Geol 101 Plate Tectonics continues

Geol 101 Plate Tectonics continues - Geol 101 Plate...

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Geol 101 Plate Tectonics Continues 13/09/2007 12:46:00 Review Where would one expect to find the oldest oceanic lithosphere on any given  lithospheric plate? o Near the continent, the centers of the oceans have high crust so the  centers are high, hot and thin and in the middle of the ocean it’s think  and cold From your understanding of isostasy, determine which kind of wood is the  most dense? o Rosewood, the key is to look at which piece of wood is floating the  lowest in the water verses the over all thickness of the wood Geologist hypothesize that the primary force that drives plate motion comes  from: o Subducting Plates Areas of continental crust are higher than areas of oceanic crust because  continental crust is: o Thicker and less dense than oceanic crust Plate Boundary Interactions Three end-members o Divergent o Convergent o Transform Two types of lithosphere (oceanic and continental) Fig 2.10 Plate Margins and How They Form: Divergent margin (spreading center)     : magma rises to form new oceanic crust 
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Geol 101 Plate Tectonics continues - Geol 101 Plate...

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