摘要
在通过对遵义市锰矿整装勘查区及周边所有探矿工程资料整理、分析研究的基础上,结合野外大比例尺专项地质填图、剖面实测和测试的成果。将贵州遵义二叠系锰矿与华南古天然气渗漏沉积型锰矿床成矿理论进行详细对比,认为遵义锰矿总体是"内生外成",成锰物质主体来自地幔,遵义锰矿属"古天然气渗漏沉积型锰矿床",借鉴古天然气渗漏沉积型锰矿床的成矿理论和研究方法,运用遵义锰矿裂陷槽盆地结构的划分、同沉积断裂的识别和中心相、过渡相和边缘相判别标志,在断陷盆地中喷溢口及附近,发现矿石及其顶底板具有古天然气渗漏沉积型锰矿床独有的结构构造、同位素、生物组合等特征。研究认为遵义成锰盆地至少存在5个气液渗漏喷溢口,分布于Ⅲ级断陷盆地内,每一个喷溢口构成一个相对独立的气液渗漏喷溢沉积成矿系统,遵义锰矿床是形成由若干个气液渗漏喷溢沉积成矿子系统构成的沉积成矿系统。贵州遵义二叠纪锰矿成矿的气液渗漏喷溢口的发现,对遵义锰矿"内生外成"成因研究提供了宏观地质证据,为建立深部锰矿找矿预测模型提供了重要依据,为研究遵义锰矿的古天然气渗漏沉积型锰矿床成矿系统具有重要意义。
By reorganize,analyses and study the exploration engineering information of manganese fully-equipped exploration area in Zunyi and the nearby area,with the results of field big scale special geologic map,section test and measurement,the metallogenic theory of Zunyi Permian manganese deposit and ancient natural gas seepage sedimentary-type manganese deposit are compared,it＇s thought the Zunyi manganese deposit generally emerge inside and form outside,the manganese forming material comes from the mantle,Zunyi manganese deposit belongs to natural gas seepage sedimentary-type manganese deposit. According to the metallogenic theory and studying method of ancient natural gas seepage sedimentary-type manganese deposit,use the division of fracture basin structure,the recognition of synsedimentary fault and distinguish signs of intermediate phase,transient phase and border facies,the special structure,isotope and biological composition features of ancient natural gas seepage sedimentary-type manganese deposit are found in the ore and the roof in the fracture basin spout and nearby area. It＇s thought there are at least 5 gas-liquid seepage spouts in Zunyi manganese deposit,distribute inⅢ fracture basin,each spout forms a isolated gas-liquid seepage eruption sedimentary matallogenic system,Zunyi manganese is a sedimentary metallogenic system formed with several gas-liquid seepage sedimentary metallogenic subsystems. The discovery of gas-liquid seepage spout of Permian manganese ore-forming in Zunyi affords macroscopic geologic evidence for the genesis study the‘emerge inside and form outside＇of Zunyi manganese deposit,it＇s very important for study the ancient natural gas seepage sedimentary-type manganese metallogenic system of Zunyi manganese deposit.
作者
汪洋
刘志臣
陈登
钟月丽
秦先进
WANG Yang;LIU Zhi-chen;CHEN Deng;ZHONG Yue-li;QIN Xian-jin(102 Geological Party,Guizhou Bureau of Geology and Mineral ExploraTion and Development,Zunyi553003,Guizhou,China;Science and Technology Innovation Team of Prediction and Evaluation ofManganese Resources in Guizhou Province,Tongren 554300,Guizhou,China;School of EarthScience,China University of Geosciences,Wuhan 430074,Guizhou,China)
出处
《贵州地质》
2018年第2期81-87,95,共8页
Guizhou Geology
基金
中国地质调查局<中国矿产地质与成矿规律综合集成和服务>(121201103000150020)及其二级项目<贵州锰矿成因与成矿规律>(DD20160346)
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)
贵州省遵义锰矿整装勘查找矿预测及与技术运用示范项目(0747-1861SITCN150)
贵州省地质矿产勘查开发局地质科研项目(黔地矿科合[2016]3号)联合资助
关键词
贵州遵义
二叠纪锰矿
盆地
气液渗漏喷溢口
意义
Zunyi Guizhou
Manganese deposit in Permian
Basin
Gas-liquid seepage spout
Significance
