Influence of the Atlantic inflow and Mediterranean outflow currents on late Quaternary sedimentary facies of the Gulf of Cadiz continental margin
C.H. Nelson, J. Baraza, A. Maldonado, J. Rodero, C. Escutia, J. H. Barber Jr.
1999, Marine Geology (155) 99-129
The late Quaternary pattern of sedimentary facies on the Spanish Gulf of Cadiz continental shelf results from an interaction between a number of controlling factors that are dominated by the Atlantic inflow currents flowing southeastward across the Cadiz shelf toward the Strait of Gibraltar. An inner shelf shoreface sand facies...
The search for a source rock for the giant Tar Sand triangle accumulation, southeastern Utah
J. E. Huntoon, P. L. Hansley, N. D. Naeser
1999, American Association of Petroleum Geologists Bulletin (83) 467-495
A large proportion (about 36%) of the worlds oil resource is contained in accumulations of heavy oil or tar. In these large deposits of degraded oil, the oil in place represents only a fraction of what was present at the time of accumulation. In many of these deposits, the source...
A record of estuarine water contamination from the Cd content of foraminiferal tests in San Francisco Bay, California
A. VanGeen, S. N. Luoma
1999, Marine Chemistry (64) 57-69
A five-year dissolved Cd time series from San Francisco Bay and adjacent coastal water shows that the composition of surface water towards the mouth of the estuary is determined largely by the effect of coastal upwelling. Cd concentrations inside and outside the estuary (0.2-1.0 nmol/kg) increase as Cd-rich deep water...
Tolerance of freshwater test organisms to formulated sediments for use as control materials in whole-sediment toxicity tests
N.E. Kemble, F.J. Dwyer, C.G. Ingersoll, T.D. Dawson, T. J. Norberg-King
1999, Environmental Toxicology and Chemistry (18) 222-230
A method is described for preparing formulated sediments for use intoxicity testing. Ingredients used to prepare formulated sediments included commercially available silt, clay, sand, humic acid, dolomite, and α-cellulose (as a source of organic carbon). α-Cellulose was selected as the source of organic carbon because it is commercially available, consistent...
Rana luteiventris (Columbia Spotted Frog)
Patrick M. Kleeman
1999, Herpetological Review (30) 163-163
No abstract available....
Geology of the Barite Hill gold-silver deposit in the southern Carolina slate belt
Sandra H. B. Clark, Karen J. Gray, Judith M. Back
1999, Economic Geology (94) 1329-1346
Barite Hill is a stratiform gold-silver deposit associated with base metal sulfides and barite in greenschist facies rocks. The deposit, southernmost of four recently mined gold deposits in the Carolina slate belt, is located in the Lincolnton-McCormick district of Georgia and South Carolina, which includes several known gold-silver and base...
Direct measurement of the combined effects of lichen, rainfall, and temperature onsilicate weathering
P.V. Brady, R.I. Dorn, A.J. Brazel, J. Clark, R. B. Moore, T. Glidewell
1999, Geochimica et Cosmochimica Acta (63) 3293-3300
A key uncertainty in models of the global carbonate-silicate cycle and long-term climate is the way that silicates weather under different climatologic conditions, and in the presence or absence of organic activity. Digital imaging of basalts in Hawaii resolves the coupling between temperature, rainfall, and weathering in the presence and...
Growth patterns of Hawaiian Stilt chicks
J.M. Reed, E.M. Gray, D. Lewis, L.W. Oring, R. Coleman, T. Burr, P. Luscomb
1999, The Wilson Bulletin (111) 478-487
We studied chick growth and plumage patterns in the endangered Hawaiian Stilt (Himantopus mexicanus knudseni). Body mass of captive chicks closely fit a Gompertz growth curve, revealing a growth coefficient (K) of 0.065 day-1 and point of inflection (T) of 17 days. When chicks fledged about 28 days after hatching,...
