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19:37 Dec 6, 2011 |
Spanish to English translations [PRO] Science - Surveying / Mapa Metalogenetico | |||||||
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| Selected response from: Benjamin A Flores Local time: 12:42 | ||||||
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4 +2 | Porphyritic Andesite |
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Porphyritic Andesite Explanation: Porphyritic Andesite core.ecu.edu/geology/harper/igneous/display_new.cfm?ID=135+ items – Name, Porphyritic Andesite. Texture, Porphyritic ... Chemical Composition Intermediate Mineral Composition Sodium - Calcium Plagioclase, Pyroxene, Hornblende Rocks in Hand Specimen www.earth.ox.ac.uk/~oesis/rocks/ign4.htmlPorphyritic andesite lava. Andesite is a volcanic rock intermediate in composition between basic and acid. It is lighter coloured than basalt. It is one of the typical ... Explain how a porphyritic andesite would form wiki.answers.com › ... › Jobs & Education › Education › College DegreesI believe that porphyritic andesite is formed from volcanic ash and bits and pieces of minerals that eventually become ejected from the volcano. How the andesite ... Explain how a vesicular porphyritic andesite might have formed ... answers.yahoo.com › ... › Earth Sciences & Geology 1 answer - 13 May 2007 Reference: http://en.wikipedia.org/wiki/Andesite Reference: http://en.wikipedia.org/wiki/Porphyritic |
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