贵州松桃锰矿整装勘查区道坨隐伏超大型锰矿床的发现及地质特征
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摘要
松桃道坨锰矿为2010年以钻探工程验证方式发现的一个全隐伏超大型锰矿床,其含矿地层为南华系大塘坡组第一段黑色炭质页岩,矿体埋深700～1500 m,矿床锰品位平均为18.66%,具有矿区地质构造简单、矿层产状平缓并完全隐伏、沉积成锰盆地保存完好和矿体厚度大、变化小、规模大、矿石品位高、质量稳定的特点。普查阶段提交锰矿资源量8343.25万t备案,位列我国锰矿第二,矿床远景资源储量1亿t以上,并极有可能成为我国最大的一处锰矿床。矿床成因类型为产于南华系大塘坡组下冲黑色岩系中的海相沉积碳酸锰矿床。
The Daotuo manganese deposit,which was discovered in 2010 through drilling programme,is a super - large sized and concealed manganese ore deposit.The ore - bearing strata is the black carbonaceous shale of the first member of Datangpo Group in Nanhua System,the manganese ore bodies are located about 700 - 1500 m below the surface.The average manganese grade is 18.66%.The ore deposit has the characteristics of simple geologic structure,gentle orebody geometry and completely concealed, stored in good condition after depositing in the manganese basin,large thickness of orebody,minor spatial variation,and large tonnage, high ore grade and stable ore composition.The estimated deposit resource tonnage is 83,432,500 tons of manganese ore submitted during the general exploration stage,which currently ranks as the second largest manganese deposit in China.The potential resource tonnage of the Songtao manganese deposit reaches over 100 million tons,and is very likely to become China' s largest manganese deposit. The deposit genesis belongs to the marine sedimentary manganese deposit which was formed in the black carbonaceous rock in the Datangpo Group of Nanhua System.
The Daotuo manganese deposit,which was discovered in 2010 through drilling programme,is a super - large sized and concealed manganese ore deposit.The ore - bearing strata is the black carbonaceous shale of the first member of Datangpo Group in Nanhua System,the manganese ore bodies are located about 700 - 1500 m below the surface.The average manganese grade is 18.66%.The ore deposit has the characteristics of simple geologic structure,gentle orebody geometry and completely concealed, stored in good condition after depositing in the manganese basin,large thickness of orebody,minor spatial variation,and large tonnage, high ore grade and stable ore composition.The estimated deposit resource tonnage is 83,432,500 tons of manganese ore submitted during the general exploration stage,which currently ranks as the second largest manganese deposit in China.The potential resource tonnage of the Songtao manganese deposit reaches over 100 million tons,and is very likely to become China' s largest manganese deposit. The deposit genesis belongs to the marine sedimentary manganese deposit which was formed in the black carbonaceous rock in the Datangpo Group of Nanhua System.
引文
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[3]周琦,杜远生.古天然气渗漏与锰矿成矿—以黔东地区南华纪“大塘坡式”锰矿为例[M].北京:地质出版社,2012.
[4]刘巽锋,王庆生,高兴基,等.贵州锰矿地质[M].贵州:贵州人民出版社,1989.
[5]周琦.黔东新元古代南华纪早期冷泉碳酸盐岩地球化学特征及对锰矿的控矿意义[D].中国地质大学,2008.
[6]周琦,杜远生,覃英,等.贵州省松桃县大塘坡地区南华系早期古天然气渗漏构造的发现及其地质意义[J].地球科学—中国地质大学学报,2007,32(增刊):33-40.
[7]周琦,杜远生,颜佳新,等.贵州省松桃县大塘坡地区南华系早期冷泉碳酸盐岩的地球化学特征[J].地球科学—中国地质大学学报,2007,32(6):845-852,
[8]湖南405地质队.湖南省花垣民乐锰矿地质特征和成矿规律报告[R].1984.
[9]王剑.华南新元古代裂谷盆地沉积演化——兼论与Rodinia解体的关系[M].北京:地质出版社,2000,1-146.
[10]王剑,刘宝珺,潘桂棠.华南新元古代裂谷盆地演化-Rodinia超大陆解体的前奏[J].矿物岩石,2001,21(3): 135-145.
[11]贵州省地矿局103队.贵州省松桃县杨立掌锰矿普查地质报告[R].1983.
[12]戴传固,李硕,张慧.浅论江南造山带西南段构造演化——以黔东及邻区为例[J].贵州地质,2005,22(2):98- 102.
[13]覃英,周琦,张遂.黔东北地区南华纪锰矿基本特征[J].贵州地质,2005,22(4):246-251.
[14]王砚耕.贵州主要地质事件与区域地质特征[J].贵州地质, 1996,13(2):99-104.
[15]王砚耕,王来兴,朱顺才,等.贵州东部大塘坡组地层沉积环境和成锰作用[M].贵阳:贵州人民出版社,1985.
[16]王砚耕.Rodinia超大陆演化与南华纪锰矿的成矿[R].2012.4
[17]周琦,杜远生,覃英,等.贵州省松桃县大塘坡南华纪早期古天然气渗漏构造的发现及其地质意义[J].地球科学——中国地质大学学报,2007,32(增刊):33-40.