华南地质与矿产2017，Vol.33Issue(4)：321-329,9.DOI:10.3969/j.issn.1007-3701.2017.04.001
湖南桃川-广西福利地区1:5万区域地质矿产调查主要成果与进展
New Progresses in 1:50000 Regional Geological Mineral Survey in Taochuan Area, Hunan-Fuli Area,Guangxi
摘要
Abstract
On the basis of modern theory of stratigraphy and sedimentology,and working on the lithostratigraphy, biostratigraphy, chronostratigraphy and sequence stratigraphy, multiple stratigraphic division and correlation sequence has been improved during 1:50000 regional geological mineral survey in Taochuan area,Hunan-Fuli area,Guangxi.The units of formation of Yijiawan,Huanggongtang and Changlongjie have been mapped firstly in this area,and strengthen the express of informal mapping units.According to the detrital zircon U-Pb ages of formation of Tianmashan sericite tuffaceous fine sandstone,Qiaotingzi illite-sericite tuffaceous fine sandstone,member 1 of Bianxi tuffaceous fine sandstone and member 2 of Bianxi tuffaceous fine siltstone formation,we found that the studed area has higher affinity with Cathaysian block in Cambrian-Ordovician period.Restudy and divide the intrusive rocks by"Lithology + Geological Age" mapping unit, use zircon U-Pb dating analysis the relationship among magmatic activity,structure and mineralization.On the study of spatial distribution and features of structure in investigation area, we figure out the geologic feature, formation mechanism basin-controlling and ore-controlling characteristics of Yulongshanjiao-Daweishan detachment structure and Gaotang-Xiaotian structure.By stream sediments analysis and mineralization abnormalities check,identified the mineralization geological background and metallogenic condi-tion of investigation area,establish the genetic model,outline the potential prospective areas,sum up the metallogenic regulation,and make recommendations for further work.关键词
地层划分对比/锆石U-Pb测年数据/控盆构造/成矿预测/区域地质矿产调查/湖南桃川-广西福利地区Key words
stratigraphic division and correlation/zircon U-Pb dating/basin-controlling tectonic/metallogenic prog-nosis/regional geological mineral survey/Taochuan area/Hunan-Fuli area/Guangxi分类
地质学引用本文复制引用
邵小阳,李坤,闫亚鹏,李文辉,罗锡宜,刘建雄,黄继春..湖南桃川-广西福利地区1:5万区域地质矿产调查主要成果与进展[J].华南地质与矿产,2017,33(4):321-329,9.基金项目
中国地质调查局"广西1:5万桃川镇(G49E018013)、麦岭(G49E018014)、源口(G49E019013)、福利幅(G49E019014)区域地质矿产调查(编号:1212011220518)"项目资助. （G49E018013）
