well reported as producing or having a show of gas; diameter is arbitrarily shown as 1 mile to agree with well spacing.

VAN BUREN AND LAVACA QUADRANGLES, ARKANSAS AND OKLAHOMA

°30' 15' 94°

All

\\\\> .)\\\\\\\

\ \ \ \

LAVACA QUADRANGLE

10 MILES i35°15'

C. MOOREFIELD FORMATION

94-00'

35-15' 1 *

D. FAYETTEVILLE SHALE

EXPLANATION

Well producing gas

Well with show of gas

Well with no show of gas

Well being drilled as of Sept. 30,1966

Well that did not penetrate the mapped unit or that has in complete or unavailable records

A1294 35°30'


'30' 15'

35"15'

00'

A. PITKIN LIMESTONE

94 35°30''30' 15' 94°00'

35°15'

f 35T.

)"T1A V . -V \» * X^ 1 ' \\ \ .yyv ---^

"' 'A

, ^29

/296i .' 8+ T)l +3

s VAN BUREN .'QUADRANGLE 10 MILES

I

B. FAYETTEVILLE SHALE, MOOREFIELD FORMATION, AND BOONE FORMATION

FIGURE 5. Maps showing thickness of the Pitkin Limestone (Mississippian), the combined thickness of the Fayetteville Shale, Moorefield and Boone Formations (Mississippian), the thickness of the post-Chattanooga Mississippian rocks, and the thickness of the Chat tanooga Shale and Mississippian rocks. Thickness lines are dashed where projected; inter val is 20 feet. Numbers indicate thickness of mapped unit, in feet. (See fig. 11 and table 3 for well number and location.) Stipple indicates possible reservoir area around well re ported as producing or having a show of gas; diameter is arbitrarily shown as 1 mile to agree with well spacing.

VAN BUREN AND LAVACA QUADRANGLES, ARKANSAS AND OKLAHOMA .

94°30' 15' 94°00'

A13

^ BUREN //./f^UADRANGLE

35°15'

C. POST-CHATTANOOGA MISSISSIPPI ROCKS

35°30'94°30' 94°00'

35°15

/ . r J^5

«?; I L-tftf «""' 11 fa? '

^^f////)/<Ss^Sj l/fi

x-f * . ,\« \ \«l\'(^. .?S YAXSH.^

LAVACA QUADRANGLE

10 MILES

D. CHATTANOOGA SHALE AND MISSISSIPPIAN ROCKS

EXPLANATION

* Well producing gas


+ Well with no show of gas



414-469 O - 71 - 2

A14 GEOLOGY OF THE ARKANSAS VALLEY COAL FIELD PABT 2

°30' 15'

' I I 448 IX ^ZW. 7

35°15'

EXPLANATION






FIGURE 6. Map showing thickness of Morrow rocks. Thickness lines are dashed where pro jected; interval is 20 feet. Numbers indicate thickness, in feet. (See fig. 11 and table 3 for well number and location.) Stipple indicates possible reservoir area around well reported as producing or having a show of gas; diameter is arbitrarily shown as 1 mile to agree with well spacing.

sandy limestone, and some medium-gray siltstone. The limestone in the upper part of the Bloyd grades laterally to the southwest into a fine- to medium-grained limy sandstone.

ATOKA SERIES

The Atoka Series consists of the Atoka Formation. In this report, the Atoka Formation has been divided into three lithologic parts which were further subdivided into zones on the basis of electrical log characteristics. The zones are numbered in nonconsecutive order from 1 near the top of the formation to 109 near the base (pis. 2,4).

The Atoka Formation overlies the Bloyd and is unconformably overlain by the Hartshorne Sandstone. In northern Arkansas where the contact between the Atoka and the underlying Bloyd is exposed, it is unconformable. In the area of this report the contact relations cannot be determined with certainty, but the contact is probably unconformable. In this report, the base of the Atoka is placed at the base of the first sandstone (base of sandstone in zone 109 or zones 108

and 109, pis. 2, 4) above beds of Bloyd-type lithology (shale containing limestone, sandy limestone, and limy sandstone). Light-colored bentonitic(?) shale is in or just above the upper part of the sandstone in zone 109 or zones 108 and 109 (pi. 2, wells 158, 137, 72, 115, 50, 96, and 134). Frezon and Schultz (1961) described this as a marker bed in the lowermost Atoka. However, in parts of the Van Buren and Lavaca quadrangles and elsewhere in Arkansas, the base of the Atoka is difficult to identify because the limestone in the upper part of the Bloyd grades into sandstone, and more than one bed of bentonitic shale exists in the lowermost 700 feet of the Atoka.

The amount of erosion at the unconformity between the Atoka Formation and the overlying Hartshorne Sandstone is uncertain. In well 36 the Atoka sequence between the top of zone 1 and the base of the Harts horne Sandstone is 185 feet thick; the same unit in well 38 (pi. 4, sec. X-X'), about 1 mile to the southwest, is only 110 feet thick; and in well 37, about 1 mile west of well 38 (pi. 4, sec X-X'}, the unit is only 82 feet

VAN BUREN AND LAVACA QUADRANGLES, ARKANSAS AND OKLAHOMA A15thick. A complementary thickening of the Hartshorne Sandstone occurs in wells 36 and 37; thus post-Atoka erosion removed as much as 103 feet of Atoka in the area of these wells. Atoka rocks are 223 feet thick above zone 1 in well 167 (pi. 4, sec. F-F'); thus, a comparison between wells 37 and 167 suggests that post-Atoka ero sion removed as much as 141 feet of Atoka rocks. How ever, regional thickening of the rocks above zone 1 may account for the southward thickening between these two wells, and for as much as 101 feet of southward thickening between wells 37 and 143 (pi. 4, sec. F-F').

The Atoka is known to range in thickness from 4,375 to 6,755 feet, and it may be as much as 8,800 feet thick in the southeastern part of the report area (fig. 8).

In comparing the thickness of the Atoka (pi. 4; fig. 8) in relation to the structure of the Hartshorne Sandstone (top of the Atoka) (pi. 5), it is apparent that in most of the area the Atoka is thinner where folded into anticlines and thicker where folded into synclines, and that where the Atoka changes thicknesses all parts of the Atoka thicken or thin in proportion. Such a relationship sug gests that the anticlines and synclines were developing during the deposition of the Atoka. It is also possible to conclude that displacement occurred along many, if not all, of the major faults shown on plate 5 during the deposition of most of the Atoka. Many of the major faults are in the area between thick and thin Atoka, and the thicker part of the Atoka is on the downthrown side.

In this report, the Atoka is arbitrarily divided into three parts or groups of zones as shown in table 1. The thickness of each part is shown in figure 8. If the thick ness changes reflect tectonic movements during deposi tion, then a study of the thickness maps of the three parts of the Atoka shows that, in most of Van Buren and in northern Lavaca quadrangles, the amount of flexing was greatest during deposition of the lower part of the Atoka and least during deposition of the upper part.

The thickness of the sandstone in some of the numbered zones (figs. 9, 10) seems to have been influenced by this flexing, particularly in zone 93 (fig. 9Z>). The thickness trends in zone 93 are about parallel to the thickness trends of the lower part of the Atoka (fig. 8A). The thickness trends in zones 98, 99, and 100 (fig. WA-C} seem to be parallel to those in the lower part of the Atoka in some areas, but the thickness trends in zone 101 (fig. 10Z>) are not parallel in any area. The thickness trends of the sandstone in zones 58 and 67 (fig. 95, (7) are somewhat parallel to those of the middle part of the Atoka (fig. 8B) in a few areas. The thickness trends in zone 28 (fig. 94) in some areas are parallel to those in the upper part of the Atoka (fig. 8(7).

TABLE 1. Division of the Atoka Formation in Van Buren and Lavaca quadrangles, Arkansas and Oklahoma

[The Hartshorne Sandstone overlies zone 1, and the Bloyd Formation underlies zone 109]

Zone number in this report

1

4

6

7

10

15

18

19

24

28

50

53

55

57

58

59

60

62

63

66

67

71

72

73

74

78

79

80

82

83

84

85

90

92

93

95

96

97

98

99

100

101

105

108

109

Part of Atoka in

this report

Upper

Middle

Lower

Informal nomenclature used by local oil and gas industry

Carpenter sand, Carpenter "A" sand

Upper Alma sand

w Middle Alma sand

TsOT

§ Lower Alma sand<J

Lower Carpenter sand, Carpenter "B" sand

Morris sand

OJ1"3

5 Areci sand

Bynum sand

Lower Bynum sand

Freiburg sand

Casey sand

Vernon sand

Dunn "A" sand, Sells sand

« Ralph Barton sand, Dunn "B" sand, Jenkins sand33 ^ Dunn "C" sand, Dawson sand

g Paul Barton sand, Lower Dawson sand

Cecil Spiro sand, Hamm sand

Patterson sand

Spiro sand, Kelly sand


35°15 F

A. CANE HILL MEMBER OF HALE FORMATION

.T.V//;'(lt(->/ f // / \ \ wn\ _-\

35°15'

. PRAIRIE GROVE MEMBER OF HALE FORMATION

FIGURE 7. Maps showing thickness of the Cane Hill and Prairie Grove Members of the Hale Formation and the thicknesses of the Hale and the Bloyd Formations, all of Morrow age. Thickness lines are dashed where projected; interval is 10 or 20 feet. Numbers indicate thickness of mapped unit, in feet. (See fig. 11 and table 3 for well number and location.) Stipple indicates possible reservoir area around well reported as producing or having a show of gas; diameter is arbitrarily shown as 1 mile to agree with well spacing.


"30' 15' 94°

A17

VAN BUREN 10?\ QUADRANGLE

1U34- 4- +, 35°15

C. HALE FORMATION

35°30'94°30' 94°00'

I 279-t-^-«^+\

^;0|7(st^. +293 "^ *29(U 2924 !2^^

^Oo^287t-^P/T «3°4-7 ^t:<r 262/+310

35°15

. x^^-^ \ "/ x^- \\ I il/VAN BUREN

" ^// ° 377^52 //QUADRANGLE5 . 15 , .^y/ \37Ze+yA+422___

LAVACA QUADRANGLE

10 MILES _______I

Z). BLOYD FORMATION

EXPLANATION

Well producing gas

* Well with show of gas





35°15VAN BUREN QUADRANGLE LAVACA QUADRANGLE

A. LOWER PART

VAN BUREN QUADRANGLE LAVACA QUADRANGLE

B. MIDDLE PART

FIGURE 8. Maps showing thickness of the lower (from the base of the Atoka to the top of zone 83), middle (from the top of zone 83 to the top of zone 58), and upper (from the top of zone 58 to the top of the formation) parts of the Atoka Formation, and its total thick ness. Thickness lines are dashed where projected; interval is 100 feet. Numbers indicate thickness of mapped unit, in feet. (See fig. 11 and table 3 for well number and location.) show of gas, including areas around wells not identified in this report and drilled before 1936; diameter is arbitrarily shown as 1 mile to agree with well spacing.


°30' 15' 94°00'

A19

35°15'VAN BUREN QUADRANGLE LAVACA QUADRANGLE

C. UPPER PART

35°15VAN BUREN QUADRANGLE

D. TOTAL THICKNESSLAVACA QUADRANGLE

EXPLANATION






A20'94°30'

35°30'


15' 94°

35°15'

A. ZONE 28

VAN BUREN QUADRANGLE

35°15" *

B. ZONE 58

FIGURE 9. Maps showing thickness of the sandy parts of zones 28, 58, 67, and 93 in the Atoka Formation. Thickness lines are dashed where projected; interval is 20 feet. Numbers indicate thickness of mapped zone, in feet. (See fig. 11 and table 3 for well number and location.) Stipple indicates possible reservoir area around well reported as producing or having a show of gas, including areas around wells not identified in this report and drilled before 1936; diameter is arbitrarily shown as 1 mile to agree with well spacing.


"30' 15' 94

A2100'

35°15

C. ZONE 67

94°30' 94°00'

35°15'

D. ZONE 93

EXPLANATION







°30' 15' 00'

35°15

. ZONE 98

94°00'

35°15

B. ZONE 99

FIGURE 10. Maps showing thickness of the sandy parts of zones 98, 99, 100, and 101 in the Atoka Formation. Thickness lines are dashed where projected; interval is 20 feet. Numbers indicate thickness of mapped zone, in feet. (See fig. 11 and table 3 for well number and location.) Stipple indicates possible reservoir area around well reported as producing or having a show of gas; diameter is arbitrarily shown as 1 mile to agree with well spacing.


35°15'

C. ZONE 100

94°30' 94°00'

D. ZONE 101

EXPLANATION

Well producing gas






Electrical log correlations, some of which are shown on plate 4, and electrical log and litbological log correlations, some of which are shown on plate 2, suggest that many zones thicken because of the addition of sandstone and siltstone above the shale at the base of the zones. (See zones 18, 28, 50, 93, and 105, pi. 4.)

