Organic geochemistry - A retrospective of its first 70 years
K.A. Kvenvolden
2006, Conference Paper, Organic Geochemistry
Organic geochemistry had its origin in the early part of the 20th century when organic chemists and geologists realized that detailed information on the organic materials in sediments and rocks was scientifically interesting and of practical importance. The generally acknowledged "father" of organic geochemistry is Alfred E. Treibs (1899-1983), who...
Continuous resistivity profiling to delineate submarine groundwater discharge - Examples and limitations
F. D. Day-Lewis, E.A. White, C. D. Johnson, J. W. Lane, M. Belaval
2006, Leading Edge (Tulsa, OK) (25) 724-728
Aquifer-ocean interaction, saline intrusion, and submarine groundwater discharge (SGD) are emerging topics in hydrology and oceanography with important implications for water-resource management and estuarine ecology. Although the threat of saltwater intrusion has long been recognized in coastal areas, SGD has, until recently, received much less attention. It is clear that...
Field tests of acoustic telemetry for a portable coastal observatory
M. Martini, B. Butman, J. Ware, D. Frye
2006, Conference Paper, OCEANS 2006
Long-term field tests of a low-cost acoustic telemetry system were carried out at two sites in Massachusetts Bay. At each site, an acoustic Doppler current profiler mounted on a bottom tripod was fitted with an acoustic modem to transmit data to a surface buoy; electronics mounted on the buoy relayed...
Persistence of Pasteurella multocida in wetlands following avian cholera outbreaks
Julie A. Blanchong, M.D. Samuel, Diana R. Goldberg, D.J. Shadduck, M. A. Lehr
2006, Journal of Wildlife Diseases (42) 33-39
Avian cholera, caused by Pasteurella multocida, affects waterbirds across North America and occurs worldwide among various avian species. Once an epizootic begins, contamination of the wetland environment likely facilitates the transmission of P. multocida to susceptible birds. To evaluate the ability of P. multocida serotype-1, the most common serotype associated...
Isoeugenol concentrations in rainbow trout (Oncorhynchus mykiss) skin-on fillet tissue after exposure to AQUI-S™ at different temperatures, durations, and concentrations
Jeffery R. Meinertz, Shari L. Greseth, Theresa M. Schreier, Jeffry A. Bernardy, William H. Gingerich
2006, Aquaculture (254) 347-354
AQUI-S™ is a fish anesthetic/sedative approved for use in several countries including Australia, Chile, and New Zealand and is being pursued for use in the United States. Legal use of AQUI-S™ as an anesthetic in U.S. fish culture depends on approval by the U.S. Food and Drug Administration (FDA)....
The transition from explosive to effusive eruptive regime: The example of the 1912 Novarupta eruption, Alaska
N.K. Adams, Bruce F. Houghton, S.A. Fagents, W. Hildreth
2006, Geological Society of America Bulletin (118) 620-634
The shift from explosive to effusive silicic volcanism seen in many historical eruptions reflects a change in the style of degassing of erupted magma. This paper focuses on such a transition during the largest eruption of the twentieth century, the 1912 eruption of Novarupta. The transition is recorded in a...
Nd, Pb, Sr, and O isotopic characterization of Saudi Arabian Shield terranes
D. B. Stoeser, C.D. Frost
2006, Chemical Geology (226) 163-188
New Nd, Sr and O isotopic data for granitoid rocks of the Saudi Arabian Shield are presented together with published Nd, Pb, Sr and O isotopic data and all available geologic and geochronologic information to re-evaluate the terranes defined for the Saudi Arabian part of the Arabian-Nubian Shield. Three groups...
State summaries: Indiana
K.R. Shaffer
2006, Mining Engineering (58) 90-92
In 2005, the Indiana industrial minerals industry generated $789 million, a record high for the state and an increase of 2.2% from 2004. Among all states, Indiana ranked 24th. Mineral commodities produced in the state included crushed limestone and dolomite, construction sand and gravel, industrial sand, dimension limestone, dimension sandstone,...
A shock-induced polymorph of anatase and rutile from the Chesapeake Bay impact structure, Virginia, U.S.A
J.C. Jackson, J. Wright Horton Jr., I.-M. Chou, H. E. Belkin
2006, American Mineralogist (91) 604-608
A shock-induced polymorph (TiO2II) of anatase and rutile has been identified in breccias from the late Eocene Chesapeake Bay impact structure. The breccia samples are from a recent, partially cored test hole in the central uplift at Cape Charles, Virginia. The drill cores from 744 to 823 m depth consist...
Industrial diamond
D.W. Olson
2006, Mining Engineering (58) 36-37
In 2005, estimated world production of natural and synthetic industrial diamond was 630 million carats. Natural industrial diamond deposits were found in more than 35 countries. Synthetic industrial diamond is produced in at least 15 countries. More than 81% of the combined natural and synthetic global output was produced in...
Deep magma transport at Kilauea volcano, Hawaii
T. L. Wright, F. W. Klein
2006, LITHOS (87) 50-79
The shallow part of Kilauea's magma system is conceptually well-understood. Long-period and short-period (brittle-failure) earthquake swarms outline a near-vertical magma transport path beneath Kilauea's summit to 20 km depth. A gravity high centered above the magma transport path demonstrates that Kilauea's shallow magma system, established early in the volcano's history,...
The effect of calcium on aqueous uranium(VI) speciation and adsorption to ferrihydrite and quartz
P.M. Fox, J.A. Davis, J.M. Zachara
2006, Geochimica et Cosmochimica Acta (70) 1379-1387
Recent studies of uranium(VI) geochemistry have focused on the potentially important role of the aqueous species, CaUO2(CO3)32− and Ca2UO2(CO3)30(aq), on inhibition of microbial reduction and uranium(VI) aqueous speciation in contaminated groundwater. However, to our knowledge, there have been no direct studies of the effects...
