贵州松桃高地特大型富锰矿床主要地质特征
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摘要
位于贵州铜仁松桃国家锰矿整装勘查区内的高地富锰矿床,(332)+(333)类碳酸锰富锰矿石资源量达7 166. 84万吨,锰平均品位25. 75%,矿体平均厚度4. 52 m,富锰矿体赋存于总资源量达1. 61亿吨的高地超大型锰矿床之中,由一个单一的富锰矿体构成,是我国新发现的首个特大型富锰矿床,富锰矿资源量相当于我国富锰矿资源量总和的2倍。成因类型属古天然气渗漏沉积型锰矿床,富锰矿产于古天然气渗漏沉积成矿系统中心相区。高地富锰矿床地处独特的"新月形"南华纪早期李家湾-高地-道坨(Ⅳ级)地堑盆地中心,菱锰矿体中均出现以块状构造夹被沥青充填的气泡状富菱锰矿石。地表燕山期北北东向的断裂构造十分发育,但主要为上陡下缓犁式正断层,未触及高地深部隐伏巨型锰矿体,以致富锰矿体保存亦十分完整,易于开发利用。
Gaodi manganese-rich deposit is located in the Songgan National Manganese fully-equipped exploration region in Tongren,Guizhou Province,the resources of( 332) +( 333) manganese carbonate manganese-rich ore reached 71. 668 million tons,the average grade is 25. 75%,and the average thickness of the ore body is 4. 52 m,the manganese-rich ore body occur in the high-scale super-large manganese deposit with a total resource of 161 million tons. It is composed of a single manganese-rich ore body. It is the first newly discovered large manganese-rich deposit in China. The amount is equivalent to twice the total amount of manganese-rich mineral resources in China. The genetic type belongs to the ancient natural gas seepage sedimentary manganese deposit,and the manganese-rich mineral developed in the central phase zone of the paleo-natural gas seepage sedimentary metallogenic system. The Gaodi manganese-rich deposit is located in the center of the unique"crescent-shaped"Lijiawan-Highland-Dowway( Grade IV) mantle basin in the early Nanhua period,and there are bubble-like fillings phosphorite-rich manganese deposit in the rhombohedral ore body. The north-north-east fault structure of the Yanshanian period is very developed,but it is mainly the upsteep and slow down-plow-type normal fault. It does not touch the deep buried giant manganese ore body in the highland,so that the manganese-rich ore body is also very intact and easy to develop and utilize.
Gaodi manganese-rich deposit is located in the Songgan National Manganese fully-equipped exploration region in Tongren,Guizhou Province,the resources of( 332) +( 333) manganese carbonate manganese-rich ore reached 71. 668 million tons,the average grade is 25. 75%,and the average thickness of the ore body is 4. 52 m,the manganese-rich ore body occur in the high-scale super-large manganese deposit with a total resource of 161 million tons. It is composed of a single manganese-rich ore body. It is the first newly discovered large manganese-rich deposit in China. The amount is equivalent to twice the total amount of manganese-rich mineral resources in China. The genetic type belongs to the ancient natural gas seepage sedimentary manganese deposit,and the manganese-rich mineral developed in the central phase zone of the paleo-natural gas seepage sedimentary metallogenic system. The Gaodi manganese-rich deposit is located in the center of the unique"crescent-shaped"Lijiawan-Highland-Dowway( Grade IV) mantle basin in the early Nanhua period,and there are bubble-like fillings phosphorite-rich manganese deposit in the rhombohedral ore body. The north-north-east fault structure of the Yanshanian period is very developed,but it is mainly the upsteep and slow down-plow-type normal fault. It does not touch the deep buried giant manganese ore body in the highland,so that the manganese-rich ore body is also very intact and easy to develop and utilize.
引文
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姚希财,田景江,张平壹,等.2017.贵州松桃高地超大型锰矿床矿体空间分布规律与找矿预测[J].贵州地质,34(1):9-16.
袁良军,周琦,张遂,等.2016.黔东李家湾-道坨南华纪早期成锰盆地原型结构特征及锰矿潜力预测[J].矿床地质增刊(1):37-38.
周琦,杜远生,袁良军,等.2016.黔湘渝毗邻区南华纪裂谷盆地结构及其对锰矿的控制作用[J].地球科学,41(2):177-188.
周琦,杜远生,袁良军,等.2017.古天然气渗漏沉积型锰矿床找矿模型-以黔湘渝毗邻区南华纪“大塘坡式”锰矿为例[J].地质学报,91(10):2285-2298.
周琦,杜远生,袁良军,等.2016.贵州铜仁松桃锰矿国家整装勘查区地质找矿主要进展及潜力预测[J].贵州地质,33(4):237-244.
周琦,杜远生,覃英.2013.古天然气渗漏沉积型锰矿床成矿系统与成矿模式-以黔湘渝毗邻区南华纪“大塘坡式”锰矿为例[J].矿床地质,457-466.
周琦,杜远生.2012.古天然气渗漏与锰矿成矿[M].北京:地质出版社.
田景江,姚希财,沈红钱,等.2018.贵州省松桃县高地锰矿详查报告[R].贵州省地质矿产勘查开局103地质大队.
肖克炎,邢树文,丁建华,等.2016.全国重要固体矿产重点成矿区带划分与资源潜力特征[J].地质学报,1269-1280.
谢小峰,杨坤光,钱山,等.2018.黔东松桃地区燕山期构造特征研究-以高地超大型锰矿床为例[J].地质论评,64(3):623-632.
姚希财,田景江,张平壹,等.2017.贵州松桃高地超大型锰矿床矿体空间分布规律与找矿预测[J].贵州地质,34(1):9-16.
袁良军,周琦,张遂,等.2016.黔东李家湾-道坨南华纪早期成锰盆地原型结构特征及锰矿潜力预测[J].矿床地质增刊(1):37-38.
周琦,杜远生,袁良军,等.2016.黔湘渝毗邻区南华纪裂谷盆地结构及其对锰矿的控制作用[J].地球科学,41(2):177-188.
周琦,杜远生,袁良军,等.2017.古天然气渗漏沉积型锰矿床找矿模型-以黔湘渝毗邻区南华纪“大塘坡式”锰矿为例[J].地质学报,91(10):2285-2298.
周琦,杜远生,袁良军,等.2016.贵州铜仁松桃锰矿国家整装勘查区地质找矿主要进展及潜力预测[J].贵州地质,33(4):237-244.
周琦,杜远生,覃英.2013.古天然气渗漏沉积型锰矿床成矿系统与成矿模式-以黔湘渝毗邻区南华纪“大塘坡式”锰矿为例[J].矿床地质,457-466.
周琦,杜远生.2012.古天然气渗漏与锰矿成矿[M].北京:地质出版社.