Simulations of cataclysmic outburst floods from Pleistocene Glacial Lake Missoula
Roger P. Denlinger, D. R. H. O’Connell
2009, Geological Society of America Bulletin (122) 678-689
Using a flow domain that we constructed from 30 m digital-elevation model data of western United States and Canada and a two-dimensional numerical model for shallow-water flow over rugged terrain, we simulated outburst floods from Pleistocene Glacial Lake Missoula. We modeled a large, but not the largest, flood, using initial...
Neogene Gas Total Petroleum System -- Neogene Nonassociated Gas Assessment Unit of the San Joaquin Basin Province: Chapter 22 in Petroleum systems and geologic assessment of oil and gas in the San Joaquin Basin Province, California
Allegra Hosford Scheirer, Leslie B. Magoon
2009, Professional Paper 1713-22
The Neogene Nonassociated Gas Assessment Unit (AU) of the Neogene Total Petroleum System consists of nonassociated gas accumulations in Pliocene marine and brackish-water sandstone located in the south and central San Joaquin Basin Province (Rudkin, 1968). Traps consist mainly of stratigraphic lenses in low-relief, elongate domes that trend northwest-southeast. Reservoir...
The assembly, collapse and restoration of food webs
Andy Dobson, Stefano Allesina, Kevin Lafferty, Mercedes Pascual
2009, Philosophical Transactions of the Royal Society B: Biological Sciences (364) 1803-1806
Darwin chose the metaphor of a 'tangled bank' to conclude the 'Origin of species'. Two centuries after Darwin's birth, we are still untangling the complex ecological networks he has pondered. In particular, studies of food webs provide important insights into how natural ecosystems function (Pascual & Dunne 2005). Although the...
The Portland Basin: A (big) river runs through it
Russell C. Evarts, Jim E. O'Connor, Ray E. Wells, Ian P. Madin
2009, GSA Today (19) 4-10
Metropolitan Portland, Oregon, USA, lies within a small Neogene to Holocene basin in the forearc of the Cascadia subduction system. Although the basin owes its existence and structural development to its convergent-margin tectonic setting, the stratigraphic architecture of basin-fill deposits chiefly reflects its physiographic position along the lower reaches of...
Eruption of Alaska volcano breaks historic pattern
Jessica Larsen, Christina A. Neal, Peter Webley, Jeff Freymueller, Matthew Haney, Stephen McNutt, David Schneider, Stephanie Prejean, Janet Schaefer, Rick L. Wessels
2009, Eos, Transactions, American Geophysical Union (90) 173-174
In the late morning of 12 July 2008, the Alaska Volcano Observatory (AVO) received an unexpected call from the U.S. Coast Guard, reporting an explosive volcanic eruption in the central Aleutians in the vicinity of Okmok volcano, a relatively young (~2000-year-old) caldera. The Coast Guard had received an emergency call...
Temporal and maternal effects on reproductive ecology of the giant gartersnake (Thamnophis gigas)
Brian J. Halstead, Glenn D. Wylie, Michael L. Casazza, Peter S. Coates
2009, Southwestern Naturalist (56) 29-34
We used mixed-effects models to examine relationships of reproductive characteristics of the giant gartersnake (Thamnophis gigas) to improve population modeling and conservation planning for this species. Neonates from larger litters had lower mass, and mass of neonates also was affected by random variation among mothers. Length of mother did not...
Stratigraphy and conodont biostratigraphy of the uppermost Carboniferous and Lower Permian from the North American Midcontinent
Darwin R. Boardman II, Bruce R. Wardlaw, Merlynd K. Nestell
2009, Kansas Geological Survey Bulletin (255)
Part A The uppermost Wabaunsee, Admire, Council Grove, and lower Chase Groups of Kansas, Oklahoma, and Nebraska are placed into three third-order depositional sequences: a Gzhelian late-highstand sequence set, a Council Grove transgressive and highstand sequence set, and a Chase transgressive sequence set. Sequences are defined by bounding maximum-exposure surfaces...
Spring migration routes and chronology of surf scoters (Melanitta perspicillata): A synthesis of Pacific coast studies
Susan E.W. De La Cruz, John Y. Takekawa, M. T. Wilson, D.R. Nysewander, J.R. Evenson, Daniel Esler, W. S. Boyd, David H. Ward
2009, Canadian Journal of Zoology (87) 1069-1086
Understanding interconnectivity among wintering, stopover, and breeding areas of migratory birds is pivotal to discerning how events occurring in each might have a cross-seasonal effect on another. Such information can guide the location and timing of conservation efforts. Thus, we examined spring migration routes, chronology, and stopover use of 85...
