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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
Extrusive volcanic rocks
Earth science; Geology
Magma that erupts onto the surface is called lava. It cools very quickly because the temperature at the surface is relatively low, and crystals will probably cease growth because the liquid is ...
Volcanic glass
Earth science; Geology
Natural glass produced by the cooling of molten lava, or some liquid fraction of it, too rapidly to permit crystallization. Examples are obsidian, pitchstone, tachylyte, and the glassy groundmass of ...
Volcanic plains
Earth science; Geology
Basaltic lava plains are the most widespread and voluminous features on Venus. The plains have been compared to the huge flood basalts on the Earth and the lunar Maria, but are much more extensive.
Weathering
Earth science; Geology
The process by which Earth materials change when exposed to conditions at or near the Earth's surface and different from the ones under which they formed. compare decomposition , disintegration .
Wind streaks
Earth science; Geology
Dark and light streaks thought to be caused by the removal of a thin veneer of dust, revealing a darker surface beneath.
Volcanic shields
Earth science; Geology
A volcano in the shape of a flattened dome, broad and low, built by flows of very fluid lava.
Volatile elements
Earth science; Geology
A chemical element that exists in a gaseous state at relatively low tempertures.
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