Geology

Geology

The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.

Industry: Earth science

Add a new term

Contributors in Geology

Become a Contributors

Geology

Paleozoic

Earth science; Geology

An era of geologic time, from the end of the Precambrian to the beginning of the Mesozoic Era, or from about 570 mya to about 225 mya.

Outwash

Earth science; Geology

Sand and gravel deposited by meltwater streams in front of the end moraine to the margin of an active glacier.

Said of those minerals than enter into the composition of rocks, and determine their classification. The more important rock forming minerals include quartz, feldspars, micas, amphiboles, pyroxenes, ...

Roche limit

Earth science; Geology

The Roche limit was first described by Edouard Roche in 1848. The Roche limit is the closest distance an object can come to another object without being pulled apart by tidal forces. If a planet and ...

Sediment

Earth science; Geology

Generally, solid, fragmented material transposrted and deposited by wind, water, or ice, chemically precipitated from solution, or secreted by organisms, and that forms layers of loose, ...

Schist

Earth science; Geology

A strongly foliated, coarsely crystalline metamorphic rock, produced during regional metamorphism, that can readily be split into slabs or flakes because more than 50% of its mineral grains are ...