venezuela atlas 2004 example pages

8/12/2019 Venezuela Atlas 2004 Example Pages

http://slidepdf.com/reader/full/venezuela-atlas-2004-example-pages 1/12

Exploration Framework Atlas Series:

Volume 2: Venezuelaby

Tectonic Analysis, Ltd

Tectonic Analysis, Ltd.

COPYRIGHT ©, 2004, Tectonic Analysis, Ltd.

Volume 1: ColombiaVolume 3: Ecuador-Peru-Bolivia

James Pindelland

Lorcan KennanStephen Barrett

Roger HiggsTomas Villamil Johan EriksonDr. Sam Algar



TECTONICS, PALINSPASTIC BASE MAPS, AND PALAEOGEOGRAPHY

1a Digital Topography.

Introduction: Scope, methodology, major components, contributors.

1b Contents of the Atlas.

2a Plate tectonic context and introduction. Caribbean evolutionary model.

2b Plate kinematics, steady-state model for Caribbean-South American plate boundary.

3a Palinspastic restorations of North Andes and South Caribbean deformations.

3b End Jurassic, 25Ma and 12Ma palinspastic grids: base for palaeogeographic maps.

4a Triassic-Jurassic rifting, Cretaceous passive margin, possible Jurassic source rock.

4b Triassic-Jurassic palaeogeography and supporting text.

5a Cretaceous stratigraphy, correlation chart.

5b Cretaceous sequence stratigraphic X-sections, Western and Eastern Venezuela.

6a Berriasian-Barremian palaeogeography and supporting text.

6b Aptian palaeogeography and supporting text.

7a Early Albian palaeogeography and supporting text.

7b Middle and Late Albian palaeogeography and supporting text.

8a Cenomanian palaeogeography and supporting text.

8b Turonian-Coniacian palaeogeography and supporting text.

9a Santonian-Campanian palaeogeography, supporting text.

9b Maastrichtian palaeogeography and supporting text, onset of tectonism.

10a Passive margin to foreland transition in west, model of "anti-bulge" flexural basin.

10b Early Palaeocene palaeogeography and supporting text.

11a Late Palaeocene palaeogeography and supporting text.

11b Early Eocene palaeogeography and supporting text.

12a Early and middle Middle Eocene palaeogeography and supporting text.

12b Early Late Eocene palaeogeography and supporting text.

13a Latest Eocene to earliest Oligocene palaeogeography and supporting text.

13b Mid to Late Eocene sedimentation. Eocene unconformity and Falcon problem.

14a Mid to Late Oligocene palaeogeography and supporting text (proto-Mérida, etc.) .

14b Late Early Miocene palaeogeography and supporting text.

15a Text continued from Page 14b.

15b Late Middle Miocene Palaeogeography and supporting text.

16a Transtension and transpression in Eastern Venezuela/Trinidad.

16b Radical new interpretation of Furrial-Pedernales-Central Range structure.

17a Seismicity and active tectonics.

ACKNOWLEDGEMENTS: We are grateful to Drs. Tomas Villamil, Johan Erikson, and Sam Algar for their long-standing input to various parts of the syntheses and conclusions

further developed and presented herein. Also, we thank PDVSA, Petrotrin, and Ecopetrol for their extensive professional discussions and interactions on pertinent information and

topics considered herein.

© COPYRIGHT, 1999, 2004, Tectonic Analysis, Ltd. No reproduction, copy, or transmission of parts or all of this atlas or accompanying digital files, is permitted without prior

written consent of Tectonic Analysis, Ltd. Appropriate uses of this atlas and its digital files are defined by the license agreement between Tectonic Anala ysis Ltd. and licensees.

TIMING OF MATURATION/MIGRATION (OF CRETACEOUS SOURCE ROCKS)

17b Hydrocarbon Systems: Source rocks, Migration of foredeep basin and oil kitchen.

18a Kitchen/migration maps: early late Eocene, late Oligocene.

18b Kitchen/migration maps: early Miocene; late Miocene to Recent.

