A summary of water-resources activities of the U.S. Geological Survey in Iowa, fiscal year 1994
R.C. Buchmiller
1994, Open-File Report 94-88
Water-resources programs and activities of the U.S. Geological Survey in Iowa consist principally of hydrologic data collection and investigative studies that address water-resource issues. The work is supported by direct Federal funding, by transfer of funds from other Federal agencies, and by joint-funding agreements with State or local agencies. The Iowa...
Discovery of Grooves on Gaspra
J. Veverka, P. Thomas, D. Simonelli, M. J. S. Belton, M. Carr, C. Chapman, M. E. Davies, R. Greeley, R. Greenberg, J. Head, K. Klaasen, T. V. Johnson, D. Morrison, G. Neukum
1994, Icarus (107) 72-83
We report the discovery of grooves in Galileo high-resolution images of Gaspra. These features, previously seen only on Mars' satellite Phobos, are most likely related to severe impacts. Grooves on Gaspra occur as linear and pitted depressions, typically 100-200 m wide, 0.8 to 2.5 km long, and 10-20 m deep....
The Sundance Fault; a newly recognized shear zone at Yucca Mountain, Nevada
R.W. Spengler, C.A. Braun, L.G. Martin, C.W. Weisenberg
1994, Open-File Report 94-49
Rice seed toxicity tests for organic and inorganic substances
W. Wang
1994, Environmental Monitoring and Assessment (29) 101-107
Plant seed toxicity tests can be used to evaluate hazardous waste sites and to assess toxicity of complex effluents and industrial chemicals. Conventional plant seed toxicity tests are performed using culture dishes containing filter paper. Some reports indicate that filter papers might interfere with the toxicity of inorganic substances. In...
Codicil to the geophysical expression of selected mineral deposit models
W. D. Heran, editor(s)
1994, Open-File Report 94-174
Bioconcentration of 5,5′,6 -trichlorobiphenyl and pentachlorophenol in the midge, Chironomus riparius, as measured by a pharmacokinetic model
M.J. Lydy, W. L. Hayton, A.E. Staubus, S.W. Fisher
1994, Archives of Environmental Contamination and Toxicology (26) 251-256
A two compartment pharmacokinetic model was developed which describes the uptake and elimination of 5,5′,6-trichlorobiphenyl (TCB) and pentachlorophenol (PCP) in the midge, Chironomus riparius. C. riparius were exposed to nominal TCB (2 μg L−1) and PCP (9 μg L−1) concentrations during a 16 h static uptake phase. Depuration was determined over approximately...
Composition and origin of hydrothermal ironstones from central Pacific seamounts
J.R. Hein, Y. Hsueh-Wen, S.H. Gunn, A. E. Gibbs, W. Chung-ho
1994, Geochimica et Cosmochimica Acta (58) 179-189
Ironstones recovered from five Late Cretaceous seamounts in the central Pacific region probably formed during late-stage edifice-building volcanism. Ironstones are dense and compact with the appearance of brown chert. The ironstones are characterized by a goethite mineralogy with FeOOH contents up to 88%, extreme fractionation of Fe and Mn, low...
Identification of tundra land cover near Teschekpuk Lake, Alaska using SPOT satellite data
Carl J. Markon, Dirk V. Derksen
1994, Arctic (47) 222-231
Tundra vegetation in the Teshekpuk Lake area of the Alaskan Arctic Coastal Plain was mapped to assess distribution and abundance of waterfowl habitats. Three SPOT satellite scenes were acquired and registered to a 20 m Universal Transverse Mercator grid. Two clustering techniques were used to develop statistical parameters by...
The hydrogeologic framework and geochemistry of the Columbia Plateau aquifer system, Washington, Oregon, and Idaho
K. J. Whiteman, J. J. Vaccaro, J. B. Gonthier, H. H. Bauer
1994, Professional Paper 1413-B
No abstract available....
Relationships between data from Rock-Eval pyrolysis and proximate, ultimate, petrographic, and physical analyses of 142 diverse U.S. coal samples
Neely Bostick, Ted A. Daws
1994, Organic Geochemistry (21) 35-49
Basic research on coal and oil shale led to automated pyrolysis analysis of petroleum source rocks; most widely used is the Rock-Eval equipment. In order to interpret Rock-Eval analyses in relation to traditional coal data, we analyzed 142 commercial coals with diverse rank, age, maceral and sulfur contents, for most...
Design of Manning's-roughness-coefficient study in New York State
William F. Coon
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Field-collected hydraulic data can be used to compute roughness coefficients for channels with different hydraulic characteristics. Suggested criteria for the design of a roughness-coefficient study include: (1) location of the study reach close to an established streamflow-monitoring site with a stable high-flow stage-to-discharge relation; (2) uniform hydraulic conditions within, and...
Crude-oil spill research project near Bemidji, Minnesota - Bibliography, 1984-1994
S. E. Smith, M. F. Hult
1994, Open-File Report 93-373
The U.S. Geological Survey began a research project at the site of a crude-oil spill near Bemidji, Minnesota in 1983. The project is part of the U.S. Geological Survey's Toxic Substances Hydrology Program. The objectives of research at the site are to obtain an understanding of the mobilization, transport, and...
