TABLE OF CONTENTS 



1 . INTRODUCTION 



2.0 METHODS ........... 2 



2 . 1 Navigation 2 



2.2 Bathymetry ....... 2 



2.3 Side Scan Sonar and Sub-bottom Surveys ...... 3 



2.4 REMOTS* Sediment Profile Photography ....... 4 



2.5 Sediment Sampling and Analysis 4 



2.6 Benthic Community Sampling and Analysis ...... 5 



3.0 RESULTS . 6 



3.1 Brenton Reef Historic Disposal Site 6 



3.1.1 Bathymetry ................ 6 



3.1.2 Seismic Stratigraphy 6 



3.1.3 Surface Textural Characteristics ..... 7 



3.1.4 Benthic Community Structure . . 8 



3.2 Brenton-A, Brenton-B, and Prudence Areas ..... 12 



3.2.1 Bathymetry .......... . 12 



3.2.2 Seismic Stratigraphy . 12 



3.2.3 Surface Textural Characteristics ..... 13 



4.0 DISCUSSION ............ 15 



4.1 Topography of the Brenton Reef Historic Disposal 

 Site ............. 15 



4.2 Bottom Topography and Sediment Characteristics . . 15 



4.2.1 Geological History 15 



4.2.2 Side Scan Sonar Observations ....... 17 



4.3 Benthic Community Structure ............ 18 



5.0 SUMMARY 22 



6.0 LITERATURE CITED ....... ........ 24 



INDEX 



TABLES 



FIGURES 



