Celso Puente
1971, Edwards Underground Water District Bulletin 26
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateJames C. Wright, Warren I. Finch
1971, Open-File Report 71-333
This annotated bibliography was prepared by Warren I. Finch from a rough copy compiled by the late James C. Wright in either late 1967 or early 1968 as an aid to his understanding of the stratigraphic distribution of uranium deposits in Triassic rocks of the Southern high Plains. He did...
Olcott Gates, Howard Adorno Powers, Ray E. Wilcox, John P. Schafer
1971, Bulletin 1028-U
No abstract available....
Charles W. Luhning, Paul D. Harman
1971, Journal of the Fisheries Research Board of Canada (28) 113-115
Large variations in concentrations of M.S. 222 (tricaine methanesulfonate) and quinaldine (2-methylquinoline) residues occurred in various areas of fish fillets. Residue analyses of replicate samples from homogenized fillets yielded more representative results than samples cut from various areas of fillets....
Paul W. Davis, Gary A. Wedemeyer
1971, Comparative Biochemistry and Physiology, Part B: Comparative Biochemistry (40) 823-827
1. The Na+, K+-activated, Mg2+-dependent-ATPase enzyme system in a heavy microsomal fraction of rainbow trout (Salmo gairdneri) brain was inhibited in vitro by chlorinated hydrocarbon pesticides.2. T50 (concentration at 50 per cent inhibition) values for dicofol, endosulfan and DDT were <span class="formulatext stixSupport mathImg" title="Click to view...
James H. Selgeby
1971, Transactions of the American Fisheries Society (100) 590-591
Since benthological samples collected with dredges are usually too large to be preserved in toto, a washing method must be employed to reduce the sample volume without losing or damaging the organisms. Traditionally, the sample is washed in a sieve until the volume is small enough for convenient handling...
William I. Aron, Stanford H. Smith
1971, Science (174) 13-20
Through a combination of ecosystem homeostasis and the perversity of man and nature, oftentimes the significant biological changes effected by environmental modifications are not detected until long after the initial change has taken place. The immediate impact, which may range from the spectacular to the undetectable, is a deceptive measure...
T. T. Chao, J.W. Ball, H. M. Nakagawa
1971, Analytica Chimica Acta (54) 77-81
A useful method for the determination of silver in soil, sediment, and rock samples in geochemical exploration has been developed. The sample is digested with concentrated nitric acid, and the silver extracted with triisooctyl thiophosphate (TOTP) in methyl isobutyl ketone (MIBK) after dilution of the...
F. E. Senftle, H.D. Moore, D.B. Leep, A. El-Kady, D. Duffey
1971, Nuclear Instruments and Methods (93) 425-459
A table of the analytical sensitivities of the principal lines in the thermal neutron capture gamma-ray spectrum from 0 to 3 MeV has been compiled for most of the elements. A tabulation of the full-energy, single-escape, and double-escape peaks has also been made...
J. R. O’Neil, I. Barnes
1971, Geochimica et Cosmochimica Acta (35) 687-697
All carbonates associated with the ultramafic rocks and serpentinites of the western United States are shown by their stable isotope ratios to be of near-surface, low-temperature origin. These include vein materials that have been previously classified as hydrothermal. New laboratory and natural data...
D.M. Hopkins, J.V. Matthews, J. A. Wolfe, M.L. Silberman
1971, Palaeogeography, Palaeoclimatology, Palaeoecology (9) 211-231
A flood-plain forest has been preserved beneath a lava flow that invaded the Inmachuk River Valley in the northern part of the Seward Peninsula, Alaska, during the Pliocene Epoch. The fossil flora is of great biogeographic interest because of its position (Fig. 1)...
A. Cox
1971, Earth and Planetary Science Letters (11) 152-160
Isla San Cristobal, the most easterly of the Galapagos Islands, consists of two parts: a large volcano constitutes the southwest half of the island and an irregular apron of small cones and flows makes up the northeast half. As some of the...
K. Wolf, M. C. Quimby
1971, Archiv Fur Die Gesamte Virusforschung (34) 144-156
Epizootics occurred among young trout in France, and the behavior and symptoms suggested infectious pancreatic necrosis (IPN) virus. Specimens preserved in glycerol were sent to the U.S.A. for virological examination. Virus was isolated from four of five lots, but neutralization with antiserum against ATCC VR299 strain IPN virus was incomplete....
R. E. Lennon
1971, American Fishes and U.S. Trout News (16) 8-10
Abstract has not been submitted...
C. E. Hedge
1971, Geochimica et Cosmochimica Acta (35) 522-524
New analyses of high-alumina basalts reveal an average nickel content higher than previously indicated. Ni in high-alumina basalts correlates with magnesium in the same way as it does in other basalt types. There is therefore no reason, based on Ni contents, to hypothesize...
David A. Brew, Mackenzie Gordon Jr.
1971, Professional Paper 661
No abstract available....
Lynn Glover
1971, Professional Paper 636
No abstract available....
Barney J. Szabo, J. G. Vedder
1971, Earth and Planetary Science Letters (11) 283-290
Analyses of uranium isotopes and their long-lived daughter products showed evidence of uranium migration in most of the 22 fossil mollusk shell samples from marine terrace deposits in southern California. Two samples, however, remained an ideal closed system as indicated by concordant230Th/234U...
W.I. Manton, M. Tatsumoto
1971, Earth and Planetary Science Letters (10) 217-226
Five nodules of eclogite, one nodule of garnet peridotite and one sample of kimberlite from the Roberts Victor mine were analyzed for concentrations of U, Th, Pb, Rb and Sr and isotopic compositions of Pb and Sr. In the eclogites, U content...
Louella E. Cable
Sidney Shapiro, editor(s)
1971, Book chapter, Our changing fisheries
Today's inland commercial fisheries are small independent operational units widely dispersed on lakes, impoundments, and streams throughout the vast central plains. The problems of the fisheries are diverse and unique to local conditions. Inland fisheries are particularly important to the Nation in times of international conflict because they...
R. E. Lennon
M.J. Walker, editor(s)
1971, Book chapter, Sport Fishing USA
Abstract not submitted to date...
Gary T. Sakagawa, Richard L. Pycha
1971, Journal of the Fisheries Research Board of Canada (28) 65-71
Scale samples collected in 1948 were used to estimate the instantaneous total mortality rate (0.70) and growth for lake trout (Salvelinus namaycush) in Lake Superior before the population had been significantly reduced by the sea lamprey (Petromyzon marinus). Indirect evidence indicates that the instantaneous natural mortality rate was probably 0.10–0.25....
Carl A. Posey, editor(s)
1971, Earthquake Information Bulletin (USGS) (3) 26-27
No abstract available....
C. S. Grommé, R. L. Hay
1971, Earth and Planetary Science Letters (10) 179-185
New data show that the Olduvai normal geomagnetic polarity event is represented in Olduvai Gorge, Tanzania, by rocks covering a time span of roughly from 0.1 to 0.2 my and is no older than 2.0 my. Hence the long normal polarity event...
H. G. Wilshire, L. C. Calk, E.C. Schwarzman
1971, Earth and Planetary Science Letters (10) 281-284
Paragasitic amphibole, occurring interstitially and as veins in peridotite inclusions in basanite, has reacted with the host basanite to form kaersutitic amphibole. The amphibole compositions vary with respect to distance from the edge of the xenolith; iron, titanium, and potassium contents are...