International scientific journal

ISSN: 2663-0419 (electronic version)

ISSN: 2218-8754 (print version)

International scientific journal

ISSN: 2663-0419 (electronic version)

ISSN: 2218-8754 (print version)

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Petrological model of the Lesser Caucasus Mesozoic ore-magmatic system formation

A.J.Ismail-zadeh

Institute of Geology and Geophysics of Azerbaijan National Academy of Sciences, AZ1143, Baku, H.Javid av., 119

Summary

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Mesozoic volcano-plutonic belt of the Lesser Caucasus is a derivative of a marginal-mobile microcontinent with obducted allochthonous ultrabasite plate on it during Carbonaceous-Permian. Tectonic-magmatic activization is caused by subsidence of microcontinent into mantle, melting and formation of granite magma consisting of large intrusive bodies in the base. Differentiates of granite magma contacted with upper ultrabasite plate and appeared hybrid diorite magma forms hypabyssal facies of granitoid intrusives. Transition was noted by change of chalcophile specialization of siderophile melt expressed in formation of polyformative types of fields often gold containing: sulfur pyrite, copper-pyrite, copper porphyric and pyrite-polymetallic on uplifts, and cobalt in troughs ferro-ore.