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Definition
| general term for the processes of folding, faulting, shearing, compression ore extension of rocks as the result of various natural forces |
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Definition
landforms formed by the folding of rock layers - rock layers are squeezed from sides
-examples: Appalachian Mountians, Himalayas, Urals |
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| Upwarped Mountains (Dome Mountains) |
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Definition
landforms formed by focus pushing up the Earth's crust but not erupting onto the surface
examples: Black Hills of South Dakota, Adirondak Mountains in New York |
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Definition
formed when large blocks of the earth's crust are lifted up and tilted by faulting
-examples: Grand TEtons in Wyoming, Sierra Nevadas in California |
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Definition
a force that acts on rock to change its shape or volume
usually deform by folding,flowing or fracturing |
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Definition
| the change in shape or volume of a body of rock as a result of stress |
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Definition
| a type of stress that squeezzes the rocks of the crust and makes them move closer together |
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Definition
| a type of stress that pulls on the crustal rocks causing them to stretch out over a larger area |
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Definition
| a type of stress that pushes crustal rocks in two opposite directions causing rocks to twist or tear apart |
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Definition
| a type of fold formed when upfolding or arching of rock layers |
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Definition
| a type of fold formed by downward folds or troughs |
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Definition
| a type of fold which are large,step-like folds in horizontal sedimentary rock |
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Definition
| a type of fault when tension forces is acting on a fault and the rock above the fault surface moves downward in reation to rock below the fault surface |
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Definition
| a type of fault when compression forces is acting on a fault and the rocks above the fault surface are forced up and over the rocks below the fault surface |
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Definition
are reverse faults withdips of less than
45 degrees |
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Definition
| a type of fault when shearing forces cause blocks of rock to side horizontally past each other |
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Definition
| the different ways that a mountain belt can be made |
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Definition
| a valley formed by the downward displacement of a fault-bounded block |
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Definition
| an elongated, uplifted block of crust bounded by faults |
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Definition
| a large wedge-shaped mass of sediment that accumulates in subduction zones |
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Definition
| when fragments collide with a continental plate and become stuck to or embedded into the continent |
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Definition
| a crustal block surrounded by faults, whose geologic history is different from the histories of neighboring crustal blocks |
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Definition
| concept of a floating crust in gravitational balance |
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Definition
| process of establishing a new level of gravitational equilibrium |
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