BASIN SUMMARY CHARTS

19a Barinas Basin 19b Guarico Basin

20a Maturín Basin 20b Western onshore Maracaibo Basin

21a NE Maracaibo Basin 21b SE Maracaibo Basin

22a West Falcón Basin 22b East Falcón Basin and La Vela Bay

23a Apure Basin 23b Gulf of Paria Basin

24a Delta Amacuro, E. Maturin 24b Central/Southern Trinidad Basin

PALAEOENVIRONMENTAL INTERPRETATION OF KEY SECTIONS: INPUT TO MAPS

25a Maracaibo section location map, chronostratigraphic chart, forebulge model.

25b Maracaibo fence diagram; Section 1, Guasare, La Sierra fms at Rio Negro roadcut.

26a Section 2, Los Cuervos, Mirador fms at Tarra Anticline; Section 3, Orocue Gp at Río

Lobatería; Section 4, Orocue Gp and Mirador Fm at Río Lobatería.

26b Section 5, Catatumbo and La Cope fms, Vega de A.; Section 6, Palmar Fm at Río

Chama roadcut; Section 7, Palmar Fm, Río Chama valley.

27a Section 8, "Tambor" unit at La Azulita; Section 9, Tambor unit and Jaji; Section 10,

Mucujún Fm near Mérida; Section 11, El Cobre Fm at Río Quiú.

27b Section 11, El Cobre Fm at Río Quiú, cont. Section 12, Paguey Fm at Altamira;

Section 13, Misoa and Caús fms at Valera; Section 14, Misoa Fm at Agua Viva.

28a Section 15, Misoa Fm at Silboca Quarry; Section 16, Betijóque Fm at Betijoque

28b Introduction to the Maastrichtian to Cenozoic strata of Eastern Venezuela.

Section 1, Tinajitas member and Los Jabillos basal unconformity at Tinajitas syncline;

Section 2, Caratas and basal Los Jabillos Fms in Rio Querecual.

29a Detailed log of Rio Querecual Los Jabillos Fm.

29b Section 3, Capaya Fm at Rio Amana Valley roadcut; Section 4, Caratas and Los Jabillos Fms on

Cerro Corazon; Section 5, San Juan and Vidoño Fms on Cerro Voladero road.

30a 6, Vidoño and Caratas Fms in Rio Guarapiche; 7, Vidoño to Carapita Fms, Rio Aragua;

8, San Juan Fm in Rio Taguaya valley roadcut.

30b Discussion of stratigraphy and the "Naricual Question".

CONTENTS OF CD-ROM

A. All maps, figures, texts of this atlas, PDF and CANVAS format

B. Measured sections and environmental assessments, Serranía del Interior Oriental

C. Expanded texts and figures of complementary material, including expanded discussion of stratigraphic

sections in east and west Venezuela, new biostratigraphic dating and bibliography.

CONTENTS

Tectonic 1b Analysis



Time Setting/Stage Source Reservoir SealTraps

Jurassic

Lower

Cret

Upper

Cret

Paleo-

cene

E o c e

n e

Oligo-

cene

M i o c e n e

Pliocene

Quat-

ernary

I, II, III, type org matter. F, fault. S, strat. C, combo.Basin:

Stratigraphy

L

M

E

L

L

L

E

E

E

E

E

L

L

M

Accelerating uplift

of Mérida Andes,

part of load

directed towardBarinas Basin,

with up to 5 km

foredeep fill

(thermal blanket).

Rio Yuca

Parangula

(Quebradon)

M

b

i

o

Thrust related,

especially during

R. Yuca Fm. (Lt.

Miocene-?Pliocene)

Normal faulting

Unconformity and

hiatus

Distal foreland basin

(of Lara nappes,

northern Maracaibo)

Passage of peripheral

bulge. Block faulting,

erosion down to

Turonian on horsts.

Passive margin

Rifting of Yucatán

from Venezuela margin

BARINAS

local La Quinta

Peneplained un-

conformity and

hiatus

Aguardiente

Unconformity and

hiatus

Navay

Escandalosa

Gobernador

Paguey

Navay/La

Luna, II

<4% TOC

Burguita 2°

Escandalosa 2°

Gobernador

sandst., 1°

Paguey

Shale

Rift-flank flexural

uplift?

Burguita

Masparrito

Rebound of Lara foredeep

causes regression, erosion

Navay?,

but brittle

fracture

Transpressive?

faulting close to

Andes, at onset of

deformation?