Galileo's Multiinstrument Spectral View of Europa's Surface Composition
F. P. Fanale, J. C. Granahan, T. B. McCord, G. Hansen, C. A. Hibbitts, R. Carlson, D. Matson, A. Ocampo, L. Kamp, W. Smythe, F. Leader, R. Mehlman, R. Greeley, R. Sullivan, P. Geissler, C. Barth, A. Hendrix, B. Clark, P. Helfenstein, J. Veverka, M. J. S. Belton, K. Becker, T. Becker
1999, Icarus (139) 179-188
We have combined spectral reflectance data from the Solid State Imaging (SSI) experiment, the Near-Infrared Mapping Spectrometer (NIMS), and the Ultraviolet Spectrometer (UVS) in an attempt to determine the composition and implied genesis of non-H2O components in the optical surface of Europa. We have considered four terrains: (1) the "dark...
Age and thermal history of the Geysers plutonic complex (felsite unit), Geysers geothermal field, California: A 40Ar/39Ar and U-Pb study
G. B. Dalrymple, M. Grove, O.M. Lovera, T.M. Harrison, J. B. Hulen, M. A. Lanphere
1999, Earth and Planetary Science Letters (173) 285-298
Sixty-nine ion microprobe spot analyses of zircons from four granite samples from the plutonic complex that underlies the Geysers geothermal field yield 207Pb/206Pb vs. 238U/206Pb concordia ages ranging from 1.13 ?? 0.04 Ma to 1.25 ?? 0.04 (1??) Ma. The weighted mean of the U/Pb model ages is 1.18 ??...
Extirpation and recolonization in a metapopulation of an endangered fish, the tidewater goby
K. D. Lafferty, C. C. Swift, R.F. Ambrose
1999, Conservation Biology (13) 1447-1453
The tidewater goby ( Eucyclogobius newberryi ), an endangered species in the United States, occurs in a series of isolated coastal wetlands in California. Using historical presence-absence data and our own surveys, we estimated annual rates of extirpation and recolonization for several populations of the goby in southern California. As predicted, large...
Letters: Defending whole animal collections
N.J. Scott Jr., M.R. Jennings
1999, BioScience (49) 511-512
No abstract available. ...
Dissolved sulfide distributions in the water column and sediment pore waters of the Santa Barbara Basin
J.S. Kuwabara, A. VanGeen, D.C. McCorkle, J.M. Bernhard
1999, Geochimica et Cosmochimica Acta (63) 2199-2209
Dissolved sulfide concentrations in the water column and in sediment pore waters were measured by square-wave voltammetry (nanomolar detection limit) during three cruises to the Santa Barbara Basin in February 1995, November–December 1995, and April 1997. In the water column, sulfide concentrations measured outside...
Reexamining fire suppression impacts on brushland fire regimes
Jon E. Keeley, C. J. Fotheringham, Marco Morais
1999, Science (284) 1829-1832
California shrubland wildfires are increasingly destructive, and it is widely held that the problem has been intensified by fire suppression, leading to larger, more intense wildfires. However, analysis of the California Statewide Fire History Database shows that, since 1910, fire frequency and area burned have not declined, and fire size...
Regional variability of slope stability: Application to the Eel margin, California
H. Lee, J. Locat, P. Dartnell, K. Israel, Wong Florence
1999, Marine Geology (154) 305-321
Relative values of downslope driving forces and sediment resisting forces determine the locations of submarine slope failures. Both of these vary regionally, and their impact can be addressed when the data are organized in a Geographic Information System (GIS). The study area on the continental margin near the Eel River...
Chemical composition and geologic history of saline waters in Aux Vases and Cypress Formations, Illinois Basin
I. Demir, B. Seyler
1999, Aquatic Geochemistry (5) 281-311
Seventy-six samples of formation waters were collected from oil wells producing from the Aux Vases or Cypress Formations in the Illinois Basin. Forty core samples of the reservoir rocks were also collected from the two formations. Analyses of the samples indicated that the total dissolved solids content (TDS) of the...
