Changes in the C storage in Las Tablas de Daimiel National Park (PNTD) in the last 1000 years [Cambios en el almacenamiento de C en el Parque Nacional de Las Tablas de Daimiel (PNTD) en los últimos 1000 años]
F. Dominguez-Castro, J.I. Santisteban, R. Mediavilla, Walter E. Dean, Enrique Lopez-Pamo, Maria Blanca Ruiz-Zapata, Maria Jose Gil-Garcia
2006, Boletin Geologico y Minero (117) 537-544
Las Tablas de Daimiel National Park has suffered too many modifications throughout its history, natural as well as anthropic, which have affected the carbon storage in different ways. The study of those variations has been carried out by the analysis of sedimentary record and historical data. The sedimentary record has...
Drainage areas for selected stream-sampling stations, Missouri River Basin
2006, Data Series NE-3071
As part of the U.S. Geological Survey's (USGS) National Water-Quality Assessment Program (NAWQA), an investigation of the Missouri River Basin is being conducted to document trends in surface-water quality, specifically for trends in nutrients and suspended sediment. Surface-water samples were collected from streams at specific sampling stations. Water-quality...
The toxicological geochemistry of Earth materials: An overview of processes and the interdisciplinary methods used to understand them
Geoffrey S. Plumlee, Suzette A. Morman, Thomas L. Ziegler
2006, Reviews in Mineralogy and Geochemistry (64) 5-57
A broad spectrum of earth materials have been linked to, blamed for, and/or debated as sources for disease. In some cases, the links are clear. For example, excessive exposures to mineral dusts have long been recognized for their role in diseases such as: asbestosis, mesothelioma, and lung cancers (asbestos); silicosis...
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...
A continuous 250,000 yr record of oxygen and carbon isotopes in ostracode and bulk-sediment carbonate from Bear Lake, Utah-Idaho
Jordon Bright, Darrell Kaufman, Richard Forester, Walter E. Dean
2006, Quaternary Science Reviews (25) 2258-2270
Oxygen and carbon isotopes from a continuous, 120-m-long, carbonate-rich core from Bear Lake, Utah-Idaho, document dramatic fluctuations in the hydrologic budget of the lake over the last 250,000 yr. Isotopic analyses of bulk sediment samples capture millennial-scale variability. Ostracode calcite was analyzed from 78...
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...
Introduction to ‘Antarctic climate evolution: View from the margin’
Peter J. Barrett, F. Florindo, Alan K. Cooper
2006, Palaeogeography, Palaeoclimatology, Palaeoecology (231) 1-8
This special issue on “Antarctic Climate Evolution—view from the margin” presents results from modelling studies and reports on geoscience data aimed at improving our understanding of the behaviour of the Antarctic ice sheet and the climate of the region. This research field is of interest because of the sensitivity of...
King of the 40th parallel - Discovery in the American West
James G. Moore
2006, Book
This book recounts the life and achievements of Clarence King, widely recognized as one of America’s most gifted intellectuals of the nineteenth century, and a legendary figure in the American West. King’s genius, singular accomplishments, and near-death adventures unfold in a narrative centered on his personal relationship with his lifelong...
Paleozoic tectonic and metallogenetic evolution of pericratonic terranes in Yukon, northern British Columbia and eastern Alaska
JoAnne L. Nelson, Maurice Colpron, Stephen Piercey, Cynthia Dusel-Bacon, Donald Murphy, Charlie Roots
2006, Special Paper - Geological Association of Canada (45) 323-360
No abstract available....
Paleozoic magmatism and crustal recycling along the ancient Pacific margin of North America, northern Cordillera
Stephen Piercey, JoAnne L. Nelson, Maurice Colpron, Cynthia Dusel-Bacon, Renee-Luce Simard, Charlie Roots
2006, Special Paper - Geological Association of Canada (45) 281-322
No abstract available....
Lead isotopic constraints on the metallogeny of middle and late Paleozoic syngenetic base metal occurrences in the Yukon-Tanana and Slide Mountain/Seventymile Terranes and adjacent portions of the North American miogeocline
J.K. Mortensen, Cynthia Dusel-Bacon, J. Hunt, J. Gabites
2006, Special Paper - Geological Association of Canada (45) 261-280
No abstract available....
Paleozoic tectonic and metallogenic evolution of the pericratonic rocks of east-central Alaska and adjacent Yukon Territory
JoAnne L. Nelson, Maurice Colpron, Stephen Piercey, Cynthia Dusel-Bacon, Donald Murphy, Charlie Roots
2006, Special Paper - Geological Association of Canada (45) 25-74
No abstract available....
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...
A semi-empirical model for the estimation of maximum horizontal displacement due to liquefaction-induced lateral spreading
Allison T. Faris, Raymond B. Seed, Robert E. Kayen, Jiaer Wu
2006, Conference Paper, Proceedings of the 8th U.S. National Conference on Earthquake Engineering
During the 1906 San Francisco Earthquake, liquefaction-induced lateral spreading and resultant ground displacements damaged bridges, buried utilities, and lifelines, conventional structures, and other developed works. This paper presents an improved engineering tool for the prediction of maximum displacement due to liquefaction-induced lateral spreading. A semi-empirical approach is employed, combining mechanistic...
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...
Guided to gather: toy plane upgraded with telemetry
Vanessa Wiese, Dana Wiese
2006, GPS World (17) 32-38
GPS/INS and infrared optical sensors propel USGS's transformation of a remote-controlled one-quarter scale recreational aircraft into a low-cost unmanned aerial vehicle designed for environmental particulate collection....
Preliminary Utah oil shale database
John R. Dyni, J. R. Donnell, Vanden Berg, D.E. Tabet
2006, Open-File Report 2006-1295
No abstract available....
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,...
Sri Lanka field survey after the December 2004 Indian Ocean tsunami
James Goff, Philip L-F. Liu, Bretwood Higman, Robert Morton, Bruce E. Jaffe, Haindra Fernando, Patrick Lynett, Hermann Fritz, Costas Synolakis, Starin Fernando
2006, Earthquake Spectra (22) 155-172
An International Tsunami Survey Team (ITST) consisting of scientists from the United States, New Zealand, and Sri Lanka evaluated the impacts of the 26 December 2004 transoceanic tsunami in Sri Lanka two weeks after the event. Tsunami runup height, inundation distance, morphological changes, and sedimentary characteristics of deposits were recorded...
Sedimentary processes in modern and ancient oceanic arc settings: evidence from the Jurassic Talkeetna Formation of Alaska and the Mariana and Tonga Arcs, western Pacific
Amy E. Draut, Peter D. Clift
2006, Journal of Sedimentary Research (76) 493-514
Sediment deposited around oceanic volcanic ares potentially provides the most complete record of the tectonic and geochemical evolution of active margins. The use of such tectonic and geochemical records requires an accurate understanding of sedimentary dynamics in an arc setting: processes of deposition and reworking that affect the degree to...
Tsunami: wave of change
Eric L. Geist, Vasily V. Titov, Costas E. Synolakis
2006, Scientific American (294) 56-63
No abstract available....
