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Earthquake recurrence estimates for northern Caribbean faults from combinatorial optimization

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Woods Hole Coastal and Marine Science Center

2023 Annual Report

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Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery

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Hydroacoustic observations reveal drivers of mixing and salinization of a karst subterranean estuary during intense precipitation

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

Featured Journal Article

Invasive Phragmites plants on the shore of a lake

Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery

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Featured USGS Series

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Woods Hole Coastal and Marine Science Center—2023 Annual Report.  The 2023 annual report highlights accomplishments, includes a list of publications, and summarizes the work of the center and each of the science groups.

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Sound Waves

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Coastal and Marine Research News from Across the USGS

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Filter Total Items: 1737

Spring sapping on the lower continental slope, offshore New Jersey Spring sapping on the lower continental slope, offshore New Jersey

Undersea discharge of ground water during periods of lower sea level may have eroded valleys on part of the lower continental slope, offshore New Jersey. Steep-headed basins, cliffed and terraced walls, and irregular courses of these valleys may have been produced by sapping of exposed near-horizontal Tertiary strata. Joints in Eocene calcareous rocks would have localized ground-water...
Authors
James Robb
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

The Georges Bank monitoring program 1983: Analysis of trace metals in bottom sediments The Georges Bank monitoring program 1983: Analysis of trace metals in bottom sediments

From July 1981, when drilling began on Georges Bank, to May 1982, the concentration of barium, a major element in drilling mud, has increased by a factor of 3.5 in bulk sediments 200 m from the drill site in block 410 and by a factor of 2.3 at the drill site in block 312. The postdrilling barium concentrations are within the range of predriiling concentrations measured at other locations...
Authors
Michael H. Bothner, R.R. Rendigs, Esma Campbell, M. W. Doughten, P. Aruscavage, A. Dorrzapf, R. Johnson, C.M. Parmenter, M. Pickering, D. Brewster, F. Brown
By
Woods Hole Coastal and Marine Science Center

Ferromanganese crust resources in the Pacific and Atlantic Oceans Ferromanganese crust resources in the Pacific and Atlantic Oceans

Ferromanganese crusts on raised areas of the ocean floor have joined abyssal manganese nodules and hydrothermal sulfides as potential marine resources. Significant volumes of cobalt-rich (about 1% Co) crusts have been identified to date within the US Exclusive Economic Zone (EEZ) in the Central Pacific: in the NW Hawaiian Ridge and Seamount region and in the seamounts in the Johnston...
Authors
R.F. Commeau, A. Clark, Chad Johnson, F.T. Manheim, P. Aruscavage, C.M. Lane
By
Woods Hole Coastal and Marine Science Center

Slope-stability analysis and creep susceptibility of Quaternary sediments on the northeastern United States continental slope Slope-stability analysis and creep susceptibility of Quaternary sediments on the northeastern United States continental slope

The continental slope off the northeastern United States is a relatively steep, morphologically complex surface which shows abundant evidence of submarine slides and related processes. Because this area may be developed by the petroleum industry, questions arise concerning the potential for further slope failures or unacceptable deformations and the conditions necessary to cause such...
Authors
James Booth, Armand Silva, Stephen A. Jordan
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Magnetic properties of the Bay of Islands ophiolite suite and implications for the magnetization of oceanic crust Magnetic properties of the Bay of Islands ophiolite suite and implications for the magnetization of oceanic crust

Rock magnetic properties, opaque mineralogy, and degree of metamorphism were determined for 101 unoriented samples from the North Arm and Blow-Me-Down massifs of the Bay of Islands ophiolite complex, Newfoundland. The weathered and metamorphosed extrusive basalt samples have a weak, secondary magnetization arising from oxidation and exsolution of ilmenite of unknown origin. The initial
Authors
B. Swift, H. Johnson
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Ferromanganese micronodules from the surficial sediments of Georges Bank Ferromanganese micronodules from the surficial sediments of Georges Bank

Ferromanganese micronodules have been found on Georges Bank, off the U.S. northeast coast, distributed throughout the surficial sediments within an area about 125 km long and at least 12 km wide. These coarse, sand-sized concretions have precipitated from metal-rich interstitial waters and contain many of the textural and structural features common to other neritic nodules. Most of the...
Authors
L.J. Poppe, J.A. Commeau, F.T. Manheim, P. Aruscavage
By
Woods Hole Coastal and Marine Science Center

Water gun vs air gun: A comparison Water gun vs air gun: A comparison

The water gun is a relatively new marine seismic sound source that produces an acoustic signal by an implosive rather than explosive mechanism. A comparison of the source characteristics of two different-sized water guns with those of conventional air guns shows the the water gun signature is cleaner and much shorter than that of a comparable-sized air gun: about 60-100 milliseconds (ms)...
Authors
D. Hutchinson, R. Detrick
By
Woods Hole Coastal and Marine Science Center

The continental slope off New England: A long-range sidescan-sonar perspective The continental slope off New England: A long-range sidescan-sonar perspective

The first continuous overview of a large segment of the continental slope and rise off the northeastern United States has been obtained using the GLORIA II long-range sidescan-sonar system. Extensive dissection by canyon and gully systems and evidence of possible large-scale sediment sliding are seen on the slope. The style and degree of incision, as well as the numbers and locations of...
Authors
Kathryn Scanlon
By
Woods Hole Coastal and Marine Science Center

An extensive data base for cobalt-rich ferromanganese crusts from the world oceans An extensive data base for cobalt-rich ferromanganese crusts from the world oceans

A new database for ferromanganese crusts from the world oceans is being compiled by the U.S. Geological Survey. Crusts differ from abyssal nodules by forming principally on steeper, raised areas or current-swept plateaus in the oceans. Some crusts contain relatively large concentrations of cobalt (1.0%) in areas within national territorial jurisdictions.
Authors
Frank Manheim, T.H. Ling, C.M. Lane
By
Woods Hole Coastal and Marine Science Center

Who is doing what in marine dumping? Who is doing what in marine dumping?

No abstract available.
Authors
Frank Manheim
By
Woods Hole Coastal and Marine Science Center

Physical oceanography of continental shelves Physical oceanography of continental shelves

Knowledge of the physical oceanography of continental shelves has increased tremendously in recent years, primarily as a result of new current and hydrographic measurements made in locations where no comparable measurements existed previously. In general, observations from geographically distinct continental shelves have shown that the nature of the flow may vary considerably from region...
Authors
J. Allen, Robert Beardsley, J. Blanton, William Boicourt, Bradford Butman, L. Coachman, Adriana Huyer, Thomas Kinder, Thomas Royer, J. Schumacher, Robert Smith, W. Sturges, Clinton Winant
By
Woods Hole Coastal and Marine Science Center

Evidence for a postglacial low relative sea-level stand in the drowned delta of the Merrimack River, Western Gulf of Maine Evidence for a postglacial low relative sea-level stand in the drowned delta of the Merrimack River, Western Gulf of Maine

A submerged delta of the Merrimack River, located offshore between Cape Ann, Massachusetts, and the New Hampshire border, indicates a postglacial low relative see-level stand of about -47 m. The low stand is inferred to date to 10,500 yr B.P., but a lack of age control makes this assignment uncertain. A curve based on a late Wisconsinan, high relative sea-level stand of +32m at 13,000 yr...
Authors
R. Oldale, L. Wommack, A.B. Whitney
By
Woods Hole Coastal and Marine Science Center
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