Geological Characteristics Arid Ore Genisis Of Zhengguang Gold Deposit In Heihe Area, Heilongjiang Province

The Zengguang gold deposit is located at the cross part between the paleo-Asianand circle Pacific metallogenic tectonic belt, where is of very proable metallogeniccondition is very better. In this district, many deposits have been discovered, such asDuobaoshan and Tongshan porphyry copper deposit, Sankuanggou copper-irondeposit. This region has been become one of valuable resource basements for preciousmetal and nonferrous metal in China. Based on the systemic research on metallogenicgeological settings and gold mineralization characteristics in this area as well as thetypical deposits, ore-forming material source, metallogenic procedure, ore genesis arediscussed. Meanwhile, metallogenic model and ore prospecting clues are concluded.Some targets are also forecasted. The main research achievements can be listed asfollowings.1. The geological setting and tectonic evolution history of the studied area wassummarized. By system analysis of Duobaoshan and Tongshan porphyrycopper-molybdenum deposit, Sankuanggou skarn copper-iron deposit, as well ascomparation with other same type deposit aboard, the copper and gold metallogeniccharacteristic are studied, and a metallogenic model and ore-finding indictors are setup.2. The metallogenic characteristics are summarized for Zhengguang gold deposit.By geological setting, ore body features, ore mineral composition and suchgeochemical characteristics as trace elements, stable isotopes and fluid inclusion, theore genesis and metallogenic mechanism are discussed. The important result is thatthe deposit beolong to the epithermal gold deposit associated with the diorite.