个旧锡矿老厂矿田接触带锡铜矿化特征及成矿预测  

THE CONTACT SN-CU METALLOGENESIS AND PROGNOSIS OF LAOCHANG OREFIELD,GEJIU SN DEPOSIT

作　　者：李彬 谢小明 魏超 Li Bin;XIE Xiao-ming;WEI Chao(Laochang Branch,Yunnan Sn Mining Company(Ltd),Gejiu 661000)

机构地区：[1]云南锡业股份老厂分公司,云南个旧661000

出　　处：《云南地质》2020年第2期216-223,共8页Yunnan Geology

摘　　要：个旧锡矿老厂锡矿田是中国著名的铜锡多金属矿产地,其锡矿达到特大型,伴生的铜、铅达到中型规模。经过数十年大规模的开采,赋存于浅部的矿体已基本告罄,深、边部找矿勘查已成当务之急。本文通过运用Dimine和Surfer软件技术,对个旧老厂矿田深部花岗岩体接触带的生产探矿过程中积累的原始钻探、构造-蚀变和地球化学数据进行数字化和可视化数学处理。结合老厂矿田已知控矿地质特征,建立了三维可视模型、隐伏花岗岩体侵入形态和锡、铜矿化强度模型,为矿山生产找矿提供新思路。Laochang Sn orefield of Gejiu Sn deposit is the very famous Sn-Cu multimetallic mine in China.The Sn resources is in the superlarge scale,and with the associated Cu and Pb resources in middle scale.Because of the mining in large scale for many years,the orebodies in the shallow part have been exhausted and the exploration in deep and marginal part is emergent.In this paper,we have the digital and visualization mathematic processing of original drilling,structure-alteration and geochemical data accumulated in exploration and production of deep granite contact in Laochang orefield with software Dimine and Surfer and in combination to the known geological feature of Laochang orefield and set up the 3D visual model,intrusion form of buried granite and Sn-Cu metallogenesis intensity model,provide the new idea for the mine production and exploration.

关 键 词：成矿预测 矿化强度 花岗岩形态 老厂矿田 云南个旧 

分 类 号：P618.41[天文地球—矿床学] P44[天文地球—地质学]