Chapter 2 Number 1--SIDESCAN SONAR IMAGE, SURFICIAL GEOLOGIC INTERPRETATION, AND BATHYMETRY OF THE LONG ISLAND SOUND SEA FLOOR OFF HAMMONASSET BEACH STATE PARK, CONNECTICUT

Survey Number 1--SIDESCAN SONAR IMAGE, SURFICIAL GEOLOGIC INTERPRETATION, AND BATHYMETRY OF THE LONG ISLAND SOUND SEA FLOOR OFF HAMMONASSET BEACH STATE PARK, CONNECTICUT

Lawrence J. Poppe¹, Ralph S. Lewis², Roman N. Zajac³,
David C. Twichell¹, Eric A. Schmuck¹, Kenneth F. Parolski¹, and Mary L. DiGiacomo-Cohen²

^{1U.S. Geological Survey, 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

³University of New Haven, 300 Orange Avenue, West Haven, CT 06516

TABLE OF CONTENTS

INTRODUCTION

GEOLOGICAL SETTING

DATA COLLECTION AND PROCESSING

INTERPRETATION

Near-Surface Echo Character

Bathymetry

Sidescan Sonar Mosaic

Surficial Sediment Distribution

CONCLUSIONS

ACKNOWLEDGMENTS

REFERENCES

FIGURE CAPTIONS

SIDESCAN-SONAR MOSAIC

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