An outbreak of streptococcosis in eared grebes (Podiceps nigricollis)
Wayne I. Jensen
1979, Avian Diseases (23) 543-546
An outbreak of streptococcosis (Streptococcus zooepidemicus), apparently the first recorded in wild birds, killed an estimated 7,500 eared grebes (Podiceps nigricollis) on Great Salt Lake (Utah) in November and December, 1977. Ducks and gulls feeding in the same area were unaffected....
PCBs and DDE in commercial fish feeds
Michael J. Mac, L.W. Nicholson, C.A. McCauley
1979, Progressive Fish-Culturist (41) 210-211
Three commercial fish feeds were analyzed for PCBs and p,p' DDE and were reported in dry weight concentrations. In various sizes of Oregon Moist Pellets, concentrations of PCBs ranged from less than 0.10 to 0.30 I?g/g and those of p,p' DDE from less than 0.01 to 0.47 I?g/g. In Silver...
Chemical and physical characteristics of water in estuaries of Texas, October 1973-September 1974
W.B. Lind, Karl W. Ratzlaff
1979, Texas Department of Water Resources Report 231
No abstract available....
Records of ground-water recharge and discharge for the Edwards aquifer in the San Antonio area, Texas, 1934-77
R.W. Maclay, R. A. Rappmund
1979, Edwards Underground Water District Bulletin 37
No abstract available....
Disequilibrium in the 238uranium series in samples from Yeelirrie, Western Australia
R.S. Lively, R.S. Harmon, A. A. Levinson, C.J. Bland
1979, Journal of Geochemical Exploration (12) 57-65
Uranium-series disequilibrium studies carried out on samples from the Yeelirrie uranium deposit, Western Australia, indicate that uranium and radium have been migrating within the deposit during recent times, and are actually being removed from the deposit. Samples collected for 230Th/234U age dating were found to be substantially out of equilibrium,...
Methods of ultimate carbonaceous BOD determination
J. K. Stamer, S. W. McKenzie, R.N. Cherry
1979, Journal of the Water Pollution Control Federation (51) 918-925
Studies were conducted to provide an accurate and practical technique for determining the concentration of ultimate carbonaceous biochemical oxygen demand and the rate at which this demand is exerted. The three methods evaluated were carbon derived, nitrification adjusted, and nitrification inhibited. The studies indicate that comparable concentrations and reaction rates...
Preliminary geological mapping of Io
H. Masursky, G. G. Schaber, L.A. Soderblom, R.G. Strom
1979, Nature (280) 725-729
Terrain units and their global distribution on Io are summarised. A map of the complex region of Io is also presented. ?? 1979 Nature Publishing Group....
Modern marine sediments as a natural analog to the chemically stressed environment of a landfill
M.J. Baedecker, W. Back
1979, Journal of Hydrology (43) 393-414
Chemical reactions that occur in landfills are analogous to those reactions that occur in marine sediments. Lateral zonation of C, N, S, O, H, Fe and Mn species in landfills is similar to the vertical zonation of these species in marine sediments and results from the following reaction sequence: (1)...
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...
Geochemical evidence of drawdown in the Cerro Prieto geothermal field
A.H. Truesdell, M.A. Manon, S.M.E. Jimenez, A.A. Sanchez, L.J.J. Fausto
1979, Geothermics (8) 257-265
Some wells of the Cerro Prieto geothermal field have undergone changes in the chemistry of fluids produced which reflect reservoir processes. Pressure decreases due to production in the southeastern part of the field have produced both drawdown of lower chloride fluids from an overlying aquifer and boiling in the aquifer...
Probability weighted moments: Definition and relation to parameters of several distributions expressable in inverse form
J. Arthur Greenwood, J. Maciunas Landwehr, N.C. Matalas, J.R. Wallis
1979, Water Resources Research (15) 1049-1054
Distributions whose inverse forms are explicitly defined, such as Tukey's lambda, may present problems in deriving their parameters by more conventional means. Probability weighted moments are introduced and shown to be potentially useful in expressing the parameters of these distributions....
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...
Hydrology and water quality in the Nederlo Creek Basin, Wisconsin, before construction of two water-retention structures
Phil A. Kammerer Jr., Marvin G. Sherrill
1979, Water-Resources Investigations Report 79-95
The Nederlo Creek basin, in the "Driftless Area" of southwest Wisconsin, is geographically and hydrologically similar to other small basins in the area. Topography is rugged, with approximately 400 feet of relief between the boundary ridge tops and the valley floor. The water-retention structures (a dry floodwater- retention structure and...
