【摘要】 贵州二叠系茅口组中的锰矿有两种类型:一类是茅口组顶部的含锰硅质岩、含锰灰岩和菱锰矿层;另一类是茅口组顶部的含锰岩系经风化淋浊而形成的位于古岩溶侵蚀面之上的遵义式锰矿,含锰岩系为含植物化石、海相化石的粘土岩、含锰粘土岩和菱锰矿层。然而,形成这些锰矿的原生含锰岩系仅分布于台沟相带内,因此,据茅口晚期古地理特征,可分出两个含锰矿带:毕节——仁怀和宣威——遵义含锰矿带;毕节——仁怀和宣威——遵义含锰矿带,其中宣威——遵义含锰矿带可进一步划分出黔北——黔中遵义式锰矿区和黔西原生沉积锰矿区,并提出后者是贵州锰矿勘探的主要目标,特别是在该区寻找含锰岩系古风化面,是寻找具工业意义锰矿的关键。更多还原

【Abstract】 Early Permian manganese deposits have two typies in Guizhou. One is manganese-bearing silicrock, manganese-bearing limestone and rhodochrosite layer of upper Maokou Formation, the other is manganese deposits on weathering Surface. It is formed by manganese-bearing horizon had be weathered and leached. A Manganese deposits of two typies manganese deposits. they was strictly restricted by Carbonate plat ditch facies. In this paper, two manganese-bearing belts are divided into in Guizhou. from sedimentary facies and paleogeography of late Maokou date. Manganese-bearing characteristic and maganese deposits distribution: 1. Xuanwei-ZunYi Manganese-bearing belt. This belf is subdivided into North-Central Guizhou manganese-bearing region, and West Guiahou manganese-bearing, region and workers suggest that west Guizhou manganese-bearing region is the main prospect region finding primary sedimentary manganese deposits and secondary weathering manganese deposits. 2. Bijian—Runhuai manganese-bearing belt.更多还原