Establishment of aerial seeding treatments in blackbrush and pinyon-juniper sites following the 2005 Southern Nevada Complex: Chapter 5
Robert C. Klinger, Matthew L. Brooks, Neil Frakes, John R. Matchett, Randy McKinley, Karen Prentice
2011, Report, Southern Nevada Complex emergency stabilization and rehabilitation final report
No abstract available....
Alteration of streamflow magnitudes and potential ecological consequences: A multiregional assessment
Daren M. Carlisle, David M. Wolock, Michael R. Meador
2011, Frontiers in Ecology and the Environment (9) 264-270
Human impacts on watershed hydrology are widespread in the US, but the prevalence and severity of stream-flow alteration and its potential ecological consequences have not been quantified on a national scale. We assessed streamflow alteration at 2888 streamflow monitoring sites throughout the conterminous US. The magnitudes of mean annual (1980–2007)...
Ground motion attenuation during M 7.1 Darfield and M 6.2 Christchurch, New Zealand, earthquakes and performance of global predictive models
Margaret Segou, Erol Kalkan
2011, Seismological Research Letters (82) 866-874
The M 7.1 Darfield earthquake occurred 40 km west of Christchurch (New Zealand) on 4 September 2010. Six months after, the city was struck again with an M 6.2 event on 22 February local time (21 February UTC). These events resulted in significant damage to infrastructure in the city...
Chapter 39 The Edwardsburg Formation and related rocks, Windermere Supergroup, central Idaho, USA
Karen Lund, Karl V. Evans, John N. Alienikoff
2011, Memoir of the Geological Society of America (36) 437-448
In central Idaho, Neoproterozoic stratified rocks are engulfed by the Late Cretaceous Idaho batholith and by Eocene volcanic and plutonic rocks of the Challis event. Studied sections in the Gospel Peaks and Big Creek areas of west-central Idaho are in roof pendants of the Idaho batholith. A drill core section...
Distributional changes and range predictions of downy brome (Bromus tectorum) in Rocky Mountain National Park
J.E. Bromberg, S. Kumar, C. S. Brown, T.J. Stohlgren
2011, Invasive Plant Science and Management (4) 173-182
Downy brome (Bromus tectorum L.), an invasive winter annual grass, may be increasing in extent and abundance at high elevations in the western United States. This would pose a great threat to high-elevation plant communities and resources. However, data to track this species in high-elevation environments are limited. To address...
Coal resources for part of the Wilcox group (Paleocene-Eocene), northeast Texas
Peter D. Warwick, Claire E. Aubourg, Steven M. Podwysocki, Adam C. Schultz
Peter D. Warwick, Alexander K. Karlsen, Matthew D. Merrill, Brett J. Valentine, editor(s)
2011, Book chapter, Geologic assessment of coal in the Gulf of Mexico coastal plain
The Wilcox Group of northeast Texas contains shallow (less than 500 ft) coal deposits that are mined for use in mine-mouth electric power generating plants. The coal deposits, which are lignite in apparent rank (Pierce et al., 2011), are separated from similar shallow coal deposits in the Sabine uplift area...
Front matter: Preface, acknowledgements, table of contents
Peter D. Warwick, Alexander K. Karlsen, Matthew D. Merrill, Brett J. Valentine, editor(s)
2011, AAPG Studies in Geology 62
This volume is the fifth in a series of reports by the U.S. Geological Survey (USGS) on the assessment of the quantity and quality of the nation’s coal deposits that potentially could be mined during the next few decades. For eight years (1995-2003), geologic, geochemical, and resource information was collected and compiled...
Monitoring soil geochemistry in the urban environment: A comparison of studies in 1972 and 2005 in Denver, Colorado
David B. Smith, Karl J. Ellefsen, Ronald G. Garrett, L. Graham Closs
2011, Book
No abstract available...
U.S. Geological Survey: A synopsis of Three-dimensional Modeling
Linda J. Jacobsen, Pierre D. Glynn, Geoff A. Phelps, Randall C. Orndorff, Gerald W. Bawden, V. J. S. Grauch
2011, Book chapter, Chapter 13 in <i>Synopsis of Current Three-dimensional Geological Mapping and Modeling in Geological Survey Organizations</i>
The U.S. Geological Survey (USGS) is a multidisciplinary agency that provides assessments of natural resources (geological, hydrological, biological), the disturbances that affect those resources, and the disturbances that affect the built environment, natural landscapes, and human society. Until now, USGS map products have been generated and distributed primarily as 2-D...
Barrier island response to late Holocene climate events, North Carolina, USA
D. J. Mallinson, C. W. Smith, S. Mahan, S.J. Culver, K. McDowell
2011, Quaternary Research (76) 46-57
The Outer Banks barrier islands of North Carolina, USA, contain a geologic record of inlet activity that extends from ca. 2200 cal yr BP to the present, and can be used as a proxy for storm activity. Optically stimulated luminescence (OSL) dating (26 samples) of inlet-fill and flood tide delta...
Measurement of net nitrogen and phosphorus mineralization in wetland soils using a modification of the resin-core technique
Gregory B. Noe
2011, Biogeochemistry (75) 760-770
A modification of the resin-core method was developed and tested for measuring in situ soil N and P net mineralization rates in wetland soils where temporal variation in bidirectional vertical water movement and saturation can complicate measurement. The modified design includes three mixed-bed ion-exchange resin bags located above and three...
