毛红伟.西昆仑北缘主乌鲁克锰矿床地质特征及成因探讨[J].地质找矿论丛,2019,34(1):72-77
西昆仑北缘主乌鲁克锰矿床地质特征及成因探讨
The geological characteristics of Zhuwuluke manganese ore deposit in west margin of Kunlun mountains, Xinjiang
投稿时间:2018-07-23  
DOI:10.6053/j.issn.1001-1412.2019.01.011
中文关键词:  主乌鲁克锰矿  海相沉积型锰矿  晚古生代陆缘裂谷  黑色泥质碳质页岩  菱锰矿  矿床地质特征  矿床成因  西昆仑  新疆
英文关键词:Zhuwuluke Mn deposit  marine sedimentary Mn deposit type  Late palaeozoic continent marginal rift  black politic and carbonaceous shale  rhodochrosite  geological characteristics of the deposit  genesis of the deposit  The west Kunlun mountains  Xinjiang
基金项目:
作者单位
毛红伟 中国冶金地质总局新疆地质勘查院, 乌鲁木齐 830063 
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中文摘要:
      主乌鲁克锰矿床位于西昆仑北缘晚古生代陆缘裂谷恰尔隆弧盆系的北部,含锰层位为下石炭统他龙群细碎屑岩夹碳酸盐岩,锰矿层为黑色泥质碳质页岩夹铁锰质泥晶灰岩。锰矿体严格受地层的控制,呈NWW向展布,延伸较为稳定,规模较大,共见有13条锰矿体,其中有3个矿体较大构成主矿体;锰矿石以原生菱锰矿为主体,氧化矿石不多。该矿床与近年发现的玛尔坎苏地区锰矿床既有相似之处,又有明显不同,矿床类型为在深海-半深海陆缘裂谷环境中形成的与黑色碳质页岩有关的沉积型锰矿床,锰矿的成矿时代为早石炭世。由于下石炭统他龙群是西昆仑地区新发现的含锰层位,具有较大的找矿潜力,应加强矿床外围及深部的找矿工作。
英文摘要:
      Zhuwuluke Mn deposit occurs at the north part of the Late palaeozoic continent marginal Qiaerlong arc basin system in the north margin of Kunlun mountains. Fine clastic rock intercalated with carbonate rock of Lower carboniferous Talong Group is the manganiferous horizon and Mn ore horizon the dark carbonaceous shale intercalated with Fe, Mn pelitic crystal limestone. The Mn ore bodies are in large scale, strictly controlled by strata, extending relatively stable in NWW direction. There are 13 Mn ore bodies of which 3 larger ones are the main ore bodies. The ore is dominated by primary Mn ore with a little oxidized Mn ore. The deposit is both similar to and different with the recently discovered Mn deposits in Maercansu area. It is a black shale-related sedimentary Mn deposit formed under abyssal-semi-abyssal continent marginal rifting environment in the Early Carboniferous Epoch. The Lower Carboniferous Talong Greoup is a newly discovered manganiferous horizon thus potential for further prospecting to depth and surroundings of the deposit.
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