贵州松桃-印江地区“含锰岩系”沉积微相特征与远景预测

摘要

本文通过对松桃-印江地区大塘坡组一段“含锰岩系”的岩石组合特征分析，阐述了含锰岩系“三个微相”的划分方案，认为杨立掌、大塘坡、大屋、黑水溪等锰矿聚集区属盆地中心微相，其周围附近属盆地外围微相，距盆地较远地带属水下隆起带微相。依据盆地中心与水下隆起带的位置关系、盆地中心之间的间距、控矿构造等分析，认为乌罗司-望秀-石门坎一带极有可能存在一个较大的聚锰盆地。%Bythefeatureanalysesofmanganese-bearingrockcomponentsofDatangpoformationin Songtao-Yinjiang area,the division plan of 3 manganese-bearing rock micro-facies is introduced,it’thought Yanglizhang,Datangpo,Dawu and Heishuixi manganese accumulation areas are central basin micro-facies, the others are outside basin micro-facies,the area far away from basin is uplift under river micro-facies.Ac-cording to the relation between basin center and underwater uplift zone,the distance of basin centers and ore-controlling factors,it’s thought there may be a big manganese accumulation basin in Wuluosi-Wangxiu-Shi-menkan area.