常見(jiàn)例句雙語(yǔ)例句Intracontinental extension tectonics process occurred in Middle Carboniferous-Early Permian which formed a lot of volcanic rocks.中石炭世一早二疊世，本區(qū)進(jìn)入造山后的陸內(nèi)伸展作用階段，并發(fā)育大量火山巖。geology.nju.edu.cnBased 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(guò)牙形石生物相分析，推斷溫古爾地區(qū)中二疊世早期可能為盆地相較深水沉積環(huán)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.中二疊世至晚二疊世早期陸表海萎縮，本區(qū)演變?yōu)榻?nèi)陸坳陷充填，形成沖積扇、河流、三角洲、湖泊沉積； 返回 early-middle permian