In the report area the Atoka is about 55 percent shale, much of which is silty, 20 percent light- to dark-gray siltstone, and 25 percent very light to medium-gray sandstone. A few thin beds of bentonitic (?) shale, limestone, and coal are interspersed in these clastic beds. The shale is mostly dark gray, but it is also commonly grayish black. Where exposed, the shale is fissile bedded. Well-preserved plant fossils are present above the coal bed in the W^NE^SE^ sec. 3, T. 9 N., R. 32 W., and in the SW^NE^ sec. 32, T. 10 N., R. 30 W. The siltstone, where exposed, is thin to thick bedded, foreset bedded in part, lenticular bedded in part, and commonly ripple marked; fossil plant fragments are common and marine fossils are sparse. The exposed sandstone is thin bedded, very fine grained, and ripple marked where a sandstone unit (two or more beds of sandstone) is thin, and it is thick to massive bedded and fine to coarse grained where a sandstone unit is thick. Where a sandstone unit is thin, the sandstone generally is gradational with the under lying siltstone; and where a unit is thick, the sandstone may overlie siltstone or shale with a channel-type contact. The top of thin or thick sandstone units is flat and generally is overlain by nonsilty dark-gray or grayish-black shale which in many places contains plant fossils or a coaly zone just above the sandstone. Fragments of plant fossils are common in the sandstone; marine fossils are common only at water level on the north side of Lee Creek in the NW. cor. sec. 6, T. 9 N., R. 32 W., and in a streambed just north of the report area near the center of NWftNEtfSWtfSWK sec. 33, T. 10 N., R. 32 W.

DES MOINES SERIES, KREBS GROUP

The Krebs Group consists of, in ascending order, the Hartshorne Sandstone, McAlester Formation, Savanna Formation, and Boggy Formation. The Boggy Forma tion and most of the Savanna Formation have been removed from the area of this report by erosion.

HARTSHORNE SANDSTONE

The Hartshorne Sandstone of this report is the first laterally continuous sandstone unit below the Lower Hartshorne coal bed and is the lower sandstone member of the Hartshorne Sandstone of Oklahoma (fig. 2). It overlies the Atoka Formation unconformably and is conformably overlain by the McAlester Formation.

The thickness of the Hartshorne ranges from 15 feet in shallow hole 271 to 229 feet in well 134.

The Hartshorne is mostly very light to light-gray very fine to fine grained sandstone but contains a few gray siltstone beds and lenses and thin layers of dark- gray shale. In the southwestern part of the Lavaca quadrangle, the formation consists of two sandstone units separated by a unit, about 50 feet thick, of dark- gray silty shale and dark-gray shale.

The bedding is thin to massive and is regular, ir regular, lenticular, foreset, or convolute. Fragments of plant fossils are common.

The formation is well exposed in the quarries in sees, 5 and 6, T. 8 N., R. 29 W., and sec. 17, T. 9 N., R. 31 W., and along Mill Creek in sec. 32, T. 9 N., R. 29 W.

M'ALESTER FORMATION

The McAlester conformably overlies the Hartshorne and is overlain by the Savanna Formation with a con tact that, according to Hendricks and Parks (1950, p. 76), represents a minor unconformity. Haley (1961, p. 7) reported that the McAlester and Savanna in the vicinity of Paris, Ark. (about 18 miles east of the report area), have an interfingering relationship. Merewether and Haley (1969) stated that the formations interfinger in the vicinity of Clarksville, Ark. (about 30 miles east of the report area). In the southeastern part of Van Buren quadrangle (pi. 1) where the basal sandstone of the Savanna is in channels cut in shale of the McAlester, the contact appears unconformable, but the lateral ex tent of the channels could not be determined because of alluvial cover. In northwestern Lavaca quadrangle, a study of the lithologic logs of the shallow holes seems to indicate that the two formations interfinger.

The McAlester is about 715, 700, and 705 feet thick in wells 33, 35, and 36, respectively, in northwestern Lavaca quadrangle, and is estimated to be as much as 950 feet thick in the southeastern part of the Lavaca quadrangle (pi. 6).

The McAlester Formation is mostly shale with a minor amount of siltstone and sandstone. The shale is dark gray, nonsilty, and fissile bedded for the most part. A persistent zone of dark-gray to grayish-black shale (25-60 ft. thick) is present about 100 feet above the base of the formation. Pyrite and ironstone concretions are common in all the shale. Scattered plant and in vertebrate fossils and phosphate pellets are present (pi. 3). The siltstone is light to medium gray and clayey in part. It is generally thin, irregularly bedded, and ripple marked. Mica and plant fragments are common. The sandstone is light to medium gray, very fine grained, very silty, and clayey. Bedding ranges from thin to thick and is regular to irregular or convolute. The lower


Hartshorne coal bed is present near the base of the formation everywhere in the two quadrangles.

SAVANNA FORMATION

The Savanna Formation has been partly or totally removed by erosion from the report area. The remain ing Savanna is about 500 feet thick in northwestern Lavaca quadrangle and about 1,100 feet thick in southeastern Lavaca quadrangle (pis. 3, 6).

The Savanna is mostly shale with some siltstone and a minor amount of sandstone. Thin coal beds are common in the lower 140 feet. Rocks in the Savanna weather light greenish brown, in contrast to the rocks in the McAlester, Hartsborne, and Atoka, which generally weather gray. The shale is mostly dark gray, micaceous, and slightly silty to silty. Some of the shale is light to medium gray and, from the appearance of the rock samples from shallow holes, is nonbedded; thus it could be either claystone or underclay. Ironstone con cretions are common in the shale, and pyrite is present in some places. The siltstone is light to medium gray, micaceous, and very finely sandy in part and shows common sediment-flow features. The sandstone is light to medium gray, very fine grained, very silty, and generally clayey. Sediment-flow features are so prev alent that they aid in differentiating the sandstone of the Savanna from the sandstone of the underlying formations. Excellent examples of sediment-flow fea tures are exposed in the quarry and road junction in the SWJi sec. 9, T. 7 N., R. 31 W., in the quarry in the SEtfNWK sec. 17, T. 7 N., R. 31 W., and in the quarry in the NW% sec. 16, T. 7 N., R. 31 W. The channeloid character of some of the sandstone in the Savanna is well exemplified in the NE)f sec. 19, the NW% sec. 20, the SWtfNWtf sec. 3, and the NEK sec. 2 in T. 7 N., R. 31 W.; the SEJi sec. 13, T. 7 N., R. 29 W.; and in the adjoining corners of sees. 19, 20, 29, and 30, T. 7 N., R. 28 W.

The Charleston coal bed is near the base of the for mation, and the Paris coal bed is hi the upper part of the formation. Marine fossils are present in an iron-iich limestone above the Paris coal bed. Plant fossils are common in the shale, and fragments of plant fossils are common in all rock types.

QUATERNARY SYSTEM

TERRACE DEPOSITS

Alluvial material is present in terrace deposits at two levels along many streams and in discontinuous terrace deposits at a single level along the Arkansas River. The upper terrace, common to both the smaller streams and the Arkansas River, is 30-40 feet above the present drainage levels. The lower terrace, recognizable along

local streams only, is generally less than 10 feet above the present drainage levels. The alluvial material deposited by the Arkansas River contains abundant pebbles and cobbles of chert that help to distinguish it from terrace deposits of local origin. Some chert pebbles contain fusulinids. These pebbles must have been transported from north-central Oklahoma by the Arkansas River. Stream-terrace deposits in sees. 2, 3, 10, and 11, T. 9 N., R. 32 W., contain widely scattered pebbles and cobbles of chert that probably were trans ported by Lee Creek from an outcrop of the Boone Formation about 18 miles north of the report area. The upper terrace deposits may be Pleistocene in age (Hendricks and Parks, 1950, p. 78, pi. 13; and Miser, 1954.)

ALLUVIUM

Alluvial material is present along the Arkansas River and along most local streams. The alluvium along the river generally is less clayey and contains coarser grains of quartz than the alluvium along the local streams.

STRUCTURE

Van Buren and Lavaca quadrangles are in the northern part of the Arkansas Valley section of the Ouachita province and in the extreme southern part of the Ozark Plateaus province (fig. 1). The rocks have been broadly folded and broken by north- or south- dipping normal faults, (pis 5, 6). The Arkansas Valley section is separated from the Ozark Plateaus province by a southward-dipping normal-fault system across which the displacement may be as much as 2,500 feet. The elevation of the base of the Hartshorne Sandstone ranges from about 1,450 feet below sea level in the southeastern Lavaca quadrangle to an estimated 3,000 feet above sea level in northwestern Van Buren quad rangle, a structural relief of about 4,450 feet.

FOLDS

Folds in the report area consist of eastward-trending anticlines and synclines whose limbs have been broken in many places by normal faults. The limbs of the folds dip less than 10° except near fault zones, where they may dip as much as 25°. Hendricks and Parks (1950) based their report on the Fort Smith district on geologic information gathered prior to 1934 and thus did not have advantage of the wealth of information that can be obtained from the records of wells and shallow holes drilled since that time. This new information plus field mapping by Haley (1960, 1961) has shown that the rocks in the northern two-thirds of the Van Buren and Lavaca quadrangles are faulted to a far greater extent than Hendricks and Parks realized. Consequently, many of the folds shown on plate 13 of their report either


do not exist or cannot be identified with certainty. Those folds that can be identified are shown wherever possible on plates 1, 5, and 6.

Central, Bloomer, and Charleston synclines are the only synclines that are not bounded on both sides by normal faults, and the Biswell Hill anticline is the only anticline that is not bounded on both sides by normal faults (pis. 5, 6). The rest of the synclines are essentially grabens, and the anticlines are horsts. How much of the folding is the result of drag induced by the faulting is unknown, but it seems likely that folding and tilting did occur during the faulting. If the structural sections shown on plate 6 are reconstructed to remove the displacement across all faults that cut the top of the Atoka Formation, the result is structural relief of about 2,100 feet in section A-A' and B-B' between the top of the Atoka on the crest of the Cecil anticline and the top of the Atoka in the trough of the Bloomer syncline. This amount of structural relief at the top of the Atoka must represent post-Atoka folding and faulting of the rocks in the area.

If at the end of Atoka time the top of the Atoka Formation in the report area was about level, then the base of the Atoka had a measurable structural relief of at least 2,380 feet and an estimated structural relief of as much as 4,500 feet (based on fig. SD). This structural relief on the base of the Atoka can be attributed to folding or faulting, or to a combination of folding and faulting, all of which occurred during Atoka time.

FAULTS

Faults in the report area are normal and dip either north or south at angles of 33°-63°; however, the dip of most of the faults is 40°-50°. Maximum dis placement across the faults ranges from 10 feet to 2,500 feet. Where faults with opposing dips intersect, some of the south-dipping faults terminate downward against north-dipping faults, whereas all the north- dipping faults apparently are terminated by south- dipping faults; in eithei case the throughgoing faults everywhere have larger displacements than any of the opposite-dipping intersecting laults.

Fault planes known to have been penetrated by wells have been projected to the surface, even though a few may not reach that far. The extensive alluvial cover, particularly along the Arkansas River, obscures the bedrock, and therefore the surface traces of only a few faults could be verified.

In this publication the reported amount of displace ment across a particular part of a fault is determined by the stratigraphic displacement. The amount of movement along the fault will everywhere be larger because the fault planes are inclined rather than vertical.

Six wells in the report area cut faults that have a greater stratigraphic displacement in rocks below the Hartshorne than at the base of the Hartshorne Sand stone. Well 13 cut two faults with measured displace ment totaling 1,277 feet at depth and decreasing to about 650 feet at the base of the Hartshorne; in other wells, displacements decrease upward from 310 to 200 feet in well 22, 1,487 to 800 feet in well 57, and 595 to 150 feet in well 87. Well 38 cut a fault with 420 feet of displacement that decreases to 200 feet in younger rocks in well 39 and about 150 feet at the base of the Hartshorne. Many other wells including wells 10, 22, 23, 34, 35, 36, 37, 39, 65, 88, 102, and 103 cut faults estimated to have a greater displacement in rocks below the Hartshorne than at the base of the Hartshorne. All these wells, except well 57, are in areas where the Atoka thickens.

The amount of displacement at different places along the Mill Creek fault can be determined from the follow ing table, in which the wells are listed from east to west.

No. of well Displacement Deptb (ft.) (ft.)

5_--______________-6. .. ....._._._..__.18_. .._._._..._. ...19--.__ _ __-___-20___ _____.___.....21. ..___.____._.___22.. _______________24_________________54_________________

___________ 598-___._--___ 635___________ 656___________ 645___________ 615___________ 598___________ 747-____-_.___ 405___________ 468

3,975800

4,505774

2,668500

2,896970

3,152

The amount of displacement along the Mill Creek fault increases from well 54 eastward, and (except for well 22) the difference in magnitude cannot be associated with the age of rock cut by the fault (compare well 5 with 6 and well 18 with 19). Well 22 is the only well in this group that cuts the fault in the area of thickening of the Atoka (fig. SD). The displacement across the fault in this well decreases upward to about 450 feet at the base of the Hartshorne.

The increasing displacement of faults at depth and the relation of thicker Atoka on the downthrown side of the faults indicate that faulting occurred in the area during the deposition of the Atoka.

