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Publications

Scientific literature and information products produced by Woods Hole Coastal and Marine Science Center staff

Filter Total Items: 1737

Insights on geochemical cycling of U, Re and Mo from seasonal sampling in Boston Harbor, Massachusetts, USA Insights on geochemical cycling of U, Re and Mo from seasonal sampling in Boston Harbor, Massachusetts, USA

This study examined the removal of U, Mo, and Re from seawater by sedimentary processes at a shallow-water site with near-saturation bottom water O2 levels (240–380 μmol O2/L), very high organic matter oxidation rates (annually averaged rate is 880 μmol C/cm2/y), and shallow oxygen penetration depths (4 mm or less throughout the year). Under these conditions, U, Mo, and Re were removed...
Authors
J.L. Morford, W. R. Martin, Linda H. Kalnejais, R. Francois, Michael H. Bothner, I.-M. Karle

Role of sediment resuspension in the remobilization of particulate-phase metals from coastal sediments Role of sediment resuspension in the remobilization of particulate-phase metals from coastal sediments

The release of particulate-phase trace metals due to sediment resuspension has been investigated by combining erosion chamber experiments that apply a range of shear stresses typically encountered in coastal environments with a shear stress record simulated by a hydrodynamic model. Two sites with contrasting sediment chemistry were investigated. Sediment particles enriched in silver...
Authors
Linda H. Kalnejais, William R. Martin, Richard P. Signell, Michael H. Bothner

Coastal change-potential assessment of Sleeping Bear Dunes, Indiana Dunes, and Apostle Islands National Lakeshores to lake-level changes Coastal change-potential assessment of Sleeping Bear Dunes, Indiana Dunes, and Apostle Islands National Lakeshores to lake-level changes

A change-potential index (CPI) was used to map the susceptibility of the shoreline to future lake-level change within Apostle Islands, Indiana Dunes, and Sleeping Bear Dunes National Lakeshores (NL) along Lake Superior and Lake Michigan. The CPI in the Great Lakes setting ranks the following in terms of their physical contribution to lake-level related coastal change: geomorphology...
Authors
Elizabeth A. Pendleton, E. Robert Thieler, S. Jeffress Williams

Generation and propagation of nonlinear internal waves in Massachusetts Bay Generation and propagation of nonlinear internal waves in Massachusetts Bay

During the summer, nonlinear internal waves (NLIWs) are commonly observed propagating in Massachusetts Bay. The topography of the area is unique in the sense that the generation area (over Stellwagen Bank) is only 25 km away from the shoaling area, and thus it represents an excellent natural laboratory to study the life cycle of NLIWs. To assist in the interpretation of the data...
Authors
A. Scotti, R.C. Beardsley, B. Butman

Ensuring confidence in radionuclide-based sediment chronologies and bioturbation rates Ensuring confidence in radionuclide-based sediment chronologies and bioturbation rates

Sedimentary records of naturally occurring and fallout-derived radionuclides are widely used as tools for estimating both the ages of recent sediments and rates of sedimentation and bioturbation. Developing these records to the point of data interpretation requires careful sample collection, processing, analysis and data modeling. In this work, we document a number of potential pitfalls...
Authors
John Crusius, Timothy C. Kenna

USGS advances in integrated, high-resolution sea-floor mapping: inner continental shelf to estuaries USGS advances in integrated, high-resolution sea-floor mapping: inner continental shelf to estuaries

The U.S. Geological Survey (USGS) has been involved in geological mapping of the sea floor for the past thirty years. Early geophysical and acoustic mapping efforts using GLORIA (Geologic LOng Range Inclined ASDIC) a long-range sidescan-sonar system, provided broad-scale imagery of deep waters within the U.S. Exclusive Economic Zone (EEZ). In the early 1990's, research emphasis shifted...
Authors
J. F. Denny, W. C. Schwab, D.C. Twichell, T.F. O’Brien, W. W. Danforth, D.S. Foster, E. Bergeron, C.W. Worley, B.J. Irwin, B. Butman, P. C. Valentine, W. E. Baldwin, R.A. Morton, E.R. Thieler, D.R. Nichols, B.D. Andrews

Submarine groundwater discharge to Tampa Bay: Nutrient fluxes and biogeochemistry of the coastal aquifer Submarine groundwater discharge to Tampa Bay: Nutrient fluxes and biogeochemistry of the coastal aquifer

To separately quantify the roles of fresh and saline submarine groundwater discharge (SGD), relative to that of rivers, in transporting nutrients to Tampa Bay, Florida, we used three approaches (Darcy's Law calculations, a watershed water budget, and a 222Rn mass-balance) to estimate rate of SGD from the Pinellas peninsula. Groundwater samples were collected in 69 locations in the...
Authors
Kevin D. Kroeger, Peter W. Swarzenski, Jason Greenwood, Christopher Reich

Submarine slides north of Puerto Rico and their tsunami potential Submarine slides north of Puerto Rico and their tsunami potential

New multibeam bathymetry of the entire Puerto Rico trench reveals numerous retrograde slope failures at various scales at the edge of the carbonate platform north of Puerto Rico and the Virgin Islands. The slumped material comprises carbonate blocks, which fail, at least in initial stages, as a coherent rock mass. This, combined with the fact that the edge of the carbonate platform is...
Authors
Uri S. ten Brink, Eric L. Geist, Patrick J. Lynett, Brian D. Andrews

Physical properties of pressurized sediment from hydrate ridge Physical properties of pressurized sediment from hydrate ridge

As part of an ongoing laboratory study, preliminary acoustic, triaxial strength, and electrical resistivity results are presented from a test performed on a clayey silt sediment sample recovered from Site 1249 at the summit of southern Hydrate Ridge during Ocean Drilling Program Leg 204. The test specimen was stored and transported in two different methane-charged pressure vessels until...
Authors
William J. Winters, William F. Waite, David H. Mason, Lauren Gilbert

Textural analysis of marine sediments at the USGS Woods Hole Science Center; methodology and data on DVD Textural analysis of marine sediments at the USGS Woods Hole Science Center; methodology and data on DVD

Marine sediments off the eastern United States vary markedly in texture (i.e., the size, shape, composition, and arrangement of their grains) due to a complex geologic history. For descriptive purposes, however, it is typically most useful to classify these sediments according to their grain-size distributions. In 1962, the U.S. Geological Survey began a program to study the marine...
Authors
Lawrence J. Poppe, S. Jeffress Williams, Valerie F. Paskevich
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