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A pelite (from Ancient Greek πηλός (pēlós) 'clay, earth') or metapelite is a metamorphosed fine-grained sedimentary rock, i.e. mudstone or siltstone.
The solidus of subducted sediment (pelite and greywacke) was determined by Herman and Spandler (2008) in the 2.5–4.5 GPa pressure range. As can be seen in Fig. 1.38 , those authors placed the solidus of sediment near that of andesite + H 2 O. Interestingly, the solidus mineral assemblage was stated to be amphibole + quartz + phengite below ...
8 de may. de 2018 · Earth and the Environment. Minerals, Mining, and Metallurgy. Mineralogy and Crystallography. pelite. views 3,477,932 updated May 08 2018. pelite (adj. pelitic) An aluminium-rich, metamorphic rock formed by the metamorphism of clay-rich sedimentary rocks, e.g. shales and mudstones.
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently.
2 de nov. de 2022 · Pelites (shales and mudstones) are arguably the most important rock type for interpreting metamorphism. Their significance derives from their widespread occurrence and the range of mineral assemblages they develop at different conditions of pressure and temperature.
A pelite or metapelite is a metamorphosed fine-grained sedimentary rock, i.e. mudstone or siltstone. The term was earlier used by geologists to describe a clay-rich, fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone, the metamorphosed version of which would technically have been a metapelite.
On Wikipedia A pelite (Greek: pelos, "clay") or metapelite is a metamorphosed fine-grained sedimentary rock, i.e. mudstone or siltstone. The term was earlier used by geologists to describe a clay-rich, fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone, the metamorphosed version of which would technically have been a ...
