Use of thermal infrared imaging for monitoring renewed dome growth at Mount St. Helens, 2004
David J. Schneider, James W. Vallance, Rick L. Wessels, Matthew Logan, Michael S. Ramsey
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-17
A helicopter-mounted thermal imaging radiometer documented the explosive vent-clearing and effusive phases of the eruption of Mount St. Helens in 2004. A gyrostabilized gimbal controlled by a crew member housed the radiometer and an optical video camera attached to the nose of the helicopter. Since October 1, 2004, the system...
Growth of the 2004-2006 lava-dome complex at Mount St. Helens, Washington
James W. Vallance, David J. Schneider, Steve P. Schilling
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-9
The eruption of Mount St. Helens from 2004 to 2006 has comprised extrusion of solid lava spines whose growth patterns were shaped by a large space south of the 1980-86 dome that was occupied by the unique combination of glacial ice, concealed subglacial slopes, the crater walls, and relics of...
Rocks above the clouds: A hiker's and climber's guide to Colorado mountain geology
Jack Reed, Gene Ellis
2008, Book
A Colorado mountain geology book written specifically for climbers, scramblers and hikers. A geologic primer for mountain people with range-by-range geological descriptions of Colorado mountains and detailed geologic information on the Fourteeners. Rocks Above the Clouds is the first geology book written for climbers, scramblers and hikers. It is an exploration...
Magmatic conditions and processes in the storage zone of the 2004-2006 Mount St. Helens dacite
Malcom J. Rutherford, Joseph D. Devine III
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-31
The 2004-6 eruption of Mount St. Helens produced dacite that contains 40-50 volume percent phenocrysts of plagioclase, amphibole, low-Ca pyroxene, magnetite, and ilmenite in a groundmass that is nearly totally crystallized. Phenocrysts of amphibole and pyroxene range from 3 to 5 mm long and are cyclically zoned, with one to...
Methane hydrates
Ray Boswell, Koji Yamamoto, Sung-Rock Lee, Timothy S. Collett, Pushpendra Kumar, Scott Dallimore
2008, Book chapter, Future energy: Improved, sustainable and clean options for our planet
Gas hydrate is a solid, naturally occurring substance consisting predominantly of methane gas and water. Recent scientific drilling programs in Japan, Canada, the United States, Korea and India have demonstrated that gas hydrate occurs broadly and in a variety of forms in shallow sediments of the outer continental shelves and...
Use of digital aerophotogrammetry to determine rates of lava dome growth, Mount St. Helens, Washington, 2004-2005
Steve P. Schilling, Ren A. Thompson, James A. Messerich, Eugene Y. Iwatsubo
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-8
Beginning in October 2004, a new lava dome grew on the glacier-covered crater floor of Mount St. Helens, Washington, immediately south of the 1980s lava dome. Seventeen digital elevation models (DEMs) constructed from vertical aerial photographs have provided quantitative estimates of extruded lava volumes and total volume change. To extract...
Environmental presence and persistence of pharmaceuticals: An overview
Susan T. Glassmeyer, Dana W. Koplin, Edward T. Furlong, M. Focazio
2008, Book chapter, Fate of pharmaceuticals in the environment and in water treatment systems
Emerging contaminants (ECs) in the environment – that is, chemicals with domestic, municipal, industrial, or agricultural sources that are not commonly monitored but may have the potential for adverse environmental effects – is a rapidly growing field of research. The use of “emerging” is not intended to infer that the...
Seismic-monitoring changes and the remote deployment of seismic stations (seismic spider) at Mount St. Helens, 2004-2005
Patrick J. McChesney, Marvin R. Couchman, Seth C. Moran, Andrew B. Lockhart, Kelly J. Swinford, Richard G. LaHusen
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-7
The instruments in place at the start of volcanic unrest at Mount St. Helens in 2004 were inadequate to record the large earthquakes and monitor the explosions that occurred as the eruption developed. To remedy this, new instruments were deployed and the short-period seismic network was modified. A new method...
Seismicity and infrasound associated with explosions at Mount St. Helens, 2004-2005
Seth C. Moran, Patrick J. McChesney, Andrew B. Lockhart
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-6
Six explosions occurred during 2004-5 in association with renewed eruptive activity at Mount St. Helens, Washington. Of four explosions in October 2004, none had precursory seismicity and two had explosion-related seismic tremor that marked the end of the explosion. However, seismicity levels dropped following each of the October explosions, providing...
Petrology of the 2004-2006 Mount St. Helens lava dome -- implications for magmatic plumbing and eruption triggering
John S. Pallister, Carl R. Thornber, Katharine V. Cashman, Michael A. Clynne, Heather Lowers, Charlie Mandeville, Isabelle K. Brownfield, Gregory P. Meeker
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-30
Eighteen years after dome-forming eruptions ended in 1986, and with little warning, Mount St. Helens began to erupt again in October 2004. During the ensuing two years, the volcano extruded more than 80×106 m3 of gas-poor, crystal-rich dacite lava. The 2004-6 dacite is remarkably uniform in bulk-rock composition and, at...
Identification and evolution of the juvenile component in 2004-2005 Mount St. Helens ash
Michael C. Rowe, Carl R. Thornber, Adam J. R. Kent
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-29
Petrologic studies of volcanic ash are commonly used to identify juvenile volcanic material and observe changes in the composition and style of volcanic eruptions. During the 2004-5 eruption of Mount St. Helens, recognition of the juvenile component in ash produced by early phreatic explosions was complicated by the presence of...
