柴达木盆地北缘滩涧山金矿遥感综合找矿模式  

Integrated Remote Sensing Metallogenic Mode of Tanjianshan Gold Deposit In the Northern Marginal Mineralization Belt of Qaidam Basin

作　　者：鞠崎[1] 刘振宏[2] 王永[3] 

机构地区：[1]中国煤炭地质总局青海煤炭地质局,青海西宁810001 [2]青海省国土资源厅项目管理中心,青海西宁810001 [3]中煤航测遥感局遥感应用研究院,陕西西安710054

出　　处：《西北地质》2009年第4期22-29,共8页Northwestern Geology

基　　金：青海省2006年地质勘查项目[2006]02号资助

摘　　要：通过ETM卫星图像的成矿信息提取,获取滩涧山金矿的遥感地质标志信息和遥感矿化蚀变信息,然后以遥感地质信息、遥感矿化蚀变信息和物化探信息等作为评价因子,构建滩涧山金矿遥感综合成矿模式,指导柴达木盆地北缘成矿带的金矿遥感成矿预测。预测结果表明:秦川沟-千枚岭、万洞沟、独龙沟3个地区具有较好的金矿遥感综合成矿条件。通过野外查证和采样化验证明:秦川沟-千枚岭滩涧山群(O2ST)板岩及石英脉中的A u:0.30×10-6;独龙沟北段滩涧山群(O2ST)绿泥石化安山岩中石英脉样A u:1.22×10-6;独龙沟南段断裂带内滩涧山群(O2ST)绿泥石化安山岩及凝灰岩矿化带A u:0.37×10-6;万洞沟断裂带内滩涧山群(O2ST)安山岩夹凝灰岩矿化带中A u:0.48×10-6。具有较好的金矿找矿线索。因此,应用滩涧山金矿(典型矿床)的遥感综合找矿标志模式在柴达木北缘成矿带(同一成矿带)进行遥感找矿预测取得了良好的效果。可作为一种地质找矿方法在西部地区推广。The integrated remote sensing prospecting mode can be built through the comprehensive analysis of remote sensing images information, mineralized alteration information, ore formation, ore-control tectonic information, and united intrusive rocks information, geophysical and geochemical unusual information in Tanjianshan goldmine, and guide Mineralization prediction with remote sensing in the northern margin of mineralization belt of Qaidam Basin. The prediction results show that there are good gold metallogenic conditions in integrated remote sensing information in Qinchuangou to Qianmeiling, Wandonggou and Dulonggou. The field verification and sampling tests prove that the Au metal grade purity is 0. 30g/t in slate and quartz vein of Tanjianshan group of Ordovician to Silurian in Qinchuangou to Qianmeiling, 1. 22g/t in quartz veins of andesite and 0. 37g/t in mineralization zone of andesite and tuff of Tanjianshan group of Ordovician to Silurian in Dulonggou, 0. 48g/t in mineralization zone of andesite and tuff of Tanjianshan group of Ordovician to Silurian in Wandonggou fault zone. Therefore, the application of the integrated remote sensing prospecting mode of Tanjianshan goldmine （typical deposit） for remote sensing exploration prediction achieved good results in the northern margin of Qaidam metallogenic belt （the same metallogenic belt）. So, this method can be used as a remote sensing prospecting way to generalize and apply in mineral prediction in the western areas, China.

关 键 词：矿化蚀变信息 容矿地层、控矿构造 物化探信息 找矿模式 柴北缘 

分 类 号：P618.51[天文地球—矿床学]