Electric power generation and its influence on Great Lakes fish
Thomas A. Edsall
1976, Conference Paper, Proceedings of the Second Federal Conference on the Great Lakes
No abstract available....
The sound of an earthquake
D.P. Hill
1976, Earthquake Information Bulletin (USGS) (8) 15-18
Historical accounts of earthquakes often include references to sounds which accompany earthquakes. ...
The San Francisco cow; did she or didn’t she?
M. Hill
1976, Earthquake Information Bulletin (USGS) (8) 19-23
No one has suggested that Mr. Shafter's nameless cow was the cause of the 1906 earthquake, but she has been the source of as persistent a rumor as Mrs. Murphy's Chicago cow. Since 1906, "the cow that fell in the crack" has been a favorite subject of humorous speculation. large...
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...
Intrinsic germanium detector used in borehole sonde for uranium exploration
F. E. Senftle, R.M. Moxham, A.B. Tanner, G. R. Boynton, P. W. Philbin, J.A. Baicker
1976, Nuclear Instruments and Methods (138) 371-380
A borehole sonde (~1.7 m long; 7.3 cm diameter) using a 200 mm2 planar intrinsic germanium detector, mounted in a cryostat cooled by removable canisters of frozen propane, has been constructed and tested. The sonde is especially useful in measuring X- and low-energy gamma-ray spectra (40–400 keV). Laboratory tests in...
A study of alternative schemes for extrapolation of secular variation at observatories
L.R. Alldredge
1976, Physics of the Earth and Planetary Interiors (11)
The geomagnetic secular variation is not well known. This limits the useful life of geomagnetic models. The secular variation is usually assumed to be linear with time. It is found that attenative schemes that employ quasiperiodic variations from internal and external sources can improve the extrapolation of secular variation at...
Mixing of carbonate waters
T.M.L. Wigley, Niel Plummer
1976, Geochimica et Cosmochimica Acta (40) 989-995
When mineral solutions of different compositions are mixed, the molalities and activities of individual ions in the mixture are often non-linear functions of their end-member values. This non-linearity is particularly significant in determining mineral saturation levels. Mixtures of saturated solutions may be either...
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...
Salt-load computations - Colorado River, Cameo, Colorado, to Cisco, Utah
Robert Brennan, Richard Ural Grozier
1976, Report
No abstract available....
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...
Hydrologic studies by the U.S. Geological Survey in oil-shale areas of Colorado, Utah, and Wyoming, 1976
U.S. Geological Survey
1976, Report
No abstract available....
Determination of lead in rocks by radiometric isotope dilution and substoichiometric extraction
Philip Aruscavage
1976, Analytica Chimica Acta (82) 343-348
A rapid procedure is described for the determination of lead in rocks by an isotope-dilution substoichiometric method. After the sample has been digested with acid in the presence of 210Pb tracer, the lead is separated by dithizone extractions. After the lead has been back-extracted into aqueous solution, it is reacted with...
Atomic absorption spectrometric determination of copper, zinc, and lead in geological materials
R. F. Sanzolone, T. T. Chao
1976, Analytica Chimica Acta (86) 163-168
An atomic absorption spectrometric method is described for the determination of copper, zinc, and lead in geological materials. The sample is digested with HF—HCl—H2O2; the final solution for analysis is in 10 % (v/v) HCl. Copper and zinc are determined directly by aspirating the solution into an air—acetylene flame. A...
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...
Annual report to the Pecos River Commission on investigations being made in New Mexico and Texas by the United States Geological Survey in cooperation with the Pecos River Commission: calendar year 1976
Water Resources Division, U.S. Geological Survey
1976, Report
This report describes investigations in New Mexico and Texas made by the Water Resources Division of the U.S. Geological Survey in cooperation with the Pecos River Commission during the 1976 calendar year and provides a summary of costs for the fiscal year ending June 30, 1976....
Radiocarbon dates indicate rates of graben downfaulting, San Jacinto Valley, California
B. E. Lofgren, Meyer Rubin
1975, Journal of Research of the U.S. Geological Survey (3) 45-46
Recent radiocarbon dates for wood samples collected from three depths in San Jacinto Valley graben indicate active tectonic downfaulting during the past 42,000 yr. The flood plain of graded San Jacinto River, entering the valley from the southeast and leaving toward the west, serves as a reference datum across the...
Relation of water level and fish availability to wood stork reproduction in the southern Everglades, Florida
James A. Kushlan, John C. Ogden, Aaron L. Higer
1975, Open-File Report 75-434
The wood stork is a species of colonial wading bird in the Everglades that is most sensitive to changes in the availability of food. Previous studies have shown that the initiation and success of wood stork nesting depends on high densities of fish concentrated in ponds and other catchment basins...
Water resources data for Maryland and Delaware, water year 1974, Part 1. Surface water records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report MD-DE-74-1
No abstract available. ...
Water resources data Maryland and Delaware, water year 1973, Part 2. Water quality records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report MD-DE-73-2
No abstract available. ...
Water resources data Maryland and Delaware, water year 1974, Part 2. Water quality records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report MD-DE-74-2
No abstract available....
Water resources data Maryland and Delaware, water year 1972, Part 2. Water quality records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report MD-DE-72-2
No abstract available....
Sequential bidding models--a decision theoretic approach
Emil D. Attanasi, S.R. Johnson
1975, Industrial Organization Review (3) 49-55
No abstract available....
Developing a state water plan: Ground-water conditions in Utah, spring of 1975
James H. Eychaner, W.N. Jibson, E.L. Bolke, R. W. Mower, L. R. Herbert, R.M. Cordova, V.L. Jensen, M. D. ReMillard, G. W. Sandberg, C.T. Sumison, L.J. Bjorklund
1975, Report
This report is the twelfth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, prepared cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties such as legislators, administrators, and planners to keep abreast...
Bibliography of U.S. Geological Survey water-resources reports for Utah
1975, Utah Division of Water Rights Information Bulletin 23
This bibliography contains a complete listing to December 31, 1974, of reports relating to the water resources of Utah prepared by personnel of the U.S. Geological Survey. Discussions of the related subjects of geology, hydrology, and chemical quality of the water are included in many of the reports. The reports...
Estimating mean streamflow in the Duchesne River basin, Utah
R.W. Cruff
1975, Technical Publication 48
Monthly, annual, and long-term mean streamflow were estimated for streams in the Duchesne River basin by use of the monthly measurement method. Monthly measurements were attempted at 44 sites in the basin during the 1971 and 1972 water years. Some measurements could not be made because some sites were not...
