Oceanic ridges and transform faults: Their intersection angles and resistance to plate motion
A.H. Lachenbruch, G. A. Thompson
1972, Earth and Planetary Science Letters (15) 116-122
The persistent near-orthogonal pattern formed by oceanic ridges and transform faults defies explanation in terms of rigid plates because it probably depends on the energy associated with deformation. For passive spreading, it is likely that the ridges and transforms adjust to a...
Occurrence of chromian, hercynitic spinel ("pleonaste") in Apollo-14 samples and its petrologic implications
E. Roedder, P.W. Weiblen
1972, Earth and Planetary Science Letters (15) 376-402
Many isolated grains of a reddish pleonaste-type spinel occur in fines and metabreccia samples, particularly 14 319. Electron microprobe analyses (104) of spinels and their associated phases include 58 of pleonaste which show Mg/(Mg + Fe) 0.44–0.62 and Cr/(Cr + Al) 0.017–0.134...
Cheshire glass sand deposits in the Cheshire area, Massachusetts
Newton Earl Chute
1972, Open-File Report 72-68
A day and a half were spent on September 15 and 16, 1943 in a reconnaissance study of the old glass sand quarries in the Cheshire Quartzite near Cheshire, Massachusetts....
Annual summary of water quality data for selected sites in the Pacific Northwest, October 1971 to September 1972
U.S. Geological Survey Northwest Water Resources Data Center
1972, Report
Water resources data collected in the Pacific Northwest during the 1972 water year include chemical and physical characteristics of surface water. Data included in this report were collected by the Water Resources Division of the U.S. Geological Survey under the direction of the following district chiefs: H.K. Hall, Idaho; George...
The relation of periphytic and planktonic algal growth in an estuary to hydrographic factors
Eugene Brummer Welch, Richard M. Emery, Robert I. Matsuda, William A. Dawson
1972, Limnology and Oceanography (17) 731-737
No abstract available....
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1971
Celso Puente
1972, Edwards Underground Water District Bulletin 29
No abstract available....
An improved method for isolating viruses from asymptomatic carrier fish
Donald F. Amend, John P. Pietsch
1972, Transactions of the American Fisheries Society (101) 267-269
This paper describes a method using elevated levels of penicillin, streptomycin, and nystatin instead of filters to control bacteria and mold contaminants in specimens processed for virus isolation. Filters were shown to significantly reduce the virus concentration. Virus and tissue cultures were not affected by this procedure. In field tests...
The future of salmonid communities in the Laurentian Great Lakes
Stanford H. Smith
1972, Journal of the Fisheries Research Board of Canada (29) 951-957
The effects of human population growth, industrialization, and the introduction of marine fishes have reduced the suitability of each of the Great Lakes for oligotrophic fish communities. The ultimate consequence has been a reduction of fishery productivity that has ranged from extreme in Lake Ontario to moderate in Lake Superior....
Investigations of the lipopolysaccharide fractions from Aeromonas salmonicida smooth and rough forms
D. P. Anderson
1972, Conference Paper, Symposium on the major communicable diseases in Europe and their control
No abstract available ...
Factors of ecologic succession in oligotrophic fish communities of the Laurentian Great Lakes
Stanford H. Smith
1972, Journal of the Fisheries Research Board of Canada (29) 717-730
Oligotrophic fish communities of the Great Lakes have undergone successive disruptions since the mid-1800s. Major contributing factors have been intensive selective fisheries, extreme modification of the drainage, invasion of marine species, and progressive physical–chemical changes of the lake environments. Lake Ontario was the first to be affected as its basin...
Population biology of alewives, Alosa pseudoharengus, in Lake Michigan, 1949-70
Edward H. Brown Jr.
1972, Journal of the Fisheries Research Board of Canada (29) 477-500
Alewives were unknown in Lake Michigan before 1949, but became extremely abundant in the 1960s and soon exceeded the carrying capacity of the lake. In 1967 they were decimated by a lakewide mass mortality, and have since been less abundant as "adults" (≥120 mm long), although numerous young were produced in...
Stratigraphic nomenclature of Cambrian and Lower Ordovician rocks of easternmost southern Arizona and adjacent westernmost New Mexico
Philip Thayer Hayes
1972, Bulletin 1372-B
No abstract available....
Mixtures of malachite green and formalin for controlling Icthyophthirius and other protozoan parasites of fish
F. Leteux, Fred P. Meyer
1972, Progressive Fish-Culturist (34) 21-26
No abstract available. ...
Review of changing wildlife habitat and requirements for maintaining key species
H.W. Miller
1972, North Dakota Outdoors (35) 2-9
Abstract has not been submitted...
