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

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Title Page

Table of Contents
List of Figures
Data Collection
and Processing
Geologic Interpretation


Geographic Information
Sediment Texture
Bottom Photographs
Seismic Profiles

References Cited

Ashley, G.M., 1990, A unifying classification scheme for environmental discriminators; large-scale flow-transverse subaqueous bedforms: International Sedimentological Congress, v.13, p. 11-12.

Aubrey, D.G., Twichell, D.C. and Pfirman, S.L., 1982, Holocene sedimentation in the shallow nearshore zone off Nauset Inlet, Cape Cod, Massachusetts: Marine Geology, v. 47, p. 243-259.

Barnhardt, W.A. and Kelley, J.T., 1995, The accumulation of carbonate sediments on the inner shelf of Maine; A modern consequence of glaciation and sea-level change: Journal of Sedimentary Research, v. 65, p. 195-208.

Barnhardt, W.A., Kelley, J.T., Dickson, S.M., Belknap, D.F. and Kelley, A.R., 1996, Surficial geology of the Maine inner continental shelf: Maine Geological Survey Map Series (7 maps), Augusta, Maine, scale 1:100,000.

Belknap, D.F. and Shipp, R.C., 1991, Seismic stratigraphy of glacial marine units, Maine inner shelf, in J. B. Anderson and G. M. Ashley, eds., Glacial marine sedimentation; Paleoclimatic significance: Geological Society of America Special Paper 261, Boulder, Colo., p. 137-157.

Bloom, A.L., 1963, Late Pleistocene fluctuations of sealevel and postglacial crustal rebound in coastal Maine: American Journal of Science, v. 261, p. 862-879.

Butman, Bradford, Valentine, P.C., Danforth, W.W., Hayes, Laura, Serrett, L.A., and Middleton, T.J., 2003, Shaded relief, backscatter intensity and sea floor topography of Massachusetts Bay and the Stellwagen Bank region, offshore of Boston, Massachusetts: U.S. Geological Survey Geologic Investigation Map I-2734, scale 1:125,000, 2 sheets.

Cacchione, D.A., Drake, D.A., Grant, W.D. and Tate, G.B., 1984, Rippled scour depressions on the inner continental shelf off central California: Journal Sedimentary Petrology, v. 54, p. 1280-1291.

Crosby, I.B. and Lougee, R.J., 1934, Glacial marginal shores and the marine limit in Massachusetts: Geological Society of America Bulletin, v. 45, p. 441-462.

Danforth, W.W., 1997, Xsonar/ShowImage; a complete system for rapid sidescan sonar processing and display: U.S. Geological Survey Open-File Report 97-686, 77 p.

Danforth, W.W., O'Brien, T.F., and Schwab, W.C., 1991, USGS image processing system; Near real-time mosaicking of high-resolution sidescan SONAR data: Sea Technology, v. 32, p. 54-60.

Ferrini, V.L. and Flood, R.D., 2005, A comparison of rippled scour depressions identified with multibeam sonar; Evidence of sediment transport in iner shelf environments: Continental Shelf Research, v. 25, p. 1979-1995.

Folger, D.W., O'Hara, C.J. and Robb, J.M., 1975, Maps showing bottom sediments on the continental shelf of the northeastern United States; Cape Ann, MA to Casco Bay, ME: U.S. Geological Survey Miscellaneous Investigation Series Map I-839, scale 1:250,000.

Folk, R.L., 1974, Petrology of Sedimentary Rocks, Austin, Tex., Hemphill Publishing Co., 184 p.

Goff, J.A., Mayer, L.A., Traykovski, P., Buynevich, I.V., Wilkens, R., Raymond, R., Glang, G., Evans, R.L., Olson, H. and Jenkins, C., 2005, Detailed investigation of sorted bedforms, or "rippled scour depressions", within the Martha's Vineyard Coastal Observatory, Massachusetts: Continental Shelf Research, v. 25, p. 461-484.

Green, M.O., Vincent, C.E. and Trembanis, A.C., 2004, Suspension of coarse and fine sand on a wave-dominated shoreface, with implications for the development of rippled scour depressions: Continental Shelf Research, v. 24, p. 317-335.

Gutierrez, B.T., Voulgaris, G. and Thieler, E.R., 2005, Exploring the persistence of sorted bedforms on the inner shelf of Wrightsville Beach, North Carolina: Continental Shelf Research, v. 25, p. 65-90.

Hollister, C.D., 1973. Atlantic continental shelf and slope of the United States; texture of surface sediments from New Jersey to southern Florida,:U.S. Geological Survey Professional Paper 529-M, 23 p.

