... ： 榆林气田 早二叠世 气藏描述 储集层 地质评价 模型 [gap=1991]Keywords : Yulin gas field, Early Permian Epoch, Gas reservoir description, Reservoir, Geologic evaluation, Model ...
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Taking into account reginoal geological and magmatie rock data, we suggest that the northern Tianshan was in an extensional setting by the Early Permian,which was possibly related to post-collisional evolution of the orogenic belt.
结合区域地质和岩浆岩资料,我们认为西天山早二叠世处于伸展的背景中,可能与造山带后碰撞阶段的演化有关。
参考来源 - 西天山达巴特A型花岗岩的形成时代与构造背景·2,447,543篇论文数据，部分数据来源于NoteExpress
其时代为晚石炭世至早二叠世。
The age of Kalagang formation of late Carboniferous was early Permian.
早二叠世是湖盆扩张初期，区内发育扇三角洲相、辫状河三角洲相和湖泊相。
Early Permian was initial stages of expanding of the lake basin. inside the region of interest, there developed fan delta, braided delta and lake facies.
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。
Intracontinental extension tectonics process occurred in Middle Carboniferous-Early Permian which formed a lot of volcanic rocks.
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