metamorphic facies

Geol. a group of metamorphic rock units characterized by particular mineralogic associations.

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Universalium. 2010.

Look at other dictionaries:

  • Metamorphic facies — Eclogite Blueschist Greenschist Prehnite Pumpellyite …   Wikipedia

  • metamorphic facies — Geol. a group of metamorphic rock units characterized by particular mineralogic associations …   Useful english dictionary

  • FACIÈS MINÉRALOGIQUE D’ESKOLA — «Un faciès minéralogique est l’ensemble des roches formées en conditions de pression et de température si semblables qu’une même composition chimique fournisse le même ensemble de minéraux (paragenèse minéralogique) quel que soit le mode de… …   Encyclopédie Universelle

  • Metamorphic rock — Metamorphic redirects here. For other uses, see Metamorphic (disambiguation). Quartzite, a form of metamorphic rock, from the Museum of Geology at University of Tartu collection. Metamorphic rock is the transformation of an existing rock type,… …   Wikipedia

  • metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …   Universalium

  • Metamorphic zone — Schematic map of a terrane with an increasing metamorphic grade. There are two folded lithologies: quartzite (originally sandy sediment) and pelite (originally clayy sediment). The index minerals can only grow in the pelite. The highest indicated …   Wikipedia

  • Facies — The term Facies can also refer to distinctive facial expressions associated with conditions such as Williams syndrome. In geology, facies are a body of rock with specified characteristics. [Reading (1996)] Ideally, a facies is a distinctive rock… …   Wikipedia

  • facies — /fay shee eez , sheez/, n., pl. facies. 1. general appearance, as of an animal or vegetable group. 2. Geol. the appearance and characteristics of a sedimentary deposit, esp. as they reflect the conditions and environment of deposition and serve… …   Universalium

  • Metamorphic core complex — Metamorphic core complexes are exposures of deep crust exhumed in association with largely amagmatic extension. They form, and are exhumed, through relatively fast transport of middle and lower continental crust to the Earth s surface. During… …   Wikipedia

  • Prehnite-pumpellyite facies — The prehnite pumpellyite facies is a metamorphic facies typical of subseafloor alteration of the oceanic crust around mid ocean ridge spreading centres. It is a metamorphic grade transitional between zeolite facies and greenschist facies… …   Wikipedia

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