Removal of contaminants from landfill leachates by filtration through glauconitic greensands
N. Spoljaric, W.A. Crawford
1979, Environmental Geology (2) 359-363
Passing landfill leachate through glauconitic greensand filters reduces the heavy metal cation content, lessens the unpleasant odor, and diminishes the murkiness of the leachate. The capability of the greensand to trap metal cations is increased by prolonging the contact time between the leachate and the greensand. Flushing the charged greensand...
Measured crustal deformation in Imperial Valley, California
B. E. Lofgren
1979, Geothermics (8) 267-272
Precise geodetic surveys since 1972 indicate that significant vertical deformation of the land surface continues in Imperial Valley, California. Measured vertical changes as great as 3-5 cm per year indicate that two types of tectonic movement are occurring: (1) a downward regional tilt of the valley surface from the Mexican...
Recent crustal movements in the Sierra Nevada-Walker lane region of California-Nevada: Part i, rate and style of deformation
D.B. Slemmons, D.V. Wormer, E.J. Bell, M.L. Silberman
1979, Tectonophysics (52) 561-570
This review of geological, seismological, geochronological and paleobotanical data is made to compare historic and geologic rates and styles of deformation of the Sierra Nevada and western Basin and Range Provinces. The main uplift of this region began about 17 m.y. ago, with slow uplift of the central Sierra Nevada...
On Chinese earthquake history - An attempt to model an incomplete data set by point process analysis
W.H.K. Lee, D.R. Brillinger
1979, Pure and Applied Geophysics PAGEOPH (117) 1229-1257
Since the 1950s, the Academia Sinica in Peking, People's Republic of China, has carried out extensive research on the Chinese earthquake history. With a historical record dating back some 3000 years, a wealth of information on Chinese earthquakes exists. Despite this monumental undertaking by the Academia Sinica, much work is...
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...
Geochemical surveys in the United States in relation to health.
H. A. Tourtelot
1979, Philosophical Transactions of the Royal Society B: Biological Sciences (288) 113-125
Geochemical surveys in relation to health may be classified as having one, two or three dimensions. One-dimensional surveys examine relations between concentrations of elements such as Pb in soils and other media and burdens of the same elements in humans, at a given time. The spatial distributions of element concentrations...
The thermal expansion of anhydrite to 1000° C
Howard T. Evans Jr.
1979, Physics and Chemistry of Minerals (4) 77-82
The thermal expansion of anhydrite, CaSO4, has been measured from 22° to 1,000° C by X-ray diffraction, using the Guinier-Lenné heating powder camera. The heating patterns were calibrated with Guinier-Hägg patterns at 25° C, using quartz as internal standard. Heating experiments were run on natural anhydrite (Bancroft, Ontario), which at...
Determination of nanogram amounts of bismuth in rocks by atomic absorption spectrometry with electrothermal atomization
Jean S. Kane
1979, Analytica Chimica Acta (106) 325-331
Bismuth concentrations as low as 10 ng g-1 in 100-mg samples of geological materials can be determined by atomic absorption spectrometry with electrothermal atomization. After HF—HClO4 decomposition of the sample, bismuth is extracted as the iodide into methyl isobutyl ketone and is then stripped with ethylenediaminetetraacetic acid into the aqueous phase. Aliquots...
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...
Petrology, composition, and age of intrusive rocks associated with the Quartz Hill molybdenite deposit, southeastern Alaska
T. Hudson, James G. Smith, Raymond L. Elliott
1979, Canadian Journal of Earth Sciences (16) 1805-1822
A large porphyry molybdenum deposit (Quartz Hill deposit) was recently discovered in the heart of the Coast Range batholithic complex about 70 km east of Ketchikan, southeastern Alaska. Intrusive rocks associated with the mineral deposit form two composite epizonal to hypabyssal stocks and many dikes in country rocks. The stocks are...
Geochemical and hydrologic considerations and the use of enthalpy-chloride diagrams in the prediction of underground conditions in hot-spring systems
R.O. Fournier
1979, Journal of Volcanology and Geothermal Research (5) 1-16
Thermal water ascending in a hot-spring system may cool by conduction of heat to the surrounding rock, by boiling, by mixing with cooler water, or by a combination of these processes. Complete or partial chemical reequilibration may occur as a result of this cooling. In spite of these complexities, in...
Some basic considerations in the design of hydrologic data networks
Marshall E. Moss
1979, Water Resources Research (15) 1673-1676
Two preeminent considerations of data network design are the random nature of the hydrologic phenomena and the uses that will be made of the data. Information distilled from the data is usually measured in a parametric statistical sense, although the data user is more concerned with the integrated measure of...
