在各勘探目的层层序地层内，主要发育于高水位体系域中中粗粒岩屑长石砂岩发育带，同时也主要位于主要层序界面上下。

Among all sequence strata of exploration target, it mainly developed medium-coarse clastic arkose in high water system, which overlies and underlies the primary sequence interface as well.

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沉积水动力学分析表明可以从槽状交错层理特征中的粒序、低角度斜层和逆向层理提取可靠的古流信息。

The study of the hydrodynamics indicates that the reliable data of the paleocurrent can be collected through features of the size grading, low angle inclined bedding and the backward bedding.

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