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15 Cards in this Set
- Front
- Back
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compressional stress
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Squeezing laterally
Shorter Horiz. Thicker Vertical |
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Tensional/ Extentional
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lengthen horz. shorten, vertic.
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Shear Stress
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Rocks move past eachother. Distorted form original position
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Strike
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Always with respect to North. To tell where a rock is in space. STright line cutting across and where its pointing.
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Dip
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Which way water would run down
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Folds
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Anticline and Syncline
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Anticline
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Lower case n shaped. Rocks are upward. Oldest at center b/c of weathering
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Syncline
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U shape. bend downward. Youngest at center.
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limb
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sides of fold
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Monocline
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only one limb. occurs near a fault.
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Plunge
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direction and angle of inclination of the nose of an anticline. towards nose = anticline. away from nose- syncline
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domes
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upside down bowl, youngest outside, anticline
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basins
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bowl shape, youngest at center, syncline
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recumbent folds
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tipped over due to stress
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joints
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fractures along which no movement has occured
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