Organic tissues, graphite, and hydrocarbons in host rocks of the Rum Jungle Uranium Field, northern Australia
C.B. Foster, E. I. Robbins, Y. Bone
1990, Ore Geology Reviews (5) 509-523
The Rum Jungle Uranium field consists of at least six early Proterozoic deposits that have been mined either for uranium and/or the associated base and precious metals. Organic matter in the host rocks of the Whites Formation and Coomalie Dolomite is now predominantly graphite, consistent with the metamorphic history of...
Comment on "The surface of lo: A new model" by Bruce Hapke
A. S. McEwen, J. I. Lunine
1990, Icarus (84) 268-274
Hapke (1989, Icarus 79, 56–74) proposed that the surface of Io is dominantly basaltic with thin coatings of polysulfur oxide, S2O, ad SO,2. However, observations and models of the active volcanism indicate that volatiles such as sulfur and SO2 must be more abundant than envisioned by Hapke....
Ouachitas need more exploratory drilling
Neil H. Suneson, Jock A. Campbell
1990, Oil & Gas Journal (88) 65-69
The Ouachita Mountains in southeastern Oklahoma and western Arkansas are part of a mostly buried late Paleozoic fold and thrust belt that extends from Alabama to northern Mexico. The principal hydrocarbon reservoirs in the Ouachita tectonic province can be subdivided into those that produce natural gas from shallow-water units and...
Radium and radon in Charlotte Harbor Estuary, Florida
R. L. Miller, T. F. Kraemer, B. F. McPherson
1990, Estuarine, Coastal and Shelf Science (31) 439-457
Radium-226 and 222Rn activities are greater in the estuarine waters of northern Charlotte Harbor and the lower tidal Peace and Myakka Rivers, Florida, than in either the freshwater reaches of the rivers or waters of the lower estuary and the Gulf of Mexico. The activity of 226Ra in the tidal rivers increases...
Uranium-series ages of marine terraces, La Paz Peninsula, Baja California Sur, Mexico
L. Sirkin, Barney J. Szabo, G.A. Padilla, S.A. Pedrin, E.R. Diaz
1990, Coral Reefs (9) 25-30
Uranium-series dating of coral samples from raised marine terrace deposits between 1.5 and 10 m above sea level in the La Paz Peninsula area, Baja California Sur, yielded ages between 123 ka and 138 ka that are in agreement with previously reported results. The stratigraphy and ages of marine units...
Carbon monoxide detection of chemisorbed oxygen in coal and other carbonaceous materials
C.C. Hinckley, T. Wiltowski, T. Wiltowska, D.W. Ellison, R.H. Shiley, L. Wu
1990, Fuel (69) 103-109
The oxidation of carbon monoxide by mildly oxidized and devolatilized coal samples was studied thermogravimetrically. The oxidation was attributed to oxygen chemisorbed on inorganic components of the coals. The reaction of CO with pyrite producing carbonyl sulphide, OCS, accompanied the oxidation. A mechanism for CO oxidation is proposed in which...
UPb ages of zircon rims: A new analytical method using the air-abrasion technique
J. N. Aleinikoff, D.L. Winegarden, M. Walters
1990, Chemical Geology: Isotope Geoscience Section (80) 351-363
We present a new technique for directly dating, by conventional techniques, the rims of zircons. Several circumstances, such as a xenocrystic or inherited component in igneous zircon and metamorphic overgrowths on igneous cores, can result in grains with physically distinct age components. Pneumatic abrasion has been previously shown by Krogh...
Techniques for noise removal and registration of TIMS data
S. Hummer-Miller
1990, Photogrammetric Engineering and Remote Sensing (56) 49-53
Extracting subtle differences from highly correlated thermal infrared aircraft data is possible with appropriate noise filters, constructed and applied in the spatial frequency domain. This paper discusses a heuristic approach to designing noise filters for removing high- and low-spatial frequency striping and banding. Techniques for registering thermal infrared aircraft data...
Ground-water levels, flow, and specific conductance in unconsolidated aquifers near Lake Erie, Cleveland to Conneaut, Ohio, September 1984
A. W. Coen III
1990, Water-Resources Investigations Report 89-4202
This report described ground-water levels, flow, and specific conductance in aquifer along the southern shore of Lake Erie from Cleveland to Conneaut, Ohio. The data were collected in September 1984 as part of the U.S Geological Survey's Northeast Glacial Buried Valley Regional Aquifer-System Analysis. The study area is about 60...
Occurrence and geochemistry of natural gases, Piceance Basin, northwest Colorado
Ronald C. Johnson, Dudley D. Rice
1990, American Association of Petroleum Geologists Bulletin (74) 805-829
The Piceance basin is a hydrocarbon-rich province that has natural gas production from reservoirs ranging in age from Late Jurassic to Eocene and large undeveloped resources of natural gas in coal beds and tight sandstone reservoirs of Cretaceous age. Gases from all producing intervals are of predominantly thermal origin and...
Removal of benzocaine from water by filtration with activated carbon
G.E. Howe, T.D. Bills, L. L. Marking
1990, Progressive Fish-Culturist (52) 32-35
Benzocaine is a promising candidate for registration with the U.S. Food and Drug Administration for use as an anesthetic in fish culture, management, and research. A method for the removal of benzocaine from hatchery effluents could speed registration of this drug by eliminating requirements for data on its residues, tolerances,...
