1973, Report
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Publication Extents
Not all publications have extents, not all extents are completely accurate1973, Report
1973, Report
1973, Report
1973, Report
W. J. Shampine
1973, Basin Planning Report ORB-6
M. H. Frimpter
1973, Basin Planning Report ARB-3
Wayne A. Willford, Robert J. Hesselberg, Harold L. Bergman
1973, Journal of the Association of Official Analytical Chemists (56) 1008-1014
Total mercury in a variety of substances is determined rapidly and precisely by direct sample combustion, collection of released mercury by amalgamation, and photometric measurement of mercury volatilized from the heated amalgam. Up to 0.2 g fish tissue is heated in a stream of O2 (1.2 L/min) for 3.5 min in...
F.L. Robison
1973, New York State Department of Environmental Conservation Report of Investigations RI-13
H.L. Shindel
1973, New York State Department of Environmental Conservation Report of Investigations RI-12
F.L. Robison
1973, New York State Department of Environmental Conservation Report of Investigations RI-14
M.D. Wood, S.S. Allen
1973, Nature (244) 213-215
VERIFICATIONS of tectonic concepts1 concerning seafloor spreading are emerging in a manner that has direct bearing on earthquake prediction. Although the gross pattern of worldwide seismicity contributed to the formulation of the plate tectonic hypothesis, it is the space-time characteristics of this seismicity that may contribute more...
C. J. Massoni, R.V. Fones, F.O. Simon
1973, Review of Scientific Instruments (44) 1350-1352
A gravity‐feed, pneumatic‐ejection sample changer has been developed. The changer is suitable for both flat and well‐type detectors and permits the continuous use of gamma‐ray spectroscopy equipment 24 h a day, 7 days a week. The electronic circuitry has a fail‐safe...
E. Roedder, P.W. Weiblen
1973, Nature (244) 210-212
THE “orange soil” from Shorty Crater differs greatly from ordinary lunar soils in that it consists of ∼99% 10–300 µm smooth shiny spherules and broken fragments of spherules of transparent orange glass, about 20% of which contain partly crystallized to opaque material. The remaining 1 %...
K.B. Armitage, B. Saxena, E.E. Angino
1973, Hydrobiologia (42) 295-333
The simultaneous and lag relationships between 27 environmental variables and seven population components of a perennial calanoid copepod were examined by simple and partial correlations and stepwise regression. The analyses consistently explained more than 70% of the variation of a population component. The multiple correlation coefficient (R) usually was highest...
F. Demirmen
1973, Journal of the International Association for Mathematical Geology (5) 285-296
A simple, semiobjective method is described to reduce the number of groups in a classification to an arbitrary level without losing contact with the geologic information contained in the evolving groups. The method, operated in a stepwise or cyclic manner, employs some of the commonly used numerical techniques, but avoids...
E-An Zen
1973, Contributions to Mineralogy and Petrology (39) 65-80
Reversed univariant hydrothermal phase-equilibrium reactions, in which a redox reaction occurs and is controlled by oxygen buffers, can be used to extract thermochemical data on minerals. The dominant gaseous species present, even for relatively oxidizing buffers such as the QFM buffer, are H2O and H2; the...
J.G. Moore, J.-G. Schilling
1973, Contributions to Mineralogy and Petrology (41) 105-118
Dredge hauls of fresh submarine basalt collected from the axis of the Reykjanes Ridge (Mid-Atlantic Ridge) south of Iceland were taken aboard R/ V TRIDENT in 1967 and 1971. The samples show systematic changes as the water depth of collection (and eruption) decreases: radially elongate vesicles and concentric zones of vesicles appear...
H.E. Clifton
1973, Helgoländer Wissenschaftliche Meeresuntersuchungen (24) 91-101
1. Reef organisms may play a major role in the transport and distribution of sediment on the sea floor adjacent to coral reefs. 2. Some fish such as Malacanthus plumieri (Bloch) selectively transport and collect certain types of sediment (such as larger coral and shell fragments). 3. The random movement...
R.A. Rowlett
1973, Maryland Birdlife (29) 88-102
During the winter of 1972-73, studies were conducted to determine the status and distribution of pelagic species of birds occurring at sea as far as 38 miles east of Ocean City, Md. The wintering off-shore avifauna was found to be impressively rich in variety of species and numbers of...
S.R. Wilbur
1973, Western Birds (4) 15-22
R. E. Tomlinson, R.L. Todd
1973, Condor (75) 177-183
During 1969 and 1970, surveys of the endangered Yuma Clapper Rail were conducted using taped calls to elicit responses from the birds. During the two summers, more than 158 Yuma clappers were located in cattailtule marshes along the Colorado River south of Needles, California, to the International Boundary, a distance...
C.S. Robbins
1973, American Birds (27) 672-673
C.S. Robbins
1973, American Birds (27) 965
L.F. Stickel, Stanley N. Wiemeyer, L. J. Blus
1973, Bulletin of Environmental Contamination and Toxicology (9) 193-196
Eggs of wild birds collected for the purpose of measuring concentrations of pesticides or other pollutants vary from nearly fresh to nearly dry so that objective comparisons cannot be made on the basis of weight of the contents at the time of collection. Residue concentrations in the nearly dry...