摘要
西岔沟铜-铁-锰多金属矿位于塔里木板块东北缘,窑洞努如-公婆泉志留纪早古生代岩浆弧带上。华力西期二长花岗岩沿构造薄弱区大量侵入,并携带了大量的Cu、Fe、Pb、Zn、Mn、Ag和Mo等成矿元素,与围岩接触,形成糜棱岩化矽卡岩矿化带,在中温热液条件下富集形成方铅矿、闪锌矿、黄铁矿、磁铁锰矿和黄铜矿等金属矿物。经调查发现,矿区内存在南北2个矿化矽卡岩带,控制铜-铁-锰矿化体7条,与矿区内磁异常、激电异常有较好的对应关系。本文通过研究西岔沟铜-铁-锰多金属矿矿床地质特征及控矿因素,总结找矿标志,为北山地区同类型矿床的勘查提供依据。
The Xichagou copper-iron-manganese polymetallic deposit is located in the northeastern margin of the Tarim Plate and Yulu-Gongpoquan Silurian Early Paleozoic magmatic arc belt in Yaodong.The structural weak area intruded by the monzonitic granite of the variscan,and it carried a large number of ore-forming elements such as Cu,Fe,Pb,Zn,Mn,Ag and Mo.It contacted with the surrounding rock and formed mylonitic skarn mineralization zone.Under the condition of moderate temperature hydrothermal enrichment,it formed galena,sphalerite,pyrite,magnetite manganese,chalcopyrite and other metallic minerals.There are 2 mineralized skarn belts were found in the north and south of the mine,which control 7 Cu-Fe-Mn mineralized bodies and have a good correspondence with the magnetic anomaly and IP anomaly in the mine.In the research,the geological characteristics and ore-controlling factors of Xichagou copper-iron-manganese polymetallic deposit are studied,and the prospecting marks are summarized to provide a basis for the exploration of the same type of deposit in Beishan area.
作者
张旭东
倪杰才
刘牧星
杨申勇
冀新臣
ZHANG Xudong;NI Jiecai;LIU Muxing;YANG Shenyong;JI Xinchen(China Non-ferrous Metals Resources Geological Survey,Beijing 100012,China)
出处
《中国锰业》
2023年第5期47-51,共5页
China Manganese Industry
关键词
北山
西岔沟
地质特征
控矿成因
找矿标志
Beishan
Xicha ditch
Geological features
Ore-controlling origin
Prospecting mark