Hastings, M.E., Poppe, L.J., and Hathaway, J.C., 2000, USGS East-Coast Sediment Database, Chapter 2 in Poppe, L.J., and Polloni, C.F., eds., USGS East-Coast Sediment Analysis; Procedures, Database and Georeferenced Displays: U.S. Geological Survey Open-file Report 00-358, DVD-ROM. (Also available online at

Kaye, C.A. and Barghoorn, E.S., 1964, Late Quaternary sea-level change and crustal rise at Boston, Massachusetts, with a note on the autocompaction of peat: Geological Society of America Bulletin, v. 75, p. 63-80.

Kelley, J.T., Belknap, D.F., and Shipp, R.C., 1989, Sedimentary framework of the southern Maine inner continental shelf; Influence of glaciation and sea-level change: Marine Geology, v. 90, p. 139-147.

Kelley, J.T., and Belknap, D.F., 1991, Physiography, surficial sediments and Quaternary stratigraphy of the inner continental shelf and nearshore region of the Gulf of Maine: Continental Shelf Research, v. 11, p. 1265-1283.

Knebel, H.J., and Circe, R.C., 1995, Seafloor environments within the Boston Harbor-Massachusetts Bay sedimentary system; A regional synthesis: Journal of Coastal Research, v. 11, p. 230-251.

Murray, A.B. and Thieler, E.R., 2004, A new hypothesis and exploratory model for the formation of large-scale inner-shelf sediment sorting and "rippled scour depressions": Continental Shelf Research, v. 24, p. 295-315.

NOS CO-OPS, 2005, National Oceanic and Atmospheric Administration, National Ocean Service, Center for Operational Oceanographic Products and Services: Tidal benchmark. Available online at

Oldale, R.N., 1985a, A drowned Holocene barrier spit off Cape Ann, Massachusetts: Geology, v. 13, p. 375-377.

Oldale, R.N., 1985b, Upper Wisconsinan submarine end moraines off Cape Ann, Massachusetts: Quaternary Research, v. 24, p. 187-196.

Oldale, R.N., Wommack, L.E., and Whitney, A.B., 1983, Evidence of a postglacial low relative sea-level stand on the drowned delta of the Merrimack River, western Gulf of Maine: Quaternary Research, v. 33, p. 325-336.

Oldale, R.N. and Bick, J., 1987, Geology of the inner continental shelf, Massachusetts Bay, Massachusetts: U.S. Geological Survey Field Study Map MF-1923, scale 1:125,000.

Oldale, R.N. and Edwards, G.B., 1990, Cores from marine geologic features in the western Gulf of Maine: U.S. Geological Survey Field Study Map MF-2147, Washington D.C., 1 sheet.

Oldale, R.N., Colman, S.M. and Jones, G.A., 1993, Radiocarbon ages from two submerged strandline features in the western Gulf of Maine and a sea-level curve for the northeastern Massachusetts coastal region: Quaternary Research, v. 40, p. 38-45.

Oldale, R.N., Knebel, H.J., and Bothner, M.H. 1994, Submerged and eroded drumlins off northeastern Massachusetts: Geomorphology, v. 9, p. 301-309.

OPUS, National Geodetic Survey. Online at

Poppe, L.J., Schlee, J., Butman, B. and Lane, C.M., 1989. Map showing distribution of surficial sediment, Gulf of Maine and Georges Bank: U.S. Geological Survey Miscellaneous Investigation Series Map I-1986-A, scale 1:1,000,000.

Poppe, L. and Polloni, C., eds., 2000, USGS East-Coast Sediment Analysis; Procedures, Database, and Georeferenced Displays: U.S. Geological Survey Open-file Report 00-348, DVD ROM. (Also available online at

Schlee, J., 1973, Atlantic continental shelf and slope of the United States - Sediment texture of the northeastern part: U.S. Geological Survey Professional Paper 529-H, 39 p.

Shaler, N.S., 1889, The geology of Cape Ann, Massachusetts: U.S. Geological Survey 9th Annual Report, Washington D.C., p. 529-611.

Stone, B.D. and Peper, J.D., 1981, Topographic control of deglaciation of eastern Massachusetts; Ice lobation and marine incursion, in B.J. Larson and B.D. Stone, eds., Late Wisconsinan glaciation of New England: Kendall/Hunt, Dubuque, Iowa, p. 145-166.

Trumbull, J.V., 1972, Atlantic shelf and slope of the United States; sand size fraction of bottom sediments, New Jersey to Nova Scotia: U.S. Geological Survey Professional Paper 529-K, 45 p.

University of New Brunswick, 2005, SwathEd, software developed by John Hughs Clarke and the Ocean Mapping Group, University of New Brunswick. Online at

Valentine, P.C., Blackwood, D.B. and Parolski, K.F., 2000, Seabed observation and sampling system: U.S. Geological Survey Fact Sheet FS-142-00. Available online at

Zen, E-an, Goldsmith, R., Ratcliffe, N.M., Robinson, P., and Stanley, R.S., 1983, Bedrock geologic map of Massachusetts: U.S. Geological Survey, Washington D.C., scale 1:250,000, 3 sheets.

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