chlorite-chloritoid-garnet equilibria and geothermometry in the sanandaj-sirjan metamorphic belt, southern iran
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abstract
chloritoid is crystallised with chlorite, white mica and garnet in chlorite zone metapelites ofthe regional metamorphic rocks of the sanandaj-sirjan metamorphic belt in southern iran. chemistry ofcoexisting minerals is studied using microprobe analysis. application of the chlorite-chloritoidgeothermometry gives temperatures of 515°c and 557°c. the chlorite-garnet fe-mg exchangegeothermometer indicates temperatures between 442°c and 460°c for various pressures. a comparisonof the results from two geothermometers, along with a study of mineral assemblages in the rocks showthat the chlorite-chloritoid thermometer overestimates the temperature by about 70°c.
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Journal title:
iranian journal of science and technology (sciences)ISSN 1028-6276
volume 28
issue 1 2004
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