摘要
甘沙坡铅锌矿地处滇东南老君山锡、铜、铅、锌多金属成矿区北侧外围边缘特定的构造环境,赋矿层位为泥盆系下统坡脚组地层,目前发现了5个控制程度较高的、达到工业意义的矿体。通过工作及综合分析,初步认为甘沙坡矿区的铜铅锌多金属矿属于喷流沉积型铜铅锌多金属矿。地表的矿化露头是直接的找矿标志,泥盆系下统坡脚组上段(D1p2)灰白色、浅灰色硅质岩是岩性标志,硅化、黄铁矿化及矽卡岩化是围岩蚀变标志,铜、铅、锌、银等化探异常是地球化学标志。
Ganshapo lead-zinc mine is located in the specific tectonic environment of the north peripheral margin of tin,copper,lead and zinc polymetallic metallogenic region in Laojunshan of southeastern Yunnan,the ore-bearing bed is located in lower slope toe of Devonian system,at present five ore bodies with high control level and industrial significance were found.It is tentatively suggested that the copper-lead-zinc polymetallic ore of Ganshapo mine belongs to copper-lead-zinc polymetallic ore of sedimentary rock-hosted exhalative sulfide deposits through working and comprehensive classification.The mineralization outcrop on the earth surface is the direct prospecting criteria,the offwhite,light grey silica rock of the upper part(D1p2)of the lower slope toe of the Devonian system is the lithologic criteria;silicification,pyritization and skarn lithification is the sign of wall rock alteration;the geochemical anomaly of Cu,Pb,Zn,Ag and so on is the geochemical sign.
作者
王真鑫
郭亚奔
郭同川
WANG Zhen-xin;Guo Ya-beng;GUO Tong-chuan(Kunming Chengxin Investigation and Design Co.,Ltd.,Kunming,Yunnan 654100,China;Yunnan Institute of Safety Science and Technology,Kunming,Yunan 650000,China;Kunming Kansheng Mining Industry Co.,Ltd.,Kunming,Yunnan 650000,China)
出处
《云南冶金》
2020年第4期8-12,共5页
Yunnan Metallurgy
关键词
西畴县甘沙坡
铅锌矿
地质特征
矿床成因
找矿标志
Ganshapo in Xichou County
lead-zinc ore
geologic feature
deposit cause
prospecting criteria
作者简介
王真鑫(1985-),男,重庆人,工程师,主要从事矿山地质方面的研究工作。
