中国锰矿形成时代与分布特征  

Metallogenic Epochs and Distribution of China's Mn-deposits

作　　者：宋雄[1] 

机构地区：[1]冶金部地质勘查总局资料馆

出　　处：《地质与勘探》1989年第5期3-10,共8页Geology and Exploration

摘　　要：中国锰矿床主要是由沉积作用,或是与沉积作用有关的地质作用生成的.中国锰矿在各个地质时代,如元古代、古生代、中生代都有.文中与世界锰矿产出时代作了对比.中国锰矿先是在元古代中国准地台上,继而至华南褶皱系南缘生成,沉积中心由北而南、由东向西转移,形成了中国锰矿的现代分布格局.笔者推断:中国西南高原中-新生代地层分布区,可能是锰矿的重大发现区.Manganese deposits of China were predominately formed by sedimentation and other geologicalprocesses related to sedimentation during various metallogenic epochs, including the Proterozoic, Paleozoic, and Mesozoic. So far as their mineralization periods are concerned, they are quite different fromother Mn-deposits in the world. Manganese ores of our country were accumulated on China peraplatform at an epoch as early as the Proterozoic, then at the southern margin of the South China foldsystem, with the centre of sedimentation gradally shifted from the north to the south as well as fromthe east to the west, thus constructing the present framework of the distribution of China's manganese ores. Tire author believes that the plateau districts of the southwestern part of ou rcountry, wherestrata of more younger ages (the Mesozoic or Cenozoic) are widespread, will be the important areasin search of manganese ores in the coming years.

关 键 词：锰矿 成矿时代 成矿期 中国 

分 类 号：P618.320.5[天文地球—矿床学]