U.S. Geological Survey Open-File Report 2009-1001
Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts
Figure 28. Segment of Chirp high-resolution seismic-reflection profile and interpretation from research vessel Rafael cruise 08034 line 18 across the buried channel that extends seaward beneath Edgartown Harbor. Some estuarine and transitional deposits consist of gas-charged sediment. Location of profile is shown in figure 13.