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ABSTRACT. Potassium pargasite containing 3.19 wt. K20 was found in a skarn from the islet of Einst6dingen, L/itzow Holm Bay, East Antarctica, together with some high potassium pargasitic amphiboles. A positive correla-tion is shown between Fe2+/(Mg+Fe 2+) and K/(K+ Na(A)) ratios in pargasitic amphib...
Main Authors: | , |
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Format: | Text |
Language: | English |
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.600.4703 http://www.minersoc.org/pages/Archive-MM/Volume_49/49-354-703.pdf |
Summary: | ABSTRACT. Potassium pargasite containing 3.19 wt. K20 was found in a skarn from the islet of Einst6dingen, L/itzow Holm Bay, East Antarctica, together with some high potassium pargasitic amphiboles. A positive correla-tion is shown between Fe2+/(Mg+Fe 2+) and K/(K+ Na(A)) ratios in pargasitic amphiboles suggesting that the increase of Fe 2 § serve to stabilize high-K pargasites under the metamorphic conditions of the granulite facies. |
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