The lower part of the Atoka (fig. SA) is, in general, thicker in the synclines than on the anticlines, indicat ing that faulting, or possibly folding, was occurring by the time that zone 83 was deposited. The similarity of the thickness trends shown in figure QD to the thickness trends in the lower part of the Atoka suggests that sand deposition in zone 93 was affected by the faulting and is greater in the areas of the synclines. In some areas, the similarity of the thickness trends of the


sandstone in zones 99 and 100 (fig. 105, (7) to the thickness trends in the lower part of the Atoka suggests that faulting affected some sand deposition in these zones. Thickness trends indicate that deposition of zone 101 (fig. 10Z>) and of Morrow rocks (figs. 6, 7) was not affected by contemporaneous faulting. Thus faulting in the report area may have started after zone 101 was deposited and before zone 100 was deposited and continued at least through the time of deposition of the youngest part of the Savanna Formation that is present.

ECONOMIC GEOLOGY

COAL

Coal beds are present in the Atoka, McAlester, and Savanna Formations. The Lower Hartshorne, Charles ton, and Paris coal beds have been mined in some areas. The outcrops of known coal beds are shown on plate 1; the extent, known thickness, and mined areas of known coal beds are shown on plate 5. All coal in the report area is classified as low-volatile bituminous

(Haley, 1960, pi. 62) on the basis of percentage of dry mineral-matter-free fixed carbon, in accordance with the specifications of the American Society for Testing and Materials (1964). Estimated original reserves are tabulated in table 2 in accordance with standards and procedures established by Averitt (1961, p. 14-26).

COAL BEDS IN THE ATOKA FORMATION

All coal beds in the Atoka are thin 6 inches or less and of poor quality. The extent of the coal beds is unknown.

COAL BEDS IN THE McALESTER FORMATION

The Lower Hartshorne coal bed near the base of of the McAlester Formation is the thickest, most extensive, and most economically important coal bed in the report area. Its known thickness ranges from 8 to 72 inches. It is under less than 1,000 feet of over burden except in the southeast corner of the Lavaca quadrangle. The thickness, amount of overburden, mined areas, and reserve categories of the coal in the Lower Hartshorne are shown on plate 5.

TABUS 2. Estimated original reserves of coal in the Arkansas part of Van Buren and Lavaca quadrangles, Arkansas and Oklahoma

Reserves, in millions of short tons, in beds of thickness stated

Overburden (ft)Measured and indicated reserves Inferred reserves

Thickness of coal (inches)

14-28 28-42 42+Total


14-28 28-42 42+Total

Total reserves, all categories


14-28 28-42 42+Total

LOWER HARTSHORNE COAL BED

Crawford County

0-1,000__.... 0.148 0.910 0.114 1.172 13.478 8.614 0.721 22.813 13.626 9.524 0.835 23.905

Franklin County

1,0-1, 000_____

000-2, 000___._Total __ _

... 0.841 ...__....

-__ .841 .__.____.

..__.___ 0.841

._...._. .841

4. 194, .848

5.042

4.

.___.... 5.

194 848 042

5. 5.'

035 .__.-.._.848 __.._..-.883 .___._...

.....__. 5.

._.____. 5.

035848 883

Sebastian County

1,0-1,000 .._

000-2, 000. ____Total __

.._ 1.686 2.731

___ 1.686 2.731

3. 207 7. 624

3. 207 7. 624

14. 983 .638

15. 621

15. 338

15. 338

3. 114 33.

3. 114 34.

435 638 073

16.

17!

669 18. 069 638 .._.._._.307 18. 069

6. 321 41.

6. 321 41.

059 638 697

All counties

1,0-1, 000_____

000-2,000 _ __Total _ __

___ 2.675 3.641

__ 2.675 3.641

3. 321 9. 637

3. 321 9. 637

32. 655 1.486

34. 141

23. 952

23. 952

3. 835 60. .__.__-. 1.

3. 835 61.

442 486 928

35. 1.

36.

330 27. 593 486 __-._.-..816 27. 593

7. 156 70. . _ __ 1.

7. 156 71.

079 486 565

CHARLESTON COAL BED

Franklin County

0-1, 000. 0.477 _..____._._.____ 0.477 1. 980 ________________ 1.980 2.457 2.457


TABLE 2. Estimated original reserves of coal in the Arkansas part of Van Buren and Lavaca quadrangles, Arkansas and Oklahoma Continued

Reserves, in millions of short tons, in beds of thickness stated

Overburden (ft)Measured and indicated reserves Inferred reserves Total reserves, all categories


14-28 28-42 42+Total


14-28 28-42 42+Total


14-28 28-42 42+Total

CHARLESTON COAL BED Continued Sebastian County

0-1,000______ 0. 174 __...___..._.... 0.174 0.545 0. 545 0. 719 0.719

PARIS COAL BED Franklin County

0-1, 000. 0.138 ___________ 0.138 0.277 ____.______ 0.277 0.415 0.415

ALL COAL BEDS, ALL COUNTIES

0-1, 000 _ .._1,000-2,000 __ ...

Total. _ ..

.-_ 3.464

.... 3.464

3.641

3. 641

3. 321

3. 321

10. 426

10. 426

35. 457. 1. 48636. 943

23. 952

23. 952

3.835

3.835

63. 244 38. 921. 1. 486 1. 48664. 730 40. 407

27. 593

27. 593

7. 156

7. 156

73. 6701.486

75. 156

An estimated 71,565,000 short tons of coal in the Lower Hartshorne was present in the Arkansas part of the report area prior to mining. The amount of coal that has been mined and lost in mining is unknown but is estimated to be 723,000 short tons; thus about 70,800,000 short tons of Lower Hartshorne coal is estimated to remain. The amount of coal present in the Oklahoma part is unknown, but approximately 2,880 acres are underlain by the Lower Hartshorne coal bed. If the coal averages 24 inches in thickness, about 10,370,000 short tons of coal was present before the start of mining. The Lower Hartshorne coal in the Oklahoma part of the area was briefly described by Trumbull (1957).

GOAL BEDS IN THE SAVANNA FORMATION

Many coal beds are present in the Savanna Forma tion, particularly in its lower part (pis. 3, 5), but only the Charleston and the Paris are sufficiently thick and extensive to be of economic importance. The Charleston is near the base of the formation and is not known to be more than 24 inches thick. The coal bed that is mined in the southeastern part of the report area as the Charleston coal is one of at least three coal beds in or just above the basal sandstone of the Savanna. The coal bed mined as Charleston coal probably is a single continuous bed, but, as most of the coal beds in the Savanna are lenticular and of local extent, the coal possibly is in discontinuous lenses at about the same stratigraphic position.

The outcrop and all known surface measured thick nesses of the Charleston coal bed are shown on plates 1 and 5, and the known mined areas are shown on plate 5.

The amount of coal in the Charleston bed mined and lost in mining is unknown, but it is probably less than 100,000 tons; more than 3,000,000 short tons of Charleston coal probably remain. This estimate per tains to the southern part of the Lavaca quadrangle. Coal is present in the northwestern part of the Lavaca quadrangle, but reserves cannot be estimated because there the thickness of coal is unknown. Additional coal may be present in west-central Van Buren quadrangle.

The Paris coal bed, in the upper part of the Savanna Formation, is present only in the southeastern part of the Lavaca quadrangle. (See pis. 1, 5.) It has been removed by erosion elsewhere. The Paris coal is not known to be more than 18 inches thick.

So far as is known, the Paris coal has not been mined in the report area, but it has been rather extensively mined in the area immediately to the southeast.

OIL AND GAS

Oil has not been discovered in the report area, but blebs and streaks of solid hydrocarbons have been noted in the rock samples of the Everton, St. Peter, and Joachim Formations undivided in wells 57 and 134, the St. Clair Limestone in wells 57, 63, and 158, and the Penters Chert in well 136. This suggests that liquid hydrocarbons were once present in these pre-Carbonif- erous rocks and have been devolatilized by heat and pressure.

Natural gas has been reported as a show from lime stone in the Plattin Limestone, as being produced from limestone and dolomite in the St. Clair Limestone, as being produced from chert in the Penters Chert and the Boone Formation, as a show from limestone in the Pitkin Limestone and from siltstone in the Cane Hill


T. 12 N

T. 11 N

-*H- . r % 4frr*« 4.^4//42»~r! .1? FJleo^ li^TjlM^-^

^;,«;^--;i>,> ,'V^^Sfecs > T,3" >KuTif..Mi «

3% VAN BUREN + LA VAC A QUADRANGLE QUADRANGLE

94°00'

T. 10 N.

T. 9 N.

T 8 N.

T. 10 N

T. 7 N.

R.28W.

EXPLANATION

^-- PENO ~~~-^

Gas fieldDashed line indicates approximate

boundary of named gas field

Electrical log correlation lineShown on plate 4

Possible reservoir area arouna well reported as producing or having a show of gas

Diameter arbitrarily shownas 1 mile to agree with well spacing

Producing gas

^136 ^Show of gas

4-143 + .No show of gas

WellsSymbol without number indicates

well not identified in this report and drilled before 1936. Symbol with number designates well listed in table 3

Well being drilled as of Sept. 30, 1966

FIGUBE 11. Location of wells drilled in the Van Buren and Lavaca quadrangles.

Member of the Hale Formation, and as being produced from sandstone in the Prairie Grove Member of the Hale Formation and in the Bloyd and Atoka Forma tions. The Atoka Formation has yielded the most gas, and the Prairie Grove Member is the next most pro ductive. Information on the occurences in wells drilled as of September 30, 1966, is in table 3. The distri bution of gas found in all wells is shown in figure 11.

The reservoir rock for the gas in the Prairie Grove Member of the Hale Formation and in the Bloyd Forma tion is limy sandstone, and the amount of gas is in versely proportional to the amount of lime cement. Probably this lithologic control of the porosity and permeability is responsible for the scattered distribution of producing wells and groups of producing wells (figs. 6, 7). The accumulation of the gas in the Prairie Grove and in the Bloyd is apparently unrelated to the thickness of these rock units or to the thickness of the total

Morrow (figs. 6, 7). However, most of the Morrow gas wells are in those areas where the lower part of the overlying Atoka is thin (compare fig. 6 with fig. 8A). Such a relationship can be explained by the migration of gas that originated in the Morrow to the top of the structures formed in Morrow reservoir rocks during the deposition and faulting of the lower part of the Atoka Formation. In areas where the Atoka is thicker (wells 10 and 24, for example), the gas may not have migrated because of lithologic barriers such as abundance of lime cement, or possibly because the early Atoka faults broke the continuity of the reservoir rocks before the gas had an opportunity to migrate to a higher part of the structure.

Commercial quantities of gas have been produced from 12 zones in the Atoka, and shows of gas have been reported from eight other zones in the Atoka Forma tion (table 3). The reported interval of gas production

414-469 O - 71 - 3


and gas shows is shown for each well on plate 4. The distribution of gas in certain zones is shown in figure 9. Zones 28 and 58 have been the most productive to date (fig. 9-4, B) . Gas production from these zones began in 1904 when the Massard Prairie gas field was discovered. Later, production began from the Kibler gas field in 1915, the Williams gas field in 1918, the Alma gas field in 1922, the Lavaca part of the Ewing gas field in 1928, and the Vesta gas field in 1932. Declining production indicates that much of the gas has been drained from these zones in the above fields.

The reservoir rock for the gas in the Atoka Formation is sandstone, which in the better producing reservoirs is nonlimy, well sorted, coarser than very fine grained, and quartzose. Clay, silt, and very fine grained sand in the sandstone inhibit the production of gas by reducing permeability and porosity. Most gas in the Atoka For mation appears to be entrapped by variations in porosity because there is not any discernible relationship between the distribution of the gas and (1) the thickness of the rock unit containing the gas, (2) the thickness of the rock unit or units above the gas reservoir, and (3) its present-day structural position (compare pi. 5 and figs. 8-11).

Maximum porosity values were calculated by William L. Pugh, consultant petroleum engineer, Denver, Colo., from available electrical logs of wells drilled through zones 58, 67, 93, 98, 99, 100, and 101. These values are plotted (pi. 7) relative to the thickness of the sand stone in their respective zones. The information shown on plate 7 and in figures 9 and 10 is summarized below.

Zone No.Range ofmeasuredthickness

(feet)

Minimum thickness of commercial production

(feet)

Range of thickness of calculated 10

percent or less maximum

porosity (feet)

58_. 67.. 93..98..99..100.101.

33-244 60-32532-16933-12622-2057-1320-90

100887056603027

54-136 72-146 37-150 34-126 22-169 7-106 11-75

Some wells drilled prior to 1936 in zone 58 produce gas from areas where the sandstone may be as thin as 84 feet (pi. 7A).

Equal porosity lines based on the data on plate 7 of this report can be positioned to show either a southward or an eastward alinement for nearly all zones. An example of each alinement for zone 98 is shown in figure 12. The southward alinement of porosity as shown in figure 12A would result from (1) winnowing of the

sediments by the southward-flowing streams, (2) little, if any, winnowing along an eastward-trending shoreline of the Atoka Sea, and (3) a direct relationship between higher porosity and thicker sediments. The eastward alinement shown in figure 12B would result from (1) a minor amount of winnowing by the southward-flowing streams, (2) a major amount of winnowing along the eastward-trending shoreline of the Atoka Sea, and (3) little if any relationship between higher porosity and thicker sediments.

Which of the poro&ity alinements shown for zone 98 is more nearly correct in the report area cannot be determined from the available porosity, thickness, and lithologic data, but an eastward alinement is more in harmony with the lithologic characteristics and assumed depositional environment of the Atoka Formation.

