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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.

Contributors in Geology

Geology

Incised

Earth science; Geology

A term used to describe down-cutting (downward erosion) by a stream. Incision deepens and often steepens the stream channel.

Gabbro

Earth science; Geology

A coarse-grained igneous rock, chemically equivalent to a basalt.

Fluvial

Earth science; Geology

Term used to describe river or stream-related features or processes. Fluvial deposits are sediments deposited by the flowing water of a stream.

Garnet

Earth science; Geology

Family of silicate minerals containing varying amounts of aluminum, iron, magnesium, and calcium. Schist and gneiss often have tiny, glassy red garnet dodecahedrons.

Great Blue Hole

Earth science; Geology

The Great Blue Hole is a large underwater sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll 60 miles (100 kilometers) from the mainland of Belize City. The ...

Lichenometry

Earth science; Geology

A dating method that uses the growth rate of certain lichen species as an indicator of the age of the surface the lichen is growing on.

Gondwana

Earth science; Geology

A continent formed in the Southern Hemisphere during the Late Paleozoic. It included most of South America, Africa, India, Austrailia, and Antarctica.

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