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- ZIP
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- Publisher-reported update
- 2017-01-26
Surficial hydrogeological materials show the distribution of sediment deposited in glacially influenced environments. Most drinkable groundwater resources in Canada occur in shallow surficial-sediment aquifers. Surface sediments, such as gravel, sand, silt and clay, or mixed sediments, are an important control on vegetation patterns and surface-water recharge to aquifers. In addition, areas with significant thicknesses of sand and gravel-large moraines and buried valleys-often host prolific aquifers.
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- English, French
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