桂西北热水沉积型金矿成矿系列、找矿标志及找矿前景

MINERALIZATION SERIES,ORE PROSPECTING INDICATOR AND PROSPECTIVE OF HYDROTHERMAL GOLD DEPOSIT IN THE NORTHWEST GUANGXI

桂西北地区属滇黔桂裂谷,具高的地热场环境。主要发育晚古生代—中生代的地层,尤其是三叠系广泛分布。在晚古生代坳陷区内分布着许多古隆起,在古隆起边缘生长断裂发育。表明该区成矿环境及成矿地质条件有利。区内发育的高龙式、隆或及八渡、龙川等微细浸染型金矿属于受裂谷构造控制、与热水沉积作用有关的热水沉积型金矿成矿系列。指出了该类金矿的找矿评价标志,分析了区内该类金矿良好的找矿前景。

The northwest Guangxi belongs to the rift zone of Dian （Yunnan） -Qian （Guizhou） -Gui （Guangxi） with a high temperature geothermal field. The strata are mainly late Paleozoic -Mesozoic with widely distribution of Triassic strata. There are a lot of lifts in late Paleezoic sag, and growth faults are developed in the margin of the lifts, The environment and geological conditions are favorable for mineralization. The micro - disseminated gold deposits such as Ganlong, Longhuo, Badu and Longchuan constitute an ore - forming series of hydrothermal gold deposits, which are controlled by rift, The ore prospecting indicators are pointed out and the prospecting prospective has been analyzed for the area.