Subcutaneous anchor attachment increases retention of radio transmitters on Xantus' and marbled murrelets
Scott H. Newman, John Y. Takekawa, Darrell L. Whitworth, Esther E. Burkett
1999, Journal of Field Ornithology (70) 520-534
We modified a subcutaneous anchor attachment and achieved transmitter reten- tion times that exceeded those reported previously for other attachments used on alcids. Traditional suture and epoxy attachment methods were used on Xantus' Murrelets in 1995 and 1996, while the modified attachment was used for Xantus' Murrelets in 1996 and...
Effects of migration distance on whole-body and tissue-specific energy use American shad (Alosa sapidissima)
J. B. K. Leonard, S. D. McCormick
1999, Canadian Journal of Fisheries and Aquatic Sciences (56) 1159-1171
Discovery of a new Kittlitz's murrelet nest: Clues to habitat selection and nest-site fidelity
John F. Piatt, Nancy L. Naslund, Thomas I. van Pelt
1999, Northwestern Naturalist (80) 8-13
On 13 June 1993, a new Kittlitz's murrelet (Brachyramphus brevirostris) nest was discovered near Red Mountain on the Kenai Peninsula, Alaska. The nest was on a 22° slope at about 900 m elevation with a northeast aspect, and contained a 60.2 × 40.6 mm egg that weighed 49.0 g. Downy...
Quality characteristics of coal beds in the Gulf Coast Province
S.S. Crowley, Peter D. Warwick, John R. SanFilipo, S.J. Law, Claire E. Aubourg, Jason C. Willett
1999, Conference Paper, The proceedings of the 24th international technical conference on coal utilization and fuel systems
No abstract available....
Coal geology of the U.S. gulf coastal region
Peter D. Warwick, Claire E. Aubourg, S.S. Crowley, S.M. Nichols, Steven M. Podwysocki, John R. SanFilipo, R. E. Thomas, C.J. Watt, Jason C. Willett
1999, Conference Paper, The proceedings of the 24th international technical conference on coal utilization and fuel systems
No abstract available....
Rank enhancement of Permian Barakar and Raniganj coal measures in the western part of the Sohagpur coalfield, Madhya Pradesh, India
Peter D. Warwick, Robert C. Milici, Abhijit Mukhopadhyay, Siri Adhikari
Shiao Hung Chian, editor(s)
1999, Conference Paper, Coal energy and the environment: Proceedings of the sixteenth annual international Pittsburgh coal conference
No abstract available....
Geologic and climatic controls on the formation of the Permian coal measures in the Sohagpur Coal Field, Madhya Pradesh, India
Robert C. Milici, Peter D. Warwick, Abhijit Mukhopadhyay, Siri Adhikari, S.P. Roy, Sudip Bhattacharyya
Shiao Hung Chian, editor(s)
1999, Conference Paper, Coal energy and the environment: Proceedings of the sixteenth annual international Pittsburgh coal conference
No abstract available....
Radar remote sensing of wetlands
Elijah Ramsey III
1999, Book chapter, Remote sensing change detection
No abstract available....
Geochronologic and isotope studies of calcite and silica constraining Quaternary unsaturated- and saturated zone hydrologic flux at Yucca Mountain, Nevada, USA
James B. Paces, Zell E. Peterman, Leonid A. Neymark, Joseph F. Whelan, Brian D. Marshall
1999, Conference Paper, Use of hydrogeochemical information in testing groundwater flow models: Technical summary and proceedings of a workshop
Both unsaturated- and saturated-zone aqueous solutions are capable of precipitating secondary mineral deposits that document the history and origins of past water flux. Calcite and opal occur as thin coatings on open fractures and cavity floors within the thick unsaturated zone at Yucca Mountain. Outermost surfaces of calcite have 14C ages...
