Albedo boundaries on Mars in 1972: Results from Mariner 9
R. M. Batson, J.L. Inge
1976, Icarus (27) 531-536
A map of “albedo” boundaries (light and dark markings) on Mars was prepared from Mariner 9 images. After special digital processing, these pictures provide detailed locations of albedo boundaries, which is significant in interpreting recent eolian activity. Derivation of absolute albedo values from the spacecraft data was not attempted. The...
Earthquake history of Oklahoma
C. A. von Hake
1976, Earthquake Information Bulletin (USGS) (8) 28-30
The strongest and most widely felt earthquake in Oklahoma occurred on April 9, 1952. The intensity VII (Modified Mercalli Scale) tremor was felt over 362,000 sqaure kilometres. A second intensity VII earthquake, felt over a very small area, occurred in October 1956. In addition, 15 other shocks, intensity V or...
Cardinal and mockingbird in Jamestown, North Dakota
Douglas H. Johnson, J.E. Johnson
1976, Prairie Naturalist (8) 60-60
Abstract has not been submitted...
Earthquake watch
M. Hill
1976, Earthquake Information Bulletin (USGS) (8) 10-11
When the time comes that earthquakes can be predicted accurately, what shall we do with the knowledge? This was the theme of a November 1975 conference on earthquake warning and response held in San Francisco called by Assistant Secretary of the Interior Jack W. Carlson. Invited were officials of State...
Chemical and physical characteristics of water in estuaries of Texas, October 1971-September 1973
Karl W. Ratzlaff
1976, Texas Water Development Board Report 208
No abstract available....
Annotated bibliography of Texas water resources reports of the Texas Water Development Board and U.S. Geological Survey through August 1974
C. D. Friebele, H. A. Wolff
1976, Texas Water Development Board Report 199
No abstract available....
Records of wells, drillers' logs, water-level measurements, and chemical analyses of ground water in Harris and Galveston Counties, Texas, 1970-74
W. L. Naftel, Kenneth D. Vaught, Bobbie Fleming
1976, Texas Water Development Board Report 203
No abstract available....
Change in methylene blue active substances and chloride levels in streams in Suffolk County, New York, 1961-1976
Stephen E. Ragone, August A. Guerrera, W.J. Flipse Jr.
1976, Open-File Report 76-600
Since 1961, concentrations of methylene blue active substances and chloride were measured in samples collected at 67 sampling stations on 44 streams in Suffolk County, Long Island, New York. Changes in the concentrations of these constituents and calculated chloride/methylene blue active substances ratios are reported. Although many factors--the 1962 to...
Geochemical and isotopic analyses of waters associated with the Edwards Limestone aquifer, central Texas
F. J. Pearson Jr., P.L. Rettman
1976, Report
No abstract available....
Movements of desert bighorn sheep in the River Mountains of the Lake Mead National Recreation Area, Project Report #2
David M. Leslie Jr., C. L. Douglas
1976, Technical Report CPSU/UNLV 010/45
No abstract available at this time...
Foraminiferal biostratigraphy of the shelf edge: a key to late Quaternary paleoenvironments
C. Wylie Poag, B.R. Sidner
1976, Palaeogeography, Palaeoclimatology, Palaeoecology (19) 17-37
Foraminiferal assemblages in eight piston cores from West Flower Garden Bank at the edge of the Texas continental shelf contain a nearly complete record of late Quaternary paleoclimatic and geologic events. The faunas are divisible into three distinct successive biofacies on the basis of both planktonic and benthic foraminifers: the...
Discovery of natural resources
P. W. Guild
1976, Science (191) 708-713
Mankind will continue to need ores of more or less the types and grades used today to supply its needs for new mineral raw materials, at least until fusion or some other relatively cheap, inexhaustible energy source is developed. Most deposits being mined today were exposed at the surface or...
Effect of pH on exchange-adsorption or precipitation of lead from landfill leachates by clay minerals
R. A. Griffin
1976, Environmental Science & Technology (10) 1256-1261
No abstract available....
An acute septicaemic disease of brown trout (Salmo trutta) and Atlantic salmon (Salmo salar) caused by a Pasteurella-like organism
T. Hastein, G. L. Bullock
1976, Journal of Fish Biology (8) 23-26
Ulcerations of the skin associated with haemorrhagic petechiae of liver and kidneys, were the main signs of disease affecting salmon and brown trout in Norway. A death rate of 15–20% was estimated for the 5 month period of mid-March-August, although mortalities occurred throughout the year. Bacteriological examinations, involving 36 isolates,...
