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Zealand and New Caledonia. Continued subduction of blueschist facies oceanic crust will produce eclogite facies assemblages in metamorphosed basalt (garnet +...

temperature) The blueschist facies is at relatively low temperature but high pressure, such as occurs in rocks in a subduction zone. The facies is named after...

prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite facies assemblages may or...

albite in metamorphic rock of the low-temperature, high-pressure blueschist facies at destructive plate margins. Although it is intermediate in silica...

prehnite-pumpellyite facies, but as the basalt subducts to greater depths, it is metamorphosed to the blueschist facies and then the eclogite facies. Metamorphism...

formed under blueschist facies conditions if the original rock (protolith) contains enough magnesium. This explains the scarcity of blueschist preserved...

magmatic body (metasomatism) sometimes take place. The hornfels facies is the metamorphic facies which occupies the lowest pressure portion of the metamorphic...

Metamorphic facies included are: BS = Blueschist facies, EC = Eclogite facies, PP = Prehnite-Pumpellyite facies, GS = Greenschist facies, EA = Epidote-Amphibolite...

under blueschist facies conditions along with other sodic minerals such as albite, jadeite and glaucophane. During the transition from blueschist to greenschist...

prehnite-pumpellyite facies to the granulite facies, as well as the blueschist facies and eclogite facies at higher pressures and the contact hornfels facies at lower...

temperatures. The pressures exceed those of greenschist, blueschist, amphibolite or granulite facies. Eclogites containing lawsonite (a hydrous calcium-aluminium...

omphacite can be stable even in deeper mantle. It also occurs in blueschist facies and ultrahigh-pressure metamorphic rocks. It is also found in eclogite...

mined in Nevada. Lawsonite is a metamorphic mineral typical of the blueschist facies. It also occurs as a secondary mineral in altered gabbro and diorite...

wall between Cape Plaka and Athinios. The metamorphic grade is a blueschist facies, which results from tectonic deformation by the subduction of the...

regionally metamorphosed schists, gneisses, and iron formations; in blueschist facies rocks, and from sodium metasomatism in granulites. It may occur as...

minerals such as phengite, garnet, and glaucophane within the lower blueschist facies. Such rocks are typically white, friable, and fibrous, and are known...

Granulites are a class of high-grade metamorphic rocks of the granulite facies that have experienced high-temperature and moderate-pressure metamorphism...

was prone to metamorphose into greenschist instead of blueschist at ordinary blueschist facies. Oceanic crust is continuously being created at mid-ocean...

sorosilicates include lawsonite, a metamorphic mineral forming in the blueschist facies (subduction zone setting with low temperature and high pressure),...

prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite facies assemblages may or...