112-pp36 - 1 GY 112: Earth History Cenozoic Geology 2:...

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Unformatted text preview: 1 GY 112: Earth History Cenozoic Geology 2: Tectonics UNIVERSITY OF SOUTH ALABAMA Last Time Cenozoic Geology 1 A) Cenozoic Ocean currents B) Cenozoic Tectonic Events C) Messinian Salinity Crisis Cenozoic Currents Cenozoic Deep Ocean Currents Land Bridges Isthmus of Panama North and South American mammals developed separately Pliocene uplift of isthmus allowed for exchange of terrestrial fauna Himalayan Mountains Miocene clastic sediments overlying Eocene limestone Most uplift during last 15 million years 2 Australia Australia separates from Gondwanna (Antarctica) in the Eocene. No land bridges A) Messinian Salinity Crisis (Web notes 35) B) Cenozoic Tectonics (Webnotes 36) More orogenies (Laramide) Western North American tectonic provinces Plateaus and canyons Todays Agenda Messianian Salinity Crisis Geophysical analysis of the Mediterranean Sea yielded surprising results Messianian Salinity Crisis Geophysical analysis of the Mediterranean Sea yielded surprising results Messianian Salinity Crisis Geophysical analysis of the Mediterranean Sea yielded surprising results Salt diapirs Messianian Salinity Crisis Geophysical analysis of the Mediterranean Sea yielded surprising results 3 Cenozoic Tectonic Events Cordilleran region Laramide orogeny New tectonic style Cenozoic Tectonics First a recap: The tectonic style in the Mesozoic is best described as accretionary Mesozoic Tectonics Jurassic Mesozoic Tectonics Cretaceous Mesozoic Tectonics Cretaceous Mesozoic Tectonics 4 Cenozoic Tectonics But thats not all. In the southwest during the Cenozoic But thats not all....
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This note was uploaded on 02/04/2012 for the course GLY 112 taught by Professor Haywick during the Spring '12 term at S. Alabama.

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112-pp36 - 1 GY 112: Earth History Cenozoic Geology 2:...

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