CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC (SI) 7 



I INTRODUCTION 9 



1. Background and Scope 9 



2. Field Procedures 10 



3. Office and Laboratory Procedures 20 



4. Seismic Interpretation 20 



5. Previous Studies 21 



II PHYSICAL SETTING 21 



1. Introduction 21 



2. Shore 25 



3. Offshore 25 



III BOTTOM DEPOSITS 26 



1. Introduction 26 



2. Shale 26 



3. Till 26 



4. Postglacial Sediment 33 



IV GEOLOGIC HISTORY 39 



1. Introduction 39 



2. Shale 39 



3. Till 39 



4. Postglacial Sediment 40 



V SUMMARY 40 



LITERATURE CITED 42 



APPENDIX 



A CORE SEDIMENT DESCRIPTIONS 45 



B GRANULOMETRIC DATA AND CUMULATIVE CURVE PLOTS 75 



C X-RAY DIFFRACTION ANALYSES 92 



D ATTERBERG LIMITS 94 



E MOLLUSK IDENTIFICATIONS FROM CORES 95 



F SEDIMENT THICKNESS DATA FROM SEISMIC RECORDS 97 



G CALCULATIONS OF SEISMIC VELOCITY IN WATER 107 



H CALCULATIONS OF SEISMIC VELOCITY IN POSTGLACIAL SEDIMENTS . . . 108 



I COl^ARISON OF POSTGLACIAL SEDIMENT THICKNESSES AS 

 MEASURED FROM THE CORES AND CALCULATED FROM THE 



SEISMIC RECORDS 109 



