Gas-liquid chromatographic determination of Bayer 73 in fish, aquatic invertebrates, mud, and water
C.W. Luhning, P.D. Harman, J.B. Sills, V. K. Dawson, J. L. Allen
1979, Journal of the Association of Official Analytical Chemists (62) 1141-1145
A gas-liquid chromatographic (GLC) method is described for determining residues of Bayer 73 (2-aminoethanol salt of 2’,5-dichloro-4’-nitrosalicylanilide) in fish muscle, aquatic invertebrates, mud, and water by analyzing for 2-chloro-4-nitroaniline (CNA), a hydrolysis product of Bayer 73. Bayer 73 residues are extracted from fish muscle tissue, invertebrates, and mud with acetone-formic...
Estimating nest success: The Mayfield method and an alternative
Douglas H. Johnson
1979, The Auk (96) 651-661
Mayfield's method for calculating the success of a group of nests is examined in detail. The standard error of his estimator is developed. Mayfield's assumption that destroyed nests are at risk until the midpoint of the interval between visits leads to bias if nests are visited infrequently. A remedy is...
A new instrument system to investigate sediment dynamics on continental shelves
D.A. Cacchione, D.E. Drake
1979, Marine Geology (30) 299-312
A new instrumented tripod, the GEOPROBE system, has been constructed and used to collect time-series data on physical and geological parameters that are important in bottom sediment dynamics on continental shelves. Simultaneous in situ digital recording of pressure, temperature, light scattering, and light transmission, in combination with current velocity profiles...
Modeling and optimizing a gas-water reservoir: Enhanced recovery with waterflooding
M.E. Johnson, E.A. Monash, M.S. Waterman
1979, Journal of the International Association for Mathematical Geology (11) 63-74
Accepted practice dictates that waterflooding of gas reservoirs should commence, if ever, only when the reservoir pressure has declined to the minimum production pressure. Analytical proof of this hypothesis has yet to appear in the literature however. This paper considers a model for a gas-water reservoir with a variable production...
Concentrations of metals in very small volumes of soil solution
T. Hinkley
1979, Nature (277) 444-446
A new method of sampling very small amounts of soil solution (0.3 g) shows that soil solutions contain high concentrations and unusual proportions of metals. In the soils studied, the solution is close in both metal proportions and total metal mass to what may be taken up annually by the...
Temperature calibration of amino acid racemization: Age implications for the Yuha skeleton
J. L. Bischoff, W.M. Childers
1979, Earth and Planetary Science Letters (45) 172-180
D/L of aspartic acid ranged from 0.52 to 0.56 for femur samples of the Yuha skeleton. Subsurface temperature measurements made at the burial site indicate average annual temperature is 18°C and diagenetic temperature is 21.6°C. These data and a relation derived for...
Chemical composition of Mars
J. W. Morgan, E. Anders
1979, Geochimica et Cosmochimica Acta (43) 1601-1610
The composition of Mars has been calculated from the cosmochemical model of Ganapathy and Anders (1974) which assumes that planets and chondrites underwent the same 4 fractionation processes in the solar nebula. Because elements of similar volatility stay together in these processes, only 4 index elements (U, Fe, K and Tl or...
Vesicularity and CO2 in mid-ocean ridge basalt
James G. Moore
1979, Nature (282) 250-253
Vesicles and included CO2 are enriched in deep-sea basalts that are also enriched in light rare earth and incompatible elements. This enrichment probably results from a unique deep mantle origin of such melts but may have been modified by CO2 bubbles rising in shallow magma chambers....
Diagenetic changes in the elemental composition of unrecrystallized mollusk shells
P.C. Ragland, O. H. Pilkey, B. W. Blackwelder
1979, Chemical Geology (25) 123-134
The Mg, Sr, Mn, Fe, Na and K contents were determined for 230 apparently unrecrystallized mollusk shells (gastropods and bivalves) ranging in age from late Cretaceous to Holocene. Consistent differences between the Holocene and fossil shells with respect to concentrations of all these elements are attributed to postburial diagenetic changes....
