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

Filter Total Items: 1737

Seismic images of a tectonic subdivision of the Greenville Orogen beneath lakes Ontario and Erie Seismic images of a tectonic subdivision of the Greenville Orogen beneath lakes Ontario and Erie

New seismic data from marine air-gun and Vibroseis profiles in Lake Ontario and Lake Erie provide images of subhorizontal Phanerozoic sediments underlain by a remarkable series of easterly dipping reflections that extends from the crystalline basement to the lower crust. These reflections are interpreted as structural features of crustal-scale subdivisions within the Grenville Orogen...
Authors
D. A. Forsyth, Bernd Milkereit, A. Davidson, S. Hanmer, Deborah R. Hutchinson, W. J. Hinze, R.F. Mereu

Wave climate and nearshore lakebed response, Illinois Beach State Park, Lake Michigan Wave climate and nearshore lakebed response, Illinois Beach State Park, Lake Michigan

The Lake Michigan outer nearshore zone (water depths ≈5 to 25 m) off Illinois Beach State Park is subjected to a spectrum of wave conditions, including those generated by major storms. Only under these major storm conditions is there a realistic potential for wave-lakebed interaction (and associated wind-driven currents) to cause a significant net modification to the outer nearshore...
Authors
J.S. Booth

Transport of sludge-derived organic pollutants to deep-sea sediments at deep water dump site 106 Transport of sludge-derived organic pollutants to deep-sea sediments at deep water dump site 106

Linear alkylbenzenes (LABs), coprostanol and epi-coprostanol, were detected in sediment trap and bottom sediment samples at the Deep Water Dump Site 106 located 185 km off the coast of New Jersey, in water depths from 2400 to 2900 m. These findings clearly indicate that organic pollutants derived from dumped sludge are transported through the water column and have accumulated on the deep...
Authors
H. Takada, J.W. Farrington, Michael H. Bothner, C.G. Johnson, B.W. Tripp

Characteristics of the near-bottom suspended sediment field over the continental shelf off northern California based on optical attenuation measurements during STRESS and SMILE Characteristics of the near-bottom suspended sediment field over the continental shelf off northern California based on optical attenuation measurements during STRESS and SMILE

Time-series measurements of current velocity, optical attenuation and surface wave intensity obtained during the Sediment Transport Events on Shelves and Slopes (STRESS) experiments, combined with shipboard measurements of conductivity, temperature and optical attenuation obtained during the Shelf Mixed Layer Experiment (SMILE), provide a description of the sediment concentration field...
Authors
J.H. Trowbridge, B. Butman, R. Limeburner

U.S. Geological Survey yearbook, fiscal year 1993: At work across the Nation U.S. Geological Survey yearbook, fiscal year 1993: At work across the Nation

The need for earth science has never been more paramount. The devastating flooding of the Mississippi River this past year, strikingly portrayed on the cover and discussed in detail in this report (p. 37-42), was a sobering reminder of nature's elemental power. As a Nation, we face many environmental and economic challenges, such as natural hazards, that can be addressed effectively only...
Authors
Water Resources Division U.S. Geological Survey

210Pb balance and implications for particle transport on the continental shelf, U.S. Middle Atlantic Bight 210Pb balance and implications for particle transport on the continental shelf, U.S. Middle Atlantic Bight

Supply of 210Pb to the continental shelf off the northeastern United States is dominated by the deposition from the atmosphere, the rate of which is reliably known from previously published work. Excess 210Pb inventories in the shelf sediments show accumulations that are nearly in balance with the supply, even in areas of relict sands where it is believed that no net accumulation of...
Authors
M.P. Bacon, Rebecca A. Belastock, Michael H. Bothner

Deglaciation, lake levels, and meltwater discharge in the Lake Michigan basin Deglaciation, lake levels, and meltwater discharge in the Lake Michigan basin

The deglacial history of the Lake Michigan basin, including discharge and routing of meltwater, is complex because of the interaction among (1) glacial retreats and re-advances in the basin (2) the timing of occupation and the isostatic adjustment of lake outlets and (3) the depositional and erosional processes that left evidence of past lake levels. In the southern part of the basin, a...
Authors
Steven M. Colman, J.A. Clark, L. Clayton, A.K. Hansel, C.E. Larsen

Historical shoreline mapping (I): improving techniques and reducing positioning errors Historical shoreline mapping (I): improving techniques and reducing positioning errors

A critical need exists among coastal researchers and policy-makers for a precise method to obtain shoreline positions from historical maps and aerial photographs. A number of methods that vary widely in approach and accuracy have been developed to meet this need. None of the existing methods, however, address the entire range of cartographic and photogrammetric techniques required for...
Authors
E. Robert Thieler, William W. Danforth

Submarine canyon initiation by downslope-eroding sediment flows: Evidence in late Cenozoic strata on the New Jersey continental slope Submarine canyon initiation by downslope-eroding sediment flows: Evidence in late Cenozoic strata on the New Jersey continental slope

Multibeam bathymetry and seismic reflection profiles of the New Jersey continental slope reveal a series of abandoned and now-buried submarine canyons that have apparently influenced the development of modern canyons. The buried canyons are infilled along nine slope-wide unconformities separating upper-middle Miocene to Pleistocene sediments that thin downslope. Canyons infilled during...
Authors
Lincoln F. Pratson, William B. F. Ryan, Gregory S. Mountain, David C. Twichell

Meteoroid mayhem in Ole Virginny: Source of the North American tektite strewn field Meteoroid mayhem in Ole Virginny: Source of the North American tektite strewn field

New seismic reflection data from Chesapeake Bay reveal a buried, 85-km-wide, 1.5-2.0-km-deep, peak-ring impact crater, carved through upper Eocene to Lower Cretaceous sedimentary strata and into underlying pre-Mesozoic crystalline basement rocks. A polymictic, late Eocene impact breccia, composed mainly of locally derived sedimentary debris (determined from four continuous cores)...
Authors
C. Wylie Poag, David S. Powars, Lawrence J. Poppe, Robert B. Mixon

The geologic framework of southern Lake Michigan The geologic framework of southern Lake Michigan

The bathymetry is controlled by the underlying bedrock. Bedrock comprises Silurian dolomite and Devonian limestone and shale. Quaternary sediment, 10 to 40 m thick, overlies bedrock. From Waukegan, Illinois, south to Indiana Harbor, the bottom is floored by till, sand, pebbles, and cobbvles. The lake floor is erosional or nondepositional where till or gravel-cobble pavement is exposed...
Authors
D.S. Foster, D. W. Folger

Fluid expulsion sites on the Cascadia accretionary prism: mapping diagenetic deposits with processed GLORIA imagery Fluid expulsion sites on the Cascadia accretionary prism: mapping diagenetic deposits with processed GLORIA imagery

Point-discharge fluid expulsion on accretionary prisms is commonly indicated by diagenetic deposition of calcium carbonate cements and gas hydrates in near-surface (
Authors
Bobb Carson, Erol Seke, Valerie F. Paskevich, Mark L. Holmes
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