Experiments on δ34S mixing between organic and inorganic sulfur species during thermal maturation
Alon Amrani, Ward Said-Ahamed, Michael D. Lewan, Zeev Aizenshtat
2006, Geochimica et Cosmochimica Acta (70) 5146-5161
Reduced sulfur species were studied to constrain isotopic exchange-mixing with synthetic polysulfide cross-linked macromolecules (PCLM), model sulfur containing molecules and natural sulfur-rich kerogen, asphalt and oil of the Dead Sea area. PCLM represents protokerogens that are rich in sulfur and thermally unstable. Mixing rates of PCLM with <a...
Glacial Lake Musselshell: Late Wisconsin slackwater on the Laurentide ice margin in central Montana, USA
N.K. Davis, W. W. Locke III, K. L. Pierce, R.C. Finkel
2006, Geomorphology (75) 330-345
Cosmogenic surface exposure ages of glacial boulders deposited in ice-marginal Lake Musselshell suggest that the lake existed between 20 and 11.5 ka during the Late Wisconsin glacial stage (MIS 2), rather than during the Late Illinoian stage (MIS 6) as traditionally thought. The altitude of the highest ice-rafted boulders and...
National large-scale urban true orthophoto mapping and its standard initiative
G. Zhou, W. Xie, S. Benjamin, R.G. Fegeas, J. Simmers, H. Cluff, Y. Lei, J. Foust
2006, Conference Paper, ACM International Conference Proceeding Series
[No abstract available]...
Beyond the obvious limits of ore deposits: The use of mineralogical, geochemical, and biological features for the remote detection of mineralization
D. L. Kelley, K.D. Kelley, W.B. Coker, B. Caughlin, M.E. Doherty
2006, Economic Geology (101) 729-752
Far field features of ore deposits include mineralogical, geochemical, or biological attributes that can be recognized beyond the obvious limits of the deposits. They can be primary, if formed in association with mineralization or alteration processes, or secondary, if formed from the interaction of ore deposits with the hydrosphere and...
SHRIMP study of zircons from Early Archean rocks in the Minnesota River Valley: Implications for the tectonic history of the Superior Province
M. E. Bickford, J. L. Wooden, R. L. Bauer
2006, Geological Society of America Bulletin (118) 94-108
Interest in Paleoarchean to early Mesoarchean crust in North America has been sparked by the recent identification of ca. 3800-3500 Ma rocks on the northern margin of the Superior craton in the Assean Lake region of northern Manitoba and the Porpoise Cove terrane in northern Quebec. It has long been...
Macroinvertebrate assemblage recovery following a catastrophic flood and debris flows in an Appalachian mountain stream
C.D. Snyder, Z.B. Johnson
2006, Journal of the North American Benthological Society (25) 825-840
In June 1995, heavy rains caused severe flooding and massive debris flows on the Staunton River, a 3rd-order stream in the Blue Ridge Mountains (Virginia, USA). Scouring caused the loss of the riparian zone and repositioned the stream channel of the lower 2.1 km of the stream. Between 1998 and...
Sedimentary deposits of the 26 December 2004 tsunami on the northwest coast of Aceh, Indonesia
A. Moore, Y. Nishimura, G. Gelfenbaum, T. Kamataki, R. Triyono
2006, Earth, Planets and Space (58) 253-258
The 2004 Sumatra-Andaman tsunami flooded coastal northern Sumatra to a depth of over 20 m, deposited a discontinuous sheet of sand up to 80 cm thick, and left mud up to 5 km inland. In most places the sand sheet is normally graded, and in some it contains complex internal...
Feasibility of an implantable capsule for limiting lifespan of grass carp
R.M. Thomas, L.E. Miranda, J.P. Kirk
2006, Journal of Aquatic Plant Management (44) 80-89
The grass carp (Ctenopharyngodon idella) is an herbivorous cyprinid stocked to control undesirable aquatic vegetation. However, stocking grass carp presents several problems including complete eradication of submersed aquatic vegetation, dispersal out of the target area, adverse effects on fish communities, and damage to waterfowl habitat and native vegetation. The purpose...
Ecological characteristics of coral patch reefs at Midway Atoll, Northwestern Hawaiian Islands
R.E. Schroeder, J.D. Parrish
2006, Atoll Research Bulletin 439-460
Ecological aspects of coral patch reefs were studied from 1981 to 1985 in Welles Harbor, Midway Atoll. Water temperatures varied from 17??C in February to 28??C in August. Sizes of reefs studied were described by mean area (59 m2), mean volume (52 m3), vertical relief (<1 m), and inter-reef isolation...
Paleoseismic observations of an onshore transform boundary: The Magallanes-Fagnano fault, Tierra del Fuego, Argentina
C.H. Costa, R. Smalley Jr., David P. Schwartz, Heidi D. Stenner, M. Ellis, E.A. Ahumada, M.S. Velasco
2006, Revista de la Asociacion Geologica Argentina (61) 647-657
We present preliminary information on the geomorphologic features and paleoseismic record associated with the ruptures of two Ms 7.8 earthquakes that struck Tierra del Fuego and the southernmost continental margin of South America on December 17, 1949. The fault scarp was surveyed in several places cast of Lago Fagnano and...
State summaries: West Virginia
B.M. Blake, N. Fedorko, G.H. McColloch
2006, Mining Engineering (58) 122-125
West Virginia mines coal, limestone, sandstone, gravel, clay and other nonfuel materials. Limestone production figures for 2005 are not yet available but in 2004, limestone production accounted for 85.7% of noncoal production on a tonnage basis. In 2005, 327 coal mines reported production during the year. Underground mining accounted for...
Both msa genes in Renibacterium salmoninarum are needed for full virulence in bacterial kidney disease
A.M. Coady, A.L. Murray, D.G. Elliott, L.D. Rhodes
2006, Applied and Environmental Microbiology (72) 2672-2678
Renibacterium salmoninarum, a gram-positive diplococcobacillus that causes bacterial kidney disease among salmon and trout, has two chromosomal loci encoding the major soluble antigen (msa) gene. Because the MSA protein is widely suspected to be an important virulence factor, we used insertion-duplication mutagenesis to generate disruptions of either the msa1 or...
Late Pleistocene outburst flooding from pluvial Lake Alvord into the Owyhee River, Oregon
D.T. Carter, L.L. Ely, J. E. O’Connor, C.R. Fenton
2006, Geomorphology (75) 346-367
At least one large, late Pleistocene flood traveled into the Owyhee River as a result of a rise and subsequent outburst from pluvial Lake Alvord in southeastern Oregon. Lake Alvord breached Big Sand Gap in its eastern rim after reaching an elevation of 1292 m, releasing 11.3 km3 of water...
Population structure, persistence, and seasonality of autochthonous Escherichia coli in temperate, coastal forest soil from a Great Lakes watershed
M.N. Byappanahalli, R.L. Whitman, D.A. Shively, M.J. Sadowsky, S. Ishii
2006, Environmental Microbiology (8) 504-513
The common occurrence of Escherichia coli in temperate soils has previously been reported, however, there are few studies to date to characterize its source, distribution, persistent capability and genetic diversity. In this study, undisturbed, forest soils within six randomly selected 0.5 m2 exclosure plots (covered by netting of 2.3 mm2...
Development of standardized lunar regolith simulant materials
P. Carpenter, L. Sibille, S. Wilson, G. Meeker
2006, Conference Paper, Microscopy and Microanalysis
[No abstract available]...
Nest survival of clay-colored and vesper sparrows in relation to woodland edge in mixed-grass prairies
T.A. Grant, E.M. Madden, T.L. Shaffer, P.J. Pietz, G.B. Berkey, N.J. Kadrmas
2006, Journal of Wildlife Management (70) 691-701
The quantity and quality of northern mixed-grass prairie continues to decline because of conversion to agriculture, invasion of woody and exotic plants, and disruption of important ecological processes that shape grasslands. Declines in grassland bird populations in North Dakota, USA, have coincided with these largely anthropogenic alterations to prairie habitat....
Pleistocene corals of the Florida keys: Architects of imposing reefs - Why?
B. H. Lidz
2006, Journal of Coastal Research (22) 750-759
Five asymmetrical, discontinuous, stratigraphically successive Pleistocene reef tracts rim the windward platform margin off the Florida Keys. Built of large head corals, the reefs are imposing in relief (???30 m high by 1 km wide), as measured from seismic profiles. Well dated to marine oxygen isotope substages 5c, 5b, and...
An annotated list of aquatic insects of Fort Sill, Oklahoma, excluding diptera with notes on several new state records
R.E. Zuellig, B.C. Kondratieff, J.P. Schmidt, R.S. Durfee, D.E. Ruiter, I.E. Prather
2006, Journal of the Kansas Entomological Society (79) 34-54
Qualitative collections of aquatic insects were made at Fort Sill, Lawton, Oklahoma, between 2002 and 2004. Ephemeroptera, Plecoptera, Trichoptera, Odonata, Coleoptera, aquatic Heteroptera, Neuroptera, and Megaloptera were targeted. Additional records are included from a survey that took place in 1999. More than 11,000 specimens from more than 290 collections were...
Early Cretaceous terrestrial ecosystems in East Asia based on food-web and energy-flow models
M. Matsukawa, K. Saiki, M. Ito, I. Obata, D. J. Nichols, M.G. Lockley, R. Kukihara, K. Shibata
2006, Cretaceous Research (27) 285-307
In recent years, there has been global interest in the environments and ecosystems around the world. It is helpful to reconstruct past environments and ecosystems to help understand them in the present and the future. The present environments and ecosystems are an evolving continuum with those of the past and...
Distribution of tui chub in the Cow Head basin, Nevada and California
G.G. Scoppettone, P.H. Rissler
2006, California Fish and Game (92) 106-112
[No abstract available]...
Effects of elevated CO2 on fine root dynamics in a Mojave Desert community: A FACE study
D.L. Phillips, M. G. Johnson, D.T. Tingey, C.E. Catricala, T.L. Hoyman, R.S. Nowak
2006, Global Change Biology (12) 61-73
Fine roots (??? 1mm diameter) are critical in plant water and nutrient absorption, and it is important to understand how rising atmospheric CO2 will affect them as part of terrestrial ecosystem responses to global change. This study's objective was to determine effects of elevated CO2 on production, mortality, and standing...
Gemstones
D.W. Olson
2006, Mining Engineering (58) 31-32
During 2005, the estimated value of natural gemstones produced from US deposits was $13.9 million. Production included agates, amber, beryl, coral, garnet, jade, jasper, opal, pearl, quartz, sapphire, shell, topaz, tourmaline, and torquoise among others. For the year, the US gemstone trade with all countries and territories exceeded $26 billion....
Atmospheric deposition of current-use and historic-use pesticides in snow at National Parks in the Western United States
K.J. Hageman, S.L. Simonich, K. Campbell, G.R. Wilson, D.H. Landers
2006, Environmental Science & Technology (40) 3174-3180
The United States (U.S.) National Park Service has initiated research on the atmospheric deposition and fate of semi-volatile organic compounds in its alpine, sub-Arctic, and Arctic ecosystems in the Western U.S. Results for the analysis of pesticides in seasonal snowpack samples collected in spring 2003 from seven national parks are...
Carbon isotopic fractionation of CH4 and CO2 during canister desorption of coal
D. Strapoc, A. Schimmelmann, Maria Mastalerz
2006, Organic Geochemistry (37) 152-164
Canister desorption of coal gas from freshly sampled coal is commonly used for exploratory assessment of the coalbed methane (CBM) potential of a basin or prospect, as well as for the sampling of gas for isotopic determination of the gas origin. Compositional and ??13C isotopic time-series of desorbing CBM and...
Educating veterinarians for careers in free-ranging wildlife medicine and ecosystem health
J.A.K. Mazet, G.E. Hamilton, L.A. Dierauf
2006, Journal of Veterinary Medical Education (33) 352-360
In the last 10 years, the field of zoological medicine has seen an expansive broadening into the arenas of free-ranging wildlife, conservation medicine, and ecosystem health. During the spring/summer of 2005, we prepared and disseminated a survey designed to identify training and educational needs for individuals entering the wildlife medicine...
