Search for "geology"

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Geography

Geography is the study of places, Earth’s physical features and environmental phenomena. Geographers also examine human populations and their impact on the natural world. This collection from The Canadian Encyclopedia covers a wide range of topics in both physical and human geography. These topics include geographic regions, sustainable development, and Indigenous populations.

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Plate Tectonics

Plate tectonics is the theory proposing that Earth’s outer rocky shell is divided into seven major and several smaller rigid plates. Forces generated by heat losses from the planet’s interior constantly move the plates about. Plate movements, ongoing over millions of years (see Geological History), open and close ocean basins, generate volcanoes, raise mountains, facilitate accumulation of mineral and petroleum deposits, and influence evolution and climate change. Friction between plates prevents steady motion and stores energy that is released in sudden movements, causing earthquakes.

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Mineral Resources

Minerals are naturally-occurring, homogeneous geological formations. Unlike fossil fuels, such as coal, oil and natural gas, minerals are inorganic compounds, meaning they are not formed of animal or plant matter.