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Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Geology

brittle limit

Earth science; Geology

The stress limit beyond which a material fractures, rather than behaving in a ductile or elastic fashion.

calcarenite

Earth science; Geology

A sandstone in which the sand-sized grains are calcite.

capillary water

Earth science; Geology

Water in the zone of aeration held to soil particles by surface tension of the water molecules for each other and for the soil particles.

carbonate conservation depth

Earth science; Geology

The water depth below which the calcium carbonate produced in the ocean is completely dissolved. There is no calcium carbonate deposition below this level.

cataclastic metamorphism

Earth science; Geology

Takes place in an environment where intense pressure due to shearing is common, as in a major fault zone.

chain reaction

Earth science; Geology

A self-sustaining nuclear reaction, made possible when neutrons released by fission of some atoms in a nuclear reactor strike other atoms, causing them to fission as well.

chalcedony

Earth science; Geology

A cryptocrystalline form of quartz, microscopically fibrous with waxy luster. May be transparent or translucent, and with a uniform tint of white, gray, pale blue, and, less ...