青海都兰县洪水河口金矿地质-地球化学特征及找矿模型  

Geological-geochemical characteristics and ore-prospecting model of the Hongshuihekou gold deposit in Dulan County,Qinghai Province

作　　者：郭海明 李云平 牛豹 GUO Haiming;LI Yunping;NIU Bao(The Fifth Geological Exploration Institute of Qinghai Province,Xining 810099)

机构地区：[1]青海省第五地质勘查院,西宁810099

出　　处：《矿产勘查》2020年第6期1242-1248,共7页Mineral Exploration

基　　金：青海省地勘基金项目(编号:2016020026jc001,2017042134kc084,2018137130kc094,2019048102kc044)资助。

摘　　要：洪水河口金矿位于柴达木盆地南缘,东昆仑(造山带) Fe-Pb-Zn-Cu-Co-Au-W-Sn-石棉成矿带上。目前金矿储量达4. 88 t,金平均品位4. 21 g/t。依据1∶2. 5万地球化学测量资料,结合地质特征,对洪水河口地区7种元素的分布、相关性、组合异常等特征进行了分析研究,圈出1处金综合异常,通过对异常初步查证,圈定出1条大型金矿化蚀变带,1条金矿化体,说明1∶2. 5万地球化学测量可以在该区发挥很好的找矿指导作用,同时建立了该区地质地球化学找矿模型,指出了下一步找矿方向。The Hongshuihekou gold deposit is located in the southern margin of the Qaidam Basin,and the Fe-Pb-Zn-Cu-CoAu-W-Sn-asbestos metallogenic belt of the East Kunlun( orogenic belt).According to 1 ∶ 25,000 geochemical survey data,and combining the geological features,Research the distribution,correlation,combination anomaly of seven elements in the Hongshuihekou area.Circle 1 gold synthesis anomaly,Through the preliminary verification,A large gold alteration zone have been identified in the mining area,and one gold mineralized bodies.This indicates that 1 ∶ 25,000 geochemical survey can play a good guiding role in prospecting in this area,and the geological and geochemical prospecting model is established,The next prospecting direction is pointed out.

关 键 词：金矿 地质特征 地球化学特征 找矿模型 洪水河口 青海 

分 类 号：P618[天文地球—矿床学]