gneiss wikipedia - EAS
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Gneiss is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always … See more
In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding (gneissic banding) but poorly developed schistosity and indistinct cleavage. … See more
The word gneiss has been used in English since at least 1757. It is borrowed from the German word Gneis, formerly also spelled Gneiss, which is probably derived from the Middle High German noun … See more
Gneisses are characteristic of areas of regional metamorphism that reaches the middle amphibolite to granulite metamorphic facies. In other words, the rock was metamorphosed at a temperature in excess of 600 °C (1,112 °F) at pressures between about 2 to 24 See more
Gneiss has been used as a building material, such as the Facoidal gneiss, used extensively in Rio de Janeiro. Gneiss has also been used as construction aggregate for asphalt pavement. See more
• "Gneiss" . Encyclopædia Britannica (11th ed.). 1911.
• "Gneiss" . New International Encyclopedia. 1906. See moreWikipedia text under CC-BY-SA license - People also ask
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