Number 4--SIDESCAN SONAR IMAGE, SURFICIAL GEOLOGICAL INTERPRETATION, AND BATHYMETRY OF THE LONG ISLAND SOUND SEA FLOOR OFF MILFORD, CONNECTICUT

Survey Number 4--SIDESCAN SONAR IMAGE, SURFICIAL GEOLOGICAL INTERPRETATION, AND BATHYMETRY OF THE LONG ISLAND SOUND SEA FLOOR OFF MILFORD, CONNECTICUT

David C. Twichell¹, Roman N. Zajac², Lawrence J. Poppe¹, Ralph S. Lewis³,
VeeAnn A. Cross¹, David R. Nichols¹, Mary L. DiGiacomo-Cohen³,

^{1US Geological Survey, Woods Hole, MA 02543

²Department of Biology, University of New Haven, New Haven, CT

³Long Island Sound Resource Center, Connecticut Geological and Natural History

Survey,

Department of Environmental Protection, 1084 Shennecossett Road, Avery Point, Groton, CT

06340

TABLE OF CONTENTS

INTRODUCTION

GEOLOGIC SETTING

DATA COLLECTION

DATA PROCESSING

GEOLOGIC INTERPRETATION

Bathymetry and Tracklines

Near-Surface Seismic Facies and Stratigraphy

Sidescan Sonar Mosaic

Surficial Sediment Distribution

CONCLUSIONS

ACKNOWLEDGMENTS

REFERENCES CITED

FIGURE CAPTIONS

SIDESCAN-SONAR MOSAIC

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