Structural development of high-temperature mylonites in the Archean Wyoming province, northwestern Madison Range, Montana
Karl S. Kellogg, David W. Mogk
2009, Rocky Mountain Geology (44) 85-102
The Crooked Creek mylonite, in the northwestern Madison Range, southwestern Montana, is defined by several curved lenses of high non-coaxial strain exposed over a 7-km-wide, northeast-trending strip. The country rocks, part of the Archean Wyoming province, are dominantly trondhjemitic to granitic orthogneiss with subordinate amphibolite, quartzite, aluminous gneiss, and sills...
Size and shape of Saturn's moon Titan
Howard A. Zebker, Bryan Stiles, Scott Hensley, Ralph Lorenz, Randolph L. Kirk, Jonathan Lunine
2009, Science (324) 921-923
Cassini observations show that Saturn’s moon Titan is slightly oblate. A fourth-order spherical harmonic expansion yields north polar, south polar, and mean equatorial radii of 2574.32 ± 0.05 kilometers (km), 2574.36 ± 0.03 km, and 2574.91 ± 0.11 km, respectively; its mean radius is 2574.73 ± 0.09 km. Titan’s shape...
Aeromagnetic survey of Howard Pass quadrangle and the East half of Misheguk Mountain quadrangle, Alaska—a Web site for the distribution of data
Philip J. Brown
2009, Open-File Report 2009-1256
U.S. Geological Survey Open-File-Report 2009-1256 is for the preliminary release of magnetic data (and associated contractor reports) for an airborne survey in the Brooks Range, northwest of Bettles, Alaska....
Modeling co-occurrence of northern spotted and barred owls: accounting for detection probability differences
Larissa L. Bailey, Janice A. Reid, Eric D. Forsman, James D. Nichols
2009, Biological Conservation (142) 2983-2989
Barred owls (Strix varia) have recently expanded their range and now encompass the entire range of the northern spotted owl (Strix occidentalis caurina). This expansion has led to two important issues of concern for management of northern spotted owls: (1) possible competitive interactions between the two species that could contribute...
Digital seismic-reflection data from western Rhode Island Sound, 1980
K.Y. McMullen, L.J. Poppe, N.K. Soderberg
2009, Open-File Report 2009-1002
During 1980, the U.S. Geological Survey (USGS) conducted a seismic-reflection survey in western Rhode Island Sound aboard the Research Vessel Neecho. Data from this survey were recorded in analog form and archived at the USGS Woods Hole Science Center's Data Library. Due to recent interest in the geology of Rhode...
Low-flow frequency and flow duration of selected South Carolina streams in the Pee Dee River basin through March 2007
Toby D. Feaster, Wladmir B. Guimaraes
2009, Open-File Report 2009-1171
Part of the mission of the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular...
Digital Mapping Techniques '08: Workshop Proceedings, Moscow, Idaho, May 18-21, 2008
David R. Soller
2009, Open-File Report 2009-1298
The Digital Mapping Techniques '08 (DMT'08) workshop was attended by more than 100 technical experts from 40 agencies, universities, and private companies, including representatives from 24 State geological surveys. This year's meeting, the twelfth in the annual series, was hosted by the Idaho Geological Survey, from May 18-21, 2008, on...
Taste and odor occurrence in Lake William C. Bowen and Municipal Reservoir #1, Spartanburg County, South Carolina
Celeste Journey, Jane M. Arrington
2009, Fact Sheet 2009-3043
The U.S. Geological Survey and Spartanburg Water are working cooperatively on an ongoing study of Lake Bowen and Reservoir #1 to identify environmental factors that enhance or influence the production of geosmin in the source-water reservoirs. Spartanburg Water is using information from this study to develop management strategies to reduce...
Estimated use of water in Alabama in 2005
Susan S. Hutson, Thomas M. Littlepage, Michael J. Harper, James O. Tinney
2009, Scientific Investigations Report 2009-5163
Water use in Alabama was about 9,958 million gallons per day (Mgal/d) during 2005. Estimates of withdrawals by source indicate that total surface-water withdrawals were about 9,467 Mgal/d (95 percent of the total withdrawals) and the remaining 491 Mgal/d (5 percent) were from ground water. More surface water than ground...
