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Physical geography
Industry: Geography
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Physical geography
attapulgite
Geography; Physical geography
A clay used in salt water drilling muds to improve the mud's carrying capacity, also called salt gel.
quagmire
Geography; Physical geography
Quagmire is a soft marshy area of land that usually gives in under the feet (a bog). Later on, in the late 18th century, quagmire also took on an additional meaning: a difficult or awkward situation.
c horizon
Geography; Physical geography
beneath the B-horizon and above the bedrock; consisting of weathered rock
upwelling
Geography; Physical geography
An upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually ...
migration
Geography; Physical geography
properly, any movement of a living organism across space, or between locations. In geography, most commonly applied to population movements. It can be used to describe daily and seasonal movements ...
geologic time
Geography; Physical geography
The total time involved since formation of the earth to the present time.