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TitleBedrock hydrogeology / Hydrogéologie de la roche de fond
DownloadDownloads
AuthorCanada Surveys and Mapping Branch
SourceHydrological Atlas of Canada 31, 1978, 1 sheet
Year1978
PublisherCanada Surveys and Mapping Branch
Documentserial
Lang.English; French
Maps1 map
Map Info.hydrographic, 1:10,000,000
ProjectionLambert Conformal Conic Projection
Mediapaper; on-line; digital
File formatpdf; jpg
ProvinceBritish Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Subjectshydrogeology; environmental geology; hydrology; bedrock geology; groundwater
Abstract(unpublished)
The map shows the location and distribution of bedrock aquifers. The quality is expressed by the total dissolved solids in parts per million and the quantity is expressed in litre per second. Bedrock deposits consist of sedimentary, metamorphic, and igneous rocks; Canada possesses all three types. Sedimentary rocks have a much greater aquifer potential than the other two types of bedrock, but because of their depth, they are less accessible and less economical to use than aquifers in the unconsolidated surficial materials. Metamorphic and igneous rocks, which have low porosity and permeability, are, in general, poor aquifers and expensive to exploit, although locally, fracturing and shear zones may provide reasonable groundwater supplies on a domestic or slightly larger scale. It must be realized that both quantity and quality of groundwater can vary markedly from one location to another over very short distances. Because of scale limitations, areas of salt-water intrusion along marine coastlines ha
GEOSCAN ID295295