112-pp26 - Plateaus (undeformed) 2) Valley and ridge...

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1 GY 112: Earth History Paleozoic 3: Alabama in the Paleozoic UNIVERSITY OF SOUTH ALABAMA Last time we covered… The Paleozoic Part 2 1) Back to Newfoundland 2) Eastern Laurentian Orogenies (Appalachians) 3) Other Laurentian Orogenies (Antler, Ouchita) Laurentia (Paleozoic North America) Laurentia Baltica Middle Ordovician Laurentia (Paleozoic North America) Early Devonian A B S ubduction zo ne I s l a n d r c The Acadian Orogen was more extensive and more intense (metamorphism and lots of igneous intrusions) A B Laurentia (Paleozoic North America) Pennsylvannian B Lastly, along comes Gondwanna and…. …well you get the idea. A B u tu re z o e A B Suture zone Appalachian Provinces 4 Tectonic provinces are identified 1) Plateaus (undeformed) 2) Valley and ridge (folded/faulted) 3) Piedmont (Highly metamorphosed) 4) Blue Ridge (igneous intrusions)
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2 Appalachian Provinces We only see the first 3 in Alabama 1)
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Unformatted text preview: Plateaus (undeformed) 2) Valley and ridge (folded/faulted) 3) Piedmont (Highly metamorphosed) Appalachian Provinces We only see the first 3 in Alabama 1) Plateaus (undeformed) 2) Valley and ridge (folded/faulted) 3) Piedmont (Highly metamorphosed) Appalachian Provinces 1) Plateaus ; 2) Valley and ridge ; 3) Piedmont Todays Agenda The Paleozoic Part 3 (web notes 26) 1) Alabama in the Paleozoic Appalachian Provinces & Alabama (Web notes 26) Alabama Stratigraphy (Paleozoic) 3 Alabama (Early Paleozoic) B Subduction zone S u b d ctio n zo e I s l a r c Cambro-Ordovician Alabama (Mississippian) B Alabama (Pennsylvanian ) Todays Homework 1. Time Chart part 2 due next Friday 2. Form a musical band and name it after your favorite fossil Next Time 1. Plants...
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112-pp26 - Plateaus (undeformed) 2) Valley and ridge...

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