Final report on the Seventh International Comparison of Absolute Gravimeters (ICAG 2005)
Z. Jiang, O. Francis, L. Vitushkin, V. Palinkas, A. Germak, M. Becker, G. D’Agostino, M. Amalvict, R. Bayer, M. Bilker-Koivula, S. Desogus, J. Faller, R. Falk, J. Hinderer, C. Gagnon, T. Jakob, E. Kalish, J. Kostelecky, C. Lee, J. Liard, Y. Lokshyn, B. Luck, J. Makinen, S. Mizushima, Moigne N. Le, C. Origlia, E.R. Pujol, P. Richard, L. Robertsson, D. Ruess, D. Schmerge, Y. Stus, S. Svitlov, S. Thies, C. Ullrich, M. Van Camp, A. Vitushkin, W. Ji, H. Wilmes
2011, Metrologia (48) 246-260
The Bureau International des Poids et Mesures (BIPM), Sevres, France, hosted the 7th International Comparison of Absolute Gravimeters (ICAG) and the associated Relative Gravity Campaign (RGC) from August to September 2005.;ICAG 2005 was prepared and performed as a metrological pilot study, which aimed:;(1) To determine the gravity comparison reference values;;(2)...
Distribution, population status and trends of Kittlitz's murrelet Brachyramphus brevirostris in Lower Cook Inlet and Kachemak Bay, Alaska
Kathy J. Kuletz, Suzann G. Speckman, John F. Piatt, E.A. Labunski
2011, Marine Ornithology: Journal of Seabird Research and Conservation (39) 85-95
Lower Cook Inlet (LCI) in south-central Alaska is unusual among the breeding areas of Kittlitz's Murrelet Brachyramphus brevirostris because of human impacts on the marine and terrestrial environments and because of the lack of tidewater glaciers. In LCI the Kittlitz's Murrelet co-exists with the more abundant Marbled Murrelet, which complicates...
Using luminescence dating of coarse matrix material to estimate the slip rate of the Astaneh fault, Iran
M. Rizza, Shannon A. Mahan, J.-F. Ritz, H. Nazari, J. Hollingsworth, R. Salamati
2011, Quaternary Geochronology (6) 390-406
In this paper, we present optically and infrared stimulated luminescence (OSL and IRSL) ages for four samples from alluvial fan surfaces in the Astaneh Valley. This valley is located in the north-east part of the Alborz range in Iran. Our morphologic interpretations recognize at least three generations of fans in the study area,...
Active channel for Fanno Creek, Oregon
Steven Sobieszczyk
2011, Report
Fanno Creek is a tributary to the Tualatin River and flows though parts of the southwest Portland metropolitan area. The stream is heavily influenced by urban runoff and shows characteristic flashy streamflow and poor water quality commonly associated with urban streams. This data set represents the active, wetted channel as...
Arsenic species in weathering mine tailings and biogenic solids at the Lava Cap Mine Superfund Site, Nevada City, CA
Andrea L. Foster, Roger P. Ashley, James J. Rytuba
2011, Geochemical Transactions (12)
Background A realistic estimation of the health risk of human exposure to solid-phase arsenic (As) derived from historic mining operations is a major challenge to redevelopment of California's famed "Mother Lode" region. Arsenic, a known carcinogen, occurs in multiple solid forms that vary in bioaccessibility. X-ray absorption fine-structure spectroscopy (XAFS) was...
Asbestos
Robert Virta
2011, Book chapter, Kirk-Othmer Encyclopedia of Chemical Technology
The term asbestos is a generic designation referring usually to six types of naturally occurring mineral fibers that are or have been commercially exploited. These fibers belong to two mineral groups: serpentines and amphiboles. The serpentine group is represented by a single asbestiform variety-chrysotile. There also are five commercial asbestiform...
Change of impervious surface area between 2001 and 2006 in the conterminous United States
George Z. Xian, Collin G. Homer, Jon Dewitz, Joyce Fry, N. Hossain, J. Wickham
2011, Photogrammetric Engineering and Remote Sensing (77) 758-762
No abstract available....
Rainfall infiltration-induced landslides
Brian D. Collins, Dobroslav Znidarcic
2011, Geostrata
Unfavorable groundwater conditions are often the determining factor in triggering landslides. Whereas regional hydrogeology typically determines overall groundwater conditions, surficial rainfall infiltration into slopes also drives potential instability....
