New method to integrate remotely sensed hydrothermal alteration mapping into quantitative mineral resource assessments
John C. Mars, Jane M. Hammarstrom, Gilpin R. Robinson Jr., Stephen Ludington, Lukas Zurcher, Helen W. Folger, Mark E. Gettings, Federico Solano, Thomas Kress
2017, Conference Paper
Hydrothermal alteration data mapped using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were compiled into hydrothermal alteration polygons for use in an assessment of porphyry copper mineral resource potential in the southwestern United States. Hydrothermal alteration polygons along with geochemistry, gravity and magnetic, lithologic,...
3D Pressure‐limited approach to model and estimate CO2 injection and storage capacity: saline Mount Simon Formation
Hossein Jahediesfanjani, Peter D. Warwick, Steven T. Anderson
2017, Greenhouse Gases: Science and Technology (7) 1080-1096
To estimate the carbon dioxide (CO2) injection and storage capacity of saline formations, we used Tough2‐ECO2N simulation software to develop a pressure‐limited (dynamic) simulation approach based on applying three‐dimensional (3D) numerical simulation only on the effective injection area (Aeff) surrounding each injection well. A statistical analysis was performed to account...
Single-beam bathymetry data collected in 2015 from Grand Bay, Alabama-Mississippi
Nancy T. DeWitt, Chelsea A. Stalk, Christopher G. Smith, Stanley D. Locker, Jake J. Fredericks, Terrence A. McCloskey, Cathryn J. Wheaton
2017, Data Series 1070
As part of the Sea-level and Storm Impacts on Estuarine Environments and Shorelines (SSIEES) project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a single-beam bathymetry survey within the estuarine, open-bay, and tidal creek environments of Grand Bay, Alabama-Mississippi, from May to June...
Geophysical characterization of seismic station sites in the United States – The importance of a flexible, multi-method approach
Antony Martin, Alan Yong, William J. Stephenson, J. Boatwright, John Diehl
2017, Conference Paper
Noninvasive geophysical site characterization methods were used in two recent projects to obtain shear-wave velocity (VS) profiles to a minimum depth of 30 m and the time-averaged VS of the upper 30 meters (VS30) at seismic station sites. These projects include the 2009 American Recovery and Reinvestment Act (ARRA) funded...
Connecting the Soda–Avawatz and Bristol–Granite Mountains faults with gravity andaeromagnetic data, Mojave Desert, California
Victoria E. Langenheim, David M. Miller
2017, Conference Paper, ECSZ does it: Revisiting the Eastern California Shear Zone 2017 Desert Symposium Field Guide and Proceedings
The Soda–Avawatz and Bristol–Granite Mountains faults are considered by some to form the northeastern margin of the eastern California shear zone yet their connectivity and extents are obscured by surficial deposits and the estimates of total right-lateral offset from geologic data range from 0 to as much as 24 km....
Canyons microbiology studies
Christina A. Kellogg, Stephanie N. Lawler
2017, OCS Study BOEM 2017-060-12
Off the eastern coast of the United States, several deep canyons cut through the continental shelf, acting like funnels to move sediment from the shelf out to the deep seafloor. Exposed rock outcrops and ledges along the walls of these canyons provide important habitat for deepsea corals and sponges. Although...
Water-resources and land-surface deformation evaluation studies at Fort Irwin National Training Center, Mojave Desert, California
Jill N. Densmore, Justine E. Dishart, David M. Miller, David C. Buesch, Lyndsay B. Ball, Paul A. Bedrosian, Linda R. Woolfenden, Geoffrey Cromwell, Matthew K. Burgess, Joseph Nawikas, David O’Leary, Adam Kjos, Michelle Sneed, Justin T. Brandt
2017, Conference Paper, 2017 Desert Symposium Field Guide and Proceedings - ECSZ does it: Revisiting the eastern California Shear Zone
The U.S. Army Fort Irwin National Training Center (NTC), in the Mojave Desert, obtains all of its potable water supply from three groundwater basins (Irwin, Langford, and Bicycle) within the NTC boundaries (fig. 1; California Department of Water Resources, 2003). Because of increasing water demands at the NTC, the U.S....
Detrital zircon geochronology of quartzose metasedimentary rocks from parautochthonous North America, east-central Alaska
Cynthia Dusel-Bacon, Christopher S. Holm-Denoma, James V. Jones III, John N. Aleinikoff, James K. Mortensen
2017, Lithosphere (9) 927-952
We report eight new U-Pb detrital zircon ages for quartzose metasedimentary rocks from four lithotectonic units of parautochthonous North America in east-central Alaska: the Healy schist, Keevy Peak Formation, and Sheep Creek Member of the Totatlanika Schist in the northern Alaska Range, and the Butte assemblage in the northwestern Yukon-Tanana...
