8 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
durable crust
Earth science; Geology
An outer rind or crust formed on a rock. Durable crusts form when rock chemically reacts with water and possibly atmospheric dust, producing a hard outer surface that resists weathering.
earthquake
Earth science; Geology
A sudden ground motion or vibration of the Earth. Produced by a rapid release of stored-up energy along an active fault.
ejecta
Earth science; Geology
Material that is thrown out by a volcano, including pyroclastic material (tephra) and, from some volcanoes, lava bombs.
eocene
Earth science; Geology
An epoch of the Tertiary period, spanning the time between 54.8 and 33.7 million years ago.
eolian
Earth science; Geology
Term describing the process of wind erosion, transport, and deposition, and wind-created deposits and structures such as sand dunes.
eon
Earth science; Geology
The primary division of geologic time which are, from oldest to youngest, the Hadean, Archean, Proterozoic, and Phanerozoic eons.
