The significance of ground water to the accumulation of iron and manganese in the sediments of two hydrologically distinct lakes in north‐central Minnesota: A geological perspective
Walter E. Dean, Brian Neff, Donald O. Rosenberry, Thomas C. Winter, Renee S. Parkhurst
2006, Ground Water (41) 951-963
Williams and Shingobee lakes are at opposite ends of the local ground water flow system in the Shingobee River Headwaters Area (SRHA) in north‐central Minnesota. Williams Lake, situated near the highest point in the flow system, has no surface inlet or outlet, and ground water and precipitation are the only...
The geochemical record of the last 17,000 years in the Guaymas Basin, Gulf of California
Walter E. Dean
2006, Chemical Geology (232) 87-98
Sediments deposited on the western slope of the Guaymas Basin in the central Gulf of California are composed predominantly of detrital clastic material and biogenic silica (biopal), with minor organic material (average of 2.8% organic carbon) and calcium carbonate. The CaCO3 is derived from calcareous plankton and is highly variable ranging...
Geology of Delaware Water Gap National Recreation Area, New Jersey-Pennsylvania
Jack B. Epstein
2006, GSA Field Guides (8) 47-63
Many of the parks within the National Park System owe their uniqueness to their geologic framework. Their scenery is the result of diverse natural processes acting upon a variety of rocks that were deposited in varied environments in the geologic past. The Delaware Water Gap National Recreation Area (DEWA) contains...
North corridor Silurian-Devonian aquifer study frequently asked questions
2006, Report
No abstract available....
Research plan and preliminary results: A field research site for emerging contaminants in Iowa
Douglas J. Schnoebelen, Dana W. Kolpin, Larry B. Barber, Edward T. Furlong, Michael Meyer, M. Skopec
2006, Journal of the Iowa Academy of Science (113) 1-9
Research has recently documented the prevalence of a wide variety of pharmaceuticals and other emerging contaminants (ECs) in streams across the United States. Wastewater treatment plants (WWTPs) have been found to be an important source and collection point of ECs to streams as many ECs are incompletely removed during treatment....
Fulfilling a paradoxical mandate: can the Environmental Water Account ensure the reliability of freshwater exports from the Sacramento-San Joaquin Delta and simultaneously protect delta smelt (Hypomesus transpacificus) from excessive entrainment?
Zach Hymanson, Larry R. Brown
2006, Interagency Ecological Program Newsletter (19) 28-49
The San Francisco Estuary (SFE) is often defined by its extremes. It is considered one of the most urbanized estuaries in the world (Conomos 1979, Nichols et al. 1986), and one of the most invaded estuaries in the United States, with hundreds of aquatic nonindigenous species established throughout the system...
Watershed characteristics and pre-restoration surface-water hydrology of Minebank Run, Baltimore County, Maryland, water years 2002-04
Edward J. Doheny, Roger J. Starsoneck, Elise A. Striz, Paul M. Mayer
2006, Scientific Investigations Report 2006-5179
Stream restoration efforts have been ongoing in Maryland since the early 1990s. Physical stream restoration often involves replacement of lost sediments to elevate degraded streambeds, re-establishment of riffle-pool sequences along the channel profile, planting vegetation in riparian zones, and re-constructing channel banks, point bars, flood plains, and stream-meanders. The primary...
Multimodeling: new approaches for linking ecological models
Louis J. Gross, Donald L. DeAngelis
J. Michael Scott, Patricia J. Heglund, Michael L. Morrison, editor(s)
2006, Book chapter, Predicting Species Occurences: Issues of Accuracy and Scale
The Everglades region of South Florida presents one of the major natural system management challenges facing the United States. With its assortment of alligators, crocodiles, manatees, panthers, large mixed flocks of wading birds, highly diverse subtropical flora, and sea of sawgrass, the ecosystem is unique in this country (Davis...
Quality-assurance plan for the analysis of fluvial sediment by the U.S. Geological Survey New Mexico Water Science Center Sediment Laboratory
Jessica A. Stiles
2006, Open-File Report 2006-1333
This report describes laboratory procedures used by the U.S. Geological Survey New Mexico Water Science Center Sediment Laboratory for the processing and analysis of fluvial-sediment samples for concentration of sand and finer material. The report details the processing of a sediment sample through the laboratory from receiving the sediment sample,...
Generalized boundaries of the National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 2001-2012
K.J. Hitt
2006, Report
This is a GENERALIZED version of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas to be studied during the second decade of...
Generalized boundaries of the National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001
K.J. Hitt
2006, Report
This is a GENERALIZED version of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas studied during the first decade of the NAWQA...
National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 2001-2012
K.J. Hitt, N. Nakagaki
2006, Report
This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas to be studied during the second cycle of the NAWQA...
National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001
K.J. Hitt, N. Nakagaki
2006, Report
This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas studied during the first decade of the NAWQA Program, from...
Variation in spring nearshore resident fish species composition and life histories in the lower San Joaquin watershed and delta
Larry R. Brown, Jason T. May
2006, San Francisco Estuary and Watershed Science (4)
Providing freshwater to human populations while protecting or rehabilitating ecosystem health is a significant challenge to water resource managers and requires accurate knowledge of aquatic resources. Previous studies of fish assemblages in the San Francisco Estuary and watershed have focused on specific habitat types, water bodies, or geographic subregions. In...
