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5.1: Geological Stresses

Difficulty Level: Basic Created by: CK-12
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Vocabulary

compression

compression

Stresses that push toward each other; this causes a decrease in the space that a rock can take up.
confining stress

confining stress

Stress from the weight of material above a buried object; this reduces volume the rock is in.
deformation

deformation

Strain; the change of shape that a rock undergoes when it has been altered by stresses.
fracture

fracture

Break in rock caused by stresses; this happens with or without the movement of material.
shear

shear

Parallel stresses that move past each other in opposite directions.
strain

strain

Deformation in a rock when the stress exceeds the rock's internal strength.
stress

stress

Force per unit area in a rock.
tension

tension

Stresses that pull material in opposite directions.

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Description

Difficulty Level:

Basic

Grades:

6 , 7

Date Created:

Jan 04, 2013

Last Modified:

Jun 16, 2015
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SCI.ESC.352.L.2

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