Chapter 3: Changes to the Wyoming Basins landscape from oil and natural gas development
Sean P. Finn, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Oil and natural gas have been produced in Wyoming since the late 1800s although the rate of extraction has increased substantially in the last two decades. Well pads, roads, and infrastructure built to support resource development alter native vegetation configuration; however, the rate and effect of land cover change resulting...
Mechanical analysis of fault slip data: Implications for paleostress analysis
J. Ole Kaven, F. Maerten, D. D. Pollard
2011, Journal of Structural Geology (33) 78-91
Stress inversions are a useful and popular tool for structural geologist and seismologist alike. These methods were first introduced by Wallace (1951) and Bott (1959) and subsequent studies continue to be based on their assumptions: the remote stress tensor is spatially uniform for the rock mass containing the faults and temporally constant over the history of...
Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States
B. G. Katz, S. M. Eberts, L. J. Kauffman
2011, Journal of Hydrology (397) 151-166
A detailed review was made of chemical indicators used to identify impacts from septic tanks on groundwater quality. Potential impacts from septic tank leachate on groundwater quality were assessed using the mass ratio of chloride–bromide (Cl/Br), concentrations of selected chemical constituents, and ancillary information (land use, census data, well...
Response to King and Baker: Limitations on threshold detection and characterization of community thresholds
Thomas F. Cuffney, Song S. Qian, Robin A. Brightbill, Jason T. May, Ian R. Waite
2011, Ecological Applications (21) 2840-2845
No abstract available....
Water quality and trophic status of Fort Cobb Reservoir, southwestern Oklahoma, 2016: Chapter 8 in Assessment of conservation practices in the Fort Cobb Reservoir watershed, southwestern Oklahoma
James F. Fairchild, Ann L. Allert, Kathy R. Echols
2011, Scientific Investigations Report 2010-5257-8
Eutrophication of reservoirs frequently occurs because of excessive nutrient inputs caused by anthropogenic activities, including row-crop agriculture. The trophic status of Fort Cobb Reservoir, Oklahoma, was assessed in April, July, and September 2006. The Fort Cobb Reservoir was highly eutrophic, with the greatest concentrations of nutrients and chlorophyll-a being measured...
Paleozoic stratigraphy and kinematics of the Roberts Mountains allochthon in the Independence Mountains, northern Nevada
Christopher S. Holm-Denoma, Albert H. Hofstra, Stephen A. Leslie, Paula J. Noble
Roger Steininger, Bill Pennell, editor(s)
2011, Conference Paper, Great Basin evolution and metallogeny: 2010 symposium proceedings
New biostratigraphic, stratigraphic, and structural data from deformed lower Paleozoic sedimentary units of the Roberts Mountains allochthon (RMA), Independence Mountains, Nevada, have enabled the identification of stratigraphic units within the allochthon that range in age from Late Cambrian through Late Devonian. The McAfee thrust fault emplaced a relatively thick (>200...
'Forensic' geochemical approaches to constrain the source of Au-Ag in low-sulfidation epithermal ores
James A. Saunders, G. D. Kamenov, Albert H. Hofstra, D. L. Unger, R. A. Creaser, F. Barra
Roger Steininger, Bill Pennell, editor(s)
2011, Conference Paper, Great Basin evolution and metallogeny: 2010 symposium proceedings
In order to better constrain genetic processes involved in forming mineral deposits (and ultimately exploration models), it helps to know from where the metals of interest are derived. How the metals arrived at their point of deposition, and why they were deposited there, are separate issues. We are using three...
Source identification of Florida Bay's methylmercury problem: Mainland runoff versus atmospheric deposition and in situ production
Darren G. Rumbold, David W. Evans, Sharon Niemczyk, Larry E. Fink, Krysten A. Laine, Nicole Howard, David P. Krabbenhoft, Mark Zucker
2011, Estuaries and Coasts (34) 494-513
The first advisory to limit consumption of Florida Bay fish due to mercury was issued in 1995. Studies done by others in the late 1990s found elevated water column concentrations of both total Hg (THg) and methylmercury (MeHg) in creeks discharging from the Everglades, which had its own recognized mercury...
