) 摘要: 根据震旦系底、晚泥盆统底、三叠系底三个构造不整合面将草湖凹陷古生代分为震旦纪-中泥盆世、晚泥盆世-二叠纪两个构造旋回
震旦纪-中泥盆世草湖凹陷经历了震旦-奥陶纪克拉通边缘坳陷阶段与志留纪-中泥盆世的强烈挤压隆升阶段
志留纪末-中泥盆世草湖凹陷褶皱隆升遭受剥蚀
石炭纪末-二叠纪草湖凹陷隆升遭受剥蚀
晚泥盆世-二叠纪草湖凹陷为远离西南陆棚的克拉通内坳陷陆表海海陆交互相沉积
中晚奥陶世持续挤压
早奥陶世为伸展-挤压过渡期
) Abstract: Accordding to three unconformity which are Sinian bottom unconformity, Devonian bottom unconformity , Triassic bottom unconformity, the Paleozoic of Caohu depression in Tarim basin can be divided in two tectonic cycles: Sinian-middle Devonian tectonic cycle and late Devonian-permian period tectonic cycle
duiring Sinian-middle Devonian, Caohu depression experienced Sinian-Ordovician cratonic border sag phase and Silurian-middle Devonian uplift erosion phase
The erosion quantities of the late Devonian bottom unconformity is 1000~2500 meters, accelerating from south to north as a whole
During late Devonian-permian period, Caohu depression belongs to intercratonic sag
The erosion quantities of the Triassic bottom unconformity is 100~1000 meters, accelerating from east to west
Keywords: Tarim basin; Caohu depression; tectonic evolvement 下载PDF阅读器 PDF全文下载: 初稿 ( 366 ) 作者简介: 通信联系人: 【收录情况】 中国科技论文在线: 张响响
塔里木盆地草湖凹陷古生代构造演化[EB/OL]