Soulis Brook

Exploits River

Northwest

Gander R

iver

Dog Bay

Loon Bay

Hare Bay

Shoal Bay

Burnt

Bay

Indian Bay

Friday Bay

Gander Bay

Lockers Bay

Trinity Bay

Deadman's Bay

Notre Dame Bay

Freshwater Bay

Y Pond

Ten Mile Pond

Wing Pond

Gull Pond

Cooks Pond

North Pond

Square Pond

Soulis Pond

Gander Lake

Rodney Pond

Big Bear Cave Pond

First Burnt Pond

Limit

of S

tudy

Are

a

N o r t hA t l a n t i c

O c e a n

Bonavista Bay

Fogo

Gambo

Gander

Embree

Benton

Botwood

Lumsden

Horwood

Glenwood

Hare Bay

Cobbs Arm

Birchy Bay

Greenspond

Summerford

Lewisporte

Norris Arm

Aspen Cove

Carmanville

Twillingate

Campbellton

Deadman's Bay

New-Wes-Valley

Change Islands

Musgrave Harbour

Point Leamington

Moreton's Harbour

Seldom-Little Seldom

Centreville-Wareham-Trinity

Joe Batt's Arm-Barr'd Islands-Shoal Bay

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53°0'

53°0'

53°15'

53°15'

53°30'

53°30'

53°45'

53°45'

54°0'

54°0'

54°15'

54°15'

54°30'

54°30'

54°45'

54°45'

55°0'

55°0'

55°15'

55°15'50°15'

50°0'

50°0'

49°45'

49°45'

49°30'

49°30'

49°15'

49°15'

49°0'

49°0'

48°45'

48°45'

Gander

St. John's

St. Anthony

Corner Brook

Stephenville

Grand Falls-Windsor

Channel-Port aux Basques

NEWFOUNDLAND

12I

11P

02L

02F

11O

12B 12A

02E

02C02D

12H

01M

52°W

52°W

54°W

54°W

56°W

56°W

58°W

58°W

60°W

60°W

51°N51°N

50°N50°N

49°N49°N

48°N 48°N

47°N 47°N

0 5 10 15 20 25Kilometres

Elevation in feet above mean sea level. Contour interval approximately 100 feet

1:500,000 Surficial Geology -Liverman, D.G.E and Taylor, D.M 1990: Surficial geology of insular Newfoundland; preliminary version: Newfoundland Department of Mines and Energy, Geological Survey Branch Map 90-08

100 0 10050

Kilometers

SURFICIAL GEOLOGYMap No.

Central Newfoundland

1b

UNIT B

UNIT A

SYMBOLSGeological Boundary (assumed)..............................................................................................Esker.........................................................................................................................................

REFERENCE:

Department of Environment and ConservationDepartment of Natural Resources

Exposed Bedrock: exposed bedrock with little or no sediment or vegetation cover; patches of till and other surficial sediment present but rare; topography and relief variable, and bedrock controlled Concealed Bedrock: bedrock, mainly concealed by vegetation; patches of till, sand and gravel, and bog (commonly less than 1.5 m thick) and exposed bedrock are common, but form less than 50% of the unit Diamicton Veneer: thin (less than 1.5m) discontinuous sheet of diamicton (poorly sorted sediment containing grain sizes from clay to boulders) overlying bedrock; patches of exposed bedrock and thicker sediment cover common; diamicton generally contains from 20% to 90% matrix (sand size or finer), and 80% to 10% clasts (greater than sand size); matrices generally dominated by sand with less than 20% silt and clay; maximum clast sizes from 1 to 2 m diameter; but clasts mostly granules (0.2 to 0.4cmc diameter); relief and topography variable and bedrock controlled Ridged Diamicton: a blanket of diamicton, 1.5 to 20m thick, with a topography consisting of streamlined elongate ridges 1.5 to 20m high, and 0.2 to 500m long; diamicton is of similar composition to diamicton veneer; this unit was likely deposited under actively flowing ice, with the long axis of ridges either parallel or perpendicular to ice flow Hummocky Diamicton: a blanket of diamicton, 1.5 to 15m thick having irregular hummocky topography and relief of 2 to 10m; hummocks are mainly composed of diamicton, but some may contain poorly sorted sand and gravel; diamicton is of similar composition to diamicton veneer; bog is commonly found in low areas between hummocks; this unit was mainly deposited by ice disintegration and stagnation during deglaciation Diamicton Blanket: similar to diamicton veneer; any deposit greater than 1.5m thick; minor irregularities of the underlying units are masked but the major topographic form is still evident Glaciofluvial Gravel and Sand: poor to well sorted sand and gravel, 1.5 to 50m thick, having a diverse surface topography; gravel is pebble to cobble sized, and forms 50 to 95% of the sediment; the unit includes eskers (sinuous, elongate ridges 3 to 15m high, and up to 5km long); kames (moderated to steep sided mounds up to 15m high), and outwash plains (plains with low relief, and a channeled surface, 3 to 20m thick, and up to 10km long) Marine clay, sand, gravel and diamicton: this unit consists of a wide range of sediment types, deposited in a marine or glaciomarine environment; moderate to well sorted gravel and sand, up to 50 m thick, found in marine terraces and raised beaches; well sorted silt and clay, up to 90m thick, are found in ice distal glaciomarine deposits with most of the sediment lying below modern sea level; all of these sediments have been raised to their present elevation by isostatic rebound, resulting in relative sea level fall since deglaciation Fluvial: low relief plains with channeled surfaces close to modern rivers, consisting of moderate to well sorted gravel, sand, silt and clay, deposited in modern river systems Colluvium: a mixture of rock debris and unconsolidated sediment deposited by mass movement forming aprons at the base of steep slopes Bog: accumulations of degraded organic matter deposited in poorly drained low-lying areas

AMEC Earth & EnvironmentalA Division of AMEC Americas Ltd.Map to Accompany AMEC Report TF8312718

Map Publication Date 2012

Unit A - Till DepositsWell yields range from 2 litres per minute (L/min) to 136 L/min and averaged 29 L/minwith a median value of 18 L/min. Well depths range from 9 metres (m) to 50 m andaveraged 17 m. The available data indicate that on average, wells drilled within Unit Ahave moderate potential yield.

Unit B - Sand and Gravel DepositsWell yields range from 4 L/min to 683 L/min and averaged 102 L/min with a medianvalue of 50 L/min. Well depths range from 9 m to 49 m and averaged 23 m.The available data indicates that wells drilled within Unit B have a moderate to highpotential yield.

SURFICIAL HYDROSTRATIGRAPHIC UNITS