Visualizing strike and dip

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• Visualizing strike and dip

Fig 11.2
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Visualizing folded rocks
Fig 11.3
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Visualizing folded rocks
Fig 11.4 top
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Visualizing folded rocks
Fig 11.4 mid-bottom
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11.1 What do deformed rocks look like?
Fig. 11.9
A geologic map (top) and cross-section (bottom)
of an eroded plunging anticlinal structure
bounded on the east by a steep normal fault.
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Faults
Visualizing faults a normal (dip-slip) fault,
one where the hanging wall goes down relative to
the footwall
Fig 11.8
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Faults
Visualizing faults a reverse (dip-slip) fault,
one where the footwall goes down relative to the
hanging wall
Fig 11.8
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11.1 What do deformed rocks look like?
Visualizing faults thrust fault, a low-angle
(lt45o) reverse (dip-slip) fault
Fig 11.8
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11.1 What do deformed rocks look like?
Visualizing faults strike-slip
faults oblique-slip faults
Fig 11.8
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11.6 How does strength vary in the lithosphere?
Comparison of the strength of oceanic and
continental crusts. In both, strength initially
increases with depth, and the reverse when
plastic flow limit is reached. However,
continental crust shows a sharp if brief increase
of strength in the transition from deep
metamorphic rocks to mantle peridotites.
Fig 11.26
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11.8 How are earthquakes measured?
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11.8 How are earthquakes measured?
Energy comparison of specific earthquake events
to energy release of other significant events.
Fig 11.36