Bartlett (1966, p. 144, fig. 8) reported a southward alinement of producing wells in the area east of Lavaca quadrangle. He attributed this alined production to the presence of southward-elongated areas of high porosity in the Dunn "A" sand (zone 98).

BUILDING STONE

Blocks and slabs of sandstone from the Atoka and McAlester Formations have been used as building stone on many buildings in the report area, and slabs of sandstone from the McAlester Formation have been used as flagstone in the city of Fort Smith. The Harts- home Sandstone has been the source of excellent quality building stone in Arkansas. Sandstone with even foreset beds as much as 50 feet long and 2-8 inches thick is being quarried in the area east of the Lavaca quad rangle, and some stone has been quarried from the Harts- horne in northeastern Lavaca quadrangle. However, in most of the area of this report the sandstone beds in the Hartshorne are too thick, thin, irregular, or lenticular to be used as sources of building stone. Shale in the McAlester Formation has been used in making brick and tile in the vicinity of Fort Smith.

ROAD METAL

Shale, shale and siltstone, and sandstone in the Atoka, Hartshorne, McAlester, and Savanna Formations have been quarried in these quadrangles for road metal and for riprap along the Arkansas River. The gravel, sand, silt, and clay in the uppermost Arkansas River terrace deposits have been extensively used as road metal.

GRAVEL, SAND, AND CLAY

Gravel, sand, and clay is present in the river and stream terraces and alluvium. Most of the gravel and sand has been obtained from the river terraces and alluvium, but some has been dredged from the channel of the Arkansas River.


94°00'

EXPLANATION

35°15MAXIMUM POROSITY VALUES CONTOURED TO SHOW

NORTH-SOUTH POROSITY TREND

Area of maximum porosity value

Area of maximum porosity value

Area of maximum porosity value of 10 percent or less

Thickness linewhere projected. Interval

20feet

Well producing gas


r SK *&&&^£ft?te;;!&. a c -;&. ? .5 :. >;

LAVACA QUADRANGLE

10 MILES

94°00'

35°15'

B. MAXIMUM POROSITY VALUES CONTOURED TO SHOW

EAST-WEST POROSITY TREND



Well that did not penetrate zone or that has unavailable or in complete records

22

Maximum porosity, in percent, as determined from electrical logs

5 denotes 5 percent or less porosity

FIGUKE 12. Possible maximum-porosity trends in the sandstone part of zone 98 of the Atoka Formation in Van Buren andLavaca quadrangles, Arkansas and Oklahoma.


REFERENCES CITED

American Society for Testing and Materials, 1964, Standardspecifications for classification of coals by rank [ASTMdesignation D 388-38], in 1964 Book of ASTM Standards:Am. Soc. for Testing and Materials, pt. 19, p. 71-76.

Averitt, Paul, 1961, Coal reserves of the United States Aprogress report, January 1, 1960: U.S. Geol. Survey Bull.1136, 116 p.

Bartlett, C. S., Jr., 1966, Arkoma's search for porosity broadens:Oil and Gas Jour., v. 64, no. 4, p. 126-144.

Collier, A. J., 1907, The Arkansas coal field, with reports on thepaleontology by David White and G. H. Girty: U.S. Geol.Survey Bull. 326, 158 p.

Croneis, C. G., 1930, Geology of the Arkansas Paleozoic area,with special reference to oil and gas possibilities: ArkansasGeol. Survey Bull. 3, 457 p.

Drake, N. F., 1897, A geological reconnaissance of the coalfields of the Indian Territory: Am. Philos. Soc. Proc., v. 36,p. 326-419.

Fenneman, N. M., and Johnson, D. W., 1946, Physical divisionsof the United States: U.S. Geol. Survey map (repr. 1949).

Frezon, S. E., and Glick, E. E., 1959, Pre-Atoka rocks ofnorthern Arkansas: U.S. Geol. Survey Prof. Paper 314-H,p. 171-189.

Frezon, S. E., and Schultz, L. G., 1961, Possible bentonite bedsin the Atoka formation in Arkansas and Oklahoma, inShort papers in the geologic and hydrologic sciences: U.S.Geol. Survey Prof. Paper 424-C, p. C82-C84.

Haley, B. R., 1960, Coal resources of Arkansas: U.S. Geol.Survey Bull. 1072-P, p. 795-831.

1961, Geology of Paris quadrangle, Logan County, Arkansas: Arkansas Geol. Comm. Inf. Circ. 20-B, 40 p.

1966, Geology of the Barber quadrangle, Sebastian County and vicinity, Arkansas: Arkansas Geol. Comm. Inf. Cir. 20-C, 76 p.

1968, Geology of the Scranton and New Blaine quadrangles, Logan and Johnson Counties, Arkansas: U.S. Geol. Survey Prof. Paper 536-B, 10 p.

Haley, B. R., and Hendricks, T. A., 1968, Geology of the Green wood quandrangle, Arkansas-Oklahoma: U. S. Geol. Survey Prof. Paper 536-A, 15 p.

Hendricks, T. A., and Parks, Bryan, 1937, Geology and mineral resources of the western part of the Arkansas coal field: U.S. Geol. Survey Bull. 847-E, p. 189-224.

1950, Geology of the Fort Smith district, Arkansas: U.S. Geol. Survey Prof. Paper 221-E, p. 67-94 [1951].

Knechtel, M. M., 1949, Geology and coal and natural gas sources of northern Le Flore County, Oklahoma: Oklahoma Geol. Survey Bull. 68, 76 p.

Merewether, E. A., 1967, Geology of Knoxville quadrangle, Johnson and Pope Counties, Arkansas: Arkansas Geol. Comm. Inf. Circ. 20-E, 55 p.

Merewether, E. A., and Haley, B. R., 1961 Geology of the Delaware quadrangle, Logan County and vicinity, Ar kansas: Arkansas Geol. Comm. Inf. Circ. 20-A, 30 p.

1969, Geology of the Coal Hill, Hartman, and Clarksvillequadrangles, Johnson County and vicinity, Arkansas:U.S. Geol. Survey Prof. Paper 536-C, 27 p; also publishedas Arkansas Geol. Comm. Inf. Circ. 20-H.

Miser, H. D., 1954, Geologic map of Oklahoma: U.S. Geol.Survey.

Oakes M. C. 1953, Krebs and Cabaniss groups, of Pennsylvanianage, in Oklahoma: Am. Assoc. Petroleum Geologists Bull.,v. 37, no. 6, p. 1523-1526.

Shannon, C. W., and others, 1926, Coal in Oklahoma (revisedand edited by C. L. Cooper): Oklahoma Geol. Survey Bull.4, 110 p.

Sheldon, M. G. f compiler, 1954, Sample descriptions and corre lations for selected wells in northern Arkansas: ArkansasResources Devel. Comm., Div. Geology Inf. Circ. 17, 222 p.

Smith, C. D., 1914, Structure of the Fort Smith-Poteau gasfield, Arkansas and Oklahoma: U.S. Geol. Survey Bull.541-B, p. 23-33.

Snider, L. C., 1914, Geology of east-central Oklahoma withspecial reference to the occurrence of petroleum and naturalgas: Oklahoma Geol. Survey Bull. 17, 25 p.

Taff, J. A., 1905, Progress of coal work in Indian Territory: U.S,Geol. Survey Bull. 260-1, p. 382-401.

Taff, J. A., and Adams, G. L, 1900, Geology of the easternChoctaw coal field, Indian Territory: U.S. Geol. Survey21st Ann. Rept., pt. 2, p. 257-311.

Trumbull, J. V. A., 1957, Coal resources of Oklahoma: U.S.Geol. Survey Bull. 1042-J, p. 307-382.

Winslow, Arthur, 1888, A preliminary report on a portion ofthe coal regions of Arkansas: Arkansas Geol. Survey Ann.Rept. 1888, v. 3, 109 p.

TAB

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. D

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embe

rR

epor

ted

dept

h (f

t)

prod

ucti

on

(cu

ft p

er

day)

Rem

arks

(es

t., e

stim

ated

)

Ark

ansa

s

1 2 3 4 5 6

Step

hens

P

rodu

ctio

n C

o.

Ark

ansa

s W

est

er

n G

as C

o.

Step

hens

Inc

. ....

.....d

o.... -

Ark

ansa

s L

ouis

i

ana

Gas

Co.

an

d A

rkan

sas

Okl

ahom

a G

as

Co.

..

do

-.. -..

R. M

cKin

ney

H.

Jack

son

1..

J.S

. Sno

dgra

s

H.

L.

Eva

ns

1.

L.

B.

Cra

w-

ford

1.

150

ft S

W. o

f cen

ter,

sec

. 31

, T.

10 N

., R

. 28

W.

400

ft S

., 40

0 ft

E.

of

cent

er,

sec.

36,

T.

ION

., R

.29W

. 12

0 ft

S.,

270f

t E

. of

cen

te

r, s

ec. 6

, T.

9N.,

R.2

8W.

1,65

0 ft

. fro

m N

L, 7

5 ft

. fr

om W

L, s

ec. 8

, T.

9N.,

R.2

8W.

50ft

S.,

500

ft W

. of c

en

ter,

sec

. 19

, T.

9N.,

R.2

8W.

150

ft N

., 25

0 ft

E.

of c

en

ter,

sec

. 30.

T.

9N..

Bei

ng

drill

ed.

July

19

66

.

July

1964

May

19

64

Apr

il 1

953.

..

June

195

2...

444

1420

1380

804.

98 576

5,52

9

4,80

7

4,83

7

4,50

6

4,84

4

Pit

kin

Ls.

.....

Pit

kin

Ls-

-.

Can

e H

ill M

br.

of H

ale

Fm

.

d

o.-

-......

Pit

kin

Ls-

--

. A

tokaF

m.. ..

.

d

o........ .

.d

o.. ....

Hale

Fm

85 95 99

120

120 67 120 67 120

Pra

irie

G

rove

. P

rair

ie

Gro

ve.

Pra

irie

G

rove

.

Pra

irie

. 3,

539-

3,54

6

. 3,

351

. 3,

601-

3,60

9f4

,453

-4,4

65

1 \4

,491

-4,4

99

J 4,

677-

4,73

6

. 2,

266

-2, 2

864,

285

-4, 3

65

. 1,

781-

1,80

84.

516-

4.60

7

2,50

0,00

0.

....

Sho

w o

f gas.

..

2,82

0,00

0.

1,46

0,00

0.

4,5

50,0

00....-

6,9

08,0

00..-.

.8,

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5,8

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00......

2.30

0,00

0.

Fau

lt w

ith

an e

st. d

ispl

ace

m

ent

of 4

35 f

t cut

at

est.

dept

h of

2,0

00 f

t. F

ault

wit

h 63

0 ft

of d

is

plac

emen

t cu

t at

est

. de

pth

of 2

,500

ft.

Fau

lt w

ith

300

ft o

f dis

pl

acem

ent c

ut a

t est

. de

pth

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,800

ft.

Fau

lt w

ith

598

ft o

f dis

pl

acem

ent c

ut a

t de

pth

of 3

,975

ft.

Fau

lt w

ith

635

ft o

f dis

pl

acem

ent c

ut a

t de

pth

7 A

rkan

sas

Lou

isi-

L

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sey

l.

ana

Gas

Co.

8 A

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Wes

tern

H.

Jack

son

1. .

Gas

Co.

9 A

rkan

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rig

htS

...

Lou

isla

na G

as

Co.

10 .

....

do

....

....

....

J. P

orte

r I.

...

11

Ark

ansa

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este

rn G

. Vin

sant

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G

as C

o.

12

Ark

ansa

s T

om a

ndL

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iana

Gas

F

rank

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ande

r 1.

13

Ark

ansa

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este

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. Ale

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er

Gas

Co.

1.

R.2

8W.

475

ft f

rom

NL

, 375

ft f

rom

W

L,

SEJ£

, sec

. 31,

T.

9N.,

R.

28W

.

400

ft S

., 40

0 ft

. E o

f cen

te

r se

c. 1

, T.

9N.,

R.2

9 W

.50

0 ft

N.

of c

ente

r se

c. 5

, T

. 9N

., R

.29W

.

550

ft N

., 75

0 ft

W. o

f cen

te

r se

c. 7

, T.

9N.,

R.

29W

.

200

ft S

., 20

0 ft

W. o

f cen

te

r se

c. 1

0, T

. 9N

., R

.29

W,

800

ft f

rom

SL

, 2,5

00 ft

fro

m

EL

, se

c. 1

3, T

. 9N

., R

. 29

W.

1,00

0 ft

S.,

250

ft E

. of

ce

nter

sec

. 16

, T.

9N.,

R.2

9 W

.

Sep

t. 19

59. -

77

8

June

1965

375

Sep

t. 19

63-.

. 38

4

July

196

5....

37

8

Dec

. 19

61...

. 38

0

Apr

. 1963

i 380

Sep

t. 19

65...

38

9

Gro

ve.

5,6

90 -

.do--

--.-

...

Ato

kaF

m..

.--

67 ......

2,46

0-2,

468

Sh

ow

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as..

.98

4,29

6-4,

323

1,40

0,00

0.

Hale

Fm

----

- 12

0 P

rair

ie

5,39

3-5,

417

Sho

wof

gas.

Gro

ve.

