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- 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。
- incised valley infilling of lowstand system tract 低位侵蚀沟谷充填
- The sequences may be divided into lowstand systems tract,transgressive systems tract,highstand systems tract and regressive systems tract. 将层序划分为低水位体系域、水进体系域、高水位体系域和水退体系域。
- Based on the study, the ternary texture of epicontinental sequence indicate that they also consist of lowstand systems tract, transgressive systems tract and highstand systems tract. 在此基础上,认为陆表海层序仍然具有“三元”结构,由低位体系域、海侵体系域和高位体系域组成。
- Keywords Yitong Basin;Chaluhe fault depression;Eocene;lowstand system tract;lithologic trap; 伊通盆地;岔路河断陷;始新统;低水位体系域;岩性圈闭;
- Better reservoirs are developed in Lowstand systems tracts while better source beds and cap rocks are developed in Transgressive and Highstand systems tracts. 低位体系域发育分选良好的储层,而水进体系域和高位体系域沉积则往往是良好的生油层和盖层。
- The salt was deposited not only at the initial stage of the lowstand systems tracts and the late stage of the highstand systems tracts, but also in the transgressive systems tracts. 在潜四段盐岩不仅分布于低位体系域的初期和高位体系域的末期,而且在水进体系域中也可见盐岩。
- Keywords lowstand systems tract transgressive systems tract highstand systems tract faulted basin coal accumulation Huangxian coalfield Shandong; 扩张体系域;萎缩体系域;断陷盆地;煤聚积规律;山东黄县煤田;
- lowstand system tract 低位体系域
- 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。
- 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。
- 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。
- 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。
- Depositional systems are placed in a sequence stratigraphic framework and are described as lowstand, transgressive, or highstand system tracts. 将沉积系统放在层序地层框架内并对低水位期、海侵和高水位期进行描述。
- schmooze and booze 喝酒闲聊
- 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;
- In terms of se-quence and depositional system tract,lowstand and highstand system tracts in a se-quence have various sand bodies,which are the favourable places for hydrocarbonaccumulation. 从层序、体系域的观点出发,层序内的低水位期和高水位期体系域发育有各类砂岩体,形成油气聚集的有利场所。