Analytical results from a greenhouse study of sagebrush grown in soils containing Carlin ore
K. C. Stewart, D. M. McKown, D.L. Fey
1994, Open-File Report 94-237
Assessment of shoreline vegetation in relation to use by molting black brant Branta bernicla nigricans on the Alaska Coastal Plain
Milton W. Weller, K. C. Jensen, Eric J. Taylor, Mark W. Miller, Karen S. Bollinger, Dirk V. Derksen, Daniel Esler, Carl J. Markon
1994, Biological Conservation (70) 219-225
To evaluate the importance of large thaw lakes on the Alaska Coastal Plain for molting Pacific black brant Branta bernicla nigricans, distribution and life form of shoreline vegetation were assessed using several scales: satellite imagery, point-intercept transects, cover quadrats, and a parameter for water regime. Brant population and distribution estimates...
Work in progress in the Pacific Northwest National Earthquake Hazards Reduction Program fiscal year 1994
C.S. Weaver
1994, Open-File Report 94-154
Environmental contaminants in redheads wintering in coastal Louisiana and Texas
T.C. Michot, T. W. Custer, A.J. Nault, C. A. Mitchell
1994, Archives of Environmental Contamination and Toxicology (26) 425-434
Whole body and liver analyses indicated that wintering redheads (Aythya americana; n = 70) in coastal Louisiana (one site) and Texas (two sites) were relatively free of contamination with common trace elements, organochlorines, and hydrocarbons. Most trace elements, including As, Cr, Hg, Mg, Mn, Ni, Pb, Se, Sr,...
Use of electronarcosis to immobilize juvenile and adult northern pike
M.K. Walker, E.A. Yanke, W.H. Gingerich
1994, Progressive Fish-Culturist (56) 237-243
Electronarcosis, the immobilization of a fish after an electric current has been applied and discontinued, is a potential alternative to chemical anesthetics. Successful narcosis was defined as the immobilization of a fish for 1–15 min without causing physical damage. In the laboratory, AC successfully narcotized juvenile (13–19‐cm standard length, SL)...
Characteristics of selected strong-motion records from the October 18, 1989, Loma Prieta, California, earthquake and the November-December 1985 Nahanni, Northwest Territories, Canada, earthquakes
W. K. Smith
1994, Open-File Report 94-139
Geoenvironmental models of mineral deposits, and geology-based mineral-environmental assessments of public lands
G.S. Plumlee, K. S. Smith, W. H. Ficklin
1994, Open-File Report 94-203
Instrumentation, methods, and preliminary evaluation of evapotranspiration for a grassland in the Arid Lands Ecology Reserve, Benton County, Washington, May-October 1990
S. A. Tomlinson
1994, Water-Resources Investigations Report 93-4081
The report describes instrumentation, methods, and preliminary results for a study on evapo- transpiration at a grassland in Snively Basin of the Arid Lands Ecology Reserve. Instrumentation was used to collect data from May 30 to October 15, 1990. A combination of the Bowen-ratio and Penman-Monteith methods was used to...
Estimated water use in Ohio, 1990; reservoir evaporation data
R.M. Timmons
1994, Open-File Report 94-48
Database of Newmark displacements, Arias intensities, and Dobry durations for selected horizontal-component strong-motion records
W. K. Smith
1994, Open-File Report 94-248
Effects of water temperature and pH on toxicity of terbufos, trichlorfon, 4-nitrophenol and 2,4-dinitrophenol to the amphipod Gammarus pseudolimnaeus and rainbow trout (Oncorhynchus mykiss)
G.E. Howe, L. L. Marking, T.D. Bills, J.J. Rach, F.L. Mayer Jr.
1994, Environmental Toxicology and Chemistry (13) 51-66
Acute toxicity tests were conducted to determine (a) the individual and interactive effects of water temperature (7, 12, 17°C), pH (6 5, 7 5, 8 5, 9 5), and time on the toxicity of terbufos, trichlorfon, 4 nitrophenol, and 2,4-dinitrophenol to rainbow trout (Oncorhynchus mykiss) and the amphipod Gammarus pseudohmnaeus, and...
Effects of water temperature on the toxicity of 4-nitrophenol and 2,4-dinitrophenol to developing rainbow trout (Oncorhynchus mykiss)
G.E. Howe, L. L. Marking, T.D. Bills, M.A. Boogaard, F.L. Mayer Jr.
1994, Environmental Toxicology and Chemistry (13) 79-84
Early-life-stage (ELS) toxicity tests were conducted to determine the effect of selected water temperatures on the toxicity of 4-nitrophenol and 2,4-dinitrophenol to rainbow trout (Oncorhynchus mykiss). NOECs were determined for growth and mortality at selected time intervals and water temperatures of 7, 12, and 17°C. As tests progressed, NOECs leveled...
Wave data in Mobile Bay, Alabama from March 1991 to May 1992
S.L. Pendygraft, G.R. Gelfenbaum
1994, Open-File Report 94-17
