GEOLOGICAL CHARACTERISTICS AND METALLOGENIC MODEL OF THE HUANGHUASHAN GOLD DEPOSIT IN JIANPING, LIAONING PROVINCE

The Huanghuashan gold deposit is of important hydrothermal alteration rock type in Jianpng, Western Liaoning Province. The Neoarchean metamorphic basement of gneiss is the source bed for gold. The Mesoproterozoic intrusive rocks serve as the main host of gold ore. The Late Jurassic intrusive rocks are metallogenic rock bodies of the deposit. The imbricated thrust nappe structure from northwest to southeast was formed in Indosinian period in Huanghuanghua area, which provided space for the mineralization. Because of the intense Yanshanian magmatic activity, with which the intrusions remelted the underlying source bed or captured the high-Au strata, the ore-forming hydrothermal fluid run upward along the Huanghuashan imbricated thrust nappe structure and accumulated to form gold orebodies in the structural belt. With analysis of the ore-forming process, the metallogenic model of Huanghuashan gold deposit is set up.