EARTHSC 1G03 Lecture : 12 - Geologic Resources
21 Mar 2013
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Deltas: very fertile areas - good soils; lots of organic content added as river. Geologic resources are valuable materials of geologic origin extracted from the earth. Metallic resources: iron, copper, lead, zinc, gold, silver, etc. Non-metallic resources: sand, gravel, building stone, ground water, fertilizers, etc. Resources are the total amount of geologic material in all deposits, discovered/undiscovered. Reserves are the discovered deposits that can be economically/legally extracted currently. Canada exports 30% of the energy it produces to the u. s. 2/3 of canada"s energy is produced in alberta. Most of canada"s energy consumption is from fossil fuels (65%) Petroleum is crude oil and natural gas: crude oil: liquid mixture of naturally occurring hydrocarbons, natural gas: gaseous mixture of naturally occurring hydrocarbons. Hydrocarbons form from organic matter dead life forms such as plankton that accumulates w/ fine-grained sediment in marine or lake basins. Formed oil and gas migrates into overlying permeable layers that are under low pressure.