Study indicates feather meal can be a good supplement in trout diets
S. Hughes
1990, Water Farming Journal (5) 16-16
Districts for 104th Congress
U.S. Bureau of the Census
1990, Report
This is a polygon coverage of 104th Congressional District boundaries obtained from the U.S. Bureau of the Census. The 103rd Congress was the first Congress that reflected the reapportionment and delineation of congressional districts based on the 1990 census. The next (104th) Congress reflects redelineation of districts that...
Quarterly Wildlife Mortality Report
K. A. Converse, R. Windingstad
1990, Supplement to the Journal of Wildlife Diseases (26)
Organochlorines, mercury, and selenium in wintering shorebirds from Washington and California
T. W. Custer, J.P. Myers
1990, California Fish and Game (76) 118-125
Dunlins Caldris alpina , and black-bellied plovers, Pluvialis squatarola , were collected in Washington and California during the winter of 1984-85; long-billed dowitchers, Limnodromus scolopaceus , were collected in California. Pooled breast muscles were analyzed for organochlorines and pooled livers for mercury and selenium. DDE was detected...
Use of fish corrals in the seine fishery of the Virgin Islands
Cecil A. Jennings
1990, Marine Fisheries Review (52) 18-19
Although selected aspects of the commercial fishery in the Virgin Islands have been documented since the early 1930's, fish corrals and their use have not been described. This account, based on personal observations made during 1985-86, summarizes commercial fishing methods in the Virgin Islands (U.S. and British),...
Immune response of mallard ducks treated with immunosuppressive agents: Antibody response to erythrocytes and in vivo response to phytohemagglutinin-P
C.S. Schrank, M.E. Cook, W. R. Hansen
1990, Journal of Wildlife Diseases (26) 307-315
The ability of two in vivo tests to assay immune competence of mallard ducks (Anas platyrhynchos) treated with various immunomodulatory agents was examined. Skin responses to phytohemagglutinin-P (PHA-P) injected intradermally and serum antibody levels produced in response to sheep red blood cells (SRBC)...
Enzyme leaching of surficial geochemical samples for detecting hydromorphic trace-element anomalies associated with precious-metal mineralized bedrock buried beneath glacial overburden in northern Minnesota
Robert J. Clark, A. L. Meier, G. Riddle
Hausen Donald M.Halbe Douglas N.Petersen Erich U.Tafuri William J., editor(s)
1990, Conference Paper
One objective of the International Falls and Roseau, Minnesota, CUSMAP projects was to develop a means of conducting regional-scale geochemical surveys in areas where bedrock is buried beneath complex glacially derived overburden. Partial analysis of B-horizon soils offered hope for detecting subtle hydromorphic trace-element dispersion patterns. An enzyme-based partial leach...
Quarterly Wildlife Mortality Report
K. A. Converse, C. Quist, R. Windingstad, L. Glaser
1990, Supplement to the Journal of Wildlife Diseases (26)
Physical factors and their influence on the mussel fauna of a main channel border habitat of the upper Mississippi River
L. E. Holland Bartels
1990, Journal of the North American Benthological Society (9) 327-335
The habitats of mussel species in a portion of the main stem of Navigation Pool 10 of the upper Mississippi River were examined. Population composition, abundance, and sediment and current preferences were measured at 186 sites in the East Channel of the...
Anomalous chloride flux discharges from Yellowstone National Park
I. Friedman, D. R. Norton
1990, Journal of Volcanology and Geothermal Research (42) 225-234
The chloride concentration of some thermal springs in and adjacent to Yellowstone National Park is constant through time although their discharge varies seasonally. As a result the chloride flux from these springs increases during periods of increased discharge. We believe that this is caused by changes in the height of...
Plant community structure in an oligohaline tidal marsh
J.S. Brewer, J.B. Grace
1990, Vegetatio (90) 93-107
An oligohaline tidal marsh on the northern shore of Lake Pontchartrain, LA was characterized with respect to the distributions and abundances of plant species over spatial and temporal gradients using Detrended Correspondence Analysis (DCA). In addition, the species distributions were correlated to several physical environmental factors using Detrended Canonical Correspondence...
Three-dimensional P and S velocity structure in the Coalinga Region, California
D. Eberhart-Phillips
1990, Journal of Geophysical Research Solid Earth (95) 15343-15363
The Coalinga earthquake sequence of 1983 provided a unique opportunity to perform a three-dimensional velocity and hypocenter inversion in an area of complex three-dimensional structure dominated by folding and blind thrusts. Additionally, since other varied geological and geophysical studies have been completed in this area, the three-dimensional inversion solution could...
Wildlife software: procedures for publication of computer software
M.D. Samuel
1990, Wildlife Society Bulletin (18) 360-360
Computers and computer software have become an integral part of the practice of wildlife science. Computers now play an important role in teaching, research, and management applications. Because of the specialized nature of wildlife problems, specific computer software is usually required to address a given problem (e.g., home range analysis)....
Seismic-wave attenuation associated with crustal faults in the New Madrid seismic zone
R. M. Hamilton, Walter D. Mooney
1990, Science (248) 351-354
The attenuation of upper crustal seismic waves that are refracted with a velocity of about 6 kilometers per second varies greatly among profiles in the area of the New Madrid seismic zone in the central Mississippi Valley. The waves that have the strongest attenuation pass through the seismic trend along...