Interactive effects of water temperature and salinity on growth and mortality of eastern oysters, Crassostrea virginica: A meta-analysis using 40 years of monitoring data
Michael R. Lowe, Troy Sehlinger, Thomas M. Soniat, Megan K. LaPeyre
2017, Journal of Shellfish Research (36) 683-697
Despite nearly a century of exploitation and scientific study, predicting growth and mortality rates of the eastern oyster (Crassostrea virginica) as a means to inform local harvest and management activities remains difficult. Ensuring that models reflect local population responses to varying salinity and temperature combinations requires locally appropriate models. Using...
Case study - Dynamic pressure-limited capacity and costs of CO2 storage in the Mount Simon sandstone
Steven T. Anderson, Hossein Jahediesfanjani
2017, Conference Paper, 35th USAEE/IAEE North American Conference
Widespread deployment of carbon capture and storage (CCS) is likely necessary to be able to satisfy baseload electricity demand, to maintain diversity in the energy mix, and to achieve climate and other objectives at the lowest cost. If all of the carbon dioxide (CO2) emissions from stationary sources (such as...
Groundwater model of the Great Basin carbonate and alluvial aquifer system version 3.0: Incorporating revisions in southwestern Utah and east central Nevada
Lynette E. Brooks
2017, Scientific Investigations Report 2017-5072
The groundwater model described in this report is a new version of previously published steady-state numerical groundwater flow models of the Great Basin carbonate and alluvial aquifer system, and was developed in conjunction with U.S. Geological Survey studies in Parowan, Pine, and Wah Wah Valleys, Utah....
Cobalt—Styles of deposits and the search for primary deposits
Murray W. Hitzman, Arthur A. Bookstrom, John F. Slack, Michael L. Zientek
2017, Open-File Report 2017-1155
Cobalt (Co) is a potentially critical mineral. The vast majority of cobalt is a byproduct of copper and (or) nickel production. Cobalt is increasingly used in magnets and rechargeable batteries. More than 50 percent of primary cobalt production is from the Central African Copperbelt. The Central African Copperbelt is the...
Groundwater flux and nutrient loading in the northeast section of Bear Lake, Muskegon County, Michigan, 2015
Alexander R. Totten, Jessica A. Maurer, Joseph W. Duris
2017, Scientific Investigations Report 2017-5092
Bear Lake in North Muskegon, Michigan, is listed as part of the Muskegon Lake area of concern as designated by the U.S. Environmental Protection Agency. This area of concern was designated as a result of eutrophication and beneficial use impairments. On the northeast end of Bear Lake, two man-made retention...
Combining remote sensing and water-balance evapotranspiration estimates for the conterminous United States
Meredith Reitz, Gabriel Senay, Ward E. Sanford
2017, Remote Sensing (9)
Evapotranspiration (ET) is a key component of the hydrologic cycle, accounting for ~70% of precipitation in the conterminous U.S. (CONUS), but it has been a challenge to predict accurately across different spatio-temporal scales. The increasing availability of remotely sensed data has led to significant advances in the frequency and spatial...
The hyper-enrichment of V and Zn in black shales of the Late Devonian-Early Mississippian Bakken Formation (USA)
Clint Scott, John F. Slack, Karen Duttweiler Kelley
2017, Chemical Geology (452) 24-33
Black shales of the Late Devonian to Early Mississippian Bakken Formation are characterized by high concentrations of organic carbon and the hyper-enrichment (> 500 to 1000s of mg/kg) of V and Zn. Deposition of black shales resulted from shallow seafloor depths that promoted rapid development of euxinic conditions. Vanadium hyper-enrichments, which...
Bacterial sulfur disproportionation constrains timing of neoproterozoic oxygenation
Marcus Kunzmann, Thi Hao Bui, Peter W. Crockford, Galen P. Halverson, Clint Scott, Timothy W. Lyons, Boswell A. Wing
2017, Geology (45) 207-210
Various geochemical records suggest that atmospheric O2 increased in the Ediacaran (635–541 Ma), broadly coincident with the emergence and diversification of large animals and increasing marine ecosystem complexity. Furthermore, geochemical proxies indicate that seawater sulfate levels rose at this time too, which has been hypothesized to reflect increased sulfide oxidation in...
Solid-phase arsenic speciation in aquifer sediments: A micro-X-ray absorption spectroscopy approach for quantifying trace-level speciation
Sarah L. Nicholas, Melinda L. Erickson, Laurel G. Woodruff, Alan R. Knaeble, Matthew A. Marcus, Joshua K. Lynch, Brandy M. Toner
2017, Geochimica et Cosmochimica Acta (211) 228-255
e of this research is to identify the solid-phase sources and geochemical mechanisms of release of As in aquifers of the Des Moines Lobe glacial advance. The overarching concept is that conditions present at the aquifer-aquitard interfaces promote a suite of geochemical reactions leading to mineral alteration and release of...
