Water-quality data for the Flaming Gorge Reservoir area, Utah and Wyoming
R. J. Madison
1970, Utah Basic-Data Release 20
In October 1966, the U.S. Geological Survey began a reconnaissance study of water quality in Flaming Gorge Reservoir. The purpose of this study was to determine the load of dissolved ions in the reservoir, the changes in chemical quality of the water as a result of initial leaching and subsequent...
Quality of surface water in the Bear River basin, Utah, Wyoming and Idaho
K.M. Waddell
1970, Utah Basic-Data Release 18
Water-quality data have been collected intermittently at several sites in the Bear River basin since 1947. Because the Bear River flows through three States - Utah, Wyoming, and Idaho - water-quality programs have been confined for the most part within State boundaries. In 1967, the U.S. Geological Survey, as a...
Resource crises in Lake Erie
Wilbur L. Hartman
1970, Explorer (12) 6-11
Despite the tremendous value of the Great Lakes, a malaise is seriously destroying their worth. Accelerated enrichment, unabated pollution, over-exploitation, and accidental and intentional introduction of exotic species, have all been guided--more often misguided--by man. Of all five Great Lakes, Lake Erie stands out as the one most...
Testing of selected pharmacological agents for capturing waterfowl [Annual Progress Report]
D.R. Cline
1970, Report
The response of game-farm mallards (Frost strain) to seven pharmacological immobilizing agents was evaluated in Phase I of a planned four-phase study. A limited amount of testing was also done with wild mallards. Single dosages were administered to determine the mean effective dose (ED50) and mean lethal dose (LD50), The...
Extreme female predominance in the bloater (Coregonus hoyi) of Lake Michigan in the 1960's
Edward H. Brown Jr.
C.C. Lindsey, C.S. Woods, editor(s)
1970, Book chapter, Biology of coregonid fishes
The sex composition and other biological characteristics of the bloater changed substantially during recent decades of continuous ecological change in Lake Michigan. The percentages of females increased from 72% of the bloaters samples in 1928-32 to 95% in 1963, and ranged from 94 to 97% in 1964-69. The unusual predominance...
Effects of oil development in Arctic America
J. C. Reed
1970, Biological Conservation (2) 273-277
Large and important discoveries of petroleum were made in northern Alaska in 1968. The reserves were estimated then to be perhaps as much as ten thousand million barrels. Subsequent exploration has shown the resources to be much greater than was estimated earlier. Many...
Winds over saltcedar
T. E. A. Van Hylckama
1970, Agricultural Meteorology (7) 217-233
An analysis of hourly wind speeds above and within a stand of saltcedar near Buckeye, Arizona, reveals that in 90% of all observed cases, the wind profiles above the stand can be represented by the simple logarithmic equation: uz=u*k1n">uz=u*k1n (zz0)">zz0) where...
Strontium isotopes in some Cenozoic lavas from Oregon and Washington
C. E. Hedge, R.A. Hildreth, W.T. Henderson
1970, Earth and Planetary Science Letters (8) 434-438
The87Sr/86Sr ratios have been determined in 22 volcanic rocks from Oregon and Washington. The emphasis of the study was on andesites and dacites, but several basalts were included. Most of the samples have a very limited range in strontium isotopic composition...
Strontium isotopes in Quaternary basalts of southeastern California
Z. E. Peterman, I. S. E. Carmichael, A. L. Smith
1970, Earth and Planetary Science Letters (7) 381-384
Strontium isotopic variations (87Sr/86Sr of 0.7029 to 0.7052) in Quaternary basalts of southeastern California, USA, are not readily explained by assimilation of crustal material similar to that contained as xenoliths in the basalt. Isotopic differences between chrome diopside (0.7016) and olivine...
Jurassic (callovian) paleotemperatures from Scotland
F.C. Tan, J.D. Hudson, M.L. Keith
1970, Earth and Planetary Science Letters (9) 421-426
Isotopic paleotemperature analyses of belemnites and ammonites from the Belemnite Sands and Oxford Clay of Staffin Bay, Isle of Skye, are presented. Ammonites are depleted in18O compared with co-existing belemnites, which give mean temperatures of around 22°C, consistent with the Skye belemnite...
Cummingtonite: A reversible, nonquenchable transition from P21/m to C2/m symmetry
C.T. Prewitt, J. J. Papike, M. Ross
1970, Earth and Planetary Science Letters (8) 448-450
Cummingtonite from the Gouverneur, New York, talc district (Sample No. U.S.N.M. 115046) with the composition, (Ca0.36Na0.06Mn0.96Mg0.57) Mg5Si8O22 (OH)2, unit cell parametersa = 9.550 ± 0.001, b = 18.007 ± 0.003, c = 5.298 ± 0.001Å, β = 102°39′ ± 1′, and space...
Paleomagnetic secular variation study of lavas from the Massif central, France
Richard R. Doell
1970, Earth and Planetary Science Letters (8) 352-362
The angular standard deviation of virtual geomagnetic poles determined from a paleomagnetic study of 31 Brunhes-age lava flows from France has been obtained. The value, referred to the axial dipole (geographic axis), is 15.2° with 95% confidence limits of 18.4° and 12.9°....
Caldera collapse in the Galápagos Islands, 1968
T. Simkin, K. A. Howard
1970, Science (169) 429-437
The summit caldera of Isla Fernandina, a large, uninhabited basaltic shield volcano, was further enlarged by 1 to 2 km3 in June 1968. A small quake and large vapor cloud on 11 June were followed 4 hours later by a remarkable volcanic ash cloud and, after another hour, by a...
