MARS 1010 Plate Tectonics

MARS 1010 Plate Tectonics - MARS 1010: Plate Tectonics...

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MARS 1010: Plate Tectonics 08/10/2007 10:14:00 From Wiggles on the seismograph, what sort of fault is involved with each  earthquake: Normal Faults: extensional (on piece of crust moves away from the other and  slips down relative to the other) Reverse Faults: compressional fault (when two pieces of crust are forced  together, one moving on top of the other). Transform Faults: strike-slip.  Instead of vertical movement, a strike slip fault  moves horizontally.   o These types of faults are not distributed equally around the world.  Divergence implies the “upwelling” of magma under the surface Convergence implies “downwelling” of parts of the lithosphere. Plate Tectonic Theory: 1)  The Lithosphere is composed of numerous “plates” 2)  The brittle lithospheric “plates” float isostatically on top of the deformable  asthenosphere. 3)  The deformable asthenosphere undergoes convection driven by heat from 
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MARS 1010 Plate Tectonics - MARS 1010: Plate Tectonics...

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