Geology notes march 4

Geology notes march 4 - -facies-pathways in pressure and...

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March 4 th GEO Notes Metamorphism -changes in heat, pressure, and the chemical environment of rocks -alters mineral composition -alters textures of crystals -causes- tectonics (cont-cont, collision, subduction, zone magmatism) -types- -grade, mineral assemblages
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Unformatted text preview: -facies-pathways in pressure and temperature-pressue and temperature increase with depth in all areas-rate 20 to 60 degrees C per km 3 types of metamorphism-normal region-high pressure regional-contact...
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