surficial geologic map of the town of dover, …boulders of varying lithology and rare bedrock...

1
Æ · 100 Haystack Pond Elwin Meadow Somerset Reservoir Rock River Ellis Brook Blue Brook Adams Brook Cold Brook Bemis Brook North Branch Deerfield River Hunter Brook Taft Brook Cheney Brook Negus Brook Baker Brook Waite Brook Hall Brook Dover Brook A C B C' B' A' Qtt Qt Qtt r Qt Qtt Qt Qt Qtt Qt Qt Haf Haf Qtt r Qtt Qtt r Qt Qt Qtt r r Qt Qt Haf Qt r r r r Haf r r Haf Qtt r r r r r r r Qt Qtt r Qtt r r r Qt r r r r r r r r r r r r r r Qtt r r Hft r r r Haf r r r r r r Hft r r r Hft r Haf r r Haf r r r r r r r Hpm Hft r r Hft r r Hft r r r r Qt r Qtt Hft r r Hft r r Hft r r r Hft r Haf Hft r r r r Hft r Hft Hft Hft Hpm Hft r Hft Hft Qt Hft r Hpm Qow r Hft Hft Hft Hpm Hft r Haf Hpm Hpm Hpm Hpm Hpm Hpm Hpm Hpm Hpm Hpm Haf Qt Haf 72°45'0"W 72°45'0"W 72°52'30"W 72°52'30"W 43°0'0"N 43°0'0"N 669000 669000 670000 670000 671000 671000 672000 672000 673000 673000 674000 674000 675000 675000 676000 676000 677000 677000 678000 678000 679000 679000 680000 680000 681000 681000 682000 682000 683000 683000 4754000 4754000 4755000 4755000 4756000 4756000 4757000 4757000 4758000 4758000 4759000 4759000 4760000 4760000 4761000 4761000 4762000 4762000 4763000 4763000 Published by: Vermont Geological Survey Laurence Becker, State Geologist Department of Environmental Conservation Agency of Natural Resources 103 South Main St., Logue Cottage Waterbury, VT 05671-2420 http://www.anr.state.vt.us/dec/geo/vgs.htm Base map from U.S. Geological Survey. Quadrangle names printed in blue. Coordinate System: Vermont State Plane, meters, NAD 83. Geographic coordinates shown at topo corners are in NAD 83. Grid overlay on map is Universal Transverse Mercator, Zone 18N, NAD 27. Digital Cartography by: John Van Hoesen and Marjorie Gale Date: 2011 Vermont Geological Survey Open File Report VG11- 1 Ö N MN Magnetic declination 15.5 degrees west, 1968 Research supported by the Vermont Geological Survey, Dept. of Environmental Conservation, VT ANR. This geologic map was funded in part by the USGS National Cooperative Mapping Program. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government. SURFICIAL GEOLOGIC MAP OF THE TOWN OF DOVER, VERMONT by John Van Hoesen 2011 0 1 2 3 0.5 Miles Contour Interval 20 Feet 0 1 2 3 4 5 0.5 Kilometers 1:24,000 SCALE VERMONT Map Location - Dover, VT LEGEND Map Symbols Town Boundary ! ( Striations # Field Sites Lake/Pond River/Stream Roads Line of cross-section Description of Map Units Qtt - Thin Glacial Till: Ice derived deposits (<3m thick) composed of oxidized, unsorted, poorly-stratified slightly sandy till, characterized by frequent surface boulders and bedrock exposures. Commonly mimics upland topography and lacks abundant rock walls and rock piles. Qt - Glacial Till: Ice derived deposits (>3m thick) composed of grey, unsorted, poorly-stratified clay-rich till, characterized by frequent surface boulders of varying lithology and rare bedrock exposures. Predominantly found mantling gently sloping topography and streamlined hills with common rock walls and rock piles. Qow - Outwash: Well-sorted, well-stratified coarse sand/gravel deposit containing clasts of varying size and lithology. Hpm - Wetland/Peat: Well-sorted, well-stratified silt/clay deposits associated with concave topography with limited drainage. Predominantly occurs in low-lying valley settings, however some deposits occur in steep upland settings. Hft - Fluvial Terraces:Well-sorted, well-stratified sand/silt/pebbles/cobbles on gently sloping topography that represent historical floodplain sediments, which are now dissected by modem streams. Haf - Alluvium: Well-sorted, well-stratified, fluvial deposits adjacent to or in stream channels, sand/silt/pebbles/cobbles coarsening towards stream headwaters. Variable extent and thickness depending on location in field area; deposits are founding filling steep valley fluvial channels and covering broad floodplains in lowland settings. r - Rock outcrop ! . Bedrock Exposures

Upload: others

Post on 18-Mar-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: SURFICIAL GEOLOGIC MAP OF THE TOWN OF DOVER, …boulders of varying lithology and rare bedrock exposures. Predominantly found mantling g ent ly so p ir a hdm w ith com n r ka l sd

