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

Filter Total Items: 1737

Timing and mechanisms for the deposition of the glaciomarine mud in and around the Gulf of Maine: A discussion of alternative models Timing and mechanisms for the deposition of the glaciomarine mud in and around the Gulf of Maine: A discussion of alternative models

Glaciomarine mud in the Gulf of Maine, characterized by rhythmic seismic layers that mimic the morphology of the underlying surface, is composed of subequal amounts of silt and clay, variable amounts of sand, and sparse gravel-sized clasts. The mud is Wisconsinan in age and was deposited during the retreat of the last ice sheet. A beginning date of 38 ka, proposed by King and Fader (1986...
Authors
Robert N. Oldale

Structure of the lower crust beneath the Carolina Trough, U.S. Atlantic continental margin Structure of the lower crust beneath the Carolina Trough, U.S. Atlantic continental margin

Data from three large-offset seismic profiles provide information on the crustal structure beneath the Carolina trough. The profiles, obtained by the U.S. Geological Survey, the Naval Oceanographic Research Development Agency, and the Scripps Institution of Oceanography in 1985, were oriented parallel to the trough and were located (1) seaward of the East Coast Magnetic Anomaly (ECMA)...
Authors
Anne M. Trehu, A. Ballard, L.M. Dorman, J.F. Gettrust, Kim D. Klitgord, A. Schreiner

Seismic-reflection data from R/V FARNELLA cruises FRNL82-7, FRNL85-1, FRNL85-2, and FRNL85-3A in the U.S. Gulf of Mexico EEZ Seismic-reflection data from R/V FARNELLA cruises FRNL82-7, FRNL85-1, FRNL85-2, and FRNL85-3A in the U.S. Gulf of Mexico EEZ

During the winter of 1982 and the summer and early fall of 1985, the U.S. Geological Survey (USGS) in cooperation with the Institute of Oceanographic Sciences of the United Kingdom collected approximately 30,508 line kilometers of seismic-reflection data in the U.S. Gulf of Mexico Exclusive Economic Zone (EEZ) as part of a USGS program to map the EEZ. In water depths exceeding 3,000 m...
Authors
D.C. Twichell, B.A. McGregor, D.J. Lubinski

Phosphorite potential in the continental shelf off Georgia: Results of the TACTS core studies Phosphorite potential in the continental shelf off Georgia: Results of the TACTS core studies

No abstract available.
Authors
Paul Huddlestun, Vernon J. Henry, Judith A. Commeau, Jana Da Silva, F.T. Manheim, Peter Popenoe, James R. Herring

Chemical composition of ferromanganese crusts in the world ocean: a review and comprehensive database Chemical composition of ferromanganese crusts in the world ocean: a review and comprehensive database

A comprehensive database of chemical and mineralogical properties for ferromanganese crusts collected throughout the Atlantic, Pacific, and Indian Oceans, and has been assembled from published and unpublished sources which provide collection and analytical information for these samples. These crusts, their chemical compositions and natural distribution, have been a topic of interest to...
Authors
Frank T. Manheim, Candice M. Lane-Bostwick

Flow separation of currents in shallow water Flow separation of currents in shallow water

Flow separation of currents in shallow coastal areas is investigated using a boundary layer model for two-dimensional (depth-averaged) tidal flow past an elliptic headland. If the shoaling region near the coast is narrow compared to the scale of the headland, bottom friction causes the flow to separate just downstream of the point where the pressure gradient switches from favoring to...
Authors
Richard P. Signell

The Blake Plateau Basin and Carolina Trough The Blake Plateau Basin and Carolina Trough

Presently, the continental margin of the southeastern United States (Fig. 1) forms a zone of transition between the actively building, steep-fronted carbonate platform of the Bahamas and the typical eastern North American terrigenous clastic-dominated, drowned, shelf-slope-rise configuration. This region of the continental margin is underlain by two major sedimentary basins—the Blake...
Authors
William P. Dillon, Peter Popenoe

Cobalt in ferromanganese crusts as a monitor of hydrothermal discharge on the Pacific sea floor Cobalt in ferromanganese crusts as a monitor of hydrothermal discharge on the Pacific sea floor

Ferromanganese oxide crusts, which accumulate on unsedimented surfaces in the open ocean1–6, derive most of their metal content from dissolved and particulate matter in ambient bottom water7,8, in proportions modified by the variable scavenging efficiency of the oxide phase for susceptible ions9. They differ in this respect from abyssal nodules, much of whose metals are remobilized from...
Authors
F.T. Manheim, C.M. Lane-Bostwick

Mineral resources of the U.S. Atlantic continental margin Mineral resources of the U.S. Atlantic continental margin

Most geologic materials may be usable resources in some form and at some time, whether it be for general land fill and aggregate, beach replenishment, construction material, or as a source of metals and fuels. Thus, most natural materials occurring within the Atlantic continental margin are resources, defined as “materials, including those only surmised to exist, that have present or...
Authors
Stanley R. Riggs, Frank T. Manheim

Late Pleistocene drainage systems beneath Delaware Bay Late Pleistocene drainage systems beneath Delaware Bay

Analyses of an extensive grid of seismic-reflection profiles, along with previously published sedimentary data and geologic information from surrounding coastal areas, outline the ancestral drainage systems of the Delaware River beneath lower Delaware Bay. Major paleovalleys within these systems have southeast trends, relief of 10-35 m, widths of 1-8 km, and axial depths of 31-57 m below...
Authors
H.J. Knebel, R.C. Circe

Late Wisconsinan-Holocene paleogeography of Delaware Bay; a large coastal plain estuary Late Wisconsinan-Holocene paleogeography of Delaware Bay; a large coastal plain estuary

Analyses of an extensive grid of seismic reflection profiles along with previously published core data and modern sedimentary environment information from surrounding coastal areas permit an outline of the paleogeography of the large Delaware Bay estuary during the last transgression of sea level. During late Wisconsinan times, the Delaware River system eroded a dendritic drainage...
Authors
H.J. Knebel, C.H. Fletcher, J.C. Kraft
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