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9 -.-

do

..

....

Ato

ka F

m..

...

98

-...

.. .

3,76

6-3,

782

40,0

00,0

00

6,95

7 E

ver

tonF

m... ..

do..

.

...

93 ... .

4,57

1-4,

588

850,

000.

5,90

3 S

t. C

lair

Ls.-

- d

o.......

93

.. ..

. .

3,97

0-3,

976

Show

of g

as...

Hale

Fm

...

116

Pra

irie

5,

244-

5,26

0 5,

900,

000.

G

rove

.

6,03

7 A

tokaF

m

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m..

.-.

67

............

3,27

5Sh

ow o

f gas

...

of 8

00 f

t. R

ock

sam

ples

ex

amin

ed a

nd lo

gged

by

S. E

. Fr

ezon

.

Fau

lt w

ith

572

ft o

f dis

pl

acem

ent c

ut a

t es

t. de

pth

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,500

ft.

Fau

lt w

ith

122

ft o

f dis

pl

acem

ent c

ut a

t de

pth

of 5

,347

ft.

Fau

lts

wit

h 54

0 ft

and

550

ft

of d

ispl

acem

ent c

ut a

t de

pths

of

1,17

0 ft

and

2,

580

ft, r

espe

ctiv

ely.

5,15

1 C

ane

Hil

l Mbr

. .....d

o.....

of H

ale

Fm

.H

ale

Fm

..

5,53

5.

Pit

kin

Ls-

- .. A

tokaF

m.

98 .

3,95

2-3,

970

)onm

nnn

4> 0

16_4

> 02

3 J 2

,000

,000

.99 12

04,

952-

4,99

3 4,

200,

000.

14 .

....

do

....

....

....

A. M

ors

el..

.. 7

30 f

t fro

m N

L,

390

ft f

rom

M

ar.

1964

....

380

WL

, NW

J^S

EJi

sec

. 17

, T

. 9N

., R

. 29

W.

15

Ark

ansa

s C

.Wri

ght

Lou

isia

na G

as

and

F.A

. C

o.

Hum

phre

ys

Uni

t 1.

16

..do.... ..

...

C.H

iatt

l...

.

17 ..do ........

F.H

old

enl.

..

18 .

....

do

..

..--

- L

.D.M

orri

s 1.

500

ft f

rom

SL

, 200

ft f

rom

W

L,

sec.

19,

T.9

N.,

R.

29 W

.

300

ft f

rom

SL

, 20

0 ft

fro

m

WL

, sec

. 22,

T.

9N.,

R.&

W.

267

ft N

.. 55

7 ft

E.

ofce

nter

sec

. 23

, T. 9

N.,

R.2

9W.

330

ft S

., 33

0 ft

E.

ofce

nter

sec

. 24,

T. 9

N.,

R.

29W

.

Oct

. 19

62...

. 38

0

Oct

. 19

63...

. 14

40

Nov

. I9

60-.

. 40

2

Feb

. 19

52

776

7,32

0 S

t. G

lair

Ls.

....

....

. do

..........

Blo

yd (

?) F

m.

7,50

1 F

ayet

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lle

Sh

Ato

kaF

m.-

.-

Pra

irie

Gro

ve.

93 .....

4,28

8-4,

296

1,50

0,00

0,.

99 ....-.-

4,63

8-4,

642

Sho

w o

ff

28

. ...

1,88

1-1,

889

2,4

80

,00

0

..93

___ _

_

5,42

3 Sh

ow o

f gas

.99

______

5,98

7 Sh

ow o

f gas

._ . .

6,73

1-6,

743

1,94

0,00

0.93

.. . .

5,67

55,7

00

275,0

00......

98

...-

.

6,13

6-6,

160

45,0

00,0

00.

5,22

9 S

t. P

eter

Ss-

----

--.d

o.

58 ..

....

.

1,50

793

............

3,57

7-3,

582

5,34

0 C

ane

Hil

l Mbr

. .....d

o.

of H

ale

Fm

.

5,00

8 P

ente

rs C

her

t...

....

.do

..

Sho

w o

f gas

...

900,

000

(shu

t-

in).

9,

500,

000.

98 -... .

3,94

2-3,

959

93 .

....

3,

787-

3,80

9 65

0,00

098

..

._..

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4,

142-

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5)0

oof, ^

99

............

4,25

1-4,

256

j2'0

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00-

67? -.. --

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00

19 .

... .

do....-.

. .

G.H

amm

et

al 1

.

See

foot

note

s at

end

of t

able

, p.

A41

.

600

ft fr

om N

L, 5

0 ft

from

F

eb.

19

54

_

WL

, SE

J^, s

ec. 2

5, T

. 9N

., R

. 29

W.

4,67

0 P

rair

ie G

rove

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Mbr

. of

Hal

e H

ale

(?)

Fm

..

Fm

.

99 .

3,58

3-3,

589

1,80

0,00

0..

116?

P

rair

ie

4,51

1-4,

670

9,00

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Gro

ve.

Fau

lts

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h 83

6 ft

and

441

ft

of d

ispl

acem

ent c

ut a

t de

pths

of 4

,115

ft

and

4,72

0 ft

, re

spec

tivel

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ault

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h 51

2 ft

of d

is

plac

emen

t cut

at

dept

h of

6,

660

ft.

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h 42

5 ft

and

524

ft

of d

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acem

ent c

ut a

t de

pths

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50 f

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d 4,

856

ft r

espe

ctiv

ely.

Fau

lt w

ith

656

ft o

f dis

pl

acem

ent c

ut a

t de

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4,50

5 ft

. R

ock

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ples

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amin

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nd lo

gged

by

E.

E.

Glic

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h 64

5 ft

of d

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plac

emen

t cut

at

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h of

77

4 ft

.CO

TAB

LE 3

. D

escr

ipti

ons

of s

elec

ted

wel

ls d

rille

d in

Van

Bur

en a

nd L

avac

a qu

adra

ngle

s, A

rkan

sas

and

Okl

ahom

a, a

s of

Sep

tem

ber

80,

19

66

Con

tinu

ed

Wel

l N

o.

(pis

. C

ompa

ny n

ame

15;

fig.

11

)

Lea

se n

ame

Loc

atio

n (E

L,

east

lin

e;

NL

, no

rth

line;

S

L,

sout

h lin

e; W

L, w

est

line)

Dat

e (C

ompl

etio

n da

te,

unle

ss

othe

rwis

e no

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Rep

orte

d -

grou

nd

elev

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Bot

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Dep

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Str

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unit

For

mat

ion

Pro

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one

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e N

o.

Rep

orte

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prod

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)

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. ..

..

22 do

23 do..

24 .

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..

26 .

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.. ..

..

26

Sten

hens

Inv

est-

S.A

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ente

r SW

J£SW

KN

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ke

rsle

y 1.

se

c. 2

6, T

. 9N

., 29

W.

N.

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nnon

1.

300

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, 10

0 ft

fr

om E

L,

SWM

, sec

. 27,

T

. 9N

., B

. 29

W.

F. M

arti

n 1. 1

,980

ft N

.f 1

,980

ft

W.

of

SE

cor

. sec

. 29,

T.

9N.,

R.2

9W.

C. W

righ

t 1.

- 6

00 ft

N.,

150

ft E

. of

ce

nter

sec

. 30,

T. 9

N.,

R.

29W

.

Arb

uckl

e 60

0 ft

S.,

100

ft E

. of

Hei

rs 1

. ce

nter

sec

. 31,

T.

9N.,

R.

29 W

.

D.M

..

430

ft N

., an

d 33

0 ft

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f E

uban

ks 1

. ce

nter

, se

c. 3

2, T

. 9

N.,

R.

29 W

. A

. J.

1.15

0 ft

fro

m S

L. 3

30 f

t

Oct

. 1952

Oct

. 1952

Oct

. 1964

Sept

. 1959

May

l964....

Mar

. 196

2...

Feb

. 19

57-.

.

2736

.88

772.

5

400

380

466

1460

1470

4,89

5

4,79

0

4,59

2

5,73

5

5,05

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0

4.89

5

Pit

kin

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e H

ill M

br.

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.

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kin

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.

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e H

ill M

br.

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.

Pra

irie

Gro

ve

Mbr

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m.

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kin

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..

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yd F

m. .

...

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e F

in _

__

.

Ato

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99

100

101

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.

. 98

.

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738

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174,

000,

000.

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irie

(

4, 5

94-4

, 630

) ,

Anft n

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ve.

{ i 6

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. .

. ,

3,

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340

4, 0

32-4

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1 ............

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00

1,75

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. 3,3

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00

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00

Fau

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ith

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ft o

f dis

pl

acem

ent

cut

at d

epth

of

2,66

8 ft

. R

ock

sam

ples

ex

amin

ed a

nd lo

gged

by

S. E

. F

rezo

n.

Fau

lt w

ith

598

ft o

f dis

pl

acem

ent

cut

at e

st.

dept

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500

ft.

Fau

lts

wit

h 31

0 ft

and

747

ft

of d

ispl

acem

ent

cut a

t de

pths

of

1,28

7 ft

and

2,

896

ft. r

espe

ctiv

ely.

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ault

s w

ith

1,20

0 ft

and

120

ft

of d

ispl

acem

ent c

ut a

t de

pths

of 3

,668

ft a

nd

4,41

7 ft

, res

pect

ivel

y. R

ock

sam

ples

exa

min

ed a

nd

logg

ed b

y B

. R

. H

aley

. F

ault

wit

h 40

5 ft

of d

is

plac

emen

t cu

t at

dept

h of

970

ft.

27 28

Ark

ansa

s L

ouis

ia

na G

as C

o.

do.

W

. T. M

c

Don

ald

eta

ll.

29

-.d

o..

-.

S. S

tubb

le-

fiel

d 1.

from

WL,

NE

H s

ec. 3

3,T

. 9N

., R

. 29

W.

R. R

ebsa

men

1.

615

ft f

rom

NL

, 75

ft f

rom

M

ay 1

959.

...E

L,

SWK

, sec

. 34,

T.

9N.,

R. 2

9W.

1,10

0 ft

. N.,

220

ft E

. of

A

pr.

1960

. ..

cent

er s

ec. 3

5, T

. 9N

.,R

. 29

W.

50 f

t fr

om N

L,

100

ft f

rom

A

ug.

1955_

WL

, S

EH

, sec

. 36,

T.

9N.,

R. 2

9W.

30

J. M

. Hub

er

J.B

.Kin

g

750

ft f

rom

SL

, 2,

365

ft

May

196

6-

Cor

p.

B-l

. fr

om W

L, s

ec. 1

, T.

9N.,

R.3

0W.

31

Ark

ansa

s L

ouis

- W

. R

. 1,

000

ft N

., 50

0 ft

W. o

f ia

na G

as C

o.

Ale

xand

er 2

ce

nter

sec

. 8, T

. 9N

-, R

. SO

W.

32

Am

bass

ador

F

. E

. Sh

eare

r 99

0 ft

N.,

2,31

0 ft

E.

of

Jan.

196

2.

Oil

Cor

p.

Uni

t 1.

SW

. co

r. se

c. 9

, T.

9N.,

R.

SOW

.

33

Gul

f O

il C

orp

....

H.

A.

Ric

h 1.

. 90

0 ft

fro

m N

L,

150

ft

June

196

5..

fro

mW

L.N

EV

isec

.il,

T

. 9

N.,

R. S

OW.

34 .

.--d

o..

....

.

McV

eyl.

.....

920f

t S.

of N

W.

cor.

NE

^ Ja

n. 1

965.

..se

c. 1

3, T

. 9N

., R

. SOW

.

35 do.. . . T

hick

sten

1..

. 75

0 ft

fro

m N

L,

200

ft

Dec

. 19

63..

from

EL

, N

WK

sec

. 14

, T

. 9N

., R

. SOW

.

36 -do.. . D

. Byars

l .

707

ft f

rom

NL

, 1,

933

ft

Nov

. 19

64.

from

EL

, sec

. 15

, T.

9N.,

R.3

0W.

819

530

777

386

5,47

5 ..... d

o. ......... ..d

o..

.

. 67

............

2,43

6-2,

472

3,1

25,0

00

5,08

0 C

ane

Hil

l Mbr

. . do.-

,

of H

ale

Fm

.

5,36

5 ..

...d

o

....

. ..

.do

...

...

67 .

...........

2,01

4-2,

057

1,30

0,00

0.3,

781-

3,79

3)

7SO

ooo

a

Qfi

JUS

Q

«9!f

'O

U,U

UU

.

Hal

eFm

...

6,51

7 P

ente

rs C

hert

A

toka

Fm

.

Boo

ne F

m.

100

.

3,96

3-3,

982)

18 .

.. ....

651

55 .

...........

1,52

667

...

....

....

. 2,

353-

2,36

412

0P

rair

ieG

rove

. 58

...........-

Slig

ht s

how

of

gas.

Show

of g

as.

1,80

0,00

0.

99

5,27

8-5,

320

2,10

0,00

0.

3,15

5 Sh

ow o

f gas_

Fau

lt w

ith

540

ft o

f dis

-5,

526-

5,52

8 58

0,00

0.

plac

emen

t cut

at

dept

h5,

619-

5,64

0 Sh

ow o

f gas

. of

6,0

96 f

t.6,

378-

5,39

0 Sh

ow o

f gas

.