Lunar radar mapping: Correlation between radar reflectivity and stratigraphy in north-western mare imbrium
G. G. Schaber, R. E. Eggleton, T.W. Thompson
1970, Nature (226) 1236-1239
DELAY-DOPPLER radar maps of the Moon obtained with the 430 MHz (70 cm wavelength) radar of the Arecibo Ionospheric Observatory in Puerto Rico (Thompson, unpublished) are at present being studied to correlate geological information with the radar reflexion characteristics of the lunar surface. Preliminary evaluation of...
Geothermal resources of the northern gulf of Mexico basin
P.H. Jones
1970, Geothermics (2) 14-26
Published geothermal gradient maps for the northern Gulf of Mexico basin indicate little or no potential for the development of geothermal resources. Results of deep drilling, from 4000 to 7000 meters or more, during the past decade however, define very sharp increases in geothermal gradient which are associated with the...
Neutron radiative capture methods for surface elemental analysis
J.I. Trombka, F. Senftle, R. Schmadebeck
1970, Nuclear Instruments and Methods (87) 37-43
Both an accelerator and a 252Cf neutron source have been used to induce characteristic gamma radiation from extended soil samples. To demonstrate the method, measurements of the neutron-induced radiative capture and activation gamma rays have been made with both Ge(Li) and NaI(Tl) detectors, Because...
Static and kinetic friction of granite at high normal stress
J.D. Byerlee
1970, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (7) 577-582
Frictional sliding on ground surfaces of granite, angle of sliding planes 30° and 45°, was investigated as a function of confining pressure. Over the normal stress range of 2–12 kb, the static frictional shear stress τs follows the relationship τs = 0·5 + 0· σn and the kinetic frictional...
Chemical indicators of subsurface temperature applied to hot spring waters of Yellowstone National Park, Wyoming, U.S.A.
R.O. Fournier, A.H. Truesdell
1970, Geothermics (2) 529-535
Under favorable conditions the chemistry of hot springs may give reliable indications of subsurface temperatures and circulation patterns. These chemical indicators can be classified by the type of process involved:IndicatorDominant ProcessThe silica...
Television experiment for Mariner Mars 1971
H. Masursky, R. Batson, W. Borgeson, M. Carr, J. McCauley, D. Milton, R. Wildey, D. Wilhelms, B. Murray, N. Horowitz, R. Leighton, R. Sharp, W. Thompson, G. Briggs, P. Chandeysson, E. Shipley, C. Sagan, J. Pollack, J. Lederberg, E. Levinthal, W. Hartmann, T. McCord, B. Smith, M. Davies, G. De Vaucouleurs, C. Leovy
1970, Icarus (12) 10-45
The Television Experiment objectives are to provide imaging data which will complement previously gathered data and extend our knowledge of Mars. The two types of investigations will be fixed-feature (for mapping) and variable-feature (for surface and atmospheric changes). Two cameras with a factor-of-ten difference in resolution will be used on...
Isotopic investigations of xenoliths and host basalts from the Honolulu volcanic series
J. R. O’Neil, C. E. Hedge, E.D. Jackson
1970, Earth and Planetary Science Letters (8) 253-257
Oxygen, carbon and strontium isotope ratios point to a ground-water origin for the carbonates found in Hawaiian Volcanic Series rocks. Strontium isotope ratios in the xenoliths and host basalts indicate a genetic relationship between them....
Isotopic composition of strontium in sea water throughout Phanerozoic time
Z. E. Peterman, C. E. Hedge, H. A. Tourtelot
1970, Geochimica et Cosmochimica Acta (34) 105-120
Isotopic analyses of strontium in primary fossil carbonate reveal significant variations in Sr87Sr86">Sr87Sr86 of sea water during the Phanerozoic. The strontium isotopic composition may have been uniform from the Ordovician through the Mississippian, with an average Sr87Sr86">Sr87Sr86 of 0.7078. A subsequent decrease...
Salmonid viruses: Double infection of RTG-2 cells with Egtved and infectious pancreatic necrosis viruses
K. Wolf, P. E. Vestergard Jorgensen
1970, Archiv Fur Die Gesamte Virusforschung (29) 337-342
Egtved and infectious pancreatic necrosis (IPN) viruses were applied at high multiplicity alone and in combination to RTG-2 cells in liquid medium. Procedures were used which selectively suppressed one or the other virus, and the yields were determined after 64 hours at 15°C. The viruses showed an increase of 280...
The determination of low levels of cobalt-60 in environmental waters by liquid scintillation counting
H.C. Claassen
1970, Analytica Chimica Acta (52) 229-235
A method for determination of cobalt-60 in waters at levels greater than 0.5 pCi per sample is presented. A modification of the method may be used to analyze fluvial sediments and soils. After the cobalt has been separated, first as the hydroxide and then as...
The demography of the lizard, Uta stansburiana Baird and Girard, in southern Nevada
F.B. Turner, G.A. Hoddenbach, P.A. Medica, J.R. Lannom
1970, Journal of Animal Ecology (39) 505-519
Between 1966 and 1967 populations of Uta stansburiana in southern Nevada increased about 40%. Over the next year they declined by about 50%. These changes are explained in terms of annual differences in fecundity and survival. Most females laid five clutches of...
Occurrence of whirling disease of trout in western United States
H. Wolf, W. T. Yasutake
1970, Journal of the Fisheries Research Board of Canada (27) 955-956
Whirling disease of trout, caused by Myxosoma cerebralis, was diagnosed in 1966 for the first time in rainbow trout (Salmo gairdneri) from California and Nevada hatcheries. In 1969 the first incidence of this disease in cutthroat trout (S. clarki) was reported in Nevada. To date these have been the only confirmed cases...
