地质通报2018，Vol.37Issue(2)：283-298,16.
内蒙古东乌旗达亚纳地区地质矿产调查与成岩-成矿作用
摘要
Abstract
1:50000 geological and mineral survey shows that the main strata in Dayana area of Dong Ujimqin Banner in Inner Mon-golia are the Early Devonian Niqiuhe Formation and the Late Carboniferous- Early Permian Gegenaobo Formation, followed by the Late Jurassic,Neogene and Quaternary strata.The Niqiuhe Formation is composed of shallow marine sediments,formed on the passive continental margin.The Gegenaobao Formation is related to the subduction of the Siberian plate.The structure of the study area is mainly composed of NE-striking fold structure.The faults in the study area occur in different groups,and the ore-controlling fault is mainly NE-and nearly NS-striking faults.There are two periods of magmatic intrusion and associated polymetallic mineral-ization in the study area.The formation of polymetallic deposits is characterized by various types,long mineralization time span and diverse tectonic settings. The ore deposits include hydrothermal-filled lead-zinc-silver polymetallic deposits, tectonic alteration rock type gold deposits, and high-medium-temperature hydrothermal tungsten-molybdenum deposits (wolframite-bearing quartz vein type).These deposits were formed in continental-arc magmatism caused by subduction of oceanic plate,continental-continen-tal collision and post-orogenic stretched collapse background, respectively. The long-term tectonic-magmatism in the study area provides good geological conditions for mineralization,and hence the area has a good prospecting potential for polymetallic deposits.关键词
矿产地质调查/泥鳅河组/格根敖包组/钨钼矿床/成矿背景/内蒙古东乌旗Key words
geological and mineral resources survey/Niqiuhe Formation/Gegenaobao Formation/tungsten-molybdenum deposit/geological setting for mineralization/Dong Ujimqin Banner分类
天文与地球科学引用本文复制引用
佘宏全,蔡明海,张令进,向安平,李进文,杨郧城,李强,彭正安,唐兰..内蒙古东乌旗达亚纳地区地质矿产调查与成岩-成矿作用[J].地质通报,2018,37(2):283-298,16.基金项目
国家重点基础研究发展计划《蒙古-鄂霍茨克洋构造体制成矿系统物质组成与过程》(编号:2017YFC0601303)和中国地质调查局项目《内蒙古东乌旗矿产地质调查及1:5万填图试点》(编号:DD20160124) （编号:2017YFC0601303）
