贵州省松桃县桃子坪隐伏超大型锰矿床地质特征及潜力分析

Geological Features and Potential Analysis of Taoziping Hidden Super-large Manganese Deposit in Songtao,Guizhou

贵州松桃桃子坪超大型锰矿床是华南南华纪武陵锰矿成矿带中松桃寨英-西溪堡(Ⅳ级)地堑盆地中发现的第二个超大型“大塘坡式”锰矿床,与亚洲最大的松桃普觉超大型锰矿紧邻,位于西溪堡(Ⅳ级)地堑盆地北西侧的渗漏喷溢中心相-过渡相-边缘相。矿体埋深9202000 m,为全隐伏锰矿床。含锰岩系厚度15.7091.00 m、锰矿体厚度1.0714.58 m。含锰岩系与锰矿体空间展布的长轴方向呈狭长带状沿北东约65°方向展布,与地表北东向的燕山期构造存在约40°夹角。目前该锰矿床北东和南西侧矿体均未圈边,还存在较大的锰矿找矿潜力。

The Taoziping Super-large manganese deposit in Songtao,Guizhou Province is the second Super-large“Datangpo”manganese bed found in the Songtao Zhaiying-Xixibao Fort(Grade IV)mantle basin of Nanhua period Wuling Manganese Mine-forming Belt of South China,and is adjacent to the Asia’s largest Pujue super-large manganese deposit.Located on the Northwest side of the central facies-transitional facies–marginal facies of seep eruption of the Xixibao(Grade IV)rift basin.The depth of the ore body is 9202000 m,which is a fully concealed manganese deposit.The thickness of the manganese rock system is 15.7091.00 m,and the thickness of the manganese ore body is 1.0714.58 m.The Long axis direction of space spread of both the Manganese-bearing rock series and the manganese ore body are distributed in a narrow strip along the direction of about NE65°,There is an angle of about 40°with the Yanshan period structure in the Northeast of the surface.At present,the ore body on the Northeast and Southwest side are not circled,there is still a large manganes ore prospecting potential.