Bird mortality at four towers in eastern North Dakota--fall 1972
M.L. Avery, T. Clement
1972, Prairie Naturalist (4) 87-95
Abstract has not been submitted...
Records of precipitation, water levels, and ground-water recharge to the Edwards and associated limestones, San Antonio area, Texas, 1971
Celso Puente
1972, Edwards Underground Water District Bulletin 30
No abstract available....
Predation of schistosomiasis vector snails by ostracoda (crustacea)
I. G. Sohn, L.S. Kornicker
1972, Science (175) 1258-1259
An ostracod species of Cypretta is an effective predator in laboratory experiments on 1- to 3-day-old Biomphalaria glabrata, a vector snail of the blood fluke that causes the tropical and subtropical disease schistosomiasis....
New data on selected Ivory Coast tektites
F. Cuttitta, M. K. Carron, C. S. Annell
1972, Geochimica et Cosmochimica Acta (36) 1297-1309
Fourteen Ivory Coast tektites exhibit a range of bulk indices of refraction of 1.5156 to 1.5217 ± 0.0004 and of bulk specific gravities of 2.428 to 2.502 ±0.005. Seven of these Ivory Coast (IVC) tektites were analyzed for major and minor element content. Compared to tektites from other strewn fields,...
Absolute stress measurements at the rangely anticline, Northwestern Colorado
R. V. de la Cruz, C.B. Raleigh
1972, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (9) 625-634
Five different methods of measuring absolute state of stress in rocks in situ were used at sites near Rangely, Colorado, and the results compared. For near-surface measurements, overcoring of the borehole-deformation gage is the most convenient and rapid means of obtaining reliable values for the...
In vitro studies with Nifurpirinol (P-7138) and bacterial fish pathogens
A. J. Ross
1972, Progressive Fish-Culturist (34) 18-20
Natural land slopes in the Ellington quadrangle, Connecticut
Rachel M. Barker
1972, Open-File Report 72-15
No abstract available....
The apollo 15 lunar samples: A preliminary description
P.W. Gast, W.C. Phinney, M.B. Duke, L. T. Silver, N.J. Hubbard, G.H. Heiken, P. Butler, D.S. McKay, J.L. Warner, D.A. Morrison, F. Horz, J. Head, G.E. Lofgren, W.I. Ridley, A.M. Reid, H. Wilshire, J.F. Lindsay, W.D. Carrier, P. Jakes, M.N. Bass, P.R. Brett, E.D. Jackson, J.M. Rhodes, B.M. Bansal, J.E. Wainwright, K.A. Parker, K.V. Rodgers, J.E. Keith, R.S. Clark, E. Schonfeld, L. Bennett, Martha M. Robbins, W. Portenier, D.D. Bogard, W.R. Hart, W.C. Hirsch, R.B. Wilkin, E.K. Gibson, C.B. Moore, C.F. Lewis
1972, Science (175) 363-375
Samples returned from the Apollo 15 site consist of mare basalts and breccias with a variety of premare igneous rocks. The mare basalts are from at least two different lava flows. The bulk chemical compositions and textures of these rocks confirm the previous conclusion that the lunar maria consist of...
Imaging experiment: The Viking Mars orbiter
M. H. Carr, W.A. Baum, G.A. Briggs, H. Masursky, D.W. Wise, D. R. Montgomery
1972, Icarus (16) 17-33
The general objectives of the Imaging Experiment on the Viking Orbiter are to aid the selection of Viking Lander sites, to map and monitor the chosen sites during lander operations, to aid in the selection of future landing sites, and to extend our...
Radiative-neutron-capture gamma-ray analysis by a linear combination technique
A.B. Tanner, R.C. Bhargava, F. E. Senftle, J.M. Brinkerhoff
1972, Nuclear Instruments and Methods (102) 61-72
The linear combination technique, when applied to a gamma-ray spectrum, gives a single number indicative of the extent to which the spectral lines of a sought element are present in a complex spectrum. Spectra are taken of the sought element and of various...
Fluorination of 1,2,3-, 1,2,4-, and 1,3,5-trihalobenzenes with potassium fluoride in dimethyl sulfone
R.H. Shiley, D. R. Dickerson, G. C. Finger
1972, Journal of Fluorine Chemistry (2) 19-26
Three trifluorobenzenes were prepared by reaction of the corresponding trichlorobenzenes with potassium fluoride or pottassium fluoride-cesium fluoride mixtures in dimethyl sulfone. Molar yields were 12.8% for 1,2,3-, 8.3% for 1,2,4-, and 56.2% for 1,3,5-. Improved yields of the 1,2,3- (23.9%) and the 1,2,4-...
