硅质石灰岩
- 网络Siliceous limestone;cherty limestone
硅质石灰岩-
广西的石灰岩按性质可分为纯质石灰岩、夹硅质石灰岩、夹砂页岩或火成岩的石灰岩三种类型。
According to the nature , Guangxi Limestone is separated into three types : pure limestone , siliceous limestone , mixed sand shale or limestone of igneous rock .
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氧化锰矿石仅分布在地表附近，沿倾斜一般向下延伸30-70m即全部变成原始锰矿胚层（含锰、微含锰的硅质灰岩、含硅质灰岩、含钙质硅质岩及石灰岩等）。
Oxidized manganese ores are just distributed at surface nearby , and 30 ~ 70m declined along the slope turn into primary manganese beds which contain manganese , minor manganese-bearing siliceous limestone , siliceous limestone , carbonaceous silicalite and limestone .