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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 GEOL 325 Lecture 22 Appalachians Appalachian Basin GEOL 325 Lecture 22 Appalachians Field Trip Route GEOL 325 Lecture 22 Appalachians Appalachian Mountains GEOL 325 Lecture 22 Appalachians After Nasa Appalachian Basin – Ridge & Valley & Cumberland Plateau After Nasa GEOL 325 Lecture 22 Appalachians & Deposition ROCK CYCLE GEOL 325 Lecture 22 Appalachians Rock Cycle & Plate Tectonics GEOL 325 Lecture 22 Appalachians 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 GEOL 325 Lecture 22 Appalachians Mosaic of Drifting Rigid Plates After Dennis. Tassa GEOL 325 Lecture 22 Appalachians Appalachians exhibit Wilson Cycle 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 GEOL 325 Lecture 22 Appalachians Appalachians GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Appalachian Basin - Cambrian GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians Ordovician Margin of Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Appalachian Basin – E Ordovician After Ron Blakey GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Late Silurian Early Devonian Margin of Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Devonian on the Craton! After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Devonian on the Craton! After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Catskills – Delta Margin After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Appalachian Basin – Early Devonian After Ron Blakey GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Mississippian Pocono Formation After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Appalachian Basin – Late Mississippian After Ron Blakey GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians Appalachian Basin - Pennsylvanian After Ron Blakey GEOL 325 Lecture 22 Appalachians Appalachian Basin GEOL 325 Lecture 22 Appalachians Gulf of Carpentaria GEOL 325 Lecture 22 Appalachians After NASA Appalachian Basin - Permian After Ron Blakey GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians After Lynn S. Fichter GEOL 325 Lecture 22 Appalachians Rock Cycle After Dennis. Tassa GEOL 325 Lecture 22 Appalachians Appalachian Cycle GEOL 325 Lecture 22 Appalachians After Lynn S. Fichte Appalachian Cycle 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 GEOL 325 Lecture 22 Appalachians Appalachians GEOL 325 Lecture 22 Appalachians Lecture Ends!! And so to lunch GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians GEOL 325 Lecture 22 Appalachians
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