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Lecture 22
By thought and dint of hammering,Is the good work done whereof I sing,And a jollier crowd you´ll rarely find,
than the men who chip on earth´s old rind,And often wear a patched behind,
By thought and dint of hammering.
- Andrew C. Lawson
Structural Geology
Webpage for course (daytime)
Webpage for course (nighttime)
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Map quiz
25 (2)24 (2)2322 (2)21 (6)20 (3)19 (5)18 (2)
17 (2)16 (2)1514 (2)
12 (2)
10
8
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As we learned from James Hutton:
Originally strata are:
horizontal layers
younger beds above older ones
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Fig. 18-4, pg. 420
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Sedimentary rocks are deposited in
Flat-lying layers
subsequently
FOLDED
FAULTED
REMOVED THROUGH EROSION
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Folds
anticline syncline
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Fig. 18-8 A-B
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anticlinesand
synclines
Fig. 17-3 A
Fig. 17-3 B
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How to identify eroded foldsRelative age
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Kinds of mountains
Fault Block
Fold and Thrust
Volcanic
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Faults
Hanging wall
Foot wall
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Faults
Hanging wall
Foot wall
Hanging wall
Foot wall
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Normal fault
Reverse fault
Fig. 17-9 A
Fig. 17-9 B
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How to identify type of faultRelative age
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Thrust faults
Fig. 17-9 B
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Kinds of mountains
Fault Block
Fold and Thrust
Volcanic
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weathering
Fig. 8 B-C
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Fig. 8 C-D
Erosionalunconformity
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Folds
anticline syncline