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

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Geology

Bentonite

Earth science; Geology

A clay material composed principally of the mineral montmorillonite. It has a great affinity for fresh water and when hydrated will increase its volume more than seven times. Water/bentoninte ...

Asthenophere

Earth science; Geology

The layer or shell of the Earth below the lithosphere, which is weak and in which isostatic adjustments take place, magmas may be generated, and seismic waves are strongly attenuated. The ...

The combination of two or more atoms by sharing electrons so as to achieve chemical stability under the octet rule. Atoms that form covalent bonds generally have outer energy levels containing three, ...

Bioxidation

Earth science; Geology

The oxidation of elements caused by naturally occurring bio-organisms in rock. Bioxidation is used in the recovery of gold from sulhpide rock by providing the optimum temperature, acidity (pH) and ...

Concretion

Earth science; Geology

A compact mass of mineral matter, usually spherical or disk-like in shape and embedded in a host rock of different composition. They form by precipitation of mineral matter about a nucleus such as a ...

Calving

Earth science; Geology

The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.

Coriolis effect

Earth science; Geology

Force due to the Earths rotation, capable of generating currents. It causes moving bodies to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The ...