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Definition
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Definition
| the change in shape or size, or both, in response to stress |
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Definition
| pushed together or squeezed form opposite directions |
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Definition
| caused by forces pulling away from one another in opposite directions |
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Definition
| when stresses act parallel to a plan |
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Definition
| deformed material recovers its original shape after the stress is reduced or removed |
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plastic manner
will ben while under stress and doesn't return to its original shape |
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Definition
| will fracture at stresses higher than its elastic limit, or once the stresses are greater than the strength of the rock |
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Definition
uses standardized symbols
produced from the field map for a given area.
plots the type and districution of rock units, structual features |
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Definition
| the compass direction of a line formed by the intersection of an inclined plane with a horizontal plane |
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Definition
| the compass direction in which the angle of dip is measured |
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Definition
| measured downward from the horizontal plane to the bedding plane |
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Definition
| represents a vertical slice through a portion of Earth |
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Definition
| bends or wavelike features in layered rock |
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Definition
an upward arching fold
rock layers dip away from the hinge line of the fold |
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a troughlike fold
layered rock usually dips toward the synfline's hinge line |
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Definition
| an imaginary plane containing all of the hinge lines of a fold |
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Definition
| folds in which the hinge lines are not horizontal |
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Definition
| a structure in which the beds dip away from a central point |
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Definition
| the beds dip toward a central point |
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Definition
| have limbs that dip gently |
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Term
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Definition
| one in which limbs are nearly parallel to one another, implies larger shortening strain or shear strain |
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Definition
| if the axial plane is inclined to such a degree that the fold limbs dip in the same direction |
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| are overturned to such an extent that the limbs are essentially horizontal |
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Definition
| essentially no shear displacement occurs, a fracture or crack in bedrock is called this |
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Definition
| joints are oriented approximately parallel to one another |
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| fractures in bedrock along which sliding has taken place |
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Definition
| movement is parallel to the dip of the fault surface |
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Term
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Definition
| indicates horizontal motion parallel to the strike of the fault surface |
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Definition
| has both striek slip and dip slip components |
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Definition
| side of the fault above the inclined fault surface |
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Definition
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Definition
| the hanging wall block has moved down relative to the footwall block |
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Definition
| the hanging wall block has moved up relative to the footwall block |
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Definition
| a reverse fault in which the dip of the fault plane is at a low angle or even horizontal |
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Definition
| a fault where the movement is predominantly horizontal and therefore parallel to the strike of the fault |
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Term
right-lateral fault
left lateral fault |
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Definition
sees ground displaced to the right
sees ground displaced to the left |
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