摘要
青海省都兰县益克特开特铜多金属矿位于昆中断裂带南测的东昆仑南坡俯冲增生杂岩带(IV9-1)东部,可可沙向斜西部北西翼。通过地质、物化探综合调查研究,总结了构造、蚀变、物探异常等找矿标志,发现1条构造矿化蚀变带,延长200m~3500m,宽度2m~33m不等。圈定4处综合异常及6条矿化带。其中:金铜矿化矽卡岩带1条(SK1),金含量达0.28g/t;黄铁矿化钴矿化矽卡岩带1条(SK2),首次发现钴矿化;硅化铜构造矿化蚀变带3条(Sb1、Sb3、Sb4),硅化黄铁矿构造矿化蚀变带1条(Sb2),TiO2含量普遍大于5%,最高达到9.6%。研究结果表明:矿体形态产状严格受北东向构造破碎带控制,区内矿化成因类型为构造热液充填-交代型,圈定的6条矿化带具有较好的找矿前景。
The Yiketekate copper polymetallic deposit in Dulan County,Qinghai Province is located in the eastern part of the subduction and accretion complex zone(IV9-1)on the southern slope of the East Kunlun Mountains,south of the Kunzhong Fault Zone,on the northwest wing of the western part of the Kekesha syncline.Through comprehensive investigation and research of geology,physical and chemical exploration,prospecting indicators such as structure,alteration,and geophysical anomalies were summarized.One structural mineralization alteration zone was discovered,extending 200m~3500m and varying in width from 2m~33m.Define 4 comprehensive anomalies and 6 mineralized zones.Among them,there is one gold copper mineralized skarn belt(SK1)with a gold content of 0.28g/t;One Huangtie mineralization cobalt mineralization skarn belt(SK2)was discovered,marking the first discovery of cobalt mineralization;There are three mineralized alteration zones(Sb1,Sb3,Sb4)in the silicified copper structure,and one mineralized alteration zone(Sb_(2))in the silicified pyrite structure.The TiO2 content is generally greater than 5%,with the highest reaching 9.6%.The research results indicate that the morphology and orientation of the ore body are strictly controlled by the northeast trending tectonic fracture zone,and the mineralization genesis type in the area is tectonic hydrothermal filling metasomatism.The six mineralized zones delineated have good prospecting prospects.
作者
陈后扬
蒋哲
CHEN Hou-yang;JIANG Zhe(Geophysical&Geochemical Exploration Brigade Of Jiangxi,Nanchang 330009,China)
出处
《世界有色金属》
2024年第13期55-57,共3页
World Nonferrous Metals
基金
青海省都兰县地方财政地质勘查基金项目(青国土资矿[2012]177号、青国土资矿[2013]257号)。
关键词
铜多金属矿
青海省都兰县
地质特性
找矿前景
copper polymetallic ore
Dulan County,Qinghai Province
Geological characteristics
Prospecting prospects
