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زمینشناسی و معدن::
گلوکوفان
Glaucophane is a blue-violet Na-amphibole that forms at a pressure of about 0.6 GPa (corresponding to about 20 km burial depth).
, lawsonite, zoisite, glaucophane); however, the major portion is emit- ted into the mantle above the subduction zone.
Therefore, the central parts in the core of the pillows, which are pro- tected against circulating fluids, remain as eclogite, the edges as glaucophane- schist, and the pinches where fluids could corrode easily, as greenschist.
were under less extreme pressure and slightly de- creasing temperatures, glaucophane was formed.
At shal- lower depth, the blue glaucophane of the spandrels between the pillows was changed into green am- phibole; blueschist was converted into greenschist.
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