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Lecture 10

Lecture 10.docx

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David Schneider

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Theory of Plate Tectonics composite of ideas that explain the observedmotion of Earths lithosphere thru mechanismsof seafloor spreadingsubduction whichgenerate continentsocean basinsPlateTectonics1965 J Tuzo Wilson Earth is composed of lithospheric plates thatmove on asthenosphere due to thermalconvection in mantle convection is circulation driven by rising hotmaterial andor sinking cooler material1962 Harry Hess proposed seafloor spreading seafloor moves away from the midoceanicridge due to mantle convection hot mantle rock rises under midoceanic ridgePlateTectonics seafloor rocks mantle rocks be
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