20 Terms
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Geology
The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.
Industry: Earth science
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Geology
Eruption
Earth science; Geology
Occurs when solid, liquid, or gaseous volcanic materials are ejected into the Earth's atmosphere or surface by volcanic activity. Eruptions may occur as quiet lava flows or violent explosive events.
Fan
Earth science; Geology
A fan-shaped sedimentary deposit that forms where rapidly flowing water enters a relatively open, flat area. As water slows down, it deposits sediment and gradually builds a fan. See alluvial fan.
Ephemeral stream
Earth science; Geology
A stream drainage that is usually dry and fills with water only during brief episodes of rainfall. Many desert streams ephemeral.
Extrusive
Earth science; Geology
Igneous rocks that cool and solidify rapidly at or very near the Earth's surface. Also known as volcanic rocks.
Epicentre
Earth science; Geology
The point on the Earth's surface that is directly above the focus of an earthquake.
Formation
Earth science; Geology
A rock formation is a body of rock of considerable extent with distinctive characteristics that allow geologists to map, describe, and name it.
Fossil fuel
Earth science; Geology
General term for any hydrocarbon used as fuel, including coal, oil, natural gas, and oil shale.
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