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Related to blueschist: Greenschist


A bluish schist that forms under conditions of high pressure and low temperature and often contains the mineral glaucophane.
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References in periodicals archive ?
As the oceanic crust subducts, it experiences a very high pressure but relatively low temperature style of regional metamorphism, and the basalt and gabbro are transformed to blueschist (or glaucophane schist) and then to eclogite (Figure 5).
Eight specimens, including granite, rhyolite, blueschist, septarian concretions, and a triolibite, were loaned to WMI from the geology collections at the University of Southern Indiana.
Beryl-bearing sediments of the study area that are derived from metamorphic units consist of garnet-glaucophane schist, lawsonite-glaucophane schist, epidote-chlorite schist, epidotite, and chlorite-lawsonite schist (Kulaksiz, 1981) reflecting blueschist facies (Bucher and Frey, 1994; Davis and Whitney, 2006).
Late Permian blueschist from Anarak Ophiolite (central Iran, Isfahan province) a mark of multi-suture closure of the Paleo-Tethys ocean, Revista Mexicana de ciencias geologicas, 28(3): 544-554.
The Study area is a part of the Kot-Pranghar Melange Zone, which is comprised of rocks of ophiolitic sequence and is located at the northern tip of the Indian plate in the vicinity of Indus Suture Zone (ISZ) or Main Mantle Thrust (MMT) along which a thick imbricated melange zone of greenschist, blueschist, and serpentinite intervenes between the Kohistan Arc and the Indian Plate.
After discussion of the geology of the Eastern Mediterranean, the guide presents a two-day field guide to outcrops in Samos Island, Greece, then a six-day guide that explores the Antolide Belt in western Turkey where the Menderes nappes form the tectonic footwall below the Cycladic Blueschist Unit, sections across the Bozdag and Aydin Mountains, and the southern margin of the Menderes Massif in the Milas-Selimiye area.
Most samples are metabasalts that belong to the chlorite zone of the greenschist facies, but other rock types include metagrey wackes and a metabasalt of the prehnite/ pumpellyite facies, and a glaucophanic metachert and glaucophanic metabasalt of the blueschist facies.
Stuart pole was just one of six impossible things before breakfast, along with news of exotic, Asian faunas near Cache Creek in the BC interior; Franciscan-type blueschist belts embedded deep in the central Cordillera near Fort St.
Exotic Terrane Accretion and Blueschist Emplacement
Lawsonite blueschist in northern Qilian, NW China: P-T pseudosections and petrologic implications, Journal of Asian Earth Sciences.
A new geological map of the island of Syros (Aegean Sea, Greece); implications for lithostratigraphy and structural history of the Cycladic Blueschist Unit.