Shallow Geology, Sea-Floor Texture, and Physiographic Zones of Buzzards Bay, Massachusetts, Figure 1

Open-File Report 2014-1220

Shallow Geology, Sea-Floor Texture, and Physiographic Zones of Buzzards Bay, Massachusetts

/ Title Page / List of Figures / Conversion Factors / Abbreviations / Abstract / Introduction / Methods / Results / Discussion / Summary / Acknowledgments / References Cited / Appendix — Geospatial Data / Index /

Table 2. Confidence levels assigned to sediment texture polygons on the basis of the data used in the interpretation. The spatial distribution of polygons and associated confidence levels are shown in figure 8.

Confidence level	Bathymet	Acoustic backscatter	Seismic reflection	Sediment sample (laboratory analysis)	Sediemnt sample (qualitative)	Bottom photograph
One (high)	Swath	Lead-line and single-beam sonar	None	Yes	Possible	Possible
Two (high)	Swath	455-kHz Reson 8125 multibeam sonar	Data not used for this studyr	No	Possible	Possible
Three (low)	Lead line and single beam	455-kHz Reson 8125 and 240-kHz Reson 8101 multibeam sonars	None	Possible	Yes	No
Four (low)	Lead line and single beam	No	No	No	No	No

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