formation of the appalachian mountains. a plate tectonic...
TRANSCRIPT
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Formation of the
Appalachian Mountains.
A plate tectonic history.
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Figure 10.2: Global paleogeography for the
Cambrian period
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Figure 10.14: Global paleogeography for the
Ordovician period
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Figure 10.19: Global paleogeography for the
Early Devonian period
Laurussia
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Figure 10.28: Global paleogeography for the
Late Permian Period
Laurussia
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Sequence of
events
responsible
for the
Taconic
orogeny
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Sequence of events responsible for the
Taconic orogeny
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Figure 10.15 Appalachian terranes
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Satellite image of
the southern
Appalachians;
false color.
Smoky Mtns.
(=Blue Ridge)
Thrust sheets
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Satellite image
of central
Appalachians
Potomac River
Shenandoah
or Great
Valley
Valley and
Ridge
Blue Ridge
WV
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Sideling Hill Syncline on I-68, Maryland
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Anticlinorium formed by thrust sheet.
Syncline formed by sag between thrust
sheets.
Sideling Hill
syncline
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Modern topography formed from Cenozoic
uplift and erosion
Cretaceous
Paleocene
Oligocene
Holocene
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North America Through Time
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Cambrian
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Middle
Ordovician
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Late
Ordovician
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Silurian
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Early
Devonian
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Late
Devonian
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Early
Carboniferous
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Late
Carboniferous
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Permian
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Triassic
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Early
Jurassic
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Middle
Jurassic
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Late
Jurassic
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Early
Cretaceous
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Middle
Cretaceous
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Late
Cretaceous