TABLES 



1 Some General Characteristics of Sea Floor Sediments. . .page 11 



2 Some Typical Physical Properties of Sea Floor Sediments. . . 11 



3 Properties of Bottom Water in the Shallow Bering Sea 



(August 1960). . . 17 



4 Physical Properties of Sediments in the Shallow Bering Sea. . .21 



5 Acoustic Properties of Sediments in the Shallow Bering Sea. . .21 



6 Computed (in situ) Elastic Properties of Sediments. .. 22 



7 Physical Properties of 1961 Mohole Samples. . . 28 



8 Laboratory Measurements of Sediment Sound Velocity 



Corrected to in situ Values. . .29 



ILLUSTRATIONS 



1 Sediment distributions in parts of the shallow Bering Sea. . .page 16 



2 Sediment thicknesses at three locations in the shallow 



Bering Sea. . . 20 



3 Contoured chart of sea floor east of Guadalupe Island. . .27 



4 in situ sound velocity vs depth in sediment at Mohole Site. . .32 