Exposure assessment of veterinary medicines in aquatic systems
Chris Metcalfe, Alistair Boxall, Kathrin Fenner, Dana W. Kolpin, Eric Silberhorn, Jane Staveley
2008, Book chapter, Veterinary medicines in the environment
The release of veterinary medicines into the aquatic environment may occur through direct or indirect pathways. An example of direct release is the use of medicines in aquaculture (Armstrong et al. 2005; Davies et al. 1998), where chemicals used to treat fish are added directly to water. Indirect releases, in...
Buy it now: A hybrid internet market institution
Steven T. Anderson, Daniel Friedman, Garrett Milam, Nirvikar Singh
2008, Journal of Electronic Commerce Research (9) 137-153
This paper analyzes seller choices and outcomes in approximately 700 Internet auctions of a relatively homogeneous good. The ‘Buy it Now’ option allows the seller to convert the auction into a posted price market. We use a structural model to control for the conduct of the auction as well as...
The effect of river regulations and ground-water discharge on the ecology of the riparian corridors of the Colorado River and tributaries
Donald O. Rosenberry
2008, Conference Paper, 36th congress of the International Association of Hydrogeologists
No abstract available....
Towards monitoring land-cover and land-use changes at a global scale: the global land survey 2005
G. Gutman, Raymond A. Byrnes, J. Masek, S. Covington, C. Justice, S. Franks, Rachel Headley
2008, Photogrammetric Engineering and Remote Sensing (74) 6-10
Land cover is a critical component of the Earth system, infl uencing land-atmosphere interactions, greenhouse gas fl uxes, ecosystem health, and availability of food, fi ber, and energy for human populations. The recent Integrated Global Observations of Land (IGOL) report calls for the generation of maps documenting global land cover...
Instrumentation in remote and dangerous settings; examples using data from GPS “spider” deployments during the 2004-2005 eruption of Mount St. Helens, Washington
Richard G. LaHusen, Kelly J. Swinford, Matthew Logan, Michael Lisowski
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-16
Self-contained, single-frequency GPS instruments fitted on lightweight stations suitable for helicopter-sling payloads became a critical part of volcano monitoring during the September 2004 unrest and subsequent eruption of Mount St. Helens. Known as “spiders” because of their spindly frames, the stations were slung into the crater 29 times from September...
Analysis of GPS-measured deformation associated with the 2004-2006 dome-building eruption of Mount St. Helens, Washington
Michael Lisowski, Daniel Dzurisin, Roger P. Denlinger, Eugene Y. Iwatsubo
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-15
Detecting far-field deformation at Mount St. Helens since the crater-forming landslide and blast in 1980 has been difficult despite frequent volcanic activity and improved monitoring techniques. Between 1982 and 1991, the systematic extension of line lengths in a regional GPS trilateration network is consistent with recharge of a deep magma...
The Pleistocene eruptive history of Mount St. Helens, Washington, from 300,000 to 12,800 years before present
Michael A. Clynne, Andrew T. Calvert, Edward W. Wolfe, Russell C. Evarts, Robert J. Fleck, Marvin A. Lanphere
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-28
We report the results of recent geologic mapping and radiometric dating that add considerable detail to our understanding of the eruptive history of Mount St. Helens before its latest, or Spirit Lake, stage. New data and reevaluation of earlier work indicate at least two eruptive periods during the earliest, or...
Use of a groundwater flow model to assess the location, extent, and hydrologic properties of faults in the Rialto-Colton Basin, California
Linda R. Woolfenden
Eileen Poeter, Mary C. Hill, Chunmiao Zheng, editor(s)
2008, Conference Paper, MODFLOW and More 2008: Ground water and public policy — Conference proceedings
Faults within a groundwater basin can greatly influence the direction of groundwater flow and contaminant migration. Existing steady-state and transient groundwater flow models were used to assess the location, extent, and hydrologic properties of two alternative fault configurations within the Rialto-Colton basin. Adjustments were made to the hydrologic properties of...
Book review of Avalanche Dynamics by Shiva P. Pudasaini and Kolumban Hutter. Springer: Berlin-Heidelberg, 2007. 602 pages, 225 figures, 15 tables
Richard M. Iverson
2008, Journal of Geology (116) 103-103
This highly specialized book is interesting not only because of its important subject matter but also because of its egocentric perspective. The majority of the book provides a nearly exhaustive retrospective of the authors’ many contributions to the shallow‐flow theory of granular avalanches, and it also critiques contributions by others....
Preface
Susan L. Brantley, J. D. Kubicki, Arthur F. White
Susan L. Brantley, J. D. Kubicki, Arthur F. White, editor(s)
2008, Book chapter, Kinetics of water-rock interaction
No abstract available....
Ice, climate change and wildlife research in Alaska
Anthony R. DeGange
2008, Endangered Species Bulletin (33) 16-19
Not available...
Kinetics of water-rock interaction
Susan L. Brantley, J. D. Kubicki, Arthur F. White
2008, Book
No abstract available....
Quantitative approaches to characterizing natural chemical weathering rates
Arthur F. White
Susan L. Brantley, J. D. Kubicki, Arthur F. White, editor(s)
2008, Book chapter, Kinetics of water-rock interaction
Silicate minerals, constituting more than 90% of the rocks exposed at the earth’s surface, are commonly formed under temperature and pressure conditions that make them inherently unstable in surficial environments. Undoubtedly, the most significant aspect of chemical weathering resulting from this instability is the formation of soils which makes life...
Broadband characteristics of earthquakes recorded during a dome-building eruption at Mount St. Helens, Washington, between October 2004 and May 2005
Stephen P. Horton, Robert D. Norris, Seth C. Moran
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-5
From October 2004 to May 2005, the Center for Earthquake Research and Information of the University of Memphis operated two to six broadband seismometers within 5 to 20 km of Mount St. Helens to help monitor recent seismic and volcanic activity. Approximately 57,000 earthquakes identified during the 7-month deployment had...