397

6,26

6 P

rair

ie G

rove

A

tokaF

m.

Mbr

. of

Hal

e

391

7,00

0 --.d

o.......... .d

o ....

378

5,68

5 P

itki

n L

s.. ... ..

do..

....

Hal

e F

m

5,54

0 B

loyd

Fm

...... A

toka

Fm

.....

385

6,00

0 C

ane

Hil

l Mbr

.....d

o....

of H

ale

Fm

.

74

.

4,24

6-4,

256

Sho

wof

gas.

.85

... - -

5,03

7-5,

045

Sho

wof

gas.

93 .

....

....

...

5,27

5-5,

316

698,

877.

18 .-

2,12

6-2,

145

11,8

80,0

00.

98 .

....

....

...

5,82

6-5,

851

5,27

5,00

0.

58 .

....

....

...

2,49

0-2,

510

4,80

6.00

0...

116

Pra

irie

5,

601-

5,62

2 4,

750,

000.

G

rove

.

58

....

....

....

2,

574-

2,64

1 5,

000,

000-

100

....

....

....

5,

056-

5,07

8 13

,000

,000

.

58

....._

_.-

3,

387

Sho

wof

gas.

93

....

._..

..

4,65

2-4,

680

1,60

0,00

0.99

....

5,01

0-5,

022

3,20

0,00

0.10

0 ..

....

....

..

5,12

6-8,

143

3,92

0,00

0.

Fau

lts

wit

h 19

0 ft

and

88

ft

of d

ispl

acem

ent

cut

at

dept

hs o

f 5,7

45 f

t an

d 5,

912

ft, r

espe

ctiv

ely.

W

ell a

band

oned

as

dry

in

July

196

4.

Fau

lts

wit

h 61

5 ft

and

872

ft

of d

ispl

acem

ent

cut a

t de

pths

of

755

ft a

nd 4

,830

ft

, res

pect

ivel

y..

Fau

lts

wit

h 68

0 ft

and

664

ft

of

disp

lace

men

t cu

t at

de

pths

of

2,30

8 ft

and

4,

930

ft, r

espe

ctiv

ely.

. F

ault

s w

ith

770

ft a

nd 6

39

ft o

f dis

plac

emen

t cu

t at

de

pths

of 3

,755

ft

and

4,64

4 ft

, res

pect

ivel

y.

§

37

Am

bass

ador

Oil

Kre

uger

1..

...

633

ft f

rom

SL

, 1,

975f

t Ju

ne 1

961-

--

395

Cor

o fr

om W

L> s

60-1

7- T

-p

9N.,

R. 3

0W.

38

Ana

dark

o Pr

o-

Ham

er U

nit

1. 1

,000

ft S

E. o

f NW

. co

r. S

ept.

1965

...

duct

ion

Co.

N

E^ s

ec. 2

1, T

. 9N

., R

. SOW

.39

St

ephe

ns P

ro-

M. A

. H

anna

80

0 ft

fro

m S

L, 4

00 f

t fro

m

Apr

. 19

60...

du

ctio

n C

o.

1.

EL

, |W

H *

>c. 2

1, T

.

40

Gul

f O

il C

orp

. D

enm

an 1

.... 7

00 f

t fr

om N

L,

1,94

0 ft

O

ct. 1963

from

EL

, se

c. 2

2, T

. 9N

., R

.30W

.

41

do

C. M

eodo

rs 1

-800 f

t fr

om N

L, 2

,340

ft

July

, 19

63...

.. ... -

fr

om W

L, s

ec. 2

3, T

.9N

., R

. SOW

.C

. Wri

ght 3

...

400

ft N

. of

cen

ter

sec.

25.

Ju

ly 1

962.

T.

9N.,

R.

SOW

.

5,91

8 B

oo

neF

m..

.

do

....

Blo

yd F

m.

582,

393-

2,44

5 Sh

ow o

f gas

.4,

978-

4,98

8 60

0,00

0.5,

629-

5,63

2 Sh

ow o

f gas

.

42

Ark

ansa

s L

ouis

i

ana

Oas

Co.

43

Step

hens

Pro

du

ctio

n C

o.B

. Wof

lord

1. .

1,0

00 f

t fr

om N

L,

1,10

0 ft

fr

om W

L, s

ec. 2

6, T

. 9N

., R

. SOW

.

May

19

63

44

do

....

P

. L

aste

rl..

.. 6

00ft

from

NL

, 60

0ft

Au

gl9

58

-fr

om E

L,

NW

^ se

c. 2

7,

T.

9N.,

R. S

OW.

45

do

. ...

Eva

and

Tom

70

0 ft

fro

m S

L,

150

ft f

rom

M

ay 1

961.

. B

lake

lyl.

E

L,

SW

^, s

ec. 2

7, T

. 9N

., R

. SO

W.

46

do

. .

. L

. S.

Ste

war

d 1,

770

ft N

., 20

0 ft

W. o

f M

ar. 1

965.

1.

ce

nter

, se

c. 2

9, T

. 9N

., R

. SOW

.

47

do

L.

Hat

chet

t 1.

300

ft f

rom

NL

, 300

ft f

rom

Dec

. 19

61.

WL

, N

E^,

sec.

31,

T.

9N.,

R. S

OW.

150

ft f

rom

NL

, 15

0 ft

fro

m J

une

1962

...E

L,

NW

^ se

c. 3

2, T

.9N

., R

. SOW

. 50

0 ft

fro

m N

L,

100

ft f

rom

Aug

. 195

7. ..

WL

, NE

^,

sec.

33,

T.

9N.,

R.

SOW

.

830

ft f

rom

SL

, 540

ft f

rom

Se

pt.

1961

...W

L, S

E^,

sec.

33,

T.

9N.,

R. S

OW.

950

ft f

rom

SL

, 300

ft

from

N

ov. 1961

WL

, S

EJi

,sec

. 34,

T.

9N.,

R.

SOW

. 15

0 ft

fro

m N

L, 9

00 f

t fro

m S

ept.

1959

. -E

L,

NW

Ji,

sec.

35,

T.

9N.,

R.

SOW

.

63

..do..

- J

. D

. O

ooch

2.

800f

t fr

om S

L,

600

ft f

rom

Jul

y 1

96

6.

EL

, S

W^.

sec.

35,

T.

9N.,

R. S

OW.

2,60

0 ft

fro

m N

L,

2,20

0 ft

A

ug. 1

960.

..

from

EL

, sec

. 36,

T.

9N.,

R. S

OW.

48 .

....do._

.......

D.

L.

Fon

-ta

inel

.

49

do-____ M

. Tur

ner

et

all

.

60 _

_d

o..

__

__

J.

F.

Ale

x

ande

r 1

61 .

....

do

__

....

.. J

. D

. G

ooch

l.

62 .

. do..

......

E.

Gre

go

ry..

.

64

Ark

ansa

s L

ouis

- C

. Wri

ght 2

...

iana

Gas

Co.

56 .

....do_.... . F

. N

.Pre

s

ton

1.38

0 ft

fro

m N

L, 3

30 ft

fro

m N

ov.

1960

...

EL

, S

E^,

sec.

10,

T.

9N.,

R. 3

1W.

56

Skel

ly O

il C

o_

. S.

Gre

ig I

.....

600

ft S

W. o

f cen

ter,

sec

.13,

Bei

ngT

. 9N

., R

. 31W

. co

mpl

eted

.

370

410

389

388

380

1380

418

389

>440

1440

»431

456

1380

1380

383

1440

1380 56

0

492

6,06

1 F

ernv

ale L

s.

.d

o..

.

7,02

0 P

itki

n L

s...

... .

.. ..

.do..

....

. ..

6,48

6 A

toka

Fm

._ ..

.. - d

o..

. ..

.

6,37

8 P

rair

ie G

rove

..

... d

o... ..

Mbr

of

Hal

e F

m.

5,99

7 St

. C

lair

Ls.

do. ~

5,63

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itkin

Ls

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toka

Fm

..

6,08

6 St

. C

lair

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ka F

m.-

-

6, 1

61

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ir (

?) L

s- B

oone

(?)

Fm

Che

rt.

5,47

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itkin

Ls.

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. A

tok

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loyd

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.

5,92

3 F

ayet

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lle

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....

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.

of H

ale

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d

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l (?

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.

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ale

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kin

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....

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OA

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Show

of g

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102

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0,00

0.

2,40

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...

3,42

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.

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0.

2,37

1 an

d S

how

of g

as. .

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of g

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369-

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07

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600

9,80

0,00

0.

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450,0

00..

Fau

lts

wit

h 34

8 ft

and

590

ft

of d

ispl

acem

ent

cut

at

dept

hs o

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t an

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683

ft, r

espe

ctiv

ely.

Roc

k sa

mpl

es f

rom

4,8

30 to

4,

910

ft a

nd f

rom

5,4

00 to

5,91

0 ft

exa

min

ed a

nd l

ogge

d by

B.

R.

Hal

ey.

Fau

lt w

ith

420

ft o

f dis

pl

acem

ent

cut

at d

epth

of

6,63

0ft.

Fau

lts

wit

h 20

0 ft

and

543

ft

of d

ispl

acem

ent

at d

epth

s of

3,9

92 f

t an

d 4,

603

ft,

resp

ectiv

ely.

Fau

lt w

ith

530

ft o

f dis

pl

acem

ent

cut

at d

epth

of

4,59

5ft.

Fau

lts

wit

h 26

0 ft

, 85

ft,

66

ft, a

nd 8

5 ft

of d

ispl

ace

m

ent

cut

at d

epth

s of

2,

545f

t, 2,

813

ft, 3

,428

ft,

and

4,04

6 ft

, res

pect

ivel

y.

. ..

Fau

lts

wit

h 29

6 ft

and

300

ft

of d

ispl

acem

ent

cut

at

dept

hs o

f 2,9

22 f

t an

d 4,

108

ft, r

espe

ctiv

ely.

Fau

lt w

ith

200

ft o

f dis

pl

acem

ent

cut

at d

epth

of

1,50

8 ft

.

Fau

lts

wit

h 75

ft

and

370

ft o

f dis

plac

emen

t cu

t at

de

pths

of 1

,467

ft

and

5,30

6 ft

, res

pect

ivel

y.F

ault

s w

ith

140

ft, 3

20 f

t,

and

67 f

t of

dis

plac

emen

t cu

t at

dep

ths

of 2

,815

ft,

4,18

7 ft

. and

4,4

60 f

t, re

spec

tivel

y.E

lect

rica

l log

not

ava

ilab

le

to a

utho

rs.

Fau

lts

wit

h 55

ft

and

50 ft

of

dis

plac

emen

t cu

t at

dept

hs o

f 4,4

75 f

t an

d 4,

314

ft r

espe

ctiv

ely.

Fau

lt w

ith

140

ft o

f dis

pl

acem

ent

cut

at d

epth

of

1,6

42 f

t.

Fau

lts

wit

h 75

ft

and

90 f

t of

dis

plac

emen

t cu

t at

de

pths

of 2

,205

ft

and

5,15

4 ft

. res

pect

ivel

y.E

lect

rica

l log

not

ava

ilab

le

to a

utho

rs.

Fau

lts

wit

h 46

8 ft

and

40

ft

of d

ispl

acem

ent

cut

at

dept

hs o

f 3,1

52 f

t an

d 3,

408

ft, r

espe

ctiv

ely.

Roc

k sa

mpl

es e

xam

ined

an

d lo

gged

by

B.

R.

Hal

ey.

See

foot

note

s at

end

of t

able

, p.

A41

.O

i

TAB

LE 3

. D

escr

ipti

ons

of s

elec

ted

wel

ls d

rille

d in

Van

Bur

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.

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sec

. 2,

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8N.,

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29W

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R.

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NE

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., R

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W.

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ft N

., 50

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fce

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sec

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W.

466

ft N

., 46

6 ft

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fce

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sec

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W.

500

ft N

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ft W

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, T. 8

N.,

R.

29W

. 74

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sec

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, T. 8

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R.

29W

.

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1...

422

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., R

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330

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., 20

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1965

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., R

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.

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ter,

sec

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, T

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., R

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. 196

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sec

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R.2

9W.

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.. ..

do...........

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., 88

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1966...

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1966

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196

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Frez

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1966

Oct

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Dec

. 19

56...

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61--

.

May

19

59

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. 19

68. .

.

Aug

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Apr

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t. 19

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Pit

kin

Ls-

- -.

-..

do

...

...

Pit

kin

(?)L

s.--

St.

Cla

ir L

s.

Ato

ka F

m

.... . d

o...... ..

. B

loyd

Fm

H

ale F

m

Ato

ka F

m

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ka F

m.

Blo

yd F

m.-

Ato

ka F

m.-

---

Hal

e F

m .

Ato

ka F

m.-

.-

Hal

e F

m

. .d

o..

....

....

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ka F

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Hal

e F

m -

.--

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ka(?

) F

m-_

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ka F

m.-

-.

. 10

1?

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120

. 98

10

0

. 10

0

. 28

. 12

0

. 98 10

011

6 12

011

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0

. 10

0.

120

101? ?

. 67

Pra

irie

G

rove

.

Pra

irie

Gro

ve.

IPra

irie

/

Gro

ve.

IPra

irie

/

Gro

ve.

