辽宁调兵山硅灰石矿床地质特征及找矿潜力  

Potential for ore prospecting in Diaobingshan wollmastonit deposit

作　　者：马忠林[1] 赵东波[1] 陈元江[1] 王建复[1] 吴华[1] 

机构地区：[1]辽宁省第九地质大队,辽宁铁岭112000

出　　处：《地质找矿论丛》2012年第2期196-200,共5页Contributions to Geology and Mineral Resources Research

基　　金：辽宁省矿产资源补偿费项目(编号:〔2008〕40号;〔2009〕15号;〔2010〕26号)资助

摘　　要：辽宁省调兵山硅灰石矿为特大型矿床,矿床分为3个矿段,控制程度较高的为泉眼沟矿段。硅灰石矿体主要产于古生界富拉堡子岩组硅化大理岩层内,矿体受层位、岩性和岩浆岩的控制。矿体走向NEE向,倾向SE,矿化带长约2 000m,出露宽度14～65m。矿化带伴生有金、钼、铅锌、银等金属元素。鉴于矿体与围岩有较显著的物性差异,特选择覆盖区段进行激电中梯剖面测量,获得3条走向NNE向的电阻率异常带。推测视电阻率在2 400～900Ω.m之间的异常区域为隐伏大理岩和硅灰石矿体赋存的最有利部位。6个钻孔的验证均见到硅灰石矿化,揭示了区内进一步扩大硅灰石储量的远景。Diaobingshan wollastonite deposit is a super-large ore deposit. Regionally, it occurs in middle of the east ore belt. There are three ore blocks of which Dongquangoublock is closely controlled. Wollas- toniteore bodies are mainly in silicified marble of Paleozoic Fulabuzi formation trending NNE and dipping to SE. They are controlled by horizon, lithology and magmatic rock. The ore belt is 2 000 m long with outcrop 14-65 m wide and by-products of Au, Mo, Pb, Zn and Ag. Because physical property of the ore body is quite varied with that of the wall-rock three IP intermediate gradient sections are selectively sur- veyed at the area with sedimentary cover and three resistivity anomaly trending NNE are located. It is in- ferred that 2 400-900Ω .m anomly implies the space where blind marble and wollastonite body occur. Six test drill holes hit wollastonite mineralization thus the working area is potential for exploration.

关 键 词：调兵山硅灰石矿床 地质特征 激电异常 深部找矿 找矿潜力 辽宁省 

分 类 号：P612[天文地球—矿床学] P619.23[天文地球—地质学]