Arsenic and fluoride in the upper madison river system: Firehole and gibbon rivers and their tributaries, yellowstone national park, wyoming, and southeast montana
J. M. Thompson
1979, Environmental Geology (3) 13-21
Chemical analyses of 21 water samples from the Firehole and Gibbon Rivers, which combine to form the Madison River, gave arsenic and fluoride values above the Environmental Protection Agency Interim Primary Drinking Water maximum contaminant levels (0.05 mg/l arsenic and 2.0 mg/l fluoride). On 18 October, 1975, during a period...
Improved signal discrimination in tectonomagnetism: Discovery of a volcanomagnetic effect at Kilauea, Hawaii
P.M. Davis, F.D. Stacey, C.J. Zablocki, J.V. Olson
1979, Physics of the Earth and Planetary Interiors (19) 331-336
Cancellation of extraterrestrial magnetic disturbances by taking simple differences between total field readings at spaced stations is imperfect. It is shown that improvement is possible when three component observatory data are available from a single station in the general, but not necessarily immediate, vicinity of an array of total field...
Beach-cusp formation
A. H. Sallenger Jr.
1979, Marine Geology (29) 23-37
Field experiments on beach-cusp formation were undertaken to document how the cuspate form develops and to test the edge-wave hypothesis on the uniform spacing of cusps. These involved observations of cusps forming from an initially plane foreshore. The cuspate form was observed to be a product of swash modification of an...
Amino acid racemization dating of fossil bones, I. inter-laboratory comparison of racemization measurements
J.L. Bada, E. Hoopes, D. Darling, G. Dungworth, H.J. Kessels, K.A. Kvenvolden, D.J. Blunt
1979, Earth and Planetary Science Letters (43) 265-268
Enantiomeric measurements for aspartic acid, glutamic acid, and alanine in twenty-one different fossil bone samples have been carried out by three different laboratories using different analytical methods. These inter-laboratory comparisons demonstrate that D/L aspartic acid measurements are highly reproducible, whereas the enantiomeric measurements...
Pattern drilling exploration: Optimum pattern types and hole spacings when searching for elliptical shaped targets
L.J. Drew
1979, Journal of the International Association for Mathematical Geology (11) 223-254
In this study the selection of the optimum type of drilling pattern to be used when exploring for elliptical shaped targets is examined. The rhombic pattern is optimal when the targets are known to have a preferred orientation. Situations can also be found where a rectangular pattern is as efficient...
International cooperation in water resources
J.R. Jones, R.M. Beall, E.V. Giusti
1979, GeoJournal (3) 481-487
Advancements in hydrology proceeded slowly until the late 1800's when new ventures created a surge of interest and accomplishment. Progress waned again until the middle 20th century when an International Hydrological Decade was conceived, eventually receiving wide multinational support from governmental agencies and nongovernmental institutions. Organized by UNESCO, the Decade...
Aquifer coefficients determined from multiple well effects, Fernandina Beach, Florida
C.B. Bentley
1979, Groundwater (17) 525-531
On September 30, 1977, a large industrial plant in Fernandina Beach, Florida, shut down six artesian wells that had been pumping continuously for several weeks from the Floridan aquifer. Two wells continued pumping until November 20, 1977, at which time the shutdown wells were restarted....
Seismic gaps and source zones of recent large earthquakes in coastal Peru
J. W. Dewey, W. Spence
1979, Pure and Applied Geophysics PAGEOPH (117) 1148-1171
The earthquakes of central coastal Peru occur principally in two distinct zones of shallow earthquake activity that are inland of and parallel to the axis of the Peru Trench. The interface-thrust (IT) zone includes the great thrust-fault earthquakes of 17 October 1966 and 3 October 1974. The coastal-plate interior (CPI)...
