Feldspar in felsic orthogneiss as indicator for UHT crustal processes
نویسندگان
چکیده
منابع مشابه
Alkaline Rocks and Geodynamics
105 Abstract: Origin of A-type alkali feldspar granites is currently the subject of a world-wide debate. Contrasting hypotheses have been proposed, which range from an entirely crustal origin to an almost complete mantle derivation. A-type alkali feldspar granites belong to either unimodal granite (rhyolite)-dominated association, or bimodal gabbro (basalt)-granite (rhyolite) suite. It is argue...
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Kashmar granitoids of Taknar zone, in north part of Lut block, intruded into volcanic rocks and consist of granites, granodiorites, monzodiorite and gabbrodiorites. They are composed of mainly plagioclase, alkali-feldspar, quartz, amphibole, biotite and pyroxene minerals. Harker diagram variation, including negative correlations CaO, MgO, FeO, TiO2 and V and positive correlations K2O, Rb, Ba, a...
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ژورنال
عنوان ژورنال: Journal of Mineralogical and Petrological Sciences
سال: 2006
ISSN: 1345-6296,1349-3825
DOI: 10.2465/jmps.101.260