摘要
肃北县老圈井铜多金属矿位于红柳园-账房山塔里木古陆陆缘裂陷带老圈井银多金属成矿远景区,成矿地质背景良好,具很好的找矿前景。在绿泥石英千枚岩与含炭泥灰岩中较发育的石英细脉是寻找金及其它成矿元素的直接找矿标志;层间断裂形成的破碎蚀变带,为后期热液成矿提供了有利的成矿空间;硅化、绿泥石化、绢云母化以及呈明显红褐色的褐铁矿化带,是矿化存在的直接找矿标志。勘查区内发现以褐铁矿化为主的破碎蚀变带3条,对其内的铁帽及Au、V等化探异常建议继续加强找矿力度,圈定远景工作靶区,为进一步开展普查工作提供依据。
The Laoquanjing copper polymetallic deposit in Subei County is located in the Hongliuyuan Zhangfangshan Tarim ancient land margin rift zone,and the Laoquanjing silver polymetallic mineralization prospect area has a good geological background for mineralization and good prospecting prospects.Quartz veinlets developed in chlorite quartz phyllite and carbonaceous marl are direct prospecting indicators for gold and other ore-forming elements;The fractured alteration zone formed by interlayer faults provides favorable mineralization space for later hydrothermal mineralization;Silicification,chloritization,sericite and obvious reddish brown ferritization zone are direct prospecting indicators for the existence of mineralization.Three fractured alteration zones dominated by ferritization are found in the exploration area.It is suggested to continue to strengthen the prospecting for gossan,Au,V and other geochemical anomalies,delineate the target area for prospective work,and provide a basis for further general survey.
作者
杨锋
王俊
YANG Feng;WANG Jun(Zhangye Mineral Exploration Institute of Gansu Nonferrous Metals Geological Exploration Bureau,Zhangye 734000,China)
出处
《世界有色金属》
2023年第5期58-60,共3页
World Nonferrous Metals
关键词
老圈井铜多金属
找矿标志
铁帽
肃北县
Laoquanjing copper polymetallic
Prospecting markers
Iron hat
Subei County
