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Unformatted text preview: Growth of silicate minerals-look up defnition of magma-if water enters solid, it melts-pressure-temperature-water-molten rock on cooling forms silicate minerals in a specific order-BOWEN REACTION SERIES**VERY IMPORTANT-1300 degrees magma ten cools slowly-1 st mineral formed is magnesium silicate (Olivine)-high temp stable mineral disappears to form-then Pyroxene disappears to form-then drop temp more and Amphibole to form-then Biotite-DISCONTINUOUSj-CONTINUOUS-when temp drops, goes from Ca and is replaced with Na(mineral is still there, but is just being exchanged)-stable minerals at botton of reaction series=alkali feldspar, muscovite, quartz...
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- Fall '08