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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

Ground ice

Earth science; Geology

Wedge-shaped, foliated ice produced in permafrost, occurring as a vertical or inclined sheet, dike or vein tapering downward, and measuring form a few mm to as much as 6 metres wide and from 1 metre ...

Horn

Earth science; Geology

The sharp spire of rock formed as glaciers in several cirques erode into a central mountain peak.

Hornblende

Earth science; Geology

The most common mineral of the amphibole group (Ca,Na) 2-3 (Mg,Fe + 2 ,Fe +3 ,Al) 5 (Al, Si) 8 O 22 (OH) 2 . It has a variable composition, and may contain potassium and appreciable fluorine. It ...

Hubble Space Telescope (HST)

Earth science; Geology

A 98 inch, Earth orbiting reflecting space telescope which is equipped with infrared, x-ray and other electromagnetic sensors. Named after famous American astronomer, Edwin Hubble.

Sir William Herschel

Earth science; Geology

(1738-1822) British astronomer. He built a reflecting telescope of superior quality and with it discovered planet Uranus. He also discovered some of the satellites of Uranus and of Saturn.

Edmond Halley

Earth science; Geology

(1656-1742) English astronomer. In 1758, he accurately predicted the return of a comet previously observed in 1531, 1607, and 1682. The body was subsequently named Halley's Comet.

Ground water

Earth science; Geology

That part of the subsurface water that is in the zone of saturation, including underground streams. Loosely, all subsurface water as distinct from surface water.

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