Pra

irie

Gro

ve.

.

Dry

... .

...-

-.-

Fau

lt w

ith

510

ft o

f dis

pl

acem

ent

cut at

dep

th

of 4

,955

ft.

4,77

3 S

how

ofga

s E

lect

rica

l log

was

not

run

.

. 4,

625-

4,63

2 500,0

00.

5, 3

54-5

, 370

Sh

ow o

f gas

. 5,

676

-5, 6

96

Show

of g

as.

. 4,

481-

4,50

2 2,8

50,0

00..

4,70

1-4,

714

680,

000.

. D

ry E

lect

rica

l log

was

not

run

.

. 4,

484-

4,50

6 3,5

00,0

00..

. 5,

034-

5,03

6 4,

750,

000.

. 1,

307-

1,32

0 49

6,00

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5,44

0 5,

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. 4,

295-

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4130

5000

04,

499

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7 /

* '

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,-nn

no

5,36

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409

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, 040

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. 5,

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,000

. ..

6,25

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314

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0.

. 5,

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5,20

8 1,

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....

5,72

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786

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. 3,

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...

...

Fau

lt w

ith

205

ft o

f dis

pl

acem

ent

cut a

t an

est

.de

pth

of 2

,300

ft.

Fau

ft w

ith

236

ft o

f dis

pl

acem

ent

cut

at a

n es

t.de

pth

of 6

25 f

t.

Fau

lt w

ith

332

ft o

f dis

pl

acem

ent

cut a

t de

pth

of 5

,253

ft.

...

Fau

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ith

50 f

t of

dis

pl

acem

ent

cut

at a

n es

t.de

pth

of 2

,100

ft.

.. E

lect

rica

l log

not

ava

ilab

leto

aut

hors

.

...

Fau

lts

wit

h 50

ft

and

250

ft

<

W 3 M

V h^ S g 2 J> £> d > o » KJ o S CO > a

7,63

5 ?

Pent

ers(

?)

Che

rt.

6,59

0-6,

597

1,10

0,00

0.

6,14

3 P

itkin

Ls-

-...

. H

ale F

m.

120

Pra

irie

5,

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5,92

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ve.

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--

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.

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23

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0.

6,35

0 P

itk

inL

s..d

o...

55 ....- _

_

2,10

8-2,

129

Sho

wof

gas.

58 .

2,40

0-2,

460

7,50

0,00

0.10

1 ..... .

5,13

0-5,

140

1,27

0,00

0.

.do

....

28?

....

....

....

2,

420

Sho

wof

gas.

67? .. ..

2,99

9-3,

011

5,80

0,00

0.

Hal

eFm

.?. ..

? ..

_ _

6,17

0-6,

178

5,20

0,00

0.

. . _

......... D

ry.........

7,26

6 ?

7,38

1 ?

8,33

1 E

vert

on F

m. - - _

_ . D

ry.. .

4,07

8 A

tokaF

m-.

. A

tok

aF

m--

67

? .....

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9-3,

791

3,10

0,00

0-

of d

ispl

acem

ent c

ut a

t de

pths

of 2

,980

ft

and

6,42

0 ft

. R

ock

sam

ples

fr

om 3

,410

to 6

,850

It

exam

ined

and

logg

ed b

y B

. R

. H

aley

Ele

ctri

cal

log

not

avai

labl

e to

aut

hors

.

Fau

lt w

ith

595

ft o

f dis

pl

acem

ent

cut

at d

epth

of

5,0

65 f

t.F

ault

s w

ith

91 f

t, 54

1 ft

, an

d 12

2 ft

of d

ispl

ace

m

ent

cut

at d

epth

s of

4,

404f

t, 4,

950

ft, a

nd

5,19

0 ft

, res

pect

ivel

y.F

ault

s w

ith

200

ft,

161

ft, 2

79

ft, a

nd 5

5 ft

of d

ispl

acem

ent

cut a

t de

pths

of 5

05 ft

, 209

0 ft

, 3,

155,

and

4,0

40 f

t,

resp

ecti

vely

.

Ele

ctri

cal l

og n

ot a

vail

able

to

aut

hors

.

. E

lect

rica

l log

not

ava

ilab

le to

au

thor

s.

. F

ault

wit

h 12

5 ft

of d

ispl

ace

m

ent c

ut a

t dep

th o

f 5,1

09

ft.

. E

lect

rica

l lo

g no

t av

aila

ble

to a

utho

rs.

TAB

LE 3

. D

escr

ipti

ons

of s

elec

ted

wel

ls d

rill

ed i

n V

an B

uren

and

Lav

aca

quad

rang

les,

Ark

ansa

s an

d O

klah

oma,

as

of S

epte

mbe

r 30

, 1966 C

onti

nued

Wel

l N

o.

(pis

. C

ompa

ny n

ame

1, 5

; fi

g.

11)

Lea

se n

ame

Loc

atio

n (E

L, e

ast

line;

N

L,

nort

h lin

e;

SL

, so

uth

line;

WL

, wes

t lin

e)

Dat

e (C

ompl

etio

n R

epor

ted

date

, gr

ound

un

less

el

evat

ion

othe

rwis

e (f

t)

note

d)

Bot

tom

of w

ell

Dep

th

(ft)

Str

atig

raph

ic

unit

Pro

duci

ng z

one

For

mat

ion

Zon

e M

embe

r N

o.

Rep

orte

d pr

oduc

tion

de

pth

(cu

ft p

er

(ft)

da

y)

Rem

arks

(es

t., e

stim

ated

)

Ark

ansa

s C

ontin

ued

94

J. M

. Hub

er

Cor

p.

95 .

....do...........

96 .

....do.-

-....-

-..

97

..do...........

98

Stev

e G

ose-

Oil

and

Gas

Pro

du

cer.

99

S

teph

ens

Pro

du

ctio

n C

o.

100 do... --

101

Indu

stri

al O

il an

d G

as C

o.

102

R.T

. Sm

ith.... ..

103

Ste

phen

s P

ro

duct

ion

Co.

104

.--.

do

...-

--..

..

105 do. .

106

... .

.do

.. . ........

107

.. ..

.do... .

....

...

108

Gul

f O

il C

orp

....

109

....

.do

.. .........

110

G.

C. P

arker

... .

111 d

o .....

112

G.

C.

Par

ker

and

J. A

. C

hapm

an.

113

G.

C. P

arker

....

114

J.M

. H

uber

C

orp.

McF

err

inl

_

Nix

on 1

. -__

__.

Hia

ttl

-

Lam

bert

1 .

. . .

E. J

. Ing

ram

1

W.

Goo

ch

Uni

t 1.

G.W

.Wil

lia

ms

3.

Rob

bins

-Fin

e 1.

F.W

rightl

...

U.

R.R

ay 1

-.

C. C

ross

......

I. I

ngra

ham

1.

J. S

. Dur

ham

1.

R.

S. P

arks

1.

Dau

gher

ty 1

..

W. W

illia

ms

1..

Mye

rs A

-l..

..

Mye

rs 1

.......

Tib

bett

sl....

1 ,05

0 ft N

. of c

ente

r sec

. 29,

T

. 8N

., R

. 29

W.

659

ft S

., 67

5 ft

E. o

f cen

ter,

se

c.32

,T.8

N.,R

.29W

. 3,

050

ft fr

om N

L, 1

,930

ft

from

WL

,sec

.33,

T.8

N.,

R.

29W

.

442

ft S

., 91

7 ft

W. o

f cen

ter,

se

c.34

,T.8

N.,R

.28W

. 66

0ftN

.,673

ftE

.of

cent

er, s

ec. 3

6, T

. 8N

., R

. 29W

. 90

0 ft

from

SL

, 150

ft fr

om

EL

,SW

}ise

c.2,

T.8

N.,

SOW

. 1,

300

ft f

rom

SL

, 250

ft

from

WL

,SE

}ise

c.3,

T

. 8N

., R

. SOW

.

!,20

0ftS

.,130

0ftW

.NE

. co

r., N

WJi

sec

. 6,

T. 8

N.,

R. S

OW.

950

ft fr

om S

L, 2

,789

ft fr

om

WL

, sec

. 9, T

. 8N

, R

. SO

W.

500

ft N

., 15

0 ft

W. o

f cen

te

r, s

ec. 1

3, T

.8N

., R

.30

W.

2,97

5 ft

fro

m S

L,

2,79

0 ft

fr

om

WL

, se

c.

15,

T.8

N., R

.30W

. 2,

407

ft f

rom

SL

, 2,

746

ft

from

EL

, sec

. 21

, T.

8N.,

R.

SOW

. 80

0 ft

N.,

150

ft W

. of

cent

er s

ec. 2

4, T

. 8N

., R

. SOW

. 85

0 ft

N.,

250

ft W

. of

cent

er s

ec.

25, T

. 8N

., R

. SOW

. 40

0ft.

N.,

400

ft E

. of

ce

nter

sec

. 2,

T.

8N.,

R.

31 W

. 80

0 ft

fro

m S

L, 2

00 f

t fr

om

EL

, N

W}£

sec

. 3, T

. 8N

., R

. 31

W.

660

ft S

., 50

0 ft

W. o

f cen

te

r se

c. 4

. T.

8N.,

R.

31W

. C

ente

r N

W^N

WJi

SE

Ji

sec.

8, T

. 8N

., R

. 31W

.

2,38

0 ft

fro

m N

L,

2,51

0 ft

fr

om W

L, s

ec.

9, T

. 8N

., R

.31W

. 90

0 ft

N.,

120

ft W

. of c

en-

sec.

11,

T.

8N.,

R.

31W

.

Cen

ter

SE

JiN

WJi

sec

. 16.

T

. 8N

., R

. 31W

.

Mar

. 196

6. .

.

Aug

. 19

65...

Oct

. 19

62...

.

May

196

5....

Sep

t. 19

65...

Feb

. 19

65...

Feb

. 19

64...

July

194

1....

Sep

t. 19

62...

Mar

. 196

4. ..

Dec

. 19

65...

July

196

5....

Mar

. 196

5...

Dec

. 19

65...

Sept

. 19

61...

Aug

. 19

63...

Sep

t. 19

64...

Oct

. 1

96

5

July

19

58...

June

196

4...

Mar

. 19

61...

416

484

430

427

487

1380

UO

O

1400

380

1380

1380

1390

1380

1390

424

444

427

399

400

427

414

7,24

4

3,97

5

8,33

7

4,25

5

8,06

6

8,02

0

6,59

7

6,57

8

7,28

8

7,47

5

7,52

8

7,90

5

6,16

7

7,67

2

5,80

0

5,87

8

6,15

9

6,27

3

6,47

8

6,69

3

5,72

7

Ato

ka F

m--

-

St.

Gla

ir L

s- -

Pit

kin

Ls-.

? St.

Gla

ir L

S

Pen

ters

Ch

ert.

..

Fer

nval

e L

s.- ..

Can

e H

ill

Mbr

. of

Hal

e F

m.

Eve

rton

Fm

....

Can

e H

ill

(?)

Mbr

. of H

ale

Fm

.?

Fern

vale

(?)

Ls.

.

Pit

kin

Ls

Can

e H

ill M

br.

of H

ale

Fm

.

Pit

kin

Ls-

. .d

o..

....

....

....

.do

....

. ...

..

. ...

.do

.. ..

. ...

. .

....

.do.

. ..........

. ..d

o..

. ..

.--.

-do. .

....

...

d

o- ..

.

d

o-.

.

..... d

o. ...

... -

?

....

.dO

-.- ...

Ato

ka F

m..

...

Ato

ka(

?)F

m_

.

St.

Cla

ir(?

) L

s. -

Ato

ka F

m.... .

....

.do

....

. .

d

o.

... .

.do..

.

.... .d

o..

....

.. .

.....d

o. ..

58

..--

-....-

.

58 ------.

67

....

....

....

28

....

....

....

58 ...

67 - .....

...?

..- ..

116

Pra

irie

G

rove

.

58? ..

.

99

----

----

--10

0 .. ...

? ..

....

....

..

100

....- .

100

- .--.

100

............

116

Pra

irie

G

rove

. 58

? ....

100?

.

100 ..

58 ...

...

99

.. --.-

99 28

....... .

....

99

. .----

116

Pra

irie

G

rove

. 28

..

....

....

..99

............

99

..... ..

.10

9 . ..

...

99

.. -..

. 10

9 . ..

.11

6 P

rair

ie

Gro

ve.

2,82

2-2,

878

68

3,0

00

2,79

2-2,

933

1,5

10,0

00

3,

543-

3,62

2 1,

720,

000.

1,

945

Show

ofg

as...

2,87

6-2,

945

5,60

0,00

0.

3, 7

68-3

, 910

12

, 300

, 000

.

? Sh

ow o

f gas

....

7,89

6 Sh

ow o

f gas.

..

2, 6

21-2

, 658

1,

700,

000

5,11

0-5,

128

3,1

50,0

00

5,25

0-5,

272

9,80

0,00

0.

? 26

,000

- .

5,98

0-6,

014

3,70

0,00

0---

---

6,15

2-6,

165

7,5

00,0

00 -

----

----

----

- D

ry--

.---

--..

.

5,60

7-5,

637

2,1

50

,00

0..

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532-

6,54

6 2,

380,

000.

