Abstract

From the studies of ore deposit geologic settings, sulfur isotopes, lead isotopes, carbon isotopes and oxygen isotopes, fluid inclusions and petrochemistry in this paper, the authors have drawn a conclusion that the ore-forming hydrothermal solutions are the high-temperature magmatic hydrothermal solutions for the gold ore deposit, and at the same time, the involvement of crustal materials can not be ruled out. It is the first time that the authors have proposed that the Laozuoshan gold-polymetallic ore deposit in Heilongjiang Province was formed in the calc-alkaline series environment at the margin of an active continent.

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