Sector-zoned aegirine in Sanbagawa quartz schist from the western Kii Peninsula, central Japan
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چکیده
منابع مشابه
Sector-zoned aegirine in Sanbagawa quartz schist from the western Kii Peninsula, central Japan
Sector-zoned aegirine was found in a specimen of Sanbagawa quartz schist from the Iimori region of the western Kii Peninsula, central Japan. The schist consists of quartz, aegirine, albite, amphibole (magnesioriebeckite to manganocummingtonite), garnet (spessartine), rhodochrosite, pyrophanite, jacobsite, and apatite. Aegirine occurs as subhedral to euhedral prismatic crystals less than 250 μm ...
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In the Asemi-gawa area of intermediate high-pressure and low-temperature Sanbagawa metamorphic belt in central Shikoku, Japan, piemontite-quartz schists are common in which cation exchange between piemontite and garnet has been studied. Piemontite in contact with garnet usually contains two zones in which core is enriched in Mn3+ and surrounded by a rim rich in Fe3+. Garnet is Ca-Fe-bearing spe...
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ژورنال
عنوان ژورنال: Journal of Mineralogical and Petrological Sciences
سال: 2012
ISSN: 1345-6296,1349-3825
DOI: 10.2465/jmps.120513