Heat as a ground water tracer at the Russian River RBF facility, Sonoma County, California
Jim Constantz, Grace W. Su, Christine Hatch
2006, Book chapter, Riverbank filtration hydrology
Temperature is routinely collected as a water quality parameter, but only recently utilized as an environmental tracer of stream exchanges with ground water (Stonestrom and Constantz, 2003). In this paper, water levels and seasonal temperatures were used to estimate streambed hydraulic conductivities and water fluxes. Temperatures and water levels...
Geomorphological, depositional, and foraminiferal indicators of late Quaternary tectonic uplift in Iskenderun Bay, Turkey
Valentina Yanko-Hombach, H. Koral, Niyazi Avsar, Irena Motnenko, Mary McGann
Yilderim Dilek, Spyros Pavlides, editor(s)
2006, Book chapter, Postcollisional tectonics and magmatism in the Mediterranean region and Asia
Iskenderun Bay is a major shallow embayment in the eastern part of the Mediterranean Sea, where the African and Anatolian Plates converge. This tectonically active basin was investigated for oceanographic, sedimentological, geochemical, and foraminiferal parameters. On the basis of the data acquired, the distribution of living and fossil foraminifera in...
Possible deep-water gas hydrate accumulations in the Bering Sea
Ginger A. Barth, David W. Scholl, Jonathan R. Childs
2006, Fire in the Ice: NETL Methane Hydrate Newsletter (6) 10-11
Seismic reflection images from the deep-water Aleutian and Bowers Basins of the Bering Sea contain many hundreds of acoustic Velocity-AMPlitude (VAMP) anomalies, each of which may represent a large accumulation of natural gas hydrate. Against a backdrop of essentially horizontal sedimentary reflections, the VAMP anomalies stand out as both high-amplitude...
The San Andreas fault on the San Francisco peninsula
Carol S. Prentice, Greg W. Bartow, N. Timothy Hall, Michele Liapes
Carol S. Prentice, Judith G. Scotchmoor, Eldridge M. Moores, Jon P. Kiland, editor(s)
2006, Book chapter, 1906 San Francisco earthquake centennial field guides: Field trips associated with the 100th Anniversary Conference, 18–23 April 2006, San Francisco, California
This field trip consists of stops in four locations that provide insight into the San Andreas fault along the San Francisco peninsula. The first two stops provide an overview and close-up look at the fault where no urbanization has occurred. The last two stops are examples of areas where urbanization...
Macroinvertebrate abundance, water chemistry, and wetland characteristics affect use of wetlands by avian species in Maine
J. R. Longcore, D.G. McAuley, G.W. Pendleton, C. R. Bennatti, T.M. Mingo, K. L. Stromborg
Alan Hanson, Joseph Kerekes, Julie Paquet, editor(s)
2006, Conference Paper, Limnology and Waterbirds 2003. The 4th Conference of the Aquatic Birds Working Group of the Societas Internationalis Limnologiae (SIL)
Our objective was to determine use by avian species (e.g., piscivores, marsh birds, waterfowl, selected passerines) of 29 wetlands in areas with low (<200 ueq 1-1) acid-neutralizing capacity (ANC) in southeastern Maine. We documented bird, pair, and brood use during 1982?1984 and in 1982 we sampled 10 wetlands with...
Groundwater modeling
Leonard F. Konikow, Thomas E. Reilly, Paul M. Barlow, Clifford I. Voss
J.W. Delleur, editor(s)
2006, Book chapter, The handbook of groundwater engineering
No abstract available....
Attention of arsenic in Bangladesh sediments: Implications for ground-water development
A. H. Welch, Kenneth G. Stollenwerk, George N. Breit, A. L. Foster, J. C. Yount, J.W. Whitney, M.N. Uddin, A.M. Alam
2006, Book chapter, Managing arsenic in the environment: From soil to human health
No abstract available....
Estimating Potential Effects of Hypothetical Oil Spills on Polar Bears
Steven C. Amstrup, George M. Durner, T. L. McDonald, W.R. Johnson
2006, Report
Much is known about the transport and fate of oil spilled into the sea and its toxicity to exposed wildlife. Previously, however, there has been no way to quantify the probability that wildlife dispersed over the seascape would be exposed to spilled oil. Polar bears, the apical predator of the...
Level 1 Baseline Water Qaulity Report for the Klmath Network: Lava Beds National Monument, Lassen Volcanic National Park and Oregon Caves National Monument - 2005
C.R. Currens, Mary Ann Madej, H. Ambrose
2006, Report
No abstract available at this time...
Variability and regulation of denitrification in an Upper Mississippi River backwater
E.A. Strauss, W. B. Richardson, J.C. Cavanaugh, L.A. Bartsch, Rebecca M. Kreiling, A.J. Standorf
2006, Journal of the North American Benthological Society (25) 596-606
Sediments in the backwaters of the Upper Mississippi River (UMR) are highly organic and provide an optimal environment for N removal. We monitored an 8.6-ha UMR backwater site near La Crosse, Wisconsin, for nearly 3 y to assess temporal variability, seasonal trends, and the factors regulating denitrification. We measured rates...
Extirpation of freshwater mussels (Bivalvia: Unionidae) following the invasion of dreissenid mussels in an interconnecting river of the Laurentian Great Lakes
Don W. Schloesser, Janice L. Metcalfe-Smith, William P. Kovalak, Gary D. Longton, Rick D. Smithee
2006, American Midland Naturalist (155) 307-320
Previous (1992–1994) surveys for native freshwater mussels (Unionidae) along main channels of the Detroit River showed that unionids had been extirpated from all but four sites in the upper reaches of the river due to impacts of dreissenid mussels (Dreissena polymorpha and D. bugensis). These four sites were surveyed again...
