GRANITIC ROCKS OF THE IBARAGI GRANITIC COMPLEX, OSAKA, JAPAN
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چکیده
منابع مشابه
Petrography and Physicomechanical Properties of Rocks from the Ambela Granitic Complex, NW Pakistan
Petrography and physicomechanical properties of alkali granites, alkali quartz syenite, and nepheline syenite from Ambela, NW Pakistan, have been investigated. Whereas the alkali quartz syenite and most of the alkali granites are megaporphyritic, the nepheline syenite and some of the alkali granites are microporphyritic. Their phenocryst shape and size and abundance of groundmass are also diffe...
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Zircon and monazite from granitic sheets and dikes in the Monashee complex, Canadian Cordillera, were investigated to determine whether igneous crystallization occurred at 1.9 Ga or 50 Ma with 1.9 Ga inherited zircon and monazite. Four of the five samples are weakly deformed to undeformed, despite occurring in a gneiss dome at the structurally deepest exposed level of the orogen that elsewhere ...
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SINCE Cross, Iddings, Pirsson, and Washington 09o3) first published their system of deriving normative minerals from chemical analyses, the CIPW norm has been successfully used to identify, compare, and classify trends in igneous rocks with similar or differing mineral compositions. The norm has been used for metamorphic rocks and rocks of somewhat uncertain mode of origin (Bowes, ~967). Variou...
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ژورنال
عنوان ژورنال: The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists
سال: 1974
ISSN: 0021-4825,1883-0765
DOI: 10.2465/ganko1941.69.285