Fire management in the Yosemite mixed conifer ecosystem
J. W. van Wagtendonk
1977, General Technical Report WO-3
No abstract available at this time...
Map showing Mesozoic magnetic anomalies, western North Atlantic
Hans Schouten, Kim D. Klitgord
1977, Miscellaneous Field Studies Map 915
No abstract available....
The importance of water management to the health of continental waterfowl populations
M. Friend
1977, Book, Proceedings of the Association of Midwest Fish and Wildlife Commissioners
Vitamin requirements
H.K. Dupree
1977, Book chapter, Nutrition and Feeding of Channel Catfish
No abstract available at this time...
Investigation of detection limits for solutes in water measured by laser raman spectrometry
Kirkwood M. Cunningham, Marvin C. Goldberg, Eugene R. Weