Publication Date:
2022-05-25
Description:
Author Posting. © The Author(s), 2006. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Geo-Marine Letters 26 (2006): 59-68, doi:10.1007/s00367-006-0016-4.
Description:
Multibeam bathymetric data and seismic-reflection profiles collected in eastern Long
Island and western Block Island Sounds reveal previously unrecognized glacial features and
modern bedforms. Glacial features include an ice-sculptured bedrock surface, a newly identified
recessional moraine, exposed glaciolacustrine sediments, and remnants of stagnant-ice-contact
deposits. Modern bedforms include fields of transverse sand waves, barchanoid waves, giant scour
depressions, and pockmarks. Bedform asymmetry and scour around obstructions indicate that net
sediment transport is westward across the northern par of the study area near Fishers Island and
eastward across the southern par near Great Gull Island.
Description:
This work was supported by the Coastal and Marine Geology Program of the U.S. Geological Survey, the Connecticut Department of Environmental Protection, and the Atlantic Hydrographic Branch of the
National Oceanic and Atmospheric Administration.
Repository Name:
Woods Hole Open Access Server
Type:
Preprint
Format:
application/pdf
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