The only previous quantitative studies of the sea floor of 

 Santa Monica Bay were made by MacDonald (1934), and Shepard and 

 MacDonald (1934, 1939). Approximately 200 bottom samples were 

 collected, from which 139 mechanical analyses and 27 heavy 

 mineral determinations were made. These writers also made 

 use of U. S. Coast and Geodetic Survey chart notations and, to 

 a minor extent, information supplied to them by fishermen, A 

 detailed study of the sediments, changes in bottom character, 

 interpretation of cores collected in the nearshore region, and 

 the source of the sediments of Santa Monica Bay were discussed. 

 The general results of this paper were summarized by Revelle and 

 Shepard (1939), and were used by Emery (1952) for interpreting 

 and comparing different types of sediments off the coast of 

 southern California. 



Cohee (1938) described sediments taken from submarine 

 canyons off California including a few samples collected from 

 the canyons in Santa Monica Bay. Dietz and Emery (1938a, 1939b); 

 Dietz, Emery, and Shepard (1942); Emery (1941, 1947, 1952, 1954b, 

 1955); Emery and Dietz (1950); Emery and Shepard (1941, 1945); 

 Emery and Terry (1956); Shepard (1934, 1937, 1939, 1940, 1941, 

 1948, 1951), have contributed much information to our knowledge 

 of continental shelf sediments, areas of nondeposition, phosphorite, 

 and other important data on sedimentation off the coast of southern 

 California. Zalesny (1956) has studied the Foraminifera of 

 Santa Monica Bay. Marlette (1954) in addition to a study of the 

 nearshore sediments in the vicinity of Redondo Beach, collected 

 several cores along the axis of Redondo submarine canyon. 