Turbidity distribution in the Atlantic Ocean
Stephen Eittreim, E. M. Thorndike, L. Sullivan
1976, Deep-Sea Research and Oceanographic Abstracts (23) 1115-1127
The regional coverage of Lamont nephelometer data in the North and South Atlantic can be used to map seawater turbidity at all depths. At the level of the clearest water, in the mid-depth regions, the turbidity distribution primarily reflects the pattern of productivity in the surface waters. This suggests that...
Qal’eh hasan ali maars, central Iran
D.J. Milton
1976, Bulletin Volcanologique (40) 201-208
A group of craters 120 km southeast of Kerman, the largest 1200 m across and 300 m deep, are typical maars, excavated depression with rims of bedded pyroclastic debris. Most of the crater rims are composed entirely of country rock clasts, but the largest crater yields tephrite, composed of phenocrysts...
Aseismic uplift in Southern California
Robert O. Castle, Jack P. Church, Michael R. Elliot
1976, Science (192) 251-253
Preliminary examination of the historic geodetic record has disclosed crustal uplift of 0.15 to 0.25 meter that apparently began around 1960 and has since grown to include at least 12,000 square kilometers of southern California. This uplift extends at least 150 kilometers west-northwestward along the San Andreas Fault from Cajon...
Glomerular mesangial fibrosis in hatchery-reared rainbow trout (Salmo gairdneri)
D.E. Hinton, R.T. Jones, R. L. Herman
1976, Journal of the Fisheries Research Board of Canada (33) 2551-2559
Light and electron microscopic studies were performed on tissues of hatchery-reared rainbow trout (Salmo gairdneri) having a disease of currently unknown etiology with external symptoms of severe edema which causes increased mortality rate. Comparison with unaffected trout tissues revealed loss of cellularity in glomerular tufts with a replacement of mesangial...
Automation in photogrammetry: Recent developments and applications (1972-1976)
M.M. Thompson, E.M. Mikhail
1976, Photogrammetria (32) 111-145
An overview of recent developments in the automation of photogrammetry in various countries is presented. Conclusions regarding automated photogrammetry reached at the 1972 Congress in Ottawa are reviewed first as a background for examining the developments of 1972-1976. Applications are described for each country reporting significant developments. Among fifteen conclusions...
Alternate drop pulse polarography
J. H. Christie, Larry L. Jackson, R. A. Osteryoung
1976, Analytical Chemistry (48) 242-247
The new technique of alternate drop pulse polarography is presented. An experimental evaluation of alternate drop pulse polarography shows complete compensation of the capacitative background due to drop expansion. The capillary response phenomenon was studied in the absence of faradaic reaction and the capillary response current was found to depend...
A note on the effect of fault gouge thickness on fault stability
J. Byerlee, R. Summers
1976, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (13) 35-36
At low confining pressure, sliding on saw cuts in granite is stable but at high pressure it is unstable. The pressure at which the transition takes place increases if the thickness of the crushed material between the sliding surfaces is increased. This experimental result suggests that on natural faults the...
Distribution of small channels on the Martian surface
D. Pieri
1976, Icarus (27) 25-50
The distribution of small channels on Mars has been mapped from Mariner 9 images, at the 1:5 000 000 scale, by the author. The small channels referred to here are small valleys ranging in width from the resolution limit of the Mariner 9 wide-angle images (???1 km) to about 10...
Carbon, hydrogen, and oxygen isotope studies of the regional metamorphic complex at Naxos, Greece
R. O. Rye, R.D. Schuiling, D.M. Rye, J.B.H. Jansen
1976, Geochimica et Cosmochimica Acta (40) 1031-1049
At Naxos, Greece, a migmatite dome is surrounded by schists and marbles of decreasing metamorphic grade. Sillimanite, kyanite, biotite, chlorite, and glaucophane zones are recognized at successively greater distances from the migmatite dome. Quartz-muscovite and quartz-biotite oxygen isotope and mineralogie temperatures range from 350 to 700°C.The metamorphic complex can be...
Extended cabfac and Qmodel computer programs for Q-mode factor analysis of compositional data
J.E. Klovan, A.T. Miesch
1976, Computers & Geosciences (1) 161-178
The computer program CABFAC for Q-mode factor analysis of geologic data has been extended for use with data having constant row-sums. Another program, QMODEL, reads an output file from CABFAC and can be used to develop a variety of Q-mode models. The models serve to reproduce estimates of the original...
Rapid determination of nanogram amounts of tellurium in silicate rocks
L. P. Greenland, E.Y. Campbell
1976, Analytica Chimica Acta (87) 323-328
A hydride-generation flameless atomic-absorption technique is used to determine as little as 5 ng g-1 tellurium in 0.25 g of silicate rock. After acid decomposition of the sample, tellurium hydride is generated with sodium borohydride and the vapor passed directly to a resistance-heated quartz cell mounted in an atomic-absorption spectrophotometer. Analyses...
