下侏罗统含煤系是铀矿化赋存的有利部位。
Uranium mineralizations are hosted in the Middle-Lower Jurassic coal-bearing series.
西北地区中、下侏罗统煤层广布，厚度较大；
The Middle and Lower Jurassic with thick coal seam is widely distributed in Northwest China.
钻井揭示，中—下侏罗统为中生界主要烃源岩。
According to the drilling results, the middle-lower Jurassic can be considered the main Mesozoic source rock.
灵武煤田的中侏罗统延安组含煤岩系为一湖泊三角洲沉积。
The middle Jurassic series Yanan Formation of in Lingwu coalfield is a lacustrine deltaic deposit.
中侏罗统是其盆地发育最全、分布最广泛的海相沉积层系。
Middle Juassic marine sedimentary strata are widespread in the basin.
兖州煤田的上侏罗统红层直接覆盖于二叠、石炭系煤系地层之上。
Upper Jurassic red bed cover directly on coal measure strata of Permian and Carboniferous system in Yanzhou coal field.
鱼卡煤田是青海省重要的煤炭资源基地，主要含煤地层为中侏罗统。
The Iqe coalfield is one of major coal resource bases in Qinghai Province.
主要形成了下白垩统半深湖相烃源岩，其次为中下侏罗统煤系烃源岩。
In these process of evolution, it deposited mainly hydrocarbon source rocks of lacustrine facies in the Early Cretaceous and secondary coal measures source rocks in Early-Middle Jurassic.
上侏罗统为断陷消亡期沉积，形成湿型扇—辫状河—曲流河沉积序列。
The fault subsidence lacustrine died out in late-Jurassic and damp type fan, braided stream and meander river sedimentary sequence was formed.
伊犁盆地南缘中、下侏罗统水西沟群产有数个可地浸的砂岩型铀矿床。
Several in-situ leachable sandstone-type uranium deposits are hosted in the Shuixigou Group, Middle-Lower Jurassic in the southern margin area of Yili basin.
化验资料表明，三选统与侏罗统中的油气在组分和物性上具有明显差异。
The test data indicate that there is a marked difference in composition and physical property between Triassic and Jurassic Series.
根据它的地质时代，划分为上三叠统含煤建造和中下侏罗统碎屑岩建造。
According to geological age, it may be divided into Upper Triassic coal-bearing formation and Lower-Middle Jurassic clastic rock formation.
其围岩有麻源组和中下石炭统的区域变质岩系及下侏罗统梨山组地层等。
Its wall rocks consist of the regional metamorphic rock, series of Mayuan formation and middle-lower Carboniferous series as well as lower Jurassic Lishan formation.
中侏罗统是煤成烃的主要储油层段，上侏罗统棕红色泥岩是区域性盖层。
The Middle Jurassic is the main reservoir interval of coal-formed hydrocarbon, and the brown-red mudstone of the Upper Jurassic becomes the regional cap rocks.
赋矿地层为上侏罗统雄黄厂段，主要由白云岩、灰岩、泥岩和粉砂岩组成。
The Xionghuangchang section of the Upper Jurassic series is the principal ore-host strata, composed mainly of dolomite, limestone, mudstone, and siltstone.
上侏罗统普遍被剥蚀。早一中侏罗世盆地经历了水体由浅到深的沉积演化。
The Upper Jurassic is generally exposed. In the area, the water depth evolved from shallow to deep from the Early Jurassic to the Middle Jurassic.
通过对该区含煤地层组合特征综合分析，认为其应属下侏罗统北票组含煤岩系。
Through comprehensive analysis of coal-bearing strata combinative characteristics in the area, figured out the strata belong to Lower Jurassic Beipiao Formation coal-bearing rock series.
主要的含油气层系为中上侏罗统浅海相砂岩和上白垩统河流、三角洲相碎屑岩。
Main hydrocarbon bearing layer systems are Middle-Upper Jurassic shallow Marine sandstone, Upper Crataceous river faciess and delta faciess clastic rock.
因此，将中下侏罗统确定为本区的主要找矿目标层，下白垩统为次要找矿目标层。
Therefore, the Lower-Middle Jurassic is selected as the main target horizon for sandstone-hosted uranium deposit, and the Lower Cretaceous as the minor one.
根据分子地球化学指标，下侏罗统和中侏罗统烃源岩都可划分为湖相和沼泽相两类。
In terms of molecular geochemistry indexes, the hydrocarbon source rocks both in lower Jurassic and middle Jurassic can be classified as lake facies and swamp facies.
其中，下侏罗统可划分为两个层序，沉积相均以扇三角洲与半深湖—深湖相为特征；
The Lower Jurassic consists of 2 sequences which include fan delta, semi deep lake and deep lake facies.
详细分析了王府凹陷上侏罗统和下白垩统砂岩储层的成岩作用及其对储层物性的影响。
The diagenesis of the sandstone reservoirs of the upper jurassic-lower Cretaceous series in Wangfu depression was analysed systematically.
以大量钻孔资料为基础，研究了伊宁盆地中侏罗统含煤地层的分布特征、含煤性、聚煤期。
On the basis of mass borehole data, the paper analyzed Middle Jurassic coal-bearing strata distributing features, coal-bearing property, coal-forming period in the Yining basin.
根据化石组合，龙家沟盆地的地层可划分为中侏罗统龙家沟组，上白垩统及上中新统保德组。
The strata of Mesozoic and Cenozoic in the basin can be divided into three parts, Middle Jurassic (Longjiagou Formation ), Lower Cretaceous and Upper Miocene (Baode Formation ).
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。
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.
黑龙江省一些中—新生代断陷盆地内，中、上侏罗统、下白垩统及第三系砾岩含古砂金较为普遍。
In some of the faulted basins of the Mesozoic to Cenozoic ages in Heilongjiang Province, the Middle Upper Jurassic, Lower Cretaceous and Teritary auriferous conglomerate are most widespread.
以准噶尔盆地上二叠统和中、下侏罗统的两套烃源岩为例，分析和探讨了生物标志物的组合特征。
This paper analysed and discussed the association characteristics of the biomarker in Upper and Mid-Lower Jurassic source rocks in Junggar basin.
运用分析化验、储层测试等多种资料，对羌塘盆地中上侏罗统碎屑岩储层的成岩演化特征进行了研究。
Characteristics of Diagenetic evolution of clastic reservoir in the upper and middle Jurassic in Qiangtang basin are studied using data from chemical examination and reservoir measurement.
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。
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。
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.
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