Major Land Resource Areas (MLRA)
Adapted from U.S. Soil Conservation Service
1970, Report
This is a polygon coverage of the Land Resource Regions and Major Land Resource Areas of the conterminous United States. Land resource regions are geographic areas that are characterized by a particular pattern of soils, climate, water resources and land uses. (USDA, Soil Conservation Service, 1981). Major land...
Lunar theory and processes: Discussion of chemical analysis
R. A. Phinney, D. E. Gault, J. A. O’Keefe, J. B. Adams, G. P. Kuiper, H. Masursky, E.M. Shoemaker, R. J. Collins
1970, Icarus (12) 213-223
No abstract available....
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...
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...
Approved procedure for determining absence of infectious pancreatic necrosis (IPN) virus in certain fish and fish products
D.P. Amend, G. Wedemeyer
1970, Fish Disease Leaflet 27
No abstract available at this time...
Low-flow characteristics of Iowa streams through 1966
A.J. Heinitz
1970, Iowa Natural Resources Council Bulletin 10
No abstract available....
Comparative toxicity of 29 nitrosalicylanilides and related compounds to eight species of fish
L. L. Marking, W. A. Willford
1970, Investigations in Fish Control 37
Abstract not submitted to date...
Trends in fishery management of the Great Lakes
Stanford H. Smith
1970, Special Publication 7
Some hope is returning for recovery of the fish stocks of the Great Lakes, which have been outstanding examples of abuse although they are the world's largest and most valuable freshwater fishery resource. The lakes and the fish in them have been under complete jurisdiction of sovereign nations and...
A hermaphroditic coregonine from Lake Michigan
Thomas A. Edsall
1970, Transactions of the American Fisheries Society (99) 611 p.
Hermaphroditism is relatively rare among the Salmonidae (See Atz, 1964 for a comprehensive review) and has never been reported for coregonine fishes. Recent examination of a collection of coregonines at the Great Lakes Fishery Laboratory disclosed a hermaphroditic bloater(Coregonus hoyi). The fish was captured in a gill net...
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...
[Book review] Problems in systematics of parasites, edited by Gerald D. Schmidt
G. L. Hoffman
1970, American Scientist (58) 337-338
Review of: Problems in systematics of parasites. American Association for the Advancement of Science. Edited by Gerald D. Schmidt. University Park Press, 1969. 131 pages....
[Book review] Aspects of fish parasitology, edited by Angela E. R. Taylor and R. Muller
G. L. Hoffman
1970, Journal of Fish Biology (2) 385-386
Review of: Aspects of Fish Parasitology. Edited by Angela E. R. Taylor and R. Muller. SYMPOSIA OF THE BRITISH SOCIETY FOR PARASITOLOGY. Vol. 8....
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°....
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...
North American Paleontological Convention
E. L. Yochelson
1970, Science (167) 398-400
No abstract available....
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...
Some investigations of the deposition of travertine from Hot Springs-I. The isotopic chemistry of a travertine-depositing spring
I. Friedman
1970, Geochimica et Cosmochimica Acta (34) 1303-1315
The isotopic compositions of the travertine and of the hot spring solutions were studied at Main Springs and New Highland Terrace in the Mammoth Hot Springs area of Yellowstone Park. The springs issue at 74°C and a pH of 6.65 and the carbon isotopic composition of the travertine depositing at...
Determination of niobium in rocks by an isotope dilution spectrophotometric method
L. P. Greenland, E.Y. Campbell
1970, Analytica Chimica Acta (49) 109-114
Rocks and minerals are fused with sodium peroxide in the presence of carrierfree 95Nb. The fusion cake is leached with water and the precipitate dissolved in hydrofluoric-sulfuric acid mixture. Niobium is extracted into methyl isobutyl ketone and further purified by ion exchange. The amount of niobium...
Latitudinal gradients in tertiary molluscan faunas of the Pacific coast
W.O. Addicott
1970, Palaeogeography, Palaeoclimatology, Palaeoecology (8) 287-312
Tertiary molluscan faunas of the middle latitudes of the marginal eastern North Pacific are characterized by warm-water taxa whose descendants now live in more southerly latitudes. A series of profiles in which cumulative percentages of warm-water faunal elements are plotted against latitude show progressive northward decreases in the percentage of...
Fugacity of H2O from 0° to 350°C at the liquid-vapor equilibrium and at 1 atmosphere
John L. Hass Jr.
1970, Geochimica et Cosmochimica Acta (34) 929-932
The fugacity and fugacity coefficient of H2O at the liquid-vapor equilibrium, the fugacity and the Gibbs free energy of formation of H2O at 1 atm (1.01325 bars) total pressure have been calculated from published data on the physical and thermodynamic properties of H2O and are presented at ten-degree intervals from...
Immunization of fishes: A review
S. F. Snieszko
1970, Journal of Wildlife Diseases (6) 24-30
Immune response in fishes, which are ectothermic animals, depends on temperature. The optimum response is at the optimum temperature for the species. It is, however, slower in coldwater fishes, such as salmonids, and faster in warmwater fishes.Serum of fishes contains proteins very similar, but not identical, with those of mammals....
Lunar theory and processes: Post-sunset horizon "afterglow"
D. E. Gault, J. B. Adams, R. J. Collins, G. P. Kuiper, J. A. O’Keefe, R. A. Phinney, E.M. Shoemaker
1970, Icarus (12) 230-232
No abstract available....
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...
Bioresources of shallow water environments
P. E. Greeson
1970, Science (170) 355-356
No abstract available....
Oral immunization of salmonids: a review
G.W. Klontz, D. P. Anderson
1970, Diseases of Fishes and Shellfishes (5) 16-20
No abstract available ...
