The Haojiatai, Xiaochangliang and Donggutuo sections were selectedto study the sequence stratigraphic and the magnetostratigraphic features based on thefiled work in order to compare the sediment characteristics, build the age frame andillustrate the environment meaning of the typical sections.
本文选取其中的郝家台、小长梁和东谷坨三个典型剖面，在野外工作的基础上，进行层序地层学和磁性地层学的综合研究，对比它们的沉积特征，建立其年代地层格架，讨论盆地沉积环境的变迁。
参考来源 - 泥河湾盆地层序地层学与磁性地层学综合研究·2,447,543篇论文数据，部分数据来源于NoteExpress
If the sediment underlying a hydrate entraps natural gas, its acoustic velocity will become much lower, resulting in vivid characteristics of reflections.
若水合物下方的沉积物捕集了天然气，其声速会更低，由此产生的反射波具有鲜明的特点。
Sediment density is one of main physical characteristics of river sediment.
泥沙密度是河流泥沙的主要物理特性之一。
Study the space distribution characteristics of heavy metals in sediment.
详细研究了水系沉积物中重金属的空间分布特征。
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