黄河口粉质土矿物成分特征及对水动力条件响应的研究

黄河三角洲沿岸水域波浪对潮滩有强烈的扰动作用，滩面沉积物的后期改造直接由水动力条件决定。潮坪上构筑的道路与波浪传播方向近垂直，使得两侧水动力条件迥异。在道路两侧各选典型区域，取样进行X射线衍射物相分析，概略分析潮坪沉积物的矿物成分及含量对水动力条件响应而变化的一些特征，发现了强水动力环境使碎屑矿物含量增大的一些规律，此规律对于表层沉积物更为明显。

Research on the Mineral Characteristics of Sediment and the Responding to the Hydrodynamic Conditions on the Tidal Flat,Northern Yellow River Delta

The tidal flat is intensely disturbed by waves along the coast of the Yellow River delta, which directly effects the subsequent transformation of the superficial sediment. The paved road across the tidal flat is perpendicular to the propagating direction of waves, which makes sharp difference in the hydrodynamic condition on both sides of the road. We selected two representative research regions on both sides and took some sediment samples respectively. The X-ray diffraction phase analysis shows the characteristics of the mineral components and their content responding to the hydrodynamic conditions. In general, the content of detrital minerals increases in intense hydrodynamic condition. It is manifested more prominently in the superficial layer of the sediment.