Blueschist - Wikipedia
Blueschist ( / ˈbluːʃɪst /), also called glaucophane schist, is a metavolcanic rock [1] that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low …
Blueschist : Compositions, Properties, Formation - Geology Science
2023年1月12日 · The term “schist” refers to a type of metamorphic rock characterized by the alignment of mineral grains, giving it a foliated texture. Blueschist forms under conditions of …
Blueschist - ALEX STREKEISEN
Blueschist is a regional metamorphic rock formed under high-pressure (HP) low-temperature (LT) conditions. It is formed in the subduction zone environment with low geothermal gradients (4 …
Emergence of blueschists on Earth linked to secular changes in ... - Nature
2015年12月14日 · Thermodynamic calculations now suggest that blueschist rocks could not have formed on a younger, hotter Earth. The oldest blueschists—metamorphic rocks formed during …
Blueschist - an overview | ScienceDirect Topics
Blueschist is a type of rock that forms under high pressures and relatively low temperatures in association with subduction and continental collision processes. AI generated definition based …
Blueschist: A window into high-pressure/low-temperature …
2020年7月20日 · Blueschist is a regional metamorphic rock formed under high-pressure (HP) low-temperature (LT) conditions. It is formed in the subduction zone environment with low …
One schist, two schist, greenschist, blueschist: Metamorphosed …
In others, rocks were buried so deep that they're radically different from what they started as, such as blueschists. Each had a volcanic precursor, but different subduction journeys created the …
Distribution and age of high-grade blueschists, associated …
These data suggest that the high-grade blue-schist and amphibolite blocks represent fragments of a cryptic metamorphic terrane of pre-Tithonian age that have been tectonically mixed with …
Blueschists, eclogites, and subduction zone tectonics: Insights …
2010年7月1日 · Blueschist (glaucophane schist) is a metamorphosed basaltic rock, characterized by glaucophanic amphibole as the major constituent mineral.
Age of blueschist does not indicate the origin of plate tectonics
2015年12月15日 · Blueschist is a blue-violet-colored rock that is relatively rare and is found in the Alps, in Japan, on the west coast of the USA and other places. The oldest blueschist found …
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