Estimation of temporary emigration in male toads
E. Muths, R. D. Scherer, P.S. Corn, B.A. Lambert
2006, Ecology (87) 1048-1056
Male boreal toads (Bufo boreas) are thought to return to the breeding site every year but, if absent in a particular year, will be more likely to return the following year. Using Pollock's robust design we estimated temporary emigration (the probability a male toad is absent from a breeding site...
Perchlorate in pleistocene and holocene groundwater in North-Central New Mexico
Niel Plummer, J.K. Böhlke, M. W. Doughten
2006, Environmental Science & Technology (40) 1757-1763
Groundwater from remote parts of the Middle Rio Grande Basin in north-central New Mexico has perchlorate (ClO4-) concentrations of 0.12−1.8 μg/L. Because the water samples are mostly preanthropogenic in age (0−28 000 years) and there are no industrial sources in the study area, a natural source of the...
A Bayesian random effects discrete-choice model for resource selection: Population-level selection inference
D.L. Thomas, D. Johnson, B. Griffith
2006, Journal of Wildlife Management (70) 404-412
Modeling the probability of use of land units characterized by discrete and continuous measures, we present a Bayesian random-effects model to assess resource selection. This model provides simultaneous estimation of both individual- and population-level selection. Deviance information criterion (DIC), a Bayesian alternative to AIC that is sample-size specific, is used...
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...
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...
The influence of fall-spawning coho salmon (Oncorhynchus kisutch) on growth and production of juvenile coho salmon rearing in beaver ponds on the Copper River Delta, Alaska
D.W. Lang, G.H. Reeves, J.D. Hall, M.S. Wipfli
2006, Canadian Journal of Fisheries and Aquatic Sciences (63) 917-930
This study examined the influence of fall-spawning coho salmon (Oncorhynchus kisutch) on the density, growth rate, body condition, and survival to outmigration of juvenile coho salmon on the Copper River Delta, Alaska, USA. During the fall of 1999 and 2000, fish rearing in beaver ponds that received spawning salmon were...
Costimulatory receptors in a teleost fish: Typical CD28, elusive CTLA4
D. Bernard, B. Riteau, J.D. Hansen, R.B. Phillips, F. Michel, P. Boudinot, A. Benmansour
2006, Journal of Immunology (176) 4191-4200
T cell activation requires both specific recognition of the peptide-MHC complex by the TCR and additional signals delivered by costimulatory receptors. We have identified rainbow trout sequences similar to CD28 (rbtCD28) and CTLA4 (rbtCTLA4). rbtCD28 and rbtCTLA4 are composed of an extracellular Ig-superfamily V domain, a...
Population dynamics of zebra mussels Dreissena polymorpha (Pallas, 1771) during the initial invasion of the Upper Mississippi River, USA
W.G. Cope, M.R. Bartsch, J.E. Hightower
2006, Journal of Molluscan Studies (72) 179-188
The aim of this study was to document and model the population dynamics of zebra mussels Dreissena polymorpha (Pallas, 1771) in Pool 8 of the Upper Mississippi River (UMR), USA, for five consecutive years (1992-1996) following their initial discovery in September 1991. Artificial substrates (concrete blocks, 0.49 m2 surface area)...
Bacterial biomarkers thermally released from dissolved organic matter
P.F. Greenwood, J.A. Leenheer, C. McIntyre, L. Berwick, P.D. Franzmann
2006, Organic Geochemistry (37) 597-609
Hopane biomarker products were detected using microscale sealed vessel (MSSV) pyrolysis gas chromatography-mass spectrometry (GC-MS) analysis of dissolved organic matter from natural aquatic systems colonised by bacterial populations. MSSV pyrolysis can reduce the polyhydroxylated alkyl side chain of bacteriohopanepolyols, yielding saturated hopane products which are more amenable to GC-MS detection...
A plastic flow model for the Acquara - Vadoncello landslide in Senerchia, Southern Italy
W. Savage, J. Wasowski
2006, Engineering Geology (83) 4-21
A previously developed model for stress and velocity fields in two-dimensional Coulomb plastic materials under self-weight and pore pressure predicts that long, shallow landslides develop slip surfaces that manifest themselves as normal faults and normal fault scarps at the surface in areas of extending flow and as thrust faults and...
Surface waves in the western Taiwan coastal plain from an aftershock of the 1999 Chi-Chi, Taiwan, earthquake
G.-Q. Wang, G.-Q. Tang, D.M. Boore, Burbach G. Van Ness G., C.R. Jackson, X.-Y. Zhou, Q.-L. Lin
2006, Bulletin of the Seismological Society of America (96) 821-845
Significant surface waves were recorded in the western coastal plain (WCP) of Taiwan during the 1999 Chi-Chi, Taiwan, earthquake and its series of aftershocks. We study in detail the surface waves produced by one aftershock (20 September 1999, 18hr 03m 41.16sec, M 6.2) in this paper. We take the Chelungpu-Chukou...
The 1906 earthquake and a century of progress in understanding earthquakes and their hazards
M.L. Zoback
2006, GSA Today (16) 4-11
The 18 April 1906 San Francisco earthquake killed nearly 3000 people and left 225,000 residents homeless. Three days after the earthquake, an eight-person Earthquake Investigation Commission composed of 25 geologists, seismologists, geodesists, biologists and engineers, as well as some 300 others started work under the supervision of Andrew Lawson to...
Groundwater-surface water interactions in wetlands for integrated water resources management
P. Schot, T. Winter
2006, Conference Paper, Journal of Hydrology
[No abstract available]...
