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28 Cards in this Set
- Front
- Back
Stress definition |
Force is applied to area |
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Strain |
Resulting change is shape, orientation,or location |
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Types of deformation |
Elastic, brittle, and ductile |
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Ductile deformation structures and level of confining pressure |
Foliations and folds High pressure |
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What kind of fold is this? |
Syncline |
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Anticline |
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What type of fold? |
Monocline |
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Identify |
Non plunging vs plunging |
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Brittle deformation structures and confining pressure level |
Joints and faults, low pressure |
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Joints |
Fractures along which no appreciable displacement has occurred although some joints have random orientation most occur in a roughly Parallel Group |
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Faults |
The former brittle deformation leads fracturing and displacement of Earth's crust, break in rock |
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Fault scarp |
A cliff created by movement along a fault. It represents the exposed surface of the fault prior to modification by weathering or erosion |
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Reverse fault |
hanging wall moves up result of compression |
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Yeah strike slip fault |
A fault along Which movement occurs horizontally, not up and down |
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Footwall block |
The rock surface below a fault |
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Hanging wall block |
The rock surface immediately above a fault |
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Three types of differential stress |
Compressional tensional and shear |
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Compressional stress |
Differential stress that squeezes a rock mass as if it's placed in a vise, associated with convergent plate boundaries |
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Tensional stress |
Differential stress that pulls apart or elongates Rock bodies |
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Strain |
An irreversible change in the shape and size of a rock body caused by stress |
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Shear stress |
Differential stress that causes the rock to Shear which involves the movement of one part of Iraq passed another causes large segments of crust to slip horizontally past each other |
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How is brittle deformation different from ductile deformation |
Brittle brakes ductile bends |
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Deformation |
General term for the processes of folding faulting shearing compression or extension of rocks as a result of various Natural Forces |
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Four factors that affect Rock strength and how they deform |
Temperature, confining pressure, rock type, time |
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Normal fault |
When hanging wall drops down, forces pulling side apart |
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How is a reverse fault different from a thrust fault |
A thrust fault is a low-angle reverse fault |
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How do you figure out if a strike slip fault is Right lateral or left lateral |
By what block is coming towards you if the left block is like coming towards you it's love lateral if vice versa |
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What kind of plate tectonic setting might you find strike slip fault |
Transform boundaries |