TABLE OF CONTENTS 



page 



INTRODUCTION 1 



PREVIOUS WORK—— 1 



Offshore Area — 2 



Coastal Region 5 



Land Geology 7 



GEOLOGIC AND GEOGRAPHIC SETTING OF 



SANT^ MONICA BAY 8 



Introduction 8 



Land Forms • 9 



Santa Monica Mountains 11 



Santa Monica Plain 14 



Ocean Park Plain ■ 14 



Ballona Gap 15 



El Segundo Sand Hills 18 



Palos Verdes Hills 20 



SUBMARINE TOPOGRAPHY OF SANTA MONICA BAY 23 



Submarine Physiographic Provinces 24 



Shelf 24 



Redondo and Santa Monica Canyons 31 



Basin Slope 34 



Santa Monica Basin ■ 34 



APPARATUS AND METHODS 35 



Laboratory Studies 38 



Mechanical Analysis 38 



Calcium Carbonate 40 



Organic Carbon ■ 40 



Mineralogy ■ 41 



Sphericity and Roundness--^ 41 



Rock and Gravel 42 



BOTTOM MATERIALS— 42 



Unconsolidated Sediments ■-■ ■ 42 



Areal Distribution of Sediment Types 44 



Sand, Silt, and Clay in the Sediments 47 



Coarse Fraction 53 



Fine Quartz-Feldspar Sand ■-- 55 



Description ■ • ■ 55 



Occurrence 57 



Rock-fragment Sand 57 



Description 57 



Occurrence 58 



Red Sand 59 



Description 59 



Occurrence 59 



Shell Sand 60 



Description 60 



Occurrence 60 



Phosphorite-Glauconite-Shell Sand 60 



Description 60 



Occurrence 61 



Glauconite Sand • 61 



Description 61 



Occurrence 62 



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