Groundwater inflow measurements in wetland systems
Randy J. Hunt, David P. Krabbenhoft, Mary P. Anderson
1996, Water Resources Research (32) 495-507
Our current understanding of wetlands is insufficient to assess the effects of past and future wetland loss. While knowledge of wetland hydrology is crucial, groundwater flows are often neglected or uncertain. In this paper, groundwater inflows were estimated in wetlands in southwestern Wisconsin using traditional Darcy's law calculations and three...
The atomic arrangement of iimoriite-(Y), Y2(SiO4)(CO3)
J.M. Hughes, E.E. Foord, J. Jai-Nhuknan, J.M. Bell
1996, Canadian Mineralogist (34) 817-820
Iimoriite-(Y) from Bokan Mountain, Prince of Wales Island, Alaska has been studied using single-crystal X-ray-diffraction techniques. The mineral, ideally Y2(SiO4)(CO3), crystallizes in space group P1, with a 6.5495(13), b 6.6291(14), c 6.4395(11)A??, ?? 116.364(15), ?? 92.556(15) and ?? 95.506(17)??. The atomic arrangement has been solved and refined to an R...
A high-performance liquid chromatography-based screening method for the analysis of atrazine, alachlor, and ten of their transformation products
B. R. Schroyer, P. D. Capel
1996, ACS Symposium Series (630) 34-42
A high-performance liquid chromatography (HPLC) method is presented for the for the fast, quantitative analysis of the target analytes in water and in low organic-carbon, sandy soils that are known to be contaminated with the parent herbicides. Speed and ease of sample preparation was prioritized above minimizing detection limits. Soil...
Late Pliocene diatoms in a diatomite from Prydz Bay, East Antarctica
A.D. Mahood, J.A. Barron
1996, Micropaleontology (42) 285-302
Very well-preserved Pliocene diatoms from a diatomite unit interbedded within glacial sediments at Ocean Drilling Program Site 742 in Prydz Bay, Antarctica are documented and illustrated. The presence of Thalassiosira kolbei, T. torokina, Actinocyclus actinochilus, A. karstenii and the absence of Nitzschia interfrigidaria. T. insigna and T. vulnifica in Sample...
Characteristics of the 1 km AVHRR data set for North America
Z.-L. Zhu, L. Yang
1996, International Journal of Remote Sensing (17) 1915-1924
The North America portion of a new global 1 km AVHRR time-series dataset was produced recently by the U.S. Geological Survey, EROS Data Center. Characteristics of the dataset were evaluated for scan-angle distribution, image area distortion as the result of map projection, distribution of high solar zenith angle, and cloud...
Recent volcanism in the Siqueiros transform fault: Picritic basalts and implications for MORB magma genesis
M.R. Perfit, D.J. Fornari, W.I. Ridley, P.D. Kirk, John F. Casey, K.A. Kastens, J.R. Reynolds, M. Edwards, D. Desonie, R. Shuster, S. Paradis
1996, Earth and Planetary Science Letters (141) 91-108
Small constructional volcanic landforms and very fresh-looking lava flows are present along one of the inferred active strike-slip faults that connect two small spreading centers (A and B) in the western portion of the Siqueiros transform domain. The most primitive lavas (picritic and olivine-phyric basalts), exclusively recovered from the young-looking...
Neotropical migratory bird monitoring study at Marine Corps Base Camp Pendleton, California. Second annual progress report, 1996
B.E. Kus
1996, Report
No abstract available at this time...
Late Paleocene Arctic Ocean shallow-marine temperatures from mollusc stable isotopes
Karen L. Bice, Michael A. Arthur, Louie Marincovich Jr.
1996, Paleoceanography (11) 241-249
Late Paleocene high-latitude (80°N) Arctic Ocean shallow-marine temperatures are estimated from molluscan δ18O time series. Sampling of individual growth increments of two specimens of the bivalve Camptochlamys alaskensis provides a high-resolution record of shell stable isotope composition. The heavy carbon isotopic values of the specimens support a late Paleocene age...
Deep-sea ostracode shell chemistry (Mg:Ca ratios) and late Quaternary Arctic Ocean history
T. M. Cronin, Gary S. Dwyer, P.A. Baker, J. Rodriguez-Lazaro, W. M. Briggs Jr.
Andrews J.T.et al, editor(s)
1996, Geological Society Special Publication (111) 117-134
The magnesium:calcium (Mg:Ca) and strontium:calcium (Sr:Ca) ratios were investigated in shells of the benthic ostracode genus Krithe obtained from 64 core-tops from water depths of 73 to 4411 m in the Arctic Ocean and Nordic seas to determine the potential of ostracode shell chemistry for palaeoceanographic study. Shells from the...
Status of the least Bell's vireo and southwestern willow flycatcher at Marine Corps Base Camp Pendleton, 1995
B.E. Kus
1996, Report
No abstract available at this time...
Selected aspects of the ecology of the Arizona ridge-nosed rattlesnake (Crotalus willardi willardi) and the banded rock rattlesnake (Crotalus lepidus klauberi) in Arizona. Report to AGFD Heritage Program, Phoenix
H.K. McCrystal, C.R. Schwalbe, D.F. Retes
1996, Report
No abstract available at this time...
