Sediments containing more than 10% clay particles by mass can exhibit cohesive properties. Cohesive sediments are commonly found in coastal areas worldwide, including the southern shore of the Caspian Sea and the northern/northwestern beaches of the Persian Gulf. These cohesive sediments can form a layer of soft to extremely soft mud, known as fluid mud, covering the seabed. The study examined the properties of natural mud samples collected from different depths and locations within three Iranian ports: Anzali Port (Caspian Sea), and Khorramshahr and Bushehr Ports (Persian Gulf). The laboratory analyses included determining the sediment grain-size distribution, density, carbonate content, organic matter content, and rheological properties at different water content ratios. Disregarding the impact of variations in organic matter and carbonate contents in the samples, water content ratio was the main factor affecting the rheological properties of sediments.

中文翻译：

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伊朗港口细小沉积物的流变特性和航深评估研究


按质量计，粘土颗粒含量超过 10% 的沉积物可以表现出内聚特性。粘性沉积物常见于世界各地的沿海地区，包括里海南岸和波斯湾的北部/西北海滩。这些粘性沉积物可以形成一层柔软到极软的泥浆，称为液态泥浆，覆盖海床。该研究检查了从伊朗三个港口的不同深度和位置收集的天然泥样本的特性：安扎利港（里海）以及霍拉姆沙赫尔港和布什尔港（波斯湾）。实验室分析包括测定不同含水率下的沉积物粒度分布、密度、碳酸盐含量、有机物含量和流变特性。不考虑样品中有机质和碳酸盐含量变化的影响，含水率是影响沉积物流变特性的主要因素。