Four-dimensional modeling of recent vertical movements in the area of the southern California uplift
Petr Vanicek, Michael R. Elliot, Robert O. Castle
1979, Tectonophysics (52) 287-300
This paper describes an analytical technique that utilizes scattered geodetic relevelings and tide-gauge records to portray Recent vertical crustal movements that may have been characterized by spasmodic changes in velocity. The technique is based on the fitting of a time-varying algebraic surface of prescribed degree to the geodetic data treated...
Rare earth abundances and Rb-Sr systematics of basalts, gabbro, anorthosite and minor granitic rocks from the Indian Ocean Ridge System, Western Indian Ocean
C. E. Hedge, K. Futa, C.G. Engel, R.L. Fisher
1979, Contributions to Mineralogy and Petrology (68) 373-376
Basalts dredged from the Mid-Indian Ocean Ridge System have rare earth, Rb, and Sr concentrations like those from other mid-ocean ridges, but have slightly higher Sr87/Sr86 ratios. Underlying gabbroic complexes are similar to the basalts in Sr87/Sr86, but are poorer K, Rb, and in rare earths. The chemical and isotopic...
A large submarine sand-rubble flow on kilauea volcano, hawaii
D.J. Fornari, J.G. Moore, L. Calk
1979, Journal of Volcanology and Geothermal Research (5) 239-256
Papa'u seamount on the south submarine slope of Kilauea volcano is a large landslide about 19 km long, 6 km wide, and up to 1 km thick with a volume of about 39 km3. Dredge hauls, remote camera photographs, and submersible observations indicate that it is composed primarily of unconsolidated...
Tufted Puffins nesting in estuarine habitat
Robert E. Gill Jr., Gerald A. Sanger
1979, The Auk (96) 792-794
The Tufted Puffin (Lunda cirrhata) apparently has the most extensive breeding distribution of any North Pacific seabird, extending in the western North Pacific from Hokkaido to the north Chukotsk Peninsula on the Chukchi Sea, and in North America from Cape Lisburne on the Chukchi Sea, south to the Farallon Islands...
Distribution and status of marine birds breeding along the coasts of the Chukchi and Bering seas
James C. Bartonek, S.G. Sealy
1979, Research Report 11
The Alaska coast fronting on the Chukchi and Bering seas, exclusive of the Aleutian Islands, supports seven complexes of marine bird colonies numbering more than 1 million birds each, nine colonies of 100,000 to almost 1 million birds, and many smaller colonies. Colonies are found on most headlands and islands...
[Book review] Role of the wolf in a deer decline in the Superior National Forest, by L. David Mech and Patrick D. Karns
R. J. Greenwood
1979, Prairie Naturalist (11) 64-64
Review of: Role of the Wolf in a Deer Decline in the Superior National Forest. Volume 148 of USDA Forest Service Research Paper. L. David Mech and Patrick D. Karns. North Central Forest Experiment Station, Forest Service, United States Department of Agriculture, 1977. 23 pages....
Physiological and biochemical aspects of ozone toxicity to rainbow trout (Salmo gairdneri)
Gary A. Wedemeyer, Nancy C. Nelson, William T. Yasutake
1979, Journal of the Fisheries Research Board of Canada (36) 605-614
An acute toxicity curve for dissolved ozone (O3) in soft water at 10 °C, using 10–13-cm rainbow trout (Salmo gairdneri) as the test species was calculated. The 96-h LC50 (95%, confidence interval) was 9.3 (8.1–10.6) μg/L. The lethal threshold level was about 8 μg/L mandating that a conservative margin of safety be...
Geomagnetic paleointensities by the Thelliers' method from submarine pillow basalts: Effects of seafloor weathering
Sherman Gromme, Edward A. Mankinen, Monte Marshall, Robert S. Coe
1979, Journal of Geophysical Research B: Solid Earth (84) 3553-3575
Measurements of geomagnetic paleointensity using the Thelliers' double‐heating method in vacuum have been made on 10 specimens of submarine pillow basalt obtained from 7 fragments dredged from localities 700,000 years old or younger. In the magnetic minerals, the titanium/iron ratio parameter x and the cation deficiency (oxidation) parameter x were determined by X‐ray diffraction...
