Number 3--SIDESCAN SONAR IMAGE, SURFICIAL GEOLOGIC INTERPRETATION, AND BATHYMETRY OF THE LONG ISLAND SOUND SEA FLOOR IN NIANTIC BAY AND VICINITY, CONNECTICUT

Survey Number 3--SIDESCAN SONAR IMAGE, SURFICIAL GEOLOGIC INTERPRETATION, AND BATHYMETRY OF THE LONG ISLAND SOUND SEA FLOOR IN NIANTIC BAY AND VICINITY, CONNECTICUT

Lawrence J. Poppe¹, Ralph S. Lewis², Jane F. Denny¹, Kenneth F. Parolski¹,
Mary L. DiGiacomo-Cohen², and Douglas S. Tolderlund³

^{1Coastal and Marine Geology Program, U.S. Geological Survey, Woods

Hole Field Center, Woods Hole, MA 02543

²Long Island Sound Resource Center, Connecticut Geological and Natural History

Survey, Department of Environmental Protection, 1084 Shennecossett Road, Avery Point,

Groton, CT 06340

³U.S. Coast Guard Academy, 15 Mohegan Avenue, New London, CT 06320

TABLE OF CONTENTS

INTRODUCTION

GEOLOGICAL SETTING

DATA COLLECTION AND PROCESSING

INTERPRETATION

Near-surface Seismic Character

Bathymetry

Sidescan Sonar Mosaic

Surficial Sediment Distribution

CONCLUSIONS

ACKNOWLEDGMENTS

REFERENCES CITED

FIGURE CAPTIONS

SIDESCAN-SONAR MOSAIC

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