摘要
近年在方山金锑矿田发现了多个钴矿点。在野外调查基础上,总结方山地区钴矿化特征,分析钴矿化成因并提出下步找矿方向。区内钴矿主要呈似层状、透镜状、串珠状赋存于方山背斜两翼陡山沱组的层间破碎带中,与金、锑、铅锌等矿化密切共生,以含黄铁矿—石英细脉的碎裂白云岩、角砾岩含矿最好,其成因为中低温热液型。目前该区已圈定氧化钴矿体7个、硫化钴矿体1个,以陡山沱组底部层间破碎带AP 1中矿化较稳定。结合区内构造规模、垂向分带性和多期热液蚀变特征来看,方山背斜两翼深部具有较大的钴矿找矿前景。
Several cobalt occurrences has been found in Fangshan gold-antimony ore field in recent years.On the basis of field investigation,the characteristics of cobalt mineralization in Fangshan area are summarized,the genesis of cobalt mineralization is analyzed and the next prospecting direction is put forward.The cobalt mineralization in the study area is mainly layered,lenticular and beaded in the interlayer fracture zone of Doushantuo Formation of the Fangshan anticline.It is closely associated with gold,antimony,lead and zinc mineralization.The cataclastic dolomite and breccia containing pyrite-quartz veins are the best ore-bearing rocks,and its genesis is stratabound medium-low temperature hydrothermal deposit.Seven cobalt oxide bodies and one cobalt sulfide body have been delineated at present,and the mineralization is relatively stable in the interlayer fracture zone AP 1 at the bottom of the Doushantuo Formation.Combined with the structural scale,vertical zoning and multi-stage hydrothermal alteration characteristics in the area,the deep part of the two wings of the Fangshan anticline has a large cobalt ore prospecting prospect.
作者
李巍
杨斌
黄伟杰
吴金昊
聂金诚
李泉
Li Wei;Yang Bin;Huang Weijie;Wu Jinhao;Nie Jincheng;Li Quan(Fourth Geological Brigade of Hubei Geology Bureau,Xianning,Hubei 437100)
出处
《资源环境与工程》
2023年第1期35-41,共7页
Resources Environment & Engineering
基金
湖北省崇阳县台山地区钴赋存状态及物质来源研究(KJ2019-8)。
关键词
方山金锑矿田
钴矿
层间破碎带
中低温热液矿床
找矿方向
Fangshan gold-antimony ore field
cobalt mineralization
interlayer fracture zone
medium-low temperature hydrothermal deposit
prospecting direction
