Open-File Report 2014–1018
Title |
List of Figures |
Conversion Factors |
Abstract |
Introduction |
Setting |
Methods |
Bathymetry |
Sidescan Sonar |
Sediments |
Bottom Photography |
GIS Data Catalog |
Summary |
Acknowledgments |
References |
Contacts |
Index
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Figure 2. Map of end moraines (black-shaded polygons) and submerged ridges (dashed lines) in southern New York and New England (modified from Gustavson and Boothroyd, 1987) with the study area (red-outline polygon). The Ronkonkoma-Block Island-Nantucket terminal moraine represents the maximum advance of the Laurentide Ice Sheet about 20,000 to 28,000 years ago. The Harbor Hill-Roanoke Point-Charlestown-Buzzards Bay end moraine represents a retreated ice-sheet position from about 18,000 to 23,000 years ago (Uchupi and others, 2001; Balco, 2011). |