甘肃大店沟金矿床剥蚀程度及深部找矿方向  

Denudation Degree and Deep Prospecting direction of dadiangou gold deposit in Gansu Province

作　　者：曹瑞荣 缪广 曹雪峰 艾忠林 来召 王旭阳 CAO Rui-rong;MIAO Guang;CAO Xue-feng;AI Zhong-lin;LAI Zhao;WANG Xu-yang(Gansu Zhongjin Gold Mining Co.Ltd.,Longnan 742400,China;Beijing Jinyou Geological Exploration Co.Ltd.,Beijing 100011,China)

机构地区：[1]甘肃中金黄金矿业有限责任公司,甘肃陇南742400 [2]北京金有地质勘查有限责任公司,北京100011

出　　处：《世界有色金属》2023年第11期49-51,共3页World Nonferrous Metals

基　　金：中国黄金集团地质科研专项(WKY201603)。

摘　　要：大店沟金矿位于甘肃省陇南市北东部,是近年来新发现的中型金矿床,为评价矿床深部资源潜力及找矿方向,本文在分析矿体产出状态、矿化类型垂向变化等特征的基础上,结合矿体黄铁矿热电性剥蚀率定量计算,确定大店沟金矿总体剥蚀率73.69%,表明中上部遭受了较大程度的剥蚀,但深部仍有一定找矿前景和资源潜力。矿床北东段剥蚀程度较大,而南西段剥蚀程度相对较小,为下一步找矿重点方向。Located in the northeast of Longnan City,Gansu Province,the dadiangou gold deposit is a newly discovered medium-sized gold deposit in recent years.In order to evaluate the deep resource potential and prospecting direction of the deposit,the occurrence state of ore body and the vertical change of mineralization type are analyzed and the thermoelectric denudation rate of pyrite is calculated.The overall denudation rate of the deposit is 73.69%.It shows that the middle and upper parts ofthedeposit have suffered a large degree of denudation,and there is still a certain prospecting prospect and resource potential in the deep.The denudation degree of the deposit in the northeast section is relatively large,while the southwest section is relatively small.It shows that the southwest section is the key direction of prospecting in the next step.

关 键 词：大店沟金矿 韧脆性剪切带 黄铁矿热电性 剥蚀率 深部找矿方向 

分 类 号：P618.51[天文地球—矿床学]