云南墨江县金厂金镍矿成矿规律及找矿远景

METALLOGENIC REGULARITY AND PROSPECTING PROSPECTS OF JINCHANG GOLD-NICKEL DEPOSIT IN MOJIANG COUNTY,YUNNAN PROVINCE

金厂金镍矿床位于特提斯成矿域哀牢山Au-Cu-Mo-Cr矿带,华力西-印支早期形成。九甲-安定深大断裂(F 3)中基性-超基性岩体侵位为主要的矿质来源,矿体分布于金厂岩体底部内外触带,主要成矿元素Au、Ni,次要成矿元素Co、Se、Ag、Ga、Te、PGE等,矿床成因类型为“复成金镍多金属矿床”(熔离-贯入作用+改造+迭生)。

The Jinchang gold-nickel deposit is located in the Ailaoshan Au-Cu-Mo-Cr ore belt in the Tethys mineralization zone,formed in the early Variscan-Early Indochinese period.The emplacement of the basic-ultrabasic rock mass in the Jiujia-Anding Deep Fault(F3)is the main source of mineral resources.The ore bodies are distributed in the inner and outer contact zones at the bottom of the Jinchang rock mass,with the main ore-forming elements of gold and nickel,and secondary ore-forming elements of Co,Se,Ag,Ga,Te,PGE,etc.The genetic type of the deposit is a“composite gold-nickel polymetallic deposit”(melting-penetration+transformation+superposition).