Inter-laboratory variation in the chemical analysis of acidic forest soil reference samples from eastern North America
Donald S. Ross, Scott W Bailiey, Russell D Briggs, Johanna Curry, Ivan J. Fernandez, Guinevere Fredriksen, Christine L. Goodale, Paul W. Hazlett, Paul R Heine, Chris E. Johnson, John T Larson, Gregory B. Lawrence, Randy K Kolka, Ouimet, D Pare, Daniel D. Richter, Charles D Shirmer, Richard A.F. Warby
2015, Ecosphere (6) 1-22
Long-term forest soil monitoring and research often requires a comparison of laboratory data generated at different times and in different laboratories. Quantifying the uncertainty associated with these analyses is necessary to assess temporal changes in soil properties. Forest soil chemical properties, and methods to measure these properties, often differ from...
What lies beneath: geophysical mapping of a concealed Precambrian intrusive complex along the Iowa–Minnesota border
Benjamin J. Drenth, Raymond R. Anderson, Klaus J. Schulz, Joshua M. Feinberg, Val W. Chandler, William F. Cannon
2015, Canadian Journal of Earth Sciences (52) 279-293
Large-amplitude gravity and magnetic highs over northeast Iowa are interpreted to reflect a buried intrusive complex composed of mafic–ultramafic rocks, the northeast Iowa intrusive complex (NEIIC), intruding Yavapai province (1.8–1.72 Ga) rocks. The age of the complex is unproven, although it has been considered to be Keweenawan (∼1.1 Ga). Because...
Modelling the enigmatic Late Pliocene Glacial Event - Marine Isotope Stage M2
Aisling M. Dolan, Alan M. Haywood, Stephen J. Hunter, Julia C. Tindall, Harry J. Dowsett, Daniel J. Hill, Steven J. Pickering
2015, Global and Planetary Change (128) 47-60
The Pliocene Epoch (5.2 to 2.58 Ma) has often been targeted to investigate the nature of warm climates. However, climate records for the Pliocene exhibit significant variability and show intervals that apparently experienced a cooler than modern climate. Marine Isotope Stage (MIS) M2 (~ 3.3 Ma) is a globally recognisable cooling event that...
Comparison of three preservation techniques for slowing dissolution of calcareous nannofossils in organic rich sediments
Ellen Seefelt, Jean Self-Trail, Arthur P. Schultz
2015, Micropaleontology (61) 149-164
In an attempt to halt or reduce dissolution of calcareous nannofossils in organic and/or pyrite-rich sediments, three different methods of short-term storage preservation were tested for efficacy: vacuum packing, argon gas replacement, and buffered water. Abundance counts of calcareous nannofossil assemblages over a six month period showed that none of...
Groundwater movement, recharge, and perchlorate occurrence in a faulted alluvial aquifer in California (USA)
John A. Izbicki, Nicholas F. Teague, Paul B. Hatzinger, John Karl Bohlke, Neil C. Sturchio
2015, Hydrogeology Journal (23) 467-491
Perchlorate from military, industrial, and legacy agricultural sources is present within an alluvial aquifer in the Rialto-Colton groundwater subbasin, 80 km east of Los Angeles, California (USA). The area is extensively faulted, with water-level differences exceeding 60 m across parts of the Rialto-Colton Fault separating the Rialto-Colton and Chino groundwater...
Ordovician of Germany Valley, West Virginia: 12th International Symposium on the Ordovician System mid-conference field trip
John T. Haynes, Keith E. Goggin, Randall C. Orndorff
2015, Stratigraphy (12) 252-288
No abstract available....
Population connectivity of endangered Ozark big-eared bats (Corynorhinus townsendii ingens)
Dana N. Lee, Richard C. Stark, William L. Puckette, Meredith J. Hamilton, David M. Leslie Jr., Ronald A. Van Den Bussche
2015, Journal of Mammalogy (96) 522-530
The endangered Ozark big-eared bat (Corynorhinus townsendii ingens) is restricted to eastern Oklahoma and western and north-central Arkansas, where populations may be susceptible to losses of genetic variation due to patchy distribution of colonies and potentially small effective population sizes. We used mitochondrial D-loop DNA sequences and 15 nuclear microsatellite...
Geologic map of the Montauk quadrangle, Dent, Texas, and Shannon Counties, Missouri
David J. Weary
2015, Scientific Investigations Map 3320
The Montauk 7.5-minute quadrangle is located in south-central Missouri within the Salem Plateau region of the Ozark Plateaus physiographic province. About 2,000 feet (ft) of flat-lying to gently dipping lower Paleozoic sedimentary rocks, mostly dolomite, chert, sandstone, and orthoquartzite, overlie Mesoproterozoic igneous basement rocks. Unconsolidated residuum, colluvium, terrace deposits, and...
