摘要
皖南地区葛公镇组底砾岩在区域上具有广泛的分布和可比性 ,其底部界面属I型不整合面 ,该界面的出现也预示江南造山带中元古宙大陆边缘沟 -弧 -盆构造体制开始发生转折和最早一幕造山运动的出现 ,这套砾岩及其底界面性质的确定对江南造山带的构造演化具重要意义。
Basal conglomerate of Gegongzhen formation is extensively distributed and comparable in Southern area of Anhui province and its adjacent region, and its basal interface belongs to an I-type surface of unconformity. It implicates that trench-arc-basin system in Yangtze continental margin change and the first epoch orogenic movement occurred in middle Proterozoic. Basal conglomerate of Gegongzhen formation carefully researched is important signification on studying evolution of Jiangnan orogenic belt in late Proterozoic.
出处
《资源调查与环境》
2002年第2期107-112,共6页
Resources Survey & Environment
基金
国土资源大调查项目 :1:2 5万安庆市幅区域地质调查项目资助
关键词
性质
葛公镇砾岩
I型
不整合面
构造含义
皖南地区
构造演化
Basal conglomerate of Gegongzhen formation
I-type surface of unconformity
tectonic implication
Southern area of Anhui Province
