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- So-called 4th sequence is a system tract practically with no cyclicity. 四级层序就是体系域，不具有旋回性。
- Continuous existence of accommodation space led to well-developed lacustrine transgressive system tracts(LTST). 可容空间持续存在，导致湖侵体系域十分发育。
- Isotope of carbon and oxygen in the ingression of water system tracts in Qianjiang Formation of Qianjiang depressio... 硼含量亦有类似的变化规律 ,低位域和高位域末期的硼含量一般较高 ,而在水进体系域中则变小。
- The transgressive system tracts of Fengfeng and late Majiagou stages are two major oil-generation stages. 另一方面，奥陶系层序格架又构成了一个多层次、多类型油气组合单元。
- Participants learn how to recognize and correlate sequence boundaries, flooding surfaces, condensed sections, and system tracts. 学习人员学习如何识别和对比层序边界、水淹表面、致密剖面和体系区块。
- The Upper Triassic in the western Sichuan foreland basin can be divided into 4 third order sequences and 12 system tracts. 摘要应用层序地层学方法将川西前陆盆地上三叠统划分为4个三级层序和12个体系域。
- This formation consists of 3 system tracts, namely the lowstand system tract, transgressive system tract, and highstand system tract. 山旺组地层可以划分为一个三级层序，这个层序内部又可以划分出低位体系域、湖侵体系域和高位体系域等三个体系域。
- The results show that maceral composition, organic geochemistry, hydrocarbon potential and organic facies of C-P hydrocarbon source rock vary in different system tracts. 结果表明：C-P不同体系域的有机显微组分性质、有机地球化学特征、生烃潜力和有机相存在明显差异。
- Therefore, hydrocarbon source rocks formed in the early highstand system tract have the best hydrocarbon potential. 因此早期高位体系域中的烃源岩有较好的生烃潜力。
- The four-divided system tracts in a complete terrigeous sequence were sedimentational response to accommodation change resulting from a sedimentary baselevel cyclicity. 陆相层序四分体系域是一个沉积基准面旋回所引起的可容空间旋回性变化的沉积响应。
- It can be used to determine boundaries of depositional sequence and system tracts, current direction, hydraulic energy and manifold depositional environ ments. 用它可以确定层序和体系域边界，判断水流方向和水动力大小，识别多种沉积环境。
- On the basis of analysis of the data of seismic, well-log, 7 sequence, 19 system tracts were identified lower Tertiary in Hongliu area of Jiyang depression. 摘要在对地震、测井和钻井等资料详细分析的基础上，将济阳坳陷红柳地区在下第三系划分出了7个三级层序，19个体系域。
- Highstand System Tract mainly develops depositional system of offshore-meare, fluvial facies and prograded delta. 高位体系域主要发育滨浅湖相、河流相及进积型三角洲沉积体系。
- In this paper, coal-bearing strata in the Qinshui Basin are divided into two sequences which consist of transgressive system tracts and highstand system tracts. 进行层序界面的识别、沉积相的分析和准层序的研究对比，将沁水盆地煤系划分为两个层序，每个层序又分为海侵体系域和高位体系域（缺低位体系域）。
- Transgressive system tract were superimposed by retrogradation, and high system tract were superimposed by progradation. 对体系域内部特征的描述表明，海侵体系域为由一系列退积叠置构成，高位体系域则由进积叠置构成。
- The oil shale of the third mumber developed in highstand system tract, and its genetic type is of humosapropelic of shallow lacustrine facies. 油三层形成于高水位体系域发育时期，成因类型为浅湖相腐殖-腐泥型油页岩。
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- A model for the Lower Tertiary framework and sequence system tract of Jiyang subbasin was established with the high_resolution sequence stratigraphy. 建立了济阳坳陷下第三系高精度层序地层格架和层序体系域的构成模式。
- The most part of Tahei Uplift had subsided under water at the stages of later Shushanhe and Baxigai, and was overlapped by the highstand system tract at Bashenjiqike stage. 舒善河后期与巴西盖期，塔北隆起大部分已沉降至水下，至巴什基奇克期被同期高水位体系域沉积地层所超覆。
- The four-order sequence of epicontinental sea basin is composed of two units, that is, the Transgressive System Tract (TST) and Highstand System Tract (HST). 陆表海盆地三级层序为海侵体系域高位体系域二个单元组成；
