... upper part of stage ==> 舞台上空 upper Permian series ==> 上二叠统 upper photic zone ==> 上透光层 ...
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Lithofacies analysis indicates that mid-upper Permian series in the study area comprises mainly bioclast limestone,micrite,calcrenite,calcirudite,silicolite,etc.
岩相分析表明,研究区中-上二叠统主要由生物碎屑颗粒灰岩、泥晶灰岩、砂屑灰岩、砾屑灰岩、硅质岩等组成。
参考来源 - 湖北秭归兴滩二叠系沉积及演化特征·2,447,543篇论文数据，部分数据来源于NoteExpress
We consider that the oil source bed in the east of Junggar Basin is mainly of the upper Permian series.
本文认为盆地东部地区的油源层主要是上二叠统。
The Shuiyindong gold deposit, which occurs in the Longtan Formation of the Upper Permian series, is a super-large, high-grade gold ore deposit.
黔西南水银洞金矿为产于上二叠统龙潭组中的超大型、高品位金矿床，矿床由多个金矿体组成。
The Upper Permian System Longtan coal measure in the Changguang coal deposit is a complete sedimentary cycle, consisting of a regressive and a transgressive series.
长广煤田上二迭统龙潭含煤岩系是由海退系列和海进系列组成的一个完整沉积旋回。
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