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Metamorphic - General Rock Names Based on Bulk Composition
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- 1Pelite(Metamorphic mudstone)
General term for a metamorphic rock derived from a clay-rich shales. Highly aluminous and containing abundant micas, chlorite and other aluminous minerals. - 2Psammite(Metamorphic sandstone)
Usually contains abundant quartz with subordinate feldspars, micas, etc. - 3Metabasite(Metamorphic basic igneous rock)
Contains abundant ferromagnesian minerals (amphiboles, pyroxene, chlorite) and Ca/Na bearing Al-silicates (plagioclase, epidote. - 4When would these terms be used?When describing metamorphic rocks on a large scale, such as the whole formation or as a whole category. Individual hand specimens are better (more precisely) named using textural or mineralogical terms.
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- (Keywords) Igneous and Metamorphic Fichas sobre Metamorphic - General Rock Names Based on Bulk Composition, creado por Stephen Booth el 23/04/2017.
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- Stephen Booth
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