摘要
温区矿区位于西藏冈底斯斑岩铜矿带东部南缘,成矿条件优越,已发现多处大中型铜(钨)多金属矿床,本矿区现阶段矿床类型主要为矽卡岩型钨(铜)矿。此次工作是在1∶5万水系沉积物温区Cu-Mo-W异常区内开展1∶2.5万岩屑地化测量,共圈定61个异常,大体构成3个异常带,分别是Hy-1 Au-Ag-As-BiMo、Hy-2 Au-Ag-As-Pb、Hy-3 Cu-Mo-W。通过异常验证,在Hy-3 Cu-Mo-W综合异常带见矿效果较好,值得下一步继续研究;其他两个综合异常前缘晕较发育面积大,也显示深部具有较大的找矿空间。本文同时讨论了该矿区成矿有利的条件,提出了在该区带寻找矽卡岩型铜钨多金属矿水系沉积物、土壤或岩屑地球化学元素组合有其独特性,对下一步地质找矿有较好的指导意义。
Wenqu evaluation area is located in the southern margin on east side of Gangdise porphyry copper belt,Tibet,with favorable metallogenic conditions.Many large and medium-sized copper(tungsten)polymetallic deposits have been found in this area.At present,the deposit type in this mining area is mainly skarn type tungsten(copper)deposit.The 1∶25000 lithic geochemical surveys were carried out in the Cu-Mo-W anomaly areas of 1∶50000 stream sediment area in Wenqu,61 anomalies were delineated and these anomalies could be generally divided into three anomalies,such as HY-1 Au-Ag-As-Bi-Mo,HY-2 Au-Ag-As-Pb and HY-3 Cu-Mo-W.Through anomalies verification,good mineralization has been found in HY-3 Cu-Mo-W comprehensive anomaly zone,which is worthy further study.Other two comprehensive anomalies have large front halo areas showing great prospecting potential in the deep part.At the same time,this paper discussed the favorable conditions of mineralization in the study area,and it also pointed out that the geochemical elements group in stream sediment,soil or cuttings has its own uniqueness for searching skarn type Cu-W polymetallic deposits,which has a good guiding significance for the further geological prospecting.
作者
吴志山
刘阳
陈龙照
郑杰
张凯
詹勇
江化寨
沈开和
吴海军
WU Zhishan;LIU Yang;CHEN Longzhao;ZHENG Jie;ZHANG Kai;ZHAN Yong;JIANG Huazhai;SHEN Kaihe;WU Haijun(Institute of Mineral Recourses Research,China Metallurgical Geology Bureau,Beijing 101300,China;The Second Geological Exploration Institute of China Metallurgical Geology Bureau,Fuzhou 350000,Fujian,China;Fujian Geo-Technical Engineering Reconnaissance Research Institute Co.,Ltd.,Fuzhou 350000,Fujian,China)
出处
《矿产勘查》
2021年第5期1199-1206,共8页
Mineral Exploration
基金
中国地质调查局“西藏乃东县温区一带铜多金属调查评价项目”(DD12120114068801)资助。
关键词
冈底斯成矿带
综合异常带
地球化学
温区
gangdise metallogenic belt
comprehensive anomaly zone
geochemistry
Wenqu
