Prograde Sulfide Metamorphism in Blueschist and Eclogite, New Caledonia
In New Caledonia, blueschist and eclogite preserve, as inclusions in porphyroblastic minerals, a record of sulfide present during prograde subduction processes. Sulfide inclusions in prograde garnet and lawsonite became chemically isolated from the matrix whereas sulfide minerals in the matrix continued to equilibrate with matrix fluids, or grew later, during retrogression. Cu-Fe sulfide mineral inclusions have been found across metamorphic grade within silicate-defined metamorphic mineral...[Show more]
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|Source:||Journal of Petrology|
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