综合物探方法在青海祁漫塔格浅覆盖区铁多金属矿区深部找矿中的应用研究——以野马泉矿区为例  

Application of comprehensive geophysical method in deep prospecting of iron polymetallic deposit in Qimantage shallow covered area of Qinghai Province——A case study of Yemaquan deposit

作　　者：喻忠鸿 王金海 詹俊 张占雄 才智杰 刘国燕 曹创华[2,3] YU Zhonghong;WANG Jinhai;ZHAN Jun;ZHANG Zhanxiong;CAI Zhijie;LIU Guoyan;CAO Chuanghua(The Third Geological Exploration Institute of Qinghai Province,Xining 810000,Qinghai,China;School of Geosciences and Info-Physics,Central South University,Changsha 410083,Hunan,China;Geology Survey Institute of Hunan Province,Changsha 410116,Hunan,China)

机构地区：[1]青海省第三地质勘查院,青海西宁810000 [2]中南大学地球科学与信息物理学院,湖南长沙410083 [3]湖南省地质调查院,湖南长沙410116

出　　处：《矿产勘查》2023年第2期204-213,共10页Mineral Exploration

基　　金：青海省地质勘查基金项目(2017042014ky014);青海学者专项(QHS201802);青海省科技计划项目(2019-SF-141);青海省地矿局高层次人才培养项目(青地矿科[2021]61号);青海省中央引导地方科技发展资金计划项目(2021ZY017)联合资助。

摘　　要：祁漫塔格成矿带上的许多矿床位于山前覆盖区,地质和化探手段受到限制,以往找矿工作中以磁法寻找铁多金属矿产为主,弱磁异常区段的成矿潜力尚未进行研究。野马泉矿区是该成矿带上典型的矽卡岩铁多金属矿床,经过多年找矿工作后,磁异常已经评价完毕。为研究深边部,尤其是弱磁异常区的成矿潜力,近年来在该矿区开展了重力和广域电磁法联合方法,成功追索了矽卡岩型多金属矿带的深部延伸情况,综合物探方法在野马泉矿区深边部找矿中发挥了重要指导作用,表明地球物理探测方法在覆盖区深部找矿过程中具有明显的优势,为祁漫塔格成矿带覆盖区深边部找矿工作提供了成功经验。Many deposits in Qimantag metallogenic belt are located in the Piedmont coverage area, and the geological and geochemical exploration methods are limited. In the past, magnetic prospecting is mainly used to find iron polymetallic minerals, and the metallogenic potential in the weak magnetic anomaly section has not been studied. The Yemaquan mining area is a typical skarn iron polymetallic deposit in this metallogenic belt. After years of prospecting, the magnetic anomaly has been evaluated. In order to study the metallogenic potential in the deep edge, especially in the weak magnetic anomaly area, the combined method of gravity and wide area electromagnetic method has been carried out in the mining area in recent years, and the deep extension of skarn type polymetallic ore belt has been successfully traced. The comprehensive geophysical exploration method has played an important guiding role in deep edge prospecting in Yemaquan mining area, which shows that geophysical exploration method has obvious advantages in deep prospecting in overburden area. These studies provide successful experience for deep edge prospecting in the covered area of Qimantag metallogenic belt.

关 键 词：综合物探 深边部找矿 覆盖区 祁漫塔格 野马泉 青海 

分 类 号：P631.4[天文地球—地质矿产勘探]