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Ch1-1 Earth Science

QuestionAnswer
Stress The forces that push and pull on the Earth's crust, causing its deformation
Crust The surface layer of the Earth
Deformation In geology, any change in the original shape or volume of rocks
Compression The type of stress that squeezes rocks together
Tension The type of stress that pulls rocks apart
Shearing The type of stress that pushes rocks of the crust in two opposite, horizontal directions
Fracture Crack of Break
Volume The amount of space an object takes up
Mass The measure of the amount of matter in an object
Density The amount of matter in a given space; the mass per unit volume
Fault A break or crack along which rocks move
Hanging Wall A block of rock above the fault
Foot Wall A block of rock below a fault
Normal Fault A fault in which the hanging wall moves down relative to the foot wall (caused by tension)
Reverse Fault A fault in which the hanging wall moves up relative to the foot wall (caused by compression
Thrust Fault A reverse fault in which the hanging wall slides over the foot wall (caused by compression)
Lateral Fault A fault along which blocks move horizontally past each other (caused by shearing)
Fault-Block Mountains A mountain formed by blocks of rock uplifted by normal faults
Rift Valleys A valley formed when the block of land between two normal faults slides downward
Fold A bend in a rock
Anticline An upward fold in a rock
Syncline A downward fold in a rock
Created by: MidnightVirus
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