GEOL 1001 : Exam 2 Review

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15 Mar 2019
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And as they move away they make these cracks. Which kind of plate boundary is not associated with fault : transform. Difference between felsic and mafic rocks: felsic are lighter colored, felsic is feldspar and silicon, mafic is iron and , *know the color difference and the compositional difference. Intrusive and course grained: cools very slowly under different conditions, rhyolite is nearer to the surface and cools faster, differences between composition as well as texture. Definition for partial melting: like a chocolate chip cookie. If you don"t like how it turned out and you start out the oven from room-450degrees then the chocolate chip will melt faster than the cookie itself, lower melting point. This relates to rocks beneath the surface: crust being subducted, then obviously number of different minerals present in the oceanic crust. Some will melt, and some will cool and stay where they are.