Calc-alkaline and tholeiitic rock series magmas coexisting within volcanoes in Japanese island arcs - Strontium isotopic study.
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چکیده
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Source and H2O content of high-MgO magmas in island arc settings: An experimental study of a primitive calc-alkaline basalt from St. Vincent, Lesser Antilles arc
Liquidus phase relationships have been determined for a high-MgO basalt (STV301: MgO 12.5 wt%, Ni 250 ppm, Cr 728 ppm) from Black Point, St Vincent (Lesser Antilles arc). Piston-cylinder experiments were conducted between 7.5 and 20 kbar under both hydrous and oxidizing conditions. AuPd capsules were used as containers. Compositions of supraliquidus glasses and mass-balance calculations show th...
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Significance of hornblende in calc-alkaline andesites and basalts
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ژورنال
عنوان ژورنال: The Journal of the Geological Society of Japan
سال: 1986
ISSN: 0016-7630,1349-9963
DOI: 10.5575/geosoc.92.255