河南老湾金矿床地质特征和深边部找矿预测  

Geological characteristics and ore prediction on prospecting the depth and margin of Laowan Gold Deposit in Henan Province

作　　者：薛梦菲 张渐渐 潘鹤[3] Xue Mengfei Zhang Jianjian Pan He(The Third Institute of Geological Exploration, Henan Bureau of Geology and Mineral Resources Faculty of Land Resource Engineering, Kunming University of Science and Technology Henan Academy of Land Resource Sciences)

机构地区：[1]河南省地质矿产勘查开发局第三地质勘查院 [2]昆明理工大学国土资源工程学院 [3]河南省国土资源科学研究院

出　　处：《黄金》2017年第1期22-26,共5页Gold

基　　金：河南省国土资源厅2010年省级探矿权采矿权使用费及价款(地勘基金)地质勘查项目(豫财招标采购〔2011〕36号)

摘　　要：老湾金矿床位于桐柏—大别有色金属成矿带上,其矿体赋存于中元古界龟山岩组的斜长角闪片岩、斜长角闪岩及变质石英岩中。为增加矿产资源量,在系统总结老湾金矿床地质特征的基础上,运用物化探综合手段,发现已圈定的矿体深部发育有Au、Ag、As、Sb元素组合异常,且位于磁、重力及激电异常梯度带上;为验证其深部的含矿性,施工的钻探工程已确认标高-900 m以下地层具有良好的找矿前景。The Laowan Gold Deposit is located in Tongbai-Dabie nonferrous metal metallogenic belt,and its orebodies occur in amphibolie gneiss,amphibolie and metaquarzite of Pt2 Guishan Formation.Based on the geological characteristics of the Laowan Gold Deposit,it is found that there are anomalous combinations of Au,Ag,As and Sb in deep ore bodies,and they are located in the magnetic and gravitational and the gradient band of induced electrical anomaly.In order to verify ore-bearing properties in the deep ore bodies,the construction drilling project has been carried out,confirming that the stratum with elevation below -900 m has good prospecting potentials.

关 键 词：地质特征 物化探 深部找矿 找矿预测 老湾金矿床 

分 类 号：TD15[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]