CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC (SI) 6 



I INTRODUCTION 7 



II PROCEDURES 7 



1. Seismic Survey 7 



2. Core Boring 15 



3. Navigation Control 15 



III RESULTS 16 



1. Geologic Character of the Study Area 16 



2. Segment Description 19 



IV SUMMARY 29 



APPENDIX 



A SEISMIC REFLECTION PROFILES 31 



B CORE LOGS 39 



C GRANULOMETRIC DATA 56 



TABLES 



Grain-size scales (soil classification) 18 



FIGURES 



1 Lake Michigan st .ly area 8 



2 Survey coverage map 1 area 9 



3 Survey coverage map 2 area 10 



4 Survey coverage map 3 area .• 11 



5 Survey coverage map 4 area 12 



6 Survey coverage map 5 area 13 



7 Survey coverage map 6 area '. 14 



8 Bathymetry and sand potential, segment division 1, map 1 area. . 20 



9 Bathymetry and sand potential, segment divisions 2 to 6, map 



2 area 21 



10 Bathymetry and sand potential, segment divisions 7 to 11, map 



3 area 22 



4 



