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U.S. Geological Survey Open-File Report 2015-1153

Sea-Floor Texture and Physiographic Zones of the Inner Continental Shelf From Salisbury to Nahant, Massachusetts, Including the Merrimack Embayment and Western Massachusetts Bay


Skip past contents information/ Title Page / List of Figures / Conversion Factors / Abbreviations / Abstract / Introduction / Methods / Results / Discussion / Summary / Acknowledgments / References Cited / Appendix — Geospatial Data / Citation Page /


Image of a generalized geologic map created by combining previously published stratigraphic interpretations within the study area and new interpretation for western Massachusetts Bay. The stratigraphic correlation of units in this map is shown in figure 6.

Figure 5. Generalized geologic map created by combining previously published stratigraphic interpretations within the study area and new interpretation for western Massachusetts Bay. Data are modified from (A) Barnhardt and others, 2006; (B) Oldale and Bick, 1987; (C) Oldale and Wommack, 1987; (D) Hein and others, 2013; and (E) Oldale and others, 1994. The stratigraphic correlation of units in this map is shown in figure 6. The drumlins identified by Oldale and others (1994) in western Massachusetts Bay are outlined in gray.

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