MAIN PECULIARITIES OF FLUID SYSTEMS UNDER APATITE FORMATION IN CARBONATE-BEARING ENDOGENOUS ASSOCIATIONS
Keywords:
apatite, carbonates, carbonatite, metamorphic apatite-carbonate rock, scarn, iso-topic indicators, fluid, inclusion, mineral forming system, Precambrian.Abstract
Fluid systems of apatite from different carbonate-bearing endogenic association were studied by decrepitation analysis, high temperature chromatography analysis, and gas analysis of indi-vidual inclusions. Carbon and oxygen isotopic composition of different genetic types of the car-bonate rocks have been used to determine main tendency of its formation and secondary altera-tion. The information about chemical composition of inclusions for the apatite and diopside from carbonatites, metamorphic rocks and scarns has been obtained. H2O and CO2 are main compo-nents of the inclusions from apatite from different associations. There is a great similarity be-tween compositions of the inclusions in different kind of studied rocks.
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