intro_to_geo_6 - Plate tectonics cont Transform faults are...

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Plate tectonics cont Transform faults are nec. The mid-ocean ridge is segmented, with adjacent segments offset laterally and connected by fractured segments of crust In the region between two offset segments, the direction of motion on either side of a fracture is mutually opposed (each side being dominated by the push of volcanism emanating from the ridge segment on its side of the fracture) Hot spot and their track Very hot rock from deep in the mantle rises at the hot spot and produces abundant volcanic material Hot spots are relatively stable points, whereas the plates that overlie them, and which bear the associated volcanoes, are moving Over periods of millions of years, as the plate slides over the hot spot, extinct volcanoes are ferried in the direction of plate motion, while new volcanoes are formed at the hot spot Continental rift Continental rifts appear as elongate valleys bounded on either side by faults Volcanism occurs along the rift as asthenosphere rises to accommodate the
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This note was uploaded on 04/08/2011 for the course GEOL 2001 taught by Professor Babaie during the Winter '09 term at University of Georgia Athens.

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intro_to_geo_6 - Plate tectonics cont Transform faults are...

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