Conference Papers
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Analysis of the age and paleomagnetic orientation of the Broadwell Mesa Basalt, Bristol Mountains, CA Analysis of the age and paleomagnetic orientation of the Broadwell Mesa Basalt, Bristol Mountains, CA
To add to the regional paleomagnetic data documenting block rotation in eastern California, we determined the age and paleomagnetic rotation of the Broadwell Mesa basalt, a basalt in the Bristol Mountains, CA as part of an effort to constrain the timing and rotation of blocks adjacent to the fault. The east-striking sinistral Broadwell Mesa fault cuts and separates the basalt into two...
Authors
Geoffrey Phelps, John Hillhouse, Robert J. Fleck, David M. Miller, David C. Buesch, Andrew J. Cyr, Kevin M. Schmidt
Spectral properties of anhydrous carbonates and nitrates Spectral properties of anhydrous carbonates and nitrates
No abstract available.
Authors
J.L. Bishop, S.J. King, M.D. Lane, B. Lafuente, A. J. Brown, T. Hiroi, Gregg A. Swayze, J.-F. Lin
Using enteric pathogens to assess sources of fecal contamination in the Silurian Dolomite Aquifer: Preliminary results Using enteric pathogens to assess sources of fecal contamination in the Silurian Dolomite Aquifer: Preliminary results
The fractured Silurian dolomite aquifer is an important, but vulnerable, source of drinking water in northeast Wisconsin (Sherrill in Geology and ground water in Door County, Wisconsin, with emphasis on contamination potential in the Silurian dolomite, 1978; Bradbury and Muldoon in Hydrogeology and groundwater monitoring of fractured dolomite in the Upper Door Priority Watershed, Door...
Authors
Maureen A. Muldoon, Mark A. Borchardt, Susan K. Spencer, Randall J. Hunt, David W. Owens
New method to integrate remotely sensed hydrothermal alteration mapping into quantitative mineral resource assessments New method to integrate remotely sensed hydrothermal alteration mapping into quantitative mineral resource assessments
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, and deposit and...
Authors
John C. Mars, Jane M. Hammarstrom, Gilpin R. Robinson, Stephen Ludington, Lukas Zurcher, Helen W. Folger, Mark E. Gettings, Federico Solano, Thomas Kress
Effect of stocking and biotic and abiotic factors on Muskellunge recruitment in northern Wisconsin lakes Effect of stocking and biotic and abiotic factors on Muskellunge recruitment in northern Wisconsin lakes
The Muskellunge Esox masquinongy is an important recreational fish species in North America. Some populations of Muskellunge are in decline, despite a reduction in harvest by anglers due largely to a growing catch-and-release ethic. Our objectives were to determine if Muskellunge recruitment was influenced by stocking, biotic factors, and abiotic factors in northern Wisconsin lakes. To...
Authors
Todd S. Caspers, Michael J. Hansen, Steven W. Hewett
Iron isotope systematics of shale-derived soils as potentially influenced by small mineral particle loss Iron isotope systematics of shale-derived soils as potentially influenced by small mineral particle loss
Loss of small mineral particles from soil has been suggested as a process that can produce net isotopic fractionation in the remaining soil. We extracted water dispersible colloids (WDCs) from bulk soil collected at the Susquehanna/Shale Hills Critical Zone Observatory (SSHO) and measured their Fe isotopic composition for comparison to published data from the site. The goal was to...
Authors
Carleton R. Bern, Tiffany Yesavage, Michael J. Pribil
Geomechanical analysis of initial stage of gas production from interbedded hydrate-bearing sediment Geomechanical analysis of initial stage of gas production from interbedded hydrate-bearing sediment
Geomechanical stability of marine hydrate reservoirs during gas production by depressurization is the focus of this study. The reservoir considered here consists of thin hydrate rich sandy layers interbedded with mud layers. Because of the input parameter uncertainties involved, it is prudent from a geomechanical perspective to estimate the likely bounds of potential responses. A...
Authors
Jeen-Shang Lin, Shun Uchida, Evgeniy Myshakin, Yongkoo Seol, Jonny Rutqvist, Ray Boswell, William F. Waite, Junbong Jang, Timothy S. Collett
Geophysical characterization of seismic station sites in the United States – The importance of a flexible, multi-method approach Geophysical characterization of seismic station sites in the United States – The importance of a flexible, multi-method approach
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 U.S. Geological Survey site characterization project for 191 sites...
Authors
Antony Martin, Alan Yong, William J. Stephenson, J. Boatwright, John Diehl
Assessment of leech lake strain muskellunge stocking in Lake Wissota, Wisconsin Assessment of leech lake strain muskellunge stocking in Lake Wissota, Wisconsin
No abstract available.
Authors
Joseph Gerbyshak, Wesley Larson, Keith N. Turnquist
Case study - Dynamic pressure-limited capacity and costs of CO2 storage in the Mount Simon sandstone Case study - Dynamic pressure-limited capacity and costs of CO2 storage in the Mount Simon sandstone
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 fossil-fuel burning power plants, and other industrial plants) in the United...
Authors
Steven T. Anderson, Hossein Jahediesfanjani
Community tools for cartographic and photogrammetric processing of Mars Express HRSC images Community tools for cartographic and photogrammetric processing of Mars Express HRSC images
The High Resolution Stereo Camera (HRSC) on the Mars Express orbiter (Neukum et al. 2004) is a multi-line pushbroom scanner that can obtain stereo and color coverage of targets in a single overpass, with pixel scales as small as 10 m at periapsis. Since commencing operations in 2004 it has imaged ~ 77 % of Mars at 20 m/pixel or better. The instrument team uses the Video Image...
Authors
Randolph L. Kirk, Elpitha Howington-Kraus, Kenneth L. Edmundson, Bonnie L. Redding, Donna M. Galuszka, Trent M. Hare, K. Gwinner
Connecting the Soda–Avawatz and Bristol–Granite Mountains faults with gravity andaeromagnetic data, Mojave Desert, California Connecting the Soda–Avawatz and Bristol–Granite Mountains faults with gravity andaeromagnetic data, Mojave Desert, California
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. We use gravity and recently released detailed aeromagnetic data to map...
Authors
Victoria E. Langenheim, David M. Miller