Bullfrog impacts on sensitive wetland herpetofauna and Herpetology of San Bernardino National Wildlife Refuge
P.C. Rosen, C.R. Schwalbe
1996, Report
No abstract available at this time...
Final report on coastal sage scrub amphibian and reptile autecology study
T. J. Case, Robert N. Fisher
1996, Report
No abstract available at this time...
Summary of proposed endangered plant data collected on Santa Rosa Island by National Biological Survey staff and collaborators, 1994-1996
A. Kathryn McEachern
1996, Report
No abstract available at this time...
Identification of organic compounds in the water of a fish culture system
J. Bonzo, D. C. Honeyfield
1996, Conference Paper, New York Academy of Sciences, Science Research Training Program, Journal of Abstracts
No abstract available at this time...
[Book Review] J.P. Riley, R. Chester (Eds.) SEAREX: The sea/air exchange program, a review with comments on recovery of data, from large earth-science research programs, chemical oceanography, Vol. 10, Academic Press (1989), 404p., US $48.00 (ISBN 0-12-588610-1)
F.T. Manheim
1996, Geochimica et Cosmochimica Acta (60) 5160-5163
No abstract available....
The geologic story of the Ocoee River : see the river -- see the rapids -- see the rocks!
Water Resources Division, U.S. Geological Survey, U.S. Forest Service, Tennessee River Valley Authority
1996, Report
Serum factors as indicators of environmental stress: optimization of methodologies for striped bass
V. S. Blazer, D.L. Higginbotham, J.W. Fournie
J.S. Stolen, T.C. Fletcher, D. P. Anderson, J.T. Zelikoff, L.E. Twerdok, S.L. Kaattari, C.C. Bayne, editor(s)
1996, Book chapter, Modulators of Fish Immune Responses: Volume 1, Models for Environmental Toxicology, Biomarkers, Immunostimulators
No abstract available at this time...
Chemistry and potential mutagenicity of humic substances in waters from different watersheds in Britain and Ireland
B.E. Watt, Ronald L. Malcolm, M.H.B. Hayes, N.W.E. Clark, J.K. Chipman
1996, Water Research (30) 1502-1516
Humic substances are amorphous organic macromolecules responsible for the hue of natural waters. They are also known to be precursors of mutagens formed on chlorination prior to distribution of drinking water. In this study humic substances from the waters of primary streams, from major rivers, and from reservoirs were isolated...
Simple method for the measurement of the hydrogenotrophic methanogenic activity of anaerobic sludges
J.D. Coates, M.F. Coughlan, E. Colleran
1996, Journal of Microbiological Methods (26) 237-246
The specific hydrogenotrophic activity of anaerobic sludges is usually assayed by gas chromatographic analysis for methane in the headspace of sealed test vials. Gas is sampled with a pressure lock syringe which allows quantification independent of the pressure prevailing in the vials. An alternative method was developed using pressure transducer...
Residence time of water discharging from the Hanging Gardens of Zion Park
B. A. Kimball, P.K. Christensen
1996, Water Resources Bulletin (32) 531-540
The Hanging Gardens are a unique feature of Zion National Park. Knowledge of the source and residence time of water discharging from the Hanging Gardens is necessary to help preserve these features. Ground-water chemical and isotopic data distinguish the discharge from seeps and springs into two groups, one of low...
Osmium isotopes and silver as tracers of anthropogenic metals in sediments from Massachusetts and Cape Cod bays
G.E. Ravizza, Michael H. Bothner
1996, Geochimica et Cosmochimica Acta (60) 2753-2763
High concentrations of osmium (Os) and silver (Ag) and low 187Os/186Os ratios in Boston sewage make these elements sensitive tracers of the influence of sewage on marine sediments in Massachusetts and Cape Cod bays. Pristine marine sediments have Ag concentrations more than 200 times lower than sewage sludge, Os concentrations...
Mobility of 2,2',5,5'-tetrachlorobiphenyl in model systems containing bottom sediments and water from the lower Fox River, Wisconsin
J. F. Elder, R.V. James, J. J. Steuer
1996, Journal of Great Lakes Research (22) 697-706
Sediment-water partitioning and diffusive transport of 2,2’,5,5’-tetrachlorobiphenyl, PCB congener IUPAC #52 (TCB52) were examined in laboratory experiments with sediments from two sites in the lower Fox River, Wisconsin. Native water was pumped at controlled flow rates through cells containing sediments amended...
Control of the European Green Crab in California: Detection of Natural Enemies. Final Report to Saltonstall-Kennedy. Grant Number: NA46FDO493
A. M. Kuris, K. D. Lafferty, M.E. Torchin
1996, Report
No abstract available at this time...
Use of precipitation and groundwater isotopes to interpret regional hydrology on a tropical volcanic island: Kilauea volcano area, Hawaii
M. A. Scholl, S. E. Ingebritsen, C. J. Janik, J. P. Kauahikaua
1996, Water Resources Research (32) 3525-3537
Isotope tracer methods were used to determine flow paths, recharge areas, and relative age for groundwater in the Kilauea volcano area of the Island of Hawaii. A network of up to 66 precipitation collectors was emplaced in the study area and sampled twice yearly for a 3-year period. Stable isotopes...