Guanapa

Rio Yuca

~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~

Tectonic 19a Analysis

SUMMARY BASIN CHART: BARINAS



Extras on Venezuela Exploration Framework Atlas CD-ROM:

MARA_LGS.pdf

Maracaibo area logs - full description, locality details, bibliography - complements logs in atlas

PALYAGES.pdf

Our new palynological age data for the Maracaibo area

EAST_LGS.pdf

Selected Serrania area logs (our field studies) - full description, locality details, bibliography - complements

logs in atlas (11 pages)

VEN_PET.pdf,cwk

pdf and Clarisworks versions of our sandstone petrography database (164 samples)

SERRANIA.pdf

Text and figures for our reworking of Ministry logs for Serrania (133 pages)

CRT_LGS1.PDFCa. 1 cm = 10 m logs, Wide format (915 mm) pages with our annotation, revised correlations, new strati-

graphic ages, facies interpretation for Cerro El Paraiso,Isla Chimana Grande (West), Isla Venados, Peninsula

Pertigalete (West)La Puerta, Quebrada Güirintal, Quebrada Los Altos, Quebrada Rincon, Rio Caripe (S.W.),Rio Perdido, Rio Capiricual

CRT_LGS2.PDF

Alto El Zamuro, Cerro Canton, Cerro Copei, Cerro La Paloma, Isla Chimana Grande (E), Isla Picuda Grande

CRT_LGS3.PDF

N.E. de Tacata, Quebrada Los Chorros-Rio La Maravilla, Rio Caripe (S.E.) Rio Querecual, Rio Triste-

Quebrada Rincon, Valle grande-Las Chaguaramas, Valle grande-Trapiche Santa Rosa

TER_LGS1.pdf

Cerro Canton, Cerro Limon-Cuspural, El Banco, Quebrada Teresen, Rio Colorado

TER_LGS2.pdf

Alto La Paloma, Cerro Los Caballos, Quebrada La Salada, Rio Aragua (East), Rio Aragua (West), Rio

Punceres, Sinclinal de Tinajitas (North), Sinclinal de Tinajitas (South)

TER_LGS3.pdf

Cerro Los Godos, Quebrada Pegua, Rio Amana-Rio Oculto, Rio De Oro (North), Rio De Oro (South), Rio

Oregano, Rio Capiricual Este, Rio Guario

BIBLIO.txt

Text only version of bibliography (3826 entries)

Ven_biblio_95

Endnote bibliography for Venezuela, up to 1995



P I C U D A M E M B E R ( 4 3 9 . 5 m )

S U C R E G R O U P

E L C A N T I L F O R M A T I O N ( + 1 2 9 m )

B A R R A N Q U I N F O R M A T I O N ( 1 1 5 1 m )

T A G U A R U M O M E M B E R ( 7 0 1 . 5 m )

ISLA PICUDA GRANDE

TOP

ISLA PICUDA GRANDE

BOTTOM

c s

m s

m u d s i l t f s

B A R R A N Q U I N F O R M A T I O N ( + 3 8 1

m )

CHIMANA GRANDE

(East)

BOTTOM

g

g

g

f

f

C H I M A N A F O R M A T I O N ( 1 4 6 m )

E L C A N T I L F O R M A

T I O N ( 4 7 9 m )

Q U E R E C U A L F O R M A T I O N ( + 2 6 7 m )

G U A Y U T A G R O U P

S U C R E G R O U P

ISLA CHIMANA GRANDE

(East)

TOP

c s m s

m u d s i l t f s

S U C R E G R O U P

E L C A N T I L F O R M A T I O N ( + 3 0 5 m )

ALTO EL ZAMURO

g

c s m s

m u d s i l t f s

S U C R E G R O U P

E L C A N T I L F O R M A T I O N ( 1 6 1 m )

Q U E -

R E C U A L

B A R R A N Q U I N

CERRO COPEI

c s

m s

m u d s i l t f s

G U A Y U T A

S U C R E G R O U P

C H I M A N A ( 3 1 m )

E L C A N T I L F O R M A T I O

N ( 2 9 1 m )

CERRO CANTON

(Guacharo)

S A N T A A N I T A G R O U P

S A N

J U A N F O R M A T I O N ( 2 8 2 . 5 m )

