Magma mush chemistry at subduction zones, revealed by new melt major element inversion from calcic amphiboles
نویسندگان
چکیده
منابع مشابه
کانی‌شناسی و شیمی‌کانی دایک‌های کوارتزدیوریتی کانسار مولیبدن- مس پورفیری سونگون (شمال‌غرب ایران)
The study area is located in NW of Iran, East-Azarbaidjan Province in north Varzeghan. Plagioclase, amphibole and biotite are the major minerals and sphene, apatite, and quartz are accessory minerals. The texture of these dykes are porphyrytic with fine to medium matrix. Mineral chemistry analysis revealed that the composition of Plagioclase varies from andesine to oligoclase and the biotite va...
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Two main types of subduction zones can be distinguished: (1) those where the subduction hinge migrates away from the upper plate; and (2) those in which the subduction hinge migrates toward the upper plate. Apart from a few exceptions, this distinction seems to apply particularly for W-directed subduction zones and Eor NE-directed subduction zones, respectively. Moreover, the rate of subduction...
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ژورنال
عنوان ژورنال: American Mineralogist
سال: 2017
ISSN: 0003-004X
DOI: 10.2138/am-2017-5928