贵州遵义市深溪隐伏富锰矿床主要地质特征  

The main geological characteristics of the concealed manganese-rich depositin Shenxi,Zunyi,Guizhou Province

作　　者：汪洋[1] 陈登[1,2] 刘志臣 肖亮[1] 代德飞 肖林 WANG Yang;CHEN Deng;LIU Zhichen;XIAO Liang;DAI Defei;XIAO Lin(The Geological Team No.102,Guizhou Bureau of Exploration and Development of Geology and Mineral Resources,Zunyi 563003,Guizhou,China;Engineering Technology Innovation Center for Mineral Resources Exploration in Bedrock Zones,Ministry of Natural Resources,Guiyang 550081,Guizhou,China)

机构地区：[1]贵州省地矿局一○二地质大队,贵州遵义563003 [2]自然资源部基岩区矿产资源勘查工程技术创新中心,贵州贵阳510081

出　　处：《矿产与地质》2020年第4期689-695,共7页Mineral Resources and Geology

基　　金：贵州省地质矿产勘查开发局地质科研项目(黔地矿科合〔2018〕35号);贵州省科技厅基金项目“贵州省锰矿资源预测评价科技创新人才团队”(黔科合平台人才〔2018〕5618);贵州省优秀青年科技人才项目(黔科合平台人才〔2019〕5654);中国地质调查局贵州遵义锰矿整装勘查矿产地质调查与找矿预测项目(DD20190159-16);贵州省自然科学基金项目(黔科合支撑〔2019〕2868)共同资助。

摘　　要：位于贵州遵义国家锰矿整装勘查区内的深溪隐伏富锰矿床,是贵州省内首次发现的二叠纪富锰矿床,提交(332)+(333)资源量1178万吨,锰平均品位为26.98%,矿体平均厚度为2.47 m,矿体赋存于二叠系茅口组第三段。矿石矿物以菱锰矿为主,斑杂状、浸染状和角砾状构造。成因类型为“内生外成气液喷溢沉积型”锰矿床,富锰矿产于喷溢沉积成矿系统的中心相区,深溪富锰矿床地处茅口晚期深溪Ⅳ级地堑盆地中心。地表为燕山期形成的NNE向断层和EW向展布的虾子复向斜,对深部锰矿体未造成影响,富锰矿体保存十分完整,目前尚未圈边,深部仍具有较大的找矿潜力。Shenxi concealed manganese-rich deposit is located in the national manganese exploration area of Zuny,Guizhou Province.It is the first Permian manganese-rich deposit discovered in Guizhou Province.The submitted(332)+(333)mineral resources are 11.78 million tons,the average manganese grade is 26.98%,and the average thickness of the orebody is 2.47 m.The orebody is hosted in the third section of Maokou Formation of Permian.The ore mineral is mainly rhodochrosite with mottled,disseminated and brecciated structures.The genetic type is"endogenetic and exogenetic gas-liquid exhalation sedimentary type"manganese deposit.The manganese-rich orebody is located in the central face area of exhalation sedimentary metallogenic system.Shenxi manganese-rich deposit is located in the center of Shenxi Level IV graben basin in the late Maokou period.In the surface there are the NNE fault formed in Yanshan period and the Xiazi synclinorium in EW direction,which have no impact on the deep manganese orebody.The manganese rich orebody is well preserved and has not yet been encircled.There is still a great prospecting potential in the deep part.

关 键 词：富锰矿床 地质特征 二叠纪 贵州遵义 

分 类 号：P618.32[天文地球—矿床学]