S A N A N T O N I O

F O R M A T I O N ( 6 7 5 m )

g

g

g

g

g

g

g

g

g

P A L E O C E N E

CERRO LA PALOMA

TOP

Pico

Garcia

section

G U A Y U T A G R O U P

CERRO LA PALOMA

MIDDLE

CERRO LA PALOMA

BOTTOM

S U C R E G R O U P

ISL

Dartmouth-Ministry of Energy and MinesVenezuela-Trinidad Research Program 1995

Cretaceous sections - Plate 2

Highly glauconitic sandstone (greenstone)

Clay-rich sandstone

Calcareous clay-rich sandstone

Fine-grained calcareous sandstone

Fine-grained sandstone

Medium-grained calcareous sandstone

Medium-grained sandstone

Coarse-grained calcareous sandstone

Coarse-grained sandstone

Conglomeratic sandstone

Argillaceous limestone

Argillaceous silty limestone

Silty limestone

Sandy limestone

Limestone

Hemipelagic limestone

Chert

Calcareous shale

Shale

Sandy calcareous shale

Silty shale

Sandy shale

Carbonaceous shale

Clay-rich shale

Sandy clay-rich shale

Calcareous siltstone

Sandy siltstone

Siltstone

Carbonaceous lithologies

g g

Sandstone dykes

Cross-bedding

Coal beds

Glauconite

Benthic/planktonic forams

Bivalves

Fe-rich Nodules

Calcareous nodules

Silty nodules

Sandstone nodules

Glauconitic nodules

Conglomeratic nodules

Euhedral quartz clasts



Stratigraphic/Petrographic DatabaseTectonic Analysis

PO Box B-1136

Hanover, NH 03755

(603) 795-4319

Tabbutt Consulting3213 Cove Lane NW

Olympia, WA 98502

(360) 866-4822

v. 2.0

Sample ID GM4-7 Date:

Stratigraphic unit: "El Tambor Sandstones"

Location: Quarry, road to La Azulita Lati tude: Longitude:

Lithology: quartz arenite

Matur i ty : m Sand to shale ratio: 99:1

Sor t ing : vws

Roundness : r

Major minerals: quartz

Minor minerals: K-feldspar, heavy minerals

Cement: hematite, quartz overgrowths

UTM: N&S E&W

Grain relationships: ccc, lc, gs

Grain size: mean: 2

m a x i m u m 2

m i n i m u m 4

Diagenetic characteristics: euhedral quartz oergrowths and solution

Porosity:

Point count data: n: 226

monocrystalline quartz: 212

polycrystalline quartz: 4

Ftotal: 4.0

K feldspar: 4

Ltotal:0.0

QFLpercentQ: 98.2

QFLpercentF: 1.8

QFLpercentL: 0.0

Comments: many heavy minerals, no porosity, quartz overgrowths

lithic fragments: volcanic: 0

plagioclase: 0

sed im en ta ry : 0

phyl los i l ica tes : 0

c h e r t : 0

m etam orph ic : 0

o t h e r : 0

percent phyllosilicates: 0.0

Lsm: 0.0

dense minerals: 2

percent dense minerals: 0.9

Lvm: 0.0

ca rbona te s : 0

Cement: calcite: 0

si l icate: 0 other cement: 4

ch lo r i t e : 0

PtoF: 0.0

Ltpe rcen tLv : #ERR

LtpercentLs: #ERR

LtpercentLm: #ERR

QmFLtpercentQm: 98.1

QmFLtpercentF: 1.9

QmFLtpercentLt: 0.0

QpLvmLsmpercentQp: 100.0

QpLvmLsmpercentLvm: 0.0

QpLvmLsmpercentLsm: 0.0

Qtotal: 216.0

PetrologyData

OutcropData

Country: VE

Exposure type:unit thickness:

thickness accuracy:

s t r ike :dip:

color :

depth of sample:depth accuracy:

w e a t h e r i n g :

oil staining:

tec tonism:

percent exposure:

Contacts: upper

Age: E - M Eocene tNum: 11.2

lower :

Depositional environment:

bedd ing :

g r a d i n g :

p a l e o c u r r e n t :

pa l eoba thym et ry :

Comments: collected by Roger Higgs,

8.7

venezuela atlas 2004 example pages

Documents