Depositional Systems Tract 沉积体系域
shelf-margin systems tract 陆棚缘体系 ; 陆架边缘体系域
highstand systems tract 高位体系域
Transgression systems tract 海进体系域
transgressive systems tract 海侵体系域
regressive systems tract 海退体系域
falling stage systems tract 下降体系域
The characteristics of combination and evolution of depositional systems, variety of strata, and distribution of sandbodies are analyzed in each systems tract.
以体系域为单位，分析了古近系SQ1～SQ7层序各体系域内部沉积体系组合及演化特征，以及地层厚度变化和砂体分布特征。
参考来源 - 沅江东次凹古近系桃源组—汉寿组沉积体系与层序地层研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Long base level, middle base level and short base level are divided in the systems tract of all the sequences.
对每个层序的体系域进行了长周期、中周期和短周期基准面旋回的划分。
Lowstand System Tracts of Early and Metaphse Jurassic Period was undergrown, of which Transgressive Systems Tract and Highstand Systems Tract made up.
早、中侏罗世低位体系域不发育，由海进体系域与高位体系域两部分组成。
It follows that the dynamic sequences in Zone a are made up of the flexural deformation systems tract (FST) and viscoelastic deformation systems tract (VST).
由此，提出了A区带动力层序由前陆挠曲变形体系域(FST)和前陆塑性变形体系域(VST)组成。
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