【摘要】 黄海、东海和南海北部海底沉积物声学物理性质存在着差异,这与海区海底地质和沉积环境有关。取样所及的海底沉积物样品分析表明:黄海实验海区海底有6种沉积类型,东海实验海区海底有3种沉积类型,南海北部大陆架海区海底有6种沉积类型。三个海区的沉积物密度为1.48～2.03g·cm-3;沉积物含水量为10%～90%;沉积物孔隙度为65%～80%;沉积物纵波声速为1460～1916m·s-1;沉积物横波声速为115～611m·s-1。更多还原

【Abstract】 There is an evidence difference on the seabed sediment acoustic-physical characteristics in the Huanghai Sea, the Donghai Sea and the South China Sea. The difference relate to the sea area seabed geoloical and sedimentary environments. From analysis sediment samples show: There are 6 sedimentation types on the Huanghai Sea test area seabed, 3 sedimentation types on the Donghai Sea test area and 6 sedimentation types on northern the South China Sea. Three sea areas above, sediment density is between 1.48 g·cm -3to 2.03 g·cm -3. Sedimend water content is between 10% to 90%. Sediment porosity is between 65% to 80%. Sediment longitudinal wave velocity is between 1460 m·s -1 to 1916 m·s -1. Sediment shear wave velocity is between 115 m·s -1 to 611 m·s -1.更多还原