Structures2Worksheet (1).docx

1 under deformation rocks will return to nearly their

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Under ______________________ deformation, rocks will return to nearly their original size and  shape when stress is removed. In contrast, under __________ and brittle deformation, rocks will experience a permanent  change in size and shape (by folding and faulting, respectively). When we are looking at faults (formed by brittle deformation processes), we can use marker beds to determine how the fault has slipped and thus to classify the fault as: 1. Dip-dlip A. Reverse/thrust B. Normal 2. Strike-slip An anticline or syncline, on the other hand, shows evidence of ________________ deformation. Folds can be symmetrical, asymmetrical, or overturned. We determine how to classify a fold by  looking at the angle of the _______________________ which intersects the hinge. One last piece of review-strike and dip. _______________________ is the compass direction of a line produced by the intersection of an inclined rock layer or fault with a horizontal plane. _______________________ is the angle of inclination of that plane from horizontal.
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