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以右江地区泥盆—三叠纪深水盆地相地层为研究对象 ,①详细讨论了深水浊流沉积的层序划分及特征 ,结果表明浊流沉积的层序界面特征明显 ,主要表现为界面不规则 ,LST期砂岩底面具大量侵蚀充填构造及塑性流动变形构造等 ,层序的体系域构成与浊积扇演化关系密切 ,即从低水位体系域→海侵体系域→高水位体系域的演化浊积扇经历了进积→退积→加积→进积演化过程 ;②详细讨论了深水硅泥质沉积的层序划分及特征 ,即可根据硅质岩、泥质岩 (包括粉砂岩 )相对含量变化及成因特征来识别层序及体系域组成特征
Taking the Devonian-Triassic deep-water basin facies strata in Youjiang area as the research object, the sequence division and characteristics of deep-water turbidite sediments are discussed in detail. The results show that the sequence boundary features of turbidity flow sedimentation are obvious, Rules, LST sandstone bottom with a large number of erosion and filling structures and plastic flow deformation structure, the sequence of the system of domain formation and turbidite fan evolution are closely related, that is, from low water system tract → transgressive system tract → high water system evolution Turpan-accumulating fan experienced sedimentary → retreat → sediment → sedimentary evolution; ② discussed in detail the sequence division and characteristics of deep-water siliceous sediments, which can be based on the siliceous rocks, argillaceous rocks (including siltstone) Relative content changes and genetic characteristics to identify sequence and system tract composition characteristics