内蒙古赤峰地区上二叠统砂(页)岩型铜(金)矿的发现及其地质意义  

Discovery and Geological Implication of the Upper Permian Sandstone(Shale)-Type Copper(Gold)Deposits in Chifeng, Inner Mongolia

作　　者：东野脉兴[1] 朱兴国 顾伟 祁才吉[1] 代晓光[1] 焦学涛 

机构地区：[1]中化地质矿山总局地质研究院,涿州072754 [2]内蒙古锡林郭勒盟鸿泰矿业有限责任公司,赤峰024000 [3]山东省地矿工程勘察院内蒙古分院,赤峰024000

出　　处：《地质调查与研究》2015年第2期108-117,共10页Geological Survey and Research

基　　金：内蒙古巴林右旗馒头沟铜多金属矿详查(SDDK80101)

摘　　要：2007年至2010年原赤峰市金田矿业有限责任公司在勘查巴林右旗馒头沟铜(金)矿时,发现该矿成因类型属于砂(页)岩型铜(金)矿,容矿岩石是上二叠统林西组砂页岩。矿区构造简单,林西组地层为一向SE倾的单斜构造。矿区林西组地层厚度大于600 m,目前已发现含矿地层厚度约214.7 m,含8个矿层,矿体呈层状、似层状、透镜状,矿石矿物以他形粒状黄铜矿和自然金为主,均呈微细浸染状散布于砂页岩中,局部有成岩期后形成的细脉状,地层普遍含黄铁矿。此类矿床在内蒙古乃至北方属首次发现,其研究成果不仅及时指导了馒头沟矿床的勘查,而且对内蒙古乃至北方上二叠统寻找同类矿床具有重要的意义。The Mantougou Copper（gold）deposit, hosted by the sandstone-shale of upper Permian Linxi formation,was explorated from 2007 to 2010 in Baliyouqi. Research shows that it is a typical sandstone（shale）-type copper（gold）deposit. The structure of the deposit is simple. Linxi Formation is a south-east direction monoclinic structure. The thickness of Linxi Formation greater than 600 meters, it has been found that the ore-bearing strata thickness is about 214.7 meters, which contain eight ore-layers. The orebody shows stratified, stratoid and lenticular, and the ore minerals mainly is allotriomorphic- granular chalcopyrite and native gold, which all show a fine disseminated scattered sand shale, locally behold fine veins that formed after diagenesis. This formation generally contain pyrite.This discovery,which was first found in Inner Mongolia,not only guides the prospecting of mantougou deposit,but also have important theoretical significance and directive function in finding similar ore deposits in upper Permian.

关 键 词：内蒙古赤峰地区 上二叠统 馒头沟铜(金)矿 砂(页)岩型铜矿 

分 类 号：P618.41[天文地球—矿床学]