冈底斯成矿带是我国最重要的资源接续基地之一,其中冈底斯岩浆弧(IIl43)是最重要的III级成矿带,研究程度最高在拉孜县一工布江达县长约600km、宽约90km范围内,已发现并评价了5个超大型矿集区:雄村铜金矿集区,厅宫一冲江铜多金属矿集区,甲玛一驱龙一邦铺铜多金属矿矿集区,蒙亚啊一洞中拉.亚贵拉多金属矿集区,程巴一努日钨钼铜矿集区。根据近年来的研究成果,厘定出与海两期火山作用、海西期裂谷构造有关的铅锌银矿床成矿系列组、印支.燕山期与沉积。构造岩浆作用有关的铜、金、铁、铅锌、银、钼矿床成矿系列组以及冈底斯成矿带内喜山期与构造岩浆、沉积作用有关的铜、金、铁、铅锌、银、钼、钨、铀、盐类矿床成矿系列组,包括6个矿床成矿系列和10个成矿亚系列。主要的矿床成矿亚系列为:与早侏罗世一晚侏罗世岛弧型中酸性火山岩.浅成岩建造有关的铜、金、银、铅锌矿床成矿亚系列,成矿年龄173-160Ma,雄村外围和拉萨以东广泛分布的叶巴组分布区是其主要找矿远景区;与古新世一始新世中酸性火山一中浅成岩浆建造有关的铅锌、银、钼、钨、铁矿床成矿亚系列(沙让式、亚贵拉式、洞中拉式),成矿年龄在65~38Ma,林周盆地一南木林盆地及其北侧的隆格尔断隆带是主要的找矿远景区;与中新世中酸性浅成岩浆建造有关的铜、钼、铅锌、钨、金、银矿床成矿亚系列(驱龙式、甲玛式、冲江一厅宫式、朱诺式、邦铺式),成矿年龄17-13Ma,冈底斯成矿带东段中带是主要的找矿远景区,尤其是含矿斑岩体接触带的矽卡岩型铜多金属矿,如新发现的普桑果矽卡岩型铜铅锌矿。成矿元素从南往北的分布规律为Cu—Au(斑岩型)→Mo—w(cu)(斑岩-矽卡岩型)→Cu—Mo—Pb—Zn(Au、Ag)(斑岩-矽卡岩型)--*Mo?
The Gangdese metallogenic belt is one of the most important continual basements for mineral resources in China. The Lhasa Terrane (Gangdise magmatic arc, 11143) is one of the most significant third-level (III) metallogenic belts. There is a region from Lhaze County to Gongbo'gyamda County which is 600 km long and 90 km wide and has been studied in detail. There are five ore concentrated areas with the superlarge size Cu polymetallic deposits based on exploration and evaluation: Xiongcun Cu-Au ore concentrated area, Tinggong-C.hongjiang Cu polymetallic ore concentrated area, Jiama-Qulong-Bangpu Cu polymetallic ore concentrated area, Mengyaa-Dongzhongla-Yaguila polymetallic ore concentrated area, and Chengba-Nuri W-Mo-Cu ore concentrated area. The research in recent years shows that there are five groups of minerogenetic series composed of Pb-Zn-Ag minerogenetic series group related to Hercynian volcanism and rift valley, Cu-Au-Fe-Pb-Zn-Ag-Mo minerogenetic series group related to Indo-Chinese and Yanshanian sedimentation-tectonic magmatism, Cu-Au-Fe-Pb-Zn-Ag-Mo-W-U-salt deposits minerogenetic series group related to Himalayan tectonic magmatism and sedimentation in the Gangdise metallogenic belt, which are composed of six minerogenetic series and ten subseries of ore deposits. The major subserieses include Cu-Au-Ag-Pb-Zn subseries related to Early Jurassic-Late Jurassic arc-type intermediate-felsic volcanic-supergene rock formation between 173 Ma and 160 Ma in the Yaba Formation in the periphery of Xiongcun and east of Lhasa with a promising potential; Pb-Zn-Ag-Mo-W-Fe subseries (Sharang style, Yaguila style and Dongzhongla style) related to Paleocene-Eocene intermediate-felsic volcanic rock and intermediate-supergene rock formation between 65 Ma and 38 Ma in the Linzhou Basin-Nanmulin Basin and Longger dislocated upwarping belt in the north with a promising potential; Cu-Mo-Pb-Zn-W-Au-Ag subseries (Qulong style, Jiama style, Chongjiang-Tinggong style, Zhunuo style and Bangpu style) related to M