Blueschist

Photomicrograph of garnet-lawsonite-glaucophane blueschist from Sivrihisar, Turkey. Field of view = 3 mm.

Photomicrograph of blueschist facies quartz sediment, Sivrihisar, Turkey

Blueschist /ˈbluːʃɪst/, also called glaucophane schist, is a metavolcanic rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures, approximately corresponding to a depth of 15 to 30 kilometers and 200 to ~500 degrees Celsius. The blue color of the rock comes from the presence of the predominant minerals glaucophane and lawsonite.

单词	Blueschist
释义	Blueschist 英语百科 Blueschist Blueschist /ˈbluːʃɪst/, also called glaucophane schist, is a metavolcanic rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures, approximately corresponding to a depth of 15 to 30 kilometers and 200 to ~500 degrees Celsius. The blue color of the rock comes from the presence of the predominant minerals glaucophane and lawsonite.
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