东昆仑西段尕克达坂地区高精度磁测异常特征  

Study on the anomaly characteristics of high-precision magnetic survey in the Gakedaban Area of the western section of East Kunlun

作　　者：任玖 白云 徐云峰 REN Jiu;BAI Yun;XU Yunfeng(Sichuan Water Conservancy College,Chengdu 611231,China;Sichuan Water Conservancy Innovation and Development Research Institute,Chengdu 611231,China;Sichuan Institute of Comprehensive Geological Survey,Chengdu 610081,China;Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province,Chengdu 610081,China)

机构地区：[1]四川水利职业技术学院,四川成都611231 [2]四川水利创新发展研究院,四川成都611231 [3]四川省综合地质调查研究所,四川成都610081 [4]稀有稀土战略资源评价与利用四川省重点实验室,四川成都610081

出　　处：《中国矿业》2024年第S01期587-594,共8页China Mining Magazine

基　　金：青海省地质勘查基金项目“青海省格尔木市尕克达坂一带1∶5万航磁异常查证”资助(编号:青地调勘[2013]357号)

摘　　要：尕克达坂地区位于青海省格尔木市乌图美仁乡那陵郭勒河上游南岸,东昆仑山脉南坡西段,该地区出露中三叠世和早泥盆世侵入岩,岩性主要为黑云母花岗闪长岩和花岗闪长岩,见钾长花岗岩和花岗岩脉,已发现矿化蚀变带2条,见褐铁矿化及铜矿化等蚀变。本文在青海省地勘基金项目资助下,在研究区开展了1∶10000高精度磁法测量工作,圈定出地面磁异常9个,推断C3、C4、C8、C9磁异常具有寻找与中酸性岩浆活动有关铜多金属矿的条件,推测断层破碎带4条,断层破碎带附近具有寻找构造破碎蚀变带金多金属矿的可能。The study area is located in the area of the south bank of the upper reaches of the Naling Gol River in Utu Meiren Township,Golmud City,Qinghai Province,and the west section of the southern slope of the East Kunlun Mountain Range.In this paper,under the support of the Qinghai Provincial Geological Exploration Fund project,a 1∶10,000 high-precision magnetic survey is carried out in the study area,and the Middle Triassic and Early Devonian intrusive rocks are exposed in the Gakdaban Area,and the lithology is mainly biotite granodiorite and granodiorite,potassium felds granite and granite are found,2 mineralized alteration zones are found,limonite mineralization and copper mineralization are found,9 ground magnetic anomalies are delineated by magnetic measurement,and it is inferred that the C3,C4,C8 and C9 magnetic anomalies had the conditions to find copper deposits related to medium acid magma.It is speculated that there are 4 fault fracture zones,and there is a possibility of searching for gold deposits in tectonic fracture and alteration zones near the fault fracture zones.

关 键 词：东昆仑 尕克达坂 高精度磁法测量 异常特征 

分 类 号：TD166[矿业工程—矿山地质测量]