The mineralogy of kyanite quartzite in the Pütürge metamorphites

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The Pütürge metamorphic complex consists of pelit/semi-pelit, pisamite, metagranite, gneiss, amphibolite, quartzite, marble. Mineral paragenesis, the transformation of the garnet mineral advancing on the kyanite- almandine-muscovite and staurolite-almandine sub-facies of the amphibolite facies of the massive to chlorite and biotite minerals along with the transformation of the kyanite mineral to muscovite mineral show that the massive has undergone two retrograde metamorphisms on the greenschist facies. The exhumation process of the rocks is seen as the causeof the retrograde metamorphism. Generally kyanite quartsite consists of 35% SiO2 and 40%Al2O3, Fe2O3, Cr2O3 and rarely CaO, MgO, FeO ve TiO2 . It is closed fault zone or amphibolite and can be lens-shaped, pegmatitic in Pütürge metamorphite. Kyanite quartzite are produced metamorphism of acidic, nötr volcanic and subvolcanic or arc rocks; syn-metamorphism developed with premetamorphism or tectonic factors, metamorphism of high alumina clays, especially insert rock of C, Fe, Al, Mg fluids. In the pressure fluids inserts mineral in the prograd metamorphism and in the mineral are mineralogic-chemical changes. It seen quartz, Mg-syderite, graphite inclusios. It is low K2O from major oxides. Also this are relations rock composition or high serizitization alteration. The high Al and Fe trace element composition of quartz in kyanite quartzite related to inclusion mineral or nature radioactivite of quartz. Because radioactivite is visible into biotite in the pelitic rocks.

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Mineralogy , Geochemistry , Kyanite quartzite , Metamorphite

dicle university journal of institute of natural and applied science

117

dicle university journal of institute of natural and applied science