Post-Nor'Ida coastal oblique aerial photographs collected from Ocean City, Maryland, to Hatteras, North Carolina, December 4, 2009
Karen L. M. Morgan, M. Dennis Krohn, Kristy K. Guy
2015, Data Series 930
The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. The remnants of Tropical Storm Ida intensified to become a nor'easter (herein referred to as Nor'Ida). On December 4, 2009, the USGS conducted...
Gully annealing by fluvially-sourced Aeolian sand: remote sensing investigations of connectivity along the Fluvial-Aeolian-hillslope continuum on the Colorado River
Joel B. Sankey, Amy E. East, Brian D. Collins, Joshua J. Caster
2015, Conference Paper, Proceedings of the Joint Federal Interagency Conference 2015
Processes contributing to development of ephemeral gully channels are of great importance to landscapes worldwide, and particularly in dryland regions where soil loss and land degradation from gully erosion pose long-term, land-management problems. Whereas gully formation has been relatively well studied, much less is known of the processes that anneal...
Characterization of streamflow, salinity, and selenium loading and land-use change in Montrose Arroyo, western Colorado, from 1992 to 2013
Rodney J. Richards, Jennifer L. Moore
2015, Scientific Investigations Report 2015-5039
Salinity and dissolved selenium are known water-quality impairments in the lower Gunnison River watershed of western Colorado. Salinity is a concern because of its adverse effects on agricultural land and equipment, and on municipal and industrial users. The Montrose Arroyo watershed in Montrose, Colorado, contains agricultural and residential areas as...
Sediment contributions from floodplains and legacy sediments to Piedmont streams of Baltimore County, Maryland
Mitchell Donovan, Andrew Miller, Matthew Baker, Allen C. Gellis
2015, Geomorphology (235) 88-105
Disparity between watershed erosion rates and downstream sediment delivery has remained an important theme in geomorphology for many decades, with the role of floodplains in sediment storage as a common focus. In the Piedmont Province of the eastern USA, upland deforestation and agricultural land use following European settlement led...
Delineation of fractures, foliation, and groundwater of the bedrock at a geothermal feasibility site on Roosevelt Island, New York County, New York
Frederick Stumm, Anthony Chu, Michael D. Como, Michael L. Noll, Peter K. Joesten
2015, Conference Paper
Advanced borehole-geophysical methods were used to investigate the hydrogeology of the crystalline bedrock in three boreholes on Roosevelt Island, New York County, New York. Cornell University was evaluating the feasibility of using geothermal energy for a future campus at the site. The borehole-logging techniques were used to delineate bedrock fractures,...
Response to "Comment on and Reinterpretation of Gabriel et al. (2014) "Fish Mercury and Surface Water Sulfate Relationships in the Everglades Protection Area""
Mark C. Gabriel, Don Axelrad, William H. Orem, Todd Z. Osborne
2015, Environmental Management (55) 1227-1231
The purpose of this forum is to respond to a rebuttal submitted by Julian et al., Environ Manag 55:1–5, 2015 where they outlined their overall disagreement with the data preparation, methods, and interpretation of results presented in Gabriel et al. (Environ Manag 53:583–593, 2014). Here, we provide background information on the...
New argon-argon (40Ar/39Ar) radiometric age dates from selected subsurface basalt flows at the Idaho National Laboratory, Idaho
Mary K. V. Hodges, Brent D. Turrin, Duane E. Champion, Carl C. Swisher III
2015, Scientific Investigations Report 2015-5028
In 2011, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collected samples for 12 new argon-argon radiometric ages from eastern Snake River Plain olivine tholeiite basalt flows in the subsurface at the Idaho National Laboratory. The core samples were collected from flows that had previously published...
Geologic framework for the national assessment of carbon dioxide storage resources: Permian and Palo Duro Basins and Bend Arch-Fort Worth Basin: Chapter K in Geologic framework for the national assessment of carbon dioxide storage resources
Matthew D. Merrill, Ernie R. Slucher, Tina L. Roberts-Ashby, Peter D. Warwick, Madalyn S. Blondes, P.A. Freeman, Steven M. Cahan, Christina A. DeVera, Celeste D. Lohr
Peter D. Warwick, M.D. Corum, editor(s)
2015, Open-File Report 2012-1024-K
The U.S. Geological Survey has completed an assessment of the potential geologic carbon dioxide storage resource in the onshore areas of the United States. To provide geological context and input data sources for the resources numbers, framework documents are being prepared for all areas that were investigated as part of...