Mine spoil prairies expand critical habitat for endangered and threatened amphibian and reptile species
Michael J. Lannoo, Vanessa C. Kinney, Jennifer L. Heemeyer, Nathan J. Engbrecht, Alisa L. Gallant, Robert W. Klaver
2009, Diversity (1) 118-132
Coal extraction has been occurring in the Midwestern United States for over a century. Despite the pre-mining history of the landscape as woodlands, spent surface coalfields are often reclaimed to grasslands. We assessed amphibian and reptile species on a large tract of coal spoil prairie and found 13 species of...
Revisions to the stratigraphic nomenclature of the Abiquiu Formation, Abiquiu and contiguous areas, north-central New Mexico
Florian Maldonado, Shari A. Kelley
2009, New Mexico Geology (31) 3-8
Stratigraphic studies and geologic mapping on the Abiquiu 7.5-min quadrangle have led to revision of the stratigraphic nomenclature for the Oligocene to Miocene Abiquiu Formation in north-central New Mexico. The Abiquiu Formation had previously been defined to include informal upper, middle (Pedernal chert member), and lower members. The basement-derived conglomeratic...
Response to the Point of View of Gregory B. Pauly, David M. Hillis, and David C. Cannatella, by the Anuran Subcommittee of the SSAR/HL/ASIH Scientific and Standard English Names List
Darrel R. Frost, Roy W. McDiarmid, Joseph R. Mendelson III
2009, Herpetologica (65) 136-153
The Point of View by Gregory Pauly, David Hillis, and David Cannatella misrepresents the motives and activities of the anuran subcommittee of the Scientific and Standard English Names Committee, contains a number of misleading statements, omits evidence and references to critical literature that have already rejected or superseded their positions,...
Rebuttal of "Polar bear population forecasts: a public-policy forecasting audit"
Steven C. Amstrup, Hal Caswell, Eric DeWeaver, Ian Stirling, David C. Douglas, Bruce G. Marcot, Christine M. Hunter
2009, Interfaces (39) 353-369
Observed declines in the Arctic sea ice have resulted in a variety of negative effects on polar bears (Ursus maritimus). Projections for additional future declines in sea ice resulted in a proposal to list polar bears as a threatened species under the United States Endangered Species Act. To provide information...
Archive of digital boomer seismic reflection data collected offshore east-central Florida during USGS cruise 00FGS01, July 14-22, 2000
Janice A. Subino, Shawn V. Dadisman, Dana S. Wiese, Karynna Calderon, Daniel C. Phelps
2009, Data Series 496
In July of 2000, the U.S. Geological Survey (USGS), in cooperation with the Florida Geological Survey (FGS), conducted a geophysical survey of the Atlantic Ocean offshore Florida's east coast from Brevard County to northern Martin County. This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline...
USGS field activity 09FSH01 on the west Florida shelf, Gulf of Mexico, in February 2009
Lisa L. Robbins, Paul O. Knorr, Xuewu Liu, Robert H. Byrne, Ellen A. Raabe
2009, Data Series 535-B
From February 24 to 28, 2009, a cruise led by the U.S. Geological Survey (USGS) collected air and sea surface partial pressure of carbon dioxide (pCO2), pH, dissolved inorganic carbon (DIC), and total alkalinity (TA) data on the west Florida shelf. Approximately 1,800 data points were collected underway over a...
USGS field activity 08FSH01 on the west Florida shelf, Gulf of Mexico, in August 2008
Lisa L. Robbins, Paul O. Knorr, Xuewu Liu, Robert H. Byrne, Ellen A. Raabe
2009, Data Series 535-A
From August 11 to 15, 2008, a cruise led by the U.S. Geological Survey (USGS) collected air and sea surface partial pressure of carbon dioxide (pCO2), pH, dissolved inorganic carbon (DIC), and total alkalinity (TA) data on the west Florida shelf. Approximately 1,600 data points were collected underway over a...
USGS field activity 09FSH02 on the west Florida shelf, Gulf of Mexico, in August 2009
Lisa L. Robbins, Paul O. Knorr, Xuewu Liu, Robert H. Byrne, Ellen A. Raabe
2009, Data Series 535-C
From August 17 to 21, 2009, a cruise led by the U.S. Geological Survey (USGS) collected air and sea surface partial pressure of carbon dioxide (pCO2), pH, dissolved inorganic carbon (DIC), and total alkalinity (TA) data on the west Florida shelf. Approximately 2,000 data points were collected underway over a...
