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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

sheeting

Earth science; Geology

A type of jointing produced by pressure release (unloading) or exfoliation.

shear stress

Earth science; Geology

The stress on an object operating parallel to the slope on which it lies.

shear

Earth science; Geology

Rock deformation involving movement past each other of adjacent parts of the rock and parallel to the plane separating them.

shatter cone

Earth science; Geology

A distinctively striated conical structure in rock, ranging from a few centimeters to a few meters in length, believed to have been formed by the passage of a shock wave following ...

shadow zone

Earth science; Geology

A region 100º to 140º from the epicenter of an earthquake in which, due to refraction from below the core-mantle boundary, no direct seismic waves can be detected.

self-exciting dynamo

Earth science; Geology

In reference to the Earth, the suggestion that movements in the fluid core may help initiate the Earth’s magnetic field.

seismoscope

Earth science; Geology

An instrument that merely indicates the occurrence of an earthquake.