Historical summer base flow and stormflow trends for New England rivers
Glenn A. Hodgkins, Robert W. Dudley
2011, Water Resources Research (47)
River base flow is important to aquatic ecosystems, particularly because of its influence on summer water temperatures. Summer (June through September) daily mean streamflows were separated into base flow and stormflow components by use of an automated method at 25 stations in the New England region of the United States...
Rising sea level may cause decline of fringing coral reefs
Michael E. Field, Andrea S. Ogston, Curt D. Storlazzi
2011, Eos, Transactions, American Geophysical Union (92) 273-274
Coral reefs are major marine ecosystems and critical resources for marine diversity and fisheries. These ecosystems are widely recognized to be at risk from a number of stressors, and added to those in the past several decades is climate change due to anthropogenically driven increases in atmospheric concentrations of greenhouse...
Estimation of mussel population response to hydrologic alteration in a southeastern U.S. stream
James T. Peterson, J.M. Wisniewski, C.P. Shea, Jackson C. Rhett
2011, Environmental Management (48) 109-122
The southeastern United States has experienced severe, recurrent drought, rapid human population growth, and increasing agricultural irrigation during recent decades, resulting in greater demand for the water resources. During the same time period, freshwater mussels (Unioniformes) in the region have experienced substantial population declines. Consequently, there is growing interest in...
Atacamite and paratacamite from the ultramafic-hosted Logatchev seafloor vent field (14°45′N, Mid-Atlantic Ridge)
Vesselin Dekov, Tanya Boycheva, Ulf Halenius, Sven Petersen, Kjell Billstrom, Jens Stummeyer, G. Kamenov, W. Shanks
2011, Chemical Geology (286) 169-184
Atacamite and paratacamite are ubiquitous minerals associated with Cu-rich massive sulfides at the Logatchev hydrothermal field (Mid-Atlantic Ridge). In this work we provide new details on the mineralogy and geochemistry of these basic cupric chlorides. Our data support the notion that atacamite and paratacamite formation at submarine vent fields is...
Effects of fringing reefs on tsunami inundation: American Samoa
G. Gelfenbaum, A. Apotsos, A.W. Stevens, B. Jaffe
2011, Earth-Science Reviews (107) 12-22
A numerical model of tsunami inundation, Delft3D, which has been validated for the 29 September 2009 tsunami in Tutuila, American Samoa, is used to better understand the impact of fringing coral reefs and embayments on tsunami wave heights, inundation distances, and velocities. The inundation model is used to explore the...
R is for rocksicle
W. H. Langer
2011, Aggregates Manager (16) 132-132
A Front Range perspective on managing and shipping aggregates....
And last comes XYZ
Bill Langer
2011, Aggregates Manager (16) 52-52
Catesian Coordinates can be used to specify the position of any point in three-dimensional space by measuring its distances from three mutually perpendicular planes....
Q is for quartz
W. H. Langer
2011, Aggregates Manager (16) 36-36
This versatile mineral has been used in everything from ceremonial rattles to sonar transducers to quartz watches....
Notes on the geology and meteorology of sites infected with white-nose syndrome before July 2010 in Southeastern United States
Christopher S. Swezey, Christopher P. Garrity
2011, NSS News (2011) 16-25
Since 2006, numerous bat colonies in North America have experienced unusually high incidences of mortality. In these colonies, bats are infected by a white fungus named Geomyces destructans, which has been observed on bat muzzles, noses, ears, and (or) wings. Although it is not exactly certain how and why these...
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1
J. W. Brakebill, S.E. Terziotti
2011, Report
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions correspond with the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program Major River Basin (MRB) study units 2, 3, 4, 5, and 7 (Preston...
Science as a fundamental framework for shaping policy discussions regarding the use of groundwater in the State of Michigan: A case study
A.D. Steinman, J.R. Nicholas, P.W. Seelbach, J.W. Allan, F. Ruswick
2011, Water Policy (13) 69-86
The availability and use of freshwater is a growing concern in the United States and around the globe. Despite apparently abundant water resources, several conflicts over water use have emerged in the Great Lakes region and the State of Michigan. These conflicts resulted in state legislation that both addresses water...
Formal and informal trail monitoring protocols and baseline conditions: Great Falls Park and Potomac Gorge. Final research report
Jeremy Wimpey, Jeffrey L. Marion
2011, Report
This report presents the results of research on the conditions of formal and informal (visitorcreated) trails conducted within the Great Falls Park (GFP) portion of George Washington Memorial Parkway (GWMP), Virginia, and the adjacent Maryland portions of the C&O Canal National Historical Park (CHOH). This research was prompted primarily by...
Wind River watershed restoration, annual report November 2009 to October 2010.
P.J. Connolly, I.G. Jezorek
2011, Report
This report summarizes work completed by U.S. Geological Survey’s Columbia River Research Laboratory (USGS-CRRL) in the Wind River subbasin during the period November 2009 through October 2010 under Bonneville Power Administration (BPA) contract 46102. Long term research in the Wind River has focused on assessments of steelhead/rainbow trout Oncorhynchus mykiss...
Recovery of native treefrogs after removal of nonindigenous Cuban Treefrogs, Osteopilus septentrionalis
K.G. Rice, J.H. Waddle, M.W. Miller, M.E. Crockett, F.J. Mazzotti, H.F. Percival
2011, Herpetologica (67) 105-117
Florida is home to several introduced animal species, especially in the southern portion of the state. Most introduced species are restricted to the urban and suburban areas along the coasts, but some species, like the Cuban Treefrog (Osteopilus septentrionalis), are locally abundant in natural protected areas. Although Cuban...
