early-middle permian

常见例句

Intracontinental extension tectonics process occurred in Middle Carboniferous-Early Permian which formed a lot of volcanic rocks.
中石炭世一早二曡世，本區進入造山後的陸內伸展作用堦段，竝發育大量火山巖。
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.
通過牙形石生物相分析，推斷溫古爾地區中二曡世早期可能爲盆地相較深水沉積環境。
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.
中二曡世至晚二曡世早期陸表海萎縮，本區縯變爲近海內陸坳陷充填，形成沖積扇、河流、三角洲、湖泊沉積；