CONTENTS 



Page 



I INTRODUCTION 7 



1. Background 7 



2. Field and Laboratory Procedures 8 



3. Scope 10 



4. Hydrography 16 



5. Stratigraphy and Geologic History 16 



6. Coastal Morphology and Development 19 



7. Regional Marine Geology 21 



n GEOMORPHOLOGY AND SHALLOW SUBBOTTOM STRUCTURE OF 



THE CONTINENTAL SHELF 21 



1. Continental Shelf Geomorphology 21 



2. Shallow Subbottom Structure and Bedding 25 



m SURFACE AND SUBBOTTOM SEDIMENT CHARACTERISTICS AND 



DISTRIBUTION 41 



1. Inner Shelf Sediment Characteristics 41 



2. Sediment Distribution on the Inner Shelf 56 



IV DISCUSSION 67 



1. Shallow Subbottom Stratigraphy and Structure 67 



2. Sources of Inner Shelf Sediments 72 



3. Origin of Area Beach Sediments 77 



4. Inner Shelf History 79 



V SAND RESOURCES ON THE NORTH FLORIDA INNER SHELF . . 81 



1. Sand Requirements for the North Florida Coast 81 



2. Comparison of Beach and Offshore Sands 83 



3. Potential Offshore Sand Resources 88 



VI SUMMARY 97 



LITERATURE CITED 100 



APPENDIX 



A SELECTED GEOPHYSICAL PROFILES 109 



B SIZE DATA OF OFFSHORE CORE SAMPLES DESIGNATED AS 



SUITABLE MATERIAL FOR BEACH RESTORATION 116 



C FAUNAE LISTS 118 



