中国地质调查2014，Vol.1Issue(2)：1-6,6.
1∶25万常德市幅区域地质调查主要进展及成果
Main Progress and Achievements in Regional Geological Survey of 1∶250 000 Changde Sheet
摘要
Abstract
The regional geological survey project of 1∶250 000 Changde sheet have studied the Quaternary geological and environmental characteristics and evolution of the Dongting basin,and achieved progress as follows: ①We found out the Quaternary uplift-depression tectonic framework of the Dongting basin and peripheral area,and amply studied the Quaternary tectonic and sedimentary characteristics and environmental evolution of every secondary tectonic unit of the Dongting basin and its periphery area. ②We revealed the climatic evolution of the Dongting basin through pollen assemblages and geochemical characteristics of sediments,and discussed the evolutions of the sedimentary environment and tectonic subsidence of the southern Dongting basin through heavy minerals. ③We ascertained the tectonic movement characteristics of the basin that the Dongting basin was a rift basin during Early Pleistocene-middle of Middle Pleistocene,and entered into a depression phase since late Middle Pleistocene,and advanced geodynamic mechanism model of every tectonic period. ④We brought forward the concept of tectonic-sedimentary landforms,and defined tectonic-sedimentary landform types in the sheet.关键词
第四纪/洞庭盆地/沉积与地貌/构造活动/环境演化Key words
Quaternary period/Dongting basin/sedimentary and geomorphic characteristics/tectonic activities/environmental evolution分类
天文与地球科学引用本文复制引用
柏道远,马铁球,王先辉,陈渡平,彭云益,周柯军,李纲,黄文义..1∶25万常德市幅区域地质调查主要进展及成果[J].中国地质调查,2014,1(2):1-6,6.基金项目
中国地质调查 "湖南1∶25万常德市幅和岳阳市幅区域地质调查(编号:1212010610706)"项目资助. （编号:1212010610706）