2,53

5-2,

565

495,

000.

-

5,07

0-5,

083

12,6

00,0

00.

7,55

6-7,

568

Show

of g

as..

.

4,78

2-4,

787

2,40

0,00

0. .

2,39

2-2,

424

2,26

0,00

0.. -

4,80

1-1,

848

1,15

0,00

0.

5,08

1-5,

098

Show

of g

as..

.

1,68

8-1,

707

2,00

0,00

0.-

5,17

2-5,

182

3,90

0,00

0.

6, 0

16-6

, 084

Sh

ow o

f gas

.

1,80

0 Sh

ow o

f gas

...

5,30

5-5,

340

1,40

0,00

0.

4,94

2-4,

950

4,9

50,0

00-.

5,

364-

5,38

2 4,

200,

000.

4,55

4-4,

588

4,5

50.0

00..

5,05

4-5,

084

UOK

nnn

5J 5

10-5

; 616

J38

5'00

0-

Fau

lt w

ith

80ft

of

disp

lace

m

ent c

ut a

t dep

th o

f 1,0

10

ft.

Roc

k sa

mpl

es e

xam

ined

an

d lo

gged

by

B.R

. Hal

ey.

Fau

lt w

ith

160 f

t of d

ispl

ace

m

ent c

ut a

t dep

th o

f 5,9

34

ft.

Ele

ctri

cal l

og n

ot a

vail

able

to

auth

ors.

Fau

lts w

ith

320

ft a

nd 2

00 ft

of

disp

lace

men

t cut

at d

epth

s of

4,0

94 f

t and

5,4

15 f

t, re

sp

ecti

vely

. E

lect

rica

l log

was

not

run

. R

ock

sam

ples

wer

e ex

am

ined

and

logg

ed b

y R

. J.

L

antz

. F

ault

wit

h 58

7 ft

of d

ispl

ace

m

ent

cut

at d

epth

of 7

,197

ft

. Roc

k sa

mpl

es f

rom

5,0

00

to

7,28

8 ft

ex

amin

ed

and

logg

ed b

y B

. R . H

aley

. F

ault

wit

h 56

5 ft

of d

ispl

ace

m

ent

cut

at d

epth

of 7

,078

ft

.

Fau

lt w

ith

373

ft o

f di

s

plac

emen

t cu

t at

dep

th o

f 1,

260f

t. E

lect

rica

l log

not

ava

ilab

le

to a

utho

rs.

Ele

ctri

cal l

og n

ot a

vail

able

to

aut

hors

.

Fau

lt w

ith

98 f

t of

dip

lace

- m

ent

cut

at d

epth

of

3,90

8 ft

. . F

ault

wit

h 39

2 ft

of

dis-

m

ent

cut

at d

epth

of 2

,486

ft

.

GEOLOGY

OF

THE

ARKANSAS

VALLEY

COAL FIELD

PART 2

VAJST BUREN AND LAVACA QUADRANGLES, ARKANSAS AND OKLAHOMA A39

243 _

e rf£

&llJtii

03

lag

s"2

EPq 5cW

I a §PH

S oc

? >Q

c

fPq

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TAB

LE 3

. D

escr

ipti

ons

of s

elec

ted

wel

ls d

rille

d in

Van

Bur

en a

nd L

avac

a qu

adra

ngle

t

Wel

l N

o.

(pis

. 1,

5;

fig.

11

)

Com

pany

nam

eL

ease

nam

eL

ocat

ion

(EL

, eas

t lin

e;

NL

, no

rth

line;

S

L,

sout

h lin

e; W

L, w

est

line)

Dat

e (C

ompl

etio

n da

te,

unle

ss

othe

rwis

e no

ted)

Rep

orte

d gr

ound

el

evat

ion

(ft)

Bot

tom

of w

ell

Dep

th

(ft)

Str

atig

raph

ic

unit

s, A

rkan

sas

and

Okl

ahom

a, a

s of

Sep

tem

ber

SO,

1966

C

onti

nued

Pro

duci

ng z

one

For

mat

ion

Zon

e M

embe

r N

o.

Rep

orte

d pr

oduc

tion

de

pth

(cu

ft p

er

(ft)

da

y)

Rem

arks

(es

t., e

stim

ated

)

1

Ark

ansa

s C

ontin

ued

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

Ark

ansa

s-

Okl

ahom

a G

as

Co.

St

ephe

ns

Pro

duct

ion

Co.

. .

do.-

--...

Ark

ansa

s O

klah

oma

Gas

Co.

A

thle

tic

Min

ing

and

Smel

ting

Co.

St

ephe

ns

Pro

duct

ion

Co.

A

rkan

sas

Okl

ahom

a G

as C

o.

Ath

leti

c M

inin

g an

d Sm

eltin

g C

o.

Ste

phen

s P

ro

duct

ion

Co.

Ten

neco

Oil

Co_

.

Sh

ellO

ilC

o.-

..... d

o.. ..

...

E.L

. C

ox........

Sun

Oil

Co.. _

.

d

o..

G. B

iek

erl-

-

Bue

ll R

anch

3.

Bue

ll R

anch

2.

W. W

. A

yers

5.

Bue

ll R

anch

2.

W.

W.

Aye

rs 1

.

W. W

. Aye

rs 6

.

C.

Step

hens

1-

T.

J. M

cBri

de

Uni

t 1.

Mis

sour

i Im

pr

ovem

ent

Uni

t 1.

B

ull

Uni

t 1

Ark

ansa

s V

alle

y F

arm

s 1.

A

rkan

sas

Val

ley

Far

ms

Cen

ter,

NW

J^S

EJi

sec

. 2,

T.

7N.,

R.

32W

.

2, 4

98 f

t fro

m N

L,

1,32

0 ft

fr

om E

L,

sec.

3, T

. 7N

., R

. 32

W.

600

ft f

rom

SL

, 10

0 ft

fr

om E

L,

NW

K, s

ec.

9, T

. 7N

., R

. 32

W.

670

ft f

rom

NL

, 55

0 ft

fr

om E

L,

NW

Ji s

ec.

10,

T.

7N.,

R.

32W

. 1,

994

ft f

rom

NL

, 18

0 ft

fr

om E

L,

sec.

10,

T.

7N.,

R.

32W

. 60

0 ft

fro

m S

L, 2

00 ft

fro

m

EL

, SW

M s

ec.

10, T

. 7N

., R

. 32

W.

630

ft S

., 1,

200

E.

of N

W.

cor.

sec.

11,

T.

7N.,

R.

32W

. 1,

992

ft f

rom

SL

, 1,

992

ft fr

om E

L,

sec.

11,

T.

7N.,

R.

32W

.

600

ft N

., 10

0 ft

E.

of

cent

er s

ec.

16, T

. 7N

., R

.32W

. 2,

970

ft fr

om N

L, 2

,310

ft

from

EL

, se

c. 2

0, T

. 7N

., R

. 32

W.

1,49

7 ft

fro

m S

L,

1,65

0 ft

fr

om W

L,

sec.

25,

T.

7N.,

R.

32W

. 1,

602

ft f

rom

SL

, 1,

805

ft

from

EL

, sec

. 26,

T.7

N.,

R.

32W

.

1,65

0 ft

fro

m N

L,

2,55

5 ft

fr

om W

L,

sec.

21,

T.

10N

.,27E

. C

ente

r N

W^N

WM

NE

^ se

c. 8

, T.

ION

., R

. 27

E.

Cen

ter

N}4

, se

c. 9

, T.

ION

., R

. 27

E.

Dec

. 1951

Apr

. 19

56. ...

Feb.

196

3....

Jan

19

53

Nov

. 19

47--

.

June

195

7. ..

Aug

. 19

52--

.

Jan.

194

9-..

.

Dec

. 19

63...

Bei

ng

drill

ed.

Sept

. 1965

Mar

. 19

64. .

.

Spu

dded

Ju

ne 1

966.

Spud

ded

Feb.

196

6.

Spud

ded

June

196

6.

491

495

1490 49

7

1505

480

501

1480

1645 50

3

526

2429

416

2420

5,81

0

6,31

5

6,77

0

5,74

0

2,44

0

6,14

5

5,47

4

6,38

5

7,16

0

7,97

1

8,26

5

5,92

5

6,00

0

6,66

5

Pit

kin

Ls-

..

.

Pit

kin(

?) L

s

Blo

yd (

?) F

m-.

_

Pit

kin

(?)L

s

Pit

kin

Ls .....

St.

Cla

ir L

s_

Okl

ahom

a

Pen

ters

Che

rt ..

.

Blo

yd F

m-_

.

St.

Cla

ir L

s ..

..

? ?

Ato

ka (

?) F

m..

58?

. ...

..

.-..do--...

78 .

109

....

.. ..

..

Blo

yd F

m--

_. _

. _ _

. ...

Ato

ka (

?) F

m.

98?

... .

....

. ...

109?

Blo

yd (?

) F

m.._

. ..

...

Ato

ka F

m.

58

?

Pitk

in

Ls

Pen

ters

Che

rt )

St.

Cla

irL

s J - - --

---

Pla

ttin

Ls.. ..

. ..

... .

Gro

ve.

Ato

ka F

m.....

109

....

....

....

Blo

yd F

m.

___ _

__

__

__

__

? 2

4,0

00

,00

0

2,42

0-2,

480

275,0

00.

3,85

8 Sh

ow o

f ga

s...

5,48

6-5,

5231

}16,

000

, 000

. 5,

536-

5,58

2 |

5,10

0 S

how

ofga

s--.

J5, 6

08-5

, 656

4,

000,

000.

?

160,

000.

.. .....

.., - -

Dry.. __

_

3,77

5 S

ho

wo

fgas

...

7, 41

1-7,

450

Sh

ow o

f gas

.7,

918-

8,00

2 8,

800,

000.

8,

178

-8, 1

90

Show

of g

as.

5,47

6-5,

502)

gh

f 5,

543

-5. 5

47J

BhO

W O

l gas

- - -

5,88

4-5,

924

3,00

0,00

0. .

5, 62

0-5,

660

Sh

ow o

f gas

. . .

Roc

k sa

mpl

es e

xam

ined

an

d lo

gged

by

E.

E.

Glic

k.

Ele

ctri

cal l

og w

as n

ot r

un.

Fau

lts

wit

h 11

0 ft

and

123

ft

of

disp

lace

men

t cu

t at

de

pths

of

3, 2

76 f

t an

d 4,

906

ft, r

espe

ctiv

ely.

E

lect

rica

l log

not

ava

ilabl

e to

aut

hors

.

Ele

ctri

cal l

og w

as n

ot r

un.

Ele

ctri

cal

log

was

not

run

.

Ele

crri

cal l

og w

as n

ot r

un.

Roc

k sa

mpl

es f

rom

5,4

10

to 6

,385

ft.

exam

ined

and

lo

gged

by

R.

J. L

antz

. F

ault

wit

h 80

ft

of d

is

plac

emen

t cu

t at

dep

th

of 5

,293

ft.

Fau

lt w

ith

610

ft o

f di

s

plac

emen

t cu

t at

dep

th

of 5

,255

ft.

Fau

lt w

ith

250

ft o

f di

s

plac

emen

t cu

t at

dep

th

of 1

,541

ft.

GEOLOGY

OF

THE

ARKANSAS

VALLEY

COAL

FIELD PAR

T 2

152

do..

.._

__

For

sgre

n B

ros.

1.

Cen

ter

NW

^SE

^ se

c.

16, T

. IO

N.,

R.

27E

.Sp

udde

d F

eb.

1966

.

153 . do . B

.E.

Cobbl.

. C

ente

r N

WH

NE

H s

ec.

Spu

dded

24

3117

, T.

ION

., R

. 27

E.

Aug

. 19

65.

154

do

- ..........

R.

A.

Wils

on

Cen

ter

NW

J^SE

M s

ec. 1

8,

Spud

ded

418.

81.

T.

ION

., R

. 27

E.

Mar

. 19

66.

414

6,48

9 P

itkin

Ls.

----

-. A

toka

Fm

._.

6 S

how

of g

asB

loyd

Fm

1W

" "}

5,96

4-6,

004

1,0

20,0

00

H

ale

Fm

"

11

6 P

rair

ie

6,35

4-6,

390

4,60

0,00

0.G

rove

. 6,

975

St. C

lair

Ls.

...

Ato

ka F

m.....

58

............

3,01

6-3,

030

1,04

4,00

0. _

..__

Fau

lt w

ith

355

ft o

f di

s-10

9 _______

5,89

0-5,

942

2,22

5,00

0.

plac

emen

t cu

t at

dep

th

Hale

Fm

.

116

Pra

irie

6,

294-

6,38

3 Sh

ow o

f ga

s.

of 5

,152

ft.

Gro

ve.

Pen

ters

Chert-

-----__

6,84

2-6,

855

Sho

wof

gas.

6,75

1 P

rair

ie G

rove

A

toka

Fm

. ..

. 7

__

__

_-

1,70

4-1,

720

Show

of g

as..

. F

ault

s w

ith

210

ft a

nd 1

05M

br. o

f H

ale

109

____.

6,31

8-6,

336

250,

000.

ft

of

disp

lace

men

t cu

t at

F

m.

dept

hs a

t 4,

457

ft a

nd5,

175

ft, r

espe

ctiv

ely.


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