Habits and Habitats of Fishes in the Upper Mississippi River
R. Norwick, J. Janvrin, S. Zigler, R. Kratt
2011, Report
The Upper Mississippi River consists of 26 navigation pools that provide abundant habitat for a host of natural resources, such as fish, migratory waterfowl, non-game birds, deer, beaver, muskrats, snakes, reptiles, frogs, toads, salamanders, and many others. Of all the many different types of animals that depend on the river,...
Flooding and Flood Management
K.N. Brooks, J. D. Fallon, D. L. Lorenz, J. R. Stark, Jason Menard
K.W. Easter, Jim Perry, editor(s)
2011, Book chapter, Water policy in Minnesota--Issues, incentives, and action
Floods result in great human disasters globally and nationally, causing an average of $4 billion of damages each year in the United States. Minnesota has its share of floods and flood damages, and the state has awarded nearly $278 million to local units of government for flood mitigation projects through...
Laboratory simulated transport of microcystin-LR and cylindrospermopsin in groundwater under the influence of stormwater ponds: implications for harvesting of infiltrated stormwater
Andrew M. O’Reilly, Martin P. Wanielista, Keith A. Loftin, Ni-Bin Chang
Mario Schirmer, Eduard Hoehn, Tobias Vogt, editor(s)
2011, Conference Paper, GQ10: Groundwater quality management in a rapidly changing world
Water shortages in the southeastern United States have led to a need for more intensive management and usage of stormwater for beneficial uses such as irrigation. Harvesting of infiltrated stormwater from horizontal wells in sandy aquifer sediments beneath stormwater ponds has emerged as an alternative in need of evaluation. Cyanobacteria...
Effect of land cover change on runoff curve number estimation in Iowa, 1832-2001
Loren L. Wehmeyer, Frank H. Weirich, Thomas F. Cuffney
2011, Ecohydrology (4) 315-321
Within the first few decades of European-descended settlers arriving in Iowa, much of the land cover across the state was transformed from prairie and forest to farmland, patches of forest, and urbanized areas. Land cover change over the subsequent 126 years was minor in comparison. Between 1832 and 1859, the...
A Tool for Prioritizing Management Units at Morris Wetland Management District
Jason J. Rohweder, Sara Vacek, Wayne E. Thogmartin
2011, Report
Extreme volcanism on Io: Latest insights at the end of Galileo era
Jeffrey S. Kargel, Robert R. Carlson, Ashley G. Davies, Bruce Fegley Jr., Alan R. Gillespie, Ronald Greeley, Robert G. Howells, Kandis Lea Jessup, Lucas Kamp, Laszlo P. Keszthelyi, Rosaly Lopes, Timothy MacIntyre, Franck Marchis, Alfred McEwen, Moses P. Milazzo, Jason Perry, Jani Radebaugh, Laura Schaefer, Nicholas Schmerr, William Smythe, John M. Spencer, David A. Williams, Ju Zhang, Mikhail Zolotov
2011, Eos, Transactions, American Geophysical Union (84)
Galileo has now completed 7 years exploring Jupiter. The spacecraft obtained breathtaking views of the four major satellites, and studied Jupiter's clouds and atmospheric composition, rings, small satellites, and magnetic field. It had five successful close flybys and many distant observations of Io. Scientists already knew from Voyager and Earth‐based...
Interdisciplinary environmental project probes Chesapeake Bay down to the core
Thomas M. Cronin, S. Colman, D. Willard, R. Kerhin, C. Holmes, A. Karlsen, S. Ishman, J. Bratton
2011, Eos Science News (80) 237-241
Interrelated environmental concerns about Chesapeake Bay are being addressed in an interdisciplinary project using paleoecological and geochemical records from sediment cores to investigate Holocene climate and human encroachment. The research is looking at interannual through millennial-scale variability of bay salinity, sediment accumulation, and dissolved oxygen, temperature, and faunal and floral...
Proposed standard weight (W(s)) equations for interior cutthroat trout
C.G. Kruse, W.A. Hubert
2011, North American Journal of Fisheries Management (17) 784-790
We developed standard weight (W(s); length-specific standard weight for the species) equations for inland cutthroat trout Oncorhynchus clarki using the regression-line-percentile technique. Length and weight data from samples of 117 cutthroat trout populations (48 lentic and 69 lotic) over the interior range of the species were used. Separate W(s) equations...
Uranium-Vanadium deposits of the Slick Rock District, Colorado
Daniel R. Shawe
2011, Professional Paper 576-F
