桂林理工大学学报2011，Vol.31Issue(4)：488-494,7.
沉积间断断面型金矿产出模式及找矿方向——以桂西久隆金矿为例
Metallogenic Model and Prospecting Targets of Sedimentary Discontinuity- Fractured Type Gold Deposit——A Case from Jiulong Gold Deposit of West Guangxi
摘要
Abstract
Jiulong gold deposit, located in Fengshan county of Guangxi, occurres at the edge of late Paleozoic carbonate platform uplift. The orebody is found in the clastic rock along the contact of Triassic and Permian, showing dipping lens and bedded in the faults. In deposit area, unconformity is developed between the carbonate of Permian and the clastic rock of Triassic, typical paleokarst structure. The unconformity, overprinted by late faults, combined with paleokarst and other geologic factors, results in the formation of Jiulong gold deposit. Most gold deposit concerned with the discontinuities in northwest Guangxi has similar genesis. These gold deposits in the discontinuities and the overprinting of faulting and deformation are controlled by many geologic factors. Based on this mineralization model, the prospecting in the gold triangle area bounded by Yunnan, Guizhou, and Guangxi is proposed. Strata, fault, deformation, paleokarst are ore-controlling factors. Among them, the paleokarst, as sedimentary discontinuities, is the most important one. It is the primary factor for prospecting new hidden gold deposits in this area.关键词
沉积间断断面型金矿/古岩溶/不整合面/层控/断控/久隆金矿Key words
sedimentary discontinuity - fractured type gold deposit/ paleokarst/ plane of lunconformity/ stratabound/ fault-bounded/ Jiulong gold deposit分类
天文与地球科学引用本文复制引用
刘苏桥,陆刚,白艳萍,方有杰,陈懋弘,杨锋..沉积间断断面型金矿产出模式及找矿方向——以桂西久隆金矿为例[J].桂林理工大学学报,2011,31(4):488-494,7.基金项目
广西自然科学基金项目(40372058) （40372058）
中国地质调查局项目(基[2010]矿评01-14-02) （基[2010]矿评01-14-02）
广西地质工程中心重点实验室系统性研究课题(11-031-20-3) （11-031-20-3）