Æ·100

Haystack Pond

Elwin Meadow

Somerset Reservoir

Rock River

Ellis Brook

Blue B

rook

Adams Brook

Cold Brook

Bemis Brook

North Branch Deerfield River

Hunter BrookTaft Brook

Cheney Brook

Negu

s Broo

k

Baker Brook

Waite Brook

Hall B

rook

Dover

Broo

k

A

C

B

C'

B'

A'

Qtt

Qt

Qtt

r

Qt

Qtt

Qt

Qt

Qtt

Qt

Qt

Haf

Haf

Qtt

rQtt

Qtt

r

Qt

Qt

Qtt

r

r

Qt

Qt

Haf

Qt

r

r

r

r

Haf

r

rHaf

Qttr

r

r

r

r

r

r

Qt

Qtt

r

Qtt

r

r

r

Qt

r

r

r

r

r

r

r

r

r

r

r

r

r

r

Qtt

r

r

Hft

r

r

r

Haf

r

r

r

r

r

r

Hft

r

r

r

Hft

r

Haf

r

r

Haf

r

r

r

r

r

r r

Hpm

Hft

r

r

Hft

rr

Hft

rr

r

r

Qt

r

Qtt

Hft

r

r

Hft

r

r

Hft

r

r

r

Hft

r Haf

Hft

r

r

r

r

Hft

r

Hft

Hft

Hft

Hpm

Hft

r

HftHft

Qt

Hft

r

Hpm

Qow

r

HftHft

Hft

Hpm

Hft

r

Haf

Hpm

Hpm

Hpm

Hpm

Hpm

Hpm

Hpm

Hpm

Hpm

Hpm

Haf

Qt

Haf

72°45'0"W

72°45'0"W

72°52'30"W

72°52'30"W

43°0

'0"N

43°0

'0"N

669000

669000

670000

670000

671000

671000

672000

672000

673000

673000

674000

674000

675000

675000

676000

676000

677000

677000

678000

678000

679000

679000

680000

680000

681000

681000

682000

682000

683000

683000

4754

000

4754

000

4755

000

4755

000

4756

000

4756

000

4757

000

4757

000

4758

000

4758

000

4759

000

4759

000

4760

000

4760

000

4761

000

4761

000

4762

000

4762

000

4763000

4763

000

Published by:Vermont Geological SurveyLaurence Becker, State GeologistDepartment of Environmental ConservationAgency of Natural Resources103 South Main St., Logue CottageWaterbury, VT 05671-2420http://www.anr.state.vt.us/dec/geo/vgs.htm

Base map from U.S. Geological Survey.Quadrangle names printed in blue.Coordinate System: Vermont State Plane, meters, NAD 83.Geographic coordinates shown at topo corners are in NAD 83.Grid overlay on map is Universal Transverse Mercator,Zone 18N, NAD 27.Digital Cartography by: John Van Hoesen and Marjorie GaleDate: 2011

Vermont Geological Survey Open File Report VG11- 1

ÖNMN

Magnetic declination15.5 degrees west, 1968

Research supported by the Vermont Geological Survey, Dept. of Environmental Conservation, VT ANR.This geologic map was funded in part by the USGS National Cooperative Mapping Program.The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.

SURFICIAL GEOLOGIC MAP OF THE TOWN OF DOVER, VERMONTby

John Van Hoesen2011

0 1 2 30.5Miles

Contour Interval 20 Feet

0 1 2 3 4 50.5Kilometers

1:24,000SCALE

VERMONT

Map Location - Dover, VT

LEGEND

Map Symbols

Town Boundary

!( Striations

# Field Sites

Lake/Pond

River/Stream

Roads

Line of cross-section

Description of Map Units

Qtt - Thin Glacial Till: Ice derived deposits (<3m thick) composed of oxidized, unsorted, poorly-stratified slightly sandy till, characterized by frequent surface boulders and bedrock exposures. Commonly mimics upland topography and lacks abundant rock walls and rock piles.

Qt - Glacial Till: Ice derived deposits (>3m thick) composed of grey, unsorted, poorly-stratified clay-rich till, characterized by frequent surface boulders of varying lithology and rare bedrock exposures. Predominantly found mantling gently sloping topography and streamlined hills with common rock walls and rock piles.

Qow - Outwash: Well-sorted, well-stratified coarse sand/gravel deposit containing clasts of varying size and lithology.

Hpm - Wetland/Peat: Well-sorted, well-stratified silt/clay deposits associated with concave topography with limited drainage. Predominantly occurs in low-lying valley settings, however some deposits occur in steep upland settings.

Hft - Fluvial Terraces:Well-sorted, well-stratified sand/silt/pebbles/cobbles on gently sloping topography that represent historical floodplain sediments, which are now dissected by modem streams.

Haf - Alluvium: Well-sorted, well-stratified, fluvial deposits adjacent to or in stream channels, sand/silt/pebbles/cobbles coarsening towards stream headwaters. Variable extent and thickness depending on location in field area; deposits are founding filling steep valley fluvial channels and covering broad floodplains in lowland settings.

r - Rock outcrop !. Bedrock Exposures