摘要
滇东南地区是云南省重要的铝土矿成矿区,该区堆积型铝土矿是由上二叠统吴家坪组(P3w)或龙潭组(P3l)沉积型铝土矿遭受风化剥蚀,经淋滤、搬运至下二叠统或石炭系碳酸盐岩之岩溶低洼地带富集成矿.通过对比,成矿时代厘定为新近纪中新世至第四纪中更新世.
SE Yunnan is an important bauxite metallogenesis area in Yunnan.In this area,the accumula-tion bauxite deposit is Upper P Wujiaping Formatoion(P3w)or Longtan Formation(P3l)sedimentation bauxite which is weathered,disintegrated,leached and migrated to karst depression area of Lower P or C carbonatite,then concentration,deposit and metallogenesis.According to the comparison,we determine the metallogenesis Age:Neogene Miocene to Quarternary Middle Pleistocene.
作者
喻涌麒
李卿
周南
YU Yong-qi;LI Qing;ZHOU Nan(Team 306,Yunnan Bureau of Nonferrous Geology,Kunming 650217)
出处
《云南地质》
2020年第3期417-421,共5页
Yunnan Geology
关键词
堆积型铝土矿
矿床特征
成矿机制
滇东南
Accumulation Bauxite Deposit
Orebody Feature
Metallogenesis Mechanism
SE Yunnan
