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Low-pressure and -temperature K-bearing clinopyroxene from the Osayama serpentinite melange, SW Japan
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- Tsujimori Tatsuki
- Stanford Univ.
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- Liou J.G.
- Stanford Univ.
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- Itaya Tetsumaru
- Okayama Univ. of Sci.
Bibliographic Information
- Other Title
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- 低温低圧でもカリウムを含む単斜輝石について
Description
Chromian diopside with high K content up to 0.56 wt% was discovered from the Osayama serpentinite melange, SW Japan (Tsujimori and Liou, 2005). K-bearing clinopyroxene (K-Cpx) fills hydrothermal micro-veins together with uvarovite within albite vein of a tremolite rock. K-Cpx consists mainly of kosmochlor + augite (92-98%; Ko19-38Aug56-76) components and minor amounts of jadeite (0-6%), aegirine (0-5%), Ca-Tschermak (0-3%), and K-kosmochlor (0-2%). K correlates with Na and Cr, indicating a simultaneous enrichment of K for Na and Cr during pyroxene growth. The incorporation of K into the kosmochlor_-_diopside series solid solution with at least 0.2 Cr cation p.f.u. is possible even at low P conditions.
Journal
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- Abstracts of Papers Presented at the Annual Meeting of The Japanese Association of Mineralogists, Petrologists and Economic Geologists
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Abstracts of Papers Presented at the Annual Meeting of The Japanese Association of Mineralogists, Petrologists and Economic Geologists 2005 (0), 36-36, 2005
Japan Association of Mineralogical Sciences
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Details 詳細情報について
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- CRID
- 1390282680568068736
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- NII Article ID
- 130005019854
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed