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GEOL 325: Appalachian Basin University of South Carolina Spring 2005. Appalachians – Geology at Work. Professor Chris Kendall EWS 304 [email protected] 777.2410. Appalachian Basin. Field Trip Route. Appalachian Mountains. After Nasa.

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GEOL 325: Appalachian BasinUniversity of South CarolinaSpring 2005

Appalachians – Geology at Work

Professor Chris Kendall

EWS 304

[email protected]

777.2410



Field trip route
FieldTripRoute




& Deposition

ROCK CYCLE


Rock Cycle & Plate Tectonics

After Dennis. Tassa


The Earth has a molten interior on which the crust and mantle float

Crust 3-70 km

Mantle 2900 km

Core 3486 km


Mosaic of Drifting Rigid Plates mantle float

After

Dennis. Tassa


Appalachians exhibit wilson cycle
Appalachians exhibit Wilson Cycle mantle float

  • Plate tectonic theory divides earth’s crust into plates

  • Plates diverge apart or rift & a new ocean basin forms

  • Plate motion reverses & convergence causes collision, & mountain building

  • The Wilson Cycle records plate motion opening & closing of ocean basins in the rock record


Appalachians
Appalachians mantle float


After Lynn S. Fichter mantle float

Pre-Cambrian

Cambrian

E. Ordovician

L. Ordovician

L. Devonian

Mississippian

Pennsylvanian

Silurian & E. Devonian

Permian


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float



After Lynn S. Fichter mantle float


Ordovician Margin of Appalachians mantle float

After Lynn S. Fichter


Appalachian basin e ordovician
Appalachian Basin – E Ordovician mantle float

After Ron Blakey


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


Late Silurian Early Devonian Margin of Appalachians mantle float

After Lynn S. Fichter


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


Devonian on the Craton! mantle float

After Lynn S. Fichter


Devonian on the Craton! mantle float

After Lynn S. Fichter


Catskills – Delta Margin mantle float

After Lynn S. Fichter


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


Appalachian basin early devonian
Appalachian Basin – Early Devonian mantle float

After Ron Blakey


After Lynn S. Fichter mantle float


Mississippian Pocono Formation mantle float

After Lynn S. Fichter


Appalachian basin late mississippian
Appalachian Basin – Late Mississippian mantle float

After Ron Blakey


Appalachian basin pennsylvanian
Appalachian Basin - Pennsylvanian mantle float

After Ron Blakey


Appalachian basin1
Appalachian mantle floatBasin


Gulf of carpentaria
Gulf of Carpentaria mantle float

After NASA


Appalachian basin permian
Appalachian Basin - Permian mantle float

After Ron Blakey


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


After Lynn S. Fichter mantle float


Rock Cycle mantle float

After Dennis. Tassa


Appalachian mantle float

Cycle

After Lynn S. Fichter


Appalachian cycle
Appalachian Cycle mantle float

  • Cambrian & Early Ordovician Extension

  • Late Ordovician, Silurian & Devonian collision

  • Mississippian quiescence & then the initiation of further collision

  • Pennsylvanian and Permian Mid continent Mountain chain

  • Mesozoic & Cenozoic Extension of Atlantic margin


Appalachians1
Appalachians mantle float


Lecture ends
Lecture Ends!! mantle float

  • And so to lunch


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