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The Upper Triassic ,Lower and Middle Jurassic loos... 找矿目的层是上三叠统和下、中侏罗统的疏松砂岩层。
He belongs to the lower middle class. 他来自中产阶级下层。
Non-marine bivalve Ferganoconcha is widely distributed in the Lower and Middle Jurassic of Northern China, Central Asia, Siberia and Ural regions. Ferganoconcha是广泛分布于我国北部、中亚、西伯利亚和乌拉尔地区下、中侏罗统的一类非海相双壳类。
The outcropped rocks are the Middle Jurassic Buqu Fm. 经对比 ,古油藏油气主要来源于下侏罗统烃源岩。
This tax bears down on the lower middle class. 税务压倒了中产阶级的下层。
The Dongsheng uranium deposit in the Ordos basin,Northern China occurs in fluvial sandstones in the lower member of the Zhiluo Formation,Middle Jurassic. 东胜铀矿床产于中侏罗统直罗组下段的辫状河道沉积砂体中,铀矿体受灰色砂岩与灰绿色砂岩的接触带控制。
The supercontinent of Pangea began to break apart in the Middle Jurassic. 一亿五千二百万年前：泛大陆裂解分离中侏罗纪时期，泛大陆全面裂解。
Among them, East Kunlun orogenic belt underwent perhaps postorogenic stretch during Lower and Middle Jurassic that might be the direct cause of the prototype of west-south Qadam basin during Mesozoic. 其中，早、中侏罗世东昆仑山可能经历了造山后伸展事件，这一事件可能是中生代柴西南原型盆地的直接成因；
In view of types,abundances and thermal evolution properties on organic matter,an evaluation of the hydrocarbon source rocks of the lower and middle Jurassic in Tula basin is made. 通过对吐拉盆地中-下侏罗统烃源岩有机碳含量、可溶有机质含量、热解参数、干酪根显微组分、干酪根元素、干酪根炭同位素、镜质体反射率等方面的分析,讨论了烃源岩的有机质丰度、类型和成熟度。
Party activists with lower middle class pedigrees are numerous. 党内积极分子中中产阶级下层出身的很多。
In view of types, abundances and thermal evolution properties on organic matter, an evaluation of the hydrocarbon source rocks of the lower arid middle Jurassic in Tula basin is made. 摘要通过对吐拉盆地中-下侏罗统烃源岩有机碳含量、可溶有机质含量、热解参数、干酪根显微组分、干酪根元素、干酪根炭同位素、镜质体反射率等方面的分析，讨论了烃源岩的有机质丰度、类型和成熟度。
Ginkgo sibirica (Heer) Seward was usually seen in the Lower and Middle Jurassic, It is rare in the Lower Cretaceous, the present record shows it can also survive in the Early Cretaceous. 总之，这些新发现和新记录对探讨银杏类和茨康类各属种的地质地理分布和演化具有重要意义。
The physical properties of Middle Jurassic reservoir are influenced by the lithologic characters of sandstone. 砂岩的岩性特征对储集层的物理性质具有明显的影响作用。
Pangea Begins to Rift Apart The supercontinent of Pangea began to break apart in the Middle Jurassic. 侏罗纪早期，中南亚开始形成。
Determination of three Middle Jurassic lake coastal zones by trace fossils in Ta ibei sag, Turpan basin, Northwest China. 根据遗迹化石确定台北凹陷中侏罗世湖岸带。
Abstract: Rock properties of Middle Jurassic reservoir in Taibei sag of Tuha basin have been studied by means of the casting thin sections and scanning electron microscope. 文摘:根据岩石铸体薄片和扫描电镜观察资料，分析了吐哈盆地台北凹陷中侏罗统储集层的岩性特征。
The Early to Middle Jurassic Shuixigou Group in Turpan-Hami basin is a series of coal measure strata with a thickness of 2000m. 摘要吐哈盆地中下侏罗统水西沟群是一套厚达2000m的河沼-湖沼相煤系地层，其中的煤岩及暗色泥岩是已发现油气藏的主要源岩。
The Middle Jurassic of Mohe Basin includes Xiufeng Formation, Ershierzhan Formation, Emuer River Formation and Kaikukang Formation. 漠河盆地中侏罗统包括绣峰组、二十二站组、额木尔河组和开库康组。
These successions are the eastward extension of the Sewa Formation in the Shuanghu area and their age is assigned to the Middle Jurassic early-mid Bajocian. 这套地层是双湖地区色哇组的东延部分,时代确定为中侏罗世早中巴柔期。
Rock properties of Middle Jurassic reservoir in Taibei sag of Tuha basin have been studied by means of the casting thin sections and scanning electron microscope. 根据岩石铸体薄片和扫描电镜观察资料，分析了吐哈盆地台北凹陷中侏罗统储集层的岩性特征。