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U.S. Geological Survey Open-File Report 2012-1002

High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts


List of Figures

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Figure 1. Map showing the location of the survey area (outlined in red) and local physiographic features in Buzzards Bay, Massachusetts. Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.

Figure 2. Photographs of motor vessels (MV) used for mapping surveys in this project: A, MV Megan T. Miller; B, MV Scarlett Isabella; and C, National Oceanic and Atmospheric Administration Ship RUDE.

Figure 3. Map showing tracklines along which bathymetric depth data were collected in the Buzzards Bay, Massachusetts, survey area. Tracklines are color-coded by U.S. Geological Survey (USGS) field activity serial number or National Oceanic and Atmospheric Administration (NOAA) registry number. Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.

Figure 4. Map showing depth-colored shaded-relief bathymetry of the seafloor in Buzzards Bay, Massachusetts. Coloring and bathymetric contours represent depth in meters (m), relative to the Mean Lower Low Water (MLLW) datum. Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.

Figure 5. Map showing tracklines along which acoustic-backscatter data were collected in the Buzzards Bay, Massachusetts, survey area. Tracklines are color-coded by U.S. Geological Survey (USGS) field activity serial number. Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.

Figure 6. Map showing acoustic-backscatter intensity of the seafloor in the Buzzards Bay, Massachusetts, survey area. Backscatter intensity is an acoustic measure of the hardness and roughness of the seafloor. In general, higher values (light tones) represent rock, boulders, cobbles, gravel, and coarse sand. Lower values (dark tones) generally represent fine sand and muddy sediment. Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.

Figure 7. Map showing tracklines along which seismic-reflection profiles were collected in the Buzzards Bay, Massachusetts, survey area. Tracklines are color-coded by U.S. Geological Survey (USGS) field activity number. Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.
Figure 8. Map showing the location of additional geophyscial data in Massachusetts waters adjacent to the Buzzards Bay survey area collected by the U.S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA). Is., Island; UTM, Universal Transverse Mercator; WGS 84, World Geodetic System of 1984.

 

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