近20年来关于纵波速度与海底介质密度的关系已进行了许多研究.E.L.Hamilton指出:介质的弹性模量和刚度在很大程度上取决于孔隙率。或者说,孔隙率更能在声速度这一物理量中得到反映。由此推理,应当研究的是速度与介质孔隙率之间的关系。而实际上,大量的研究工作是在研究ν—ρ曲线,这可能是由于密度这个量便于测量,而且各海区不同类型底介质密度的调查资料发表的比较多。如果确知ν—ρ之间的关系,那么以地震法(或其它法)测得底介质中声速值,就可运用ν—ρ关系曲线得知底的介质密度,再配合其 Much research has been done on the relationship between P-wave velocity and density of seafloor media in the past two decades.E.L. Hamilton states that the elastic modulus and stiffness of a medium are strongly dependent on the porosity. Or, the porosity is more reflected in the physical quantity of sound velocity. From this reasoning, the relationship between velocity and the porosity of the medium should be studied. In fact, a large number of studies are devoted to studying the ν-ρ curve, which may be due to the fact that the amount of density is easy to measure and that there are more published survey data on the different types of bottom media density in different sea areas. If you know the relationship between ν-ρ, then the seismic method (or other method) to measure the sound velocity in the bottom media, you can use ν-ρ relation curve to know the bottom of the media density, coupled with its