The Middle Permian strata is well-developed in the Xiangxi area, Western Hubei.
鄂西香溪地区中二叠统发育良好。
The Middle Permian Maokou Formation is generally overlain by the Late Permian Emeishan basalts in eastern Yunnan and western Guizhou in the west of the Yangtze platform.
上扬子西部滇东、黔西茅口组之上多为峨眉山玄武岩所覆盖，长期以来人们一直认为两者不存在沉积间断和地层剥蚀。
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。
Mineral , palaeontology , middle devonian , permian to early jurassic , and cretaceous.
收藏矿物、古生物学、中泥盆纪、二叠纪到早期的侏罗纪和白恶纪。
Fengchen Group source rocks from the Permian oil source rocks are mainly distributed in the car 45 well, car 48 well, car 51 well of middle Hongche fault belt.
来源于二叠系风城组烃源岩的原油主要分布于红车断裂带中段车45、车48、车51井区。
Permian is broadly distributed in Nor th Xinjiang area, and source rocks are principally developed in upper member of Middle Per-main and upper member of Lower Permian.
北疆地区二叠系广泛分布，中二叠统上段和下二叠统上段是主要的烃源岩发育段。
Afterward, global large-scale massive volcanic activity in Permian Period generally brought about metamorphism whole middle Cambrian Period volcanic sediment rock in research area.
二叠纪全球性大规模火山活动，致使区内整个中寒武纪的火山沉积岩普遍发生变质。
Middle and Upper Permian reefs are widely distributed and well developed in south China.
二叠纪生物礁在我国南方分布广泛。
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。
Vertically, 3sets of source rocks including the Lower Cambrian, the Middle-o-Upper Ordovician-Lower Silurian and the Permian were developed in Chinese Paleozoic Marine basins.
研究认为中国古生代海相盆地在纵向上主要发育下寒武统、中上奥陶统—下志留统和二叠系3套烃源岩。
Vertically, 3sets of source rocks including the Lower Cambrian, the Middle-o-Upper Ordovician-Lower Silurian and the Permian were developed in Chinese Paleozoic Marine basins.
研究认为中国古生代海相盆地在纵向上主要发育下寒武统、中上奥陶统—下志留统和二叠系3套烃源岩。
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