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High-Resolution Geologic Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts

Title Page / Table of Contents / List of Figures / Introduction / Maps / Data Collection/Processing / Interpretation / Acknowledgments / Appendix 1 / Appendix 2 / Appendix 3 / Appendix 4


Fig. 4.5. Maps of seafloor topography and backscatter intensity  in Salem Sound. Fig. 4.5. Maps of seafloor topography and backscatter intensity  in Salem Sound. Fig. 4.5. Maps of seafloor topography and backscatter intensity  in Salem Sound.

Figure 4.5. Maps of seafloor topography (upper left) and backscatter intensity (upper right) in Salem Sound. Both maps are overlain on NOAA-NOS nautical chart #13275. Dashed lines show boundaries of physiographic zones, which are based on seafloor topography and dominant substrate properties. See figure 4.4 for location of maps. Bottom photographs A-C (middle) and seismic-reflection profile (bottom) are indicated by yellow circles and line, respectively. The distance across the bottom of the photographs is approximately 50 cm.


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