early-middle permian

基本解释

Intracontinental extension tectonics process occurred in Middle Carboniferous-Early Permian which formed a lot of volcanic rocks.
中石炭世一早二叠世，本区进入造山后的陆内伸展作用阶段，并发育大量火山岩。
geology.nju.edu.cn
Based on an analysis of the conodont biofacies, it is inferred that there was probably a deep-sea basin facies sedimentary environment in the Wenguer area during the early Middle Permian.
通过牙形石生物相分析，推断温古尔地区中二叠世早期可能为盆地相较深水沉积环境。
During the Middle-early Late Permian the epicontinental sea contracted and evolved into a paralic inland depression in the study area and alluvial fan, river, delta and lake facies were formed.
中二叠世至晚二叠世早期陆表海萎缩，本区演变为近海内陆坳陷充填，形成冲积扇、河流、三角洲、湖泊沉积；

早-中二叠世
The early-middle Permian sedimentation of northwestern margin of Tarim Basin responsed timely to the collisinal orogeny of south Tianshan Orogenic Belt, which offers new evidence for the belt.
塔里木盆地西北缘早-中二叠世的沉积特征对南天山造山带的碰撞造山作用具有良好的沉积响应,为南天山造山带的研究提供了新的沉积学证据。