A swath across the great divide: Kelp forests across the Samalga Pass biogeographic break
Brenda H. Konar, Matthew S. Edwards, Aaron Bland, Jacob Metzger, Alexandra Ravelo, Sarah Traiger, Ben P. Weitzman
2017, Continental Shelf Research (143) 78-88
Biogeographic breaks are often described as locations where a large number of species reach their geographic range limits. Samalga Pass, in the eastern Aleutian Archipelago, is a known biogeographic break for the spatial distribution of several species of offshore-pelagic communities, including numerous species of cold-water corals, zooplankton, fish, marine mammals,...
Exploration of diffuse and discrete sources of acid mine drainage to a headwater mountain stream in Colorado, USA
Allison Johnston, Robert L. Runkel, Alexis Navarre-Sitchler, Kamini Singha
2017, Mine Water and the Environment (36) 463-478
We investigated the impact of acid mine drainage (AMD) contamination from the Minnesota Mine, an inactive gold and silver mine, on Lion Creek, a headwater mountain stream near Empire, Colorado. The objective was to map the sources of AMD contamination, including discrete sources visible at the surface and diffuse inputs...
Regionalizing indicators for marine ecosystems: Bering Sea–Aleutian Island seabirds, climate, and competitors
William J. Sydeman, Sarah Ann Thompson, John F. Piatt, Marisol García-Reyes, Stephani Zador, Jeffrey C. Williams, Marc Romano, Heather Renner
2017, Ecological Indicators (78) 458-469
Seabirds are thought to be reliable, real-time indicators of forage fish availability and the climatic and biotic factors affecting pelagic food webs in marine ecosystems. In this study, we tested the hypothesis that temporal trends and interannual variability in seabird indicators reflect simultaneously occurring bottom-up (climatic) and competitor (pink salmon) forcing of food...
Integrated wetland management for waterfowl and shorebirds at Mattamuskeet National Wildlife Refuge, North Carolina
Brian G. Tavernia, John D. Stanton, James E. Lyons
2017, Open-File Report 2017-1052
Mattamuskeet National Wildlife Refuge (MNWR) offers a mix of open water, marsh, forest, and cropland habitats on 20,307 hectares in coastal North Carolina. In 1934, Federal legislation (Executive Order 6924) established MNWR to benefit wintering waterfowl and other migratory bird species. On an annual basis, the refuge staff decide how...
Intraspecific evolutionary relationships among peregrine falcons in western North American high latitudes
Sandra L. Talbot, George K. Sage, Sarah A. Sonsthagen, Megan C. Gravley, Ted Swem, Jeffrey C. Williams, Jonathan L. Longmire, Skip Ambrose, Melanie J. Flamme, Stephen B. Lewis, Laura M. Phillips, Clifford Anderson, Clayton M White
2017, PLoS ONE (12) 1-25
Subspecies relationships within the peregrine falcon (Falco peregrinus) have been long debated because of the polytypic nature of melanin-based plumage characteristics used in subspecies designations and potential differentiation of local subpopulations due to philopatry. In North America, understanding the evolutionary relationships among subspecies may have been further complicated by the...
Persistent shoreline shape induced from offshore geologic framework: Effects of shoreface connected ridges
Ilgar Safak, Jeffrey H. List, John C. Warner, William C. Schwab
2017, Journal of Geophysical Research C: Oceans (122) 8721-8738
Mechanisms relating offshore geologic framework to shoreline evolution are determined through geologic investigations, oceanographic deployments, and numerical modeling. Analysis of shoreline positions from the past 50 years along Fire Island, New York, a 50 km long barrier island, demonstrates a persistent undulating shape along the western half of the island....
Suitability of river delta sediment as proppant, Missouri and Niobrara Rivers, Nebraska and South Dakota, 2015
Ronald B. Zelt, Christopher M. Hobza, Bethany L. Burton, Nathaniel J. Schaepe, Nadine M. Piatak
2017, Scientific Investigations Report 2017-5105
Sediment management is a challenge faced by reservoir managers who have several potential options, including dredging, for mitigation of storage capacity lost to sedimentation. As sediment is removed from reservoir storage, potential use of the sediment for socioeconomic or ecological benefit could potentially defray some costs of its removal. Rivers...
Design tradeoffs in long-term research for stream salamanders
Adrianne B. Brand, Evan H. Campbell Grant
2017, Journal of Wildlife Management (81) 1430-1438
Long-term research programs can benefit from early and periodic evaluation of their ability to meet stated objectives. In particular, consideration of the spatial allocation of effort is key. We sampled 4 species of stream salamanders intensively for 2 years (2010–2011) in the Chesapeake and Ohio Canal National Historical Park, Maryland,...