Physical subdivision and description of the water-bearing sediments of the Santa Clara Valley, California
Carl M. Wentworth, Robert C. Jachens, Robert A. Williams, John C. Tinsley III, Randall T. Hanson
2015, Scientific Investigations Report 2015-5017
A thick Quaternary alluvial section fills a sedimentary basin beneath the Santa Clara Valley, California, located within the San Andreas Fault system at the south end of San Francisco Bay. This section consists of an upper sequence about 1,000 feet thick containing eight sedimentary cycles and a lower fine-grained unit...
Potential groundwater recharge for the State of Minnesota using the Soil-Water-Balance model, 1996-2010
Erik A. Smith, Stephen M. Westenbroek
2015, Scientific Investigations Report 2015-5038
Groundwater recharge is one of the most difficult components of a water budget to ascertain, yet is an important boundary condition necessary for the quantification of water resources. In Minnesota, improved estimates of recharge are necessary because approximately 75 percent of drinking water and 90 percent of agricultural irrigation water...
National assessment of geologic carbon dioxide storage resources: allocations of assessed areas to Federal lands
Marc L. Buursink, Steven M. Cahan, Peter D. Warwick
2015, Scientific Investigations Report 2015-5021
Following the geologic basin-scale assessment of technically accessible carbon dioxide storage resources in onshore areas and State waters of the United States, the U.S. Geological Survey estimated that an area of about 130 million acres (or about 200,000 square miles) of Federal lands overlies these storage resources. Consequently, about 18...
Conceptual models of the formation of acid-rock drainage at road cuts in Tennessee
Mike Bradley, Scott Worland, Tom Byl
2015, Conference Paper, Proceedings of the 2015 Tennessee Water Resources Symposium
Pyrite and other minerals containing sulfur and trace metals occur in several rock formations throughout Middle and East Tennessee. Pyrite (FeS2) weathers in the presence of oxygen and water to form iron hydroxides and sulfuric acid. The weathering and interaction of the acid on the rocks and other minerals at...
Multilevel groundwater monitoring of hydraulic head and temperature in the eastern Snake River Plain aquifer, Idaho National Laboratory, Idaho, 2011-13
Brian V. Twining, Jason C. Fisher
2015, Scientific Investigations Report 2015-5042
From 2011 to 2013, the U.S. Geological Survey’s Idaho National Laboratory (INL) Project Office, in cooperation with the U.S. Department of Energy, collected depth-discrete measurements of fluid pressure and temperature in 11 boreholes located in the eastern Snake River Plain aquifer. Each borehole was instrumented with a multilevel monitoring system...
Desert tortoise use of burned habitat in the Eastern Mojave desert
K. Kristina Drake, Todd C. Esque, Kenneth E. Nussear, Lesley DeFalco, Sara J. Scoles-Sciulla, Andrew T. Modlin, Philip A. Medica
2015, Journal of Wildlife Management (79) 618-629
Wildfires burned 24,254 ha of critical habitat designated for the recovery of the threatened Mojave desert tortoise (Gopherus agassizii) in southern Nevada during 2005. The proliferation of non-native annual grasses has increased wildfire frequency and extent in recent decades and continues to accelerate the conversion of tortoise habitat across the Mojave...
Climatology of extreme daily precipitation in Colorado and its diverse spatial and seasonal variability
Kelly M. Mahoney, F. Martin Ralph, Klaus Walter, Nolan Doesken, Michael D. Dettinger, Daniel Gottas, Timothy Coleman, Allen White
2015, Journal of Hydrometeorology (16) 781-792
The climatology of Colorado’s historical extreme precipitation events shows a remarkable degree of seasonal and regional variability. Analysis of the largest historical daily precipitation totals at COOP stations across Colorado by season indicates that the largest recorded daily precipitation totals have ranged from less than 60 mm day−1 in some areas...
Seismic source dynamics of gas-piston activity at Kı̄lauea Volcano, Hawai‘i
Bernard A. Chouet, Phillip B. Dawson
2015, Journal of Geophysical Research B: Solid Earth (120) 2525-2560
Since 2008, eruptive activity at the summit of Kı̄lauea Volcano, Hawai‘i has been confined to the new Overlook pit crater within the Halema‘uma‘u Crater. Among the broad range of magmatic processes observed in the new pit are recurring episodes of gas pistoning. The gas-piston activity is accompanied by seismic signals...
Changes in distribution of Canada geese nesting in Arkansas
David G. Krementz, M. Eliese Ronke
2015, Human-Wildlife Interactions (9) 101-109
The reintroduced Canada goose (Branta canadensis) population in Arkansas has grown in range and abundance in recent decades. We determined the geographic range of Arkansas resident Canada geese from 2004 to 2012 using volume contour maps from citizen science observations using eBird, a citizen science website, and hunter recovery locations...
