Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Geohydrology and simulated ground-water flow in northwestern Elkhart County, Indiana Geohydrology and simulated ground-water flow in northwestern Elkhart County, Indiana
In 1994, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and the City of Elkhart, developed a ground-water model of the Elkhart, Indiana, area to determine the avail-ability and source of water at potential new well fields. The modeled area covered 190 square miles of northwestern Elkhart County and a small part of southern Michigan. Three...
Authors
L. D. Arihood, D.A. Cohen
A Review of Semivolatile and Volatile Organic Compounds in Highway Runoff and Urban Stormwater A Review of Semivolatile and Volatile Organic Compounds in Highway Runoff and Urban Stormwater
Many studies have been conducted since 1970 to characterize concentrations of semivolatile organic compounds (SVOCs) in highway runoff and urban stormwater. To a lesser extent, studies also have characterized concentrations of volatile organic compounds (VOCs), estimated loads of SVOCs, and assessed potential impacts of these contaminants on receiving streams. This review evaluates the...
Authors
Thomas J. Lopes, Shannon G. Dionne
Mineral resource assessment; Custer and Gallatin national forests, Montana Mineral resource assessment; Custer and Gallatin national forests, Montana
No abstract available.
Authors
Jane Marie Hammarstrom, Anna B. Wilson, Bradley S. Van Gosen, Robert R. Carlson, Dolores M. Kulik, Gregory K. Lee, James E. Elliott, William J. Perry, Edward A. du Bray, Michael L. Zientek
A new view into the Cascadia subduction zone and volcanic arc: Implications for earthquake hazards along the Washington margin A new view into the Cascadia subduction zone and volcanic arc: Implications for earthquake hazards along the Washington margin
In light of suggestions that the Cascadia subduction margin may pose a significant seismic hazard for the highly populated Pacific Northwest region of the United States, the U.S. Geological Survey (USGS), the Research Center for Marine Geosciences (GEOMAR), and university collaborators collected and interpreted a 530-km-long wide-angle onshore-offshore seismic transect across the...
Authors
T. Parsons, A.M. Trehu, J.H. Luetgert, K. Miller, F. Kilbride, R.E. Wells, M. A. Fisher, E. Flueh, Uri S. ten Brink, N.I. Christensen
A classification of quaternary dating methods A classification of quaternary dating methods
No abstract available.
Authors
S.M. Colman, K. L. Pierce
Characterizing a ground water basin in a New England mountain and valley terrain Characterizing a ground water basin in a New England mountain and valley terrain
A ground water basin is defined as the volume of subsurface through which ground water flows from the water table to a specified discharge location. Delineating the topographically defined surface water basin and extending it vertically downward does not always define the ground water basin. Instead, a ground water basin is more appropriately delineated by tracking ground water flowpaths...
Authors
Claire R. Tiedeman, Daniel J. Goode, Paul A. Hsieh
Nonlinear refraction and reflection travel time tomography Nonlinear refraction and reflection travel time tomography
We develop a rapid nonlinear travel time tomography method that simultaneously inverts refraction and reflection travel times on a regular velocity grid. For travel time and ray path calculations, we apply a wave front method employing graph theory. The first-arrival refraction travel times are calculated on the basis of cell velocities, and the later refraction and reflection travel...
Authors
Jiahua Zhang, Uri S. ten Brink, M.N. Toksoz
Major occurrences and reservoir concepts of marine clathrate hydrates: Implications of field evidence Major occurrences and reservoir concepts of marine clathrate hydrates: Implications of field evidence
This paper is part of the special publication Gas hydrates: relevance to world margin stability and climatic change (eds J.P. Henriet and J. Mienert). Questions concerning clathrate hydrate as an energy resource, as a factor in modifying global climate and as a triggering mechanism for mass movements invite consideration of what factors promote hydrate concentration, and what the...
Authors
J.S. Booth, W.J. Winters, William P. Dillon, M. B. Clennell, M.M. Rowe
Gene conservation: management and evolutionary units freshwater bivalve management-introduction to the proceedings Gene conservation: management and evolutionary units freshwater bivalve management-introduction to the proceedings
No abstract available.
Authors
T.L. King, E.C. Pendleton, R.F. Villella
Effect of dietary amprolium on tissue thiamand cayuga syndrome Atlantic salmon Effect of dietary amprolium on tissue thiamand cayuga syndrome Atlantic salmon
No abstract available.
Authors
K. Fynn-Aikins, P.R. Bowser, D. C. Honeyfield, J.D. Fitzsimons, H. G. Ketola
Osmoregulatory actions of the GH/IGF axis in non-salmonid teleosts Osmoregulatory actions of the GH/IGF axis in non-salmonid teleosts
Salmonid fishes provided the first findings on the influence of the growth hormone (GH)/insulin-like growth factor I (IGF-I) axis on osmoregulation in teleost fishes. Recent studies on non-salmonid species, however, indicate that this physiological action of the GH/IGF-I axis is not restricted to salmonids or anadromous fishes. GH-producing cells in the pituitary of fish acclimated to...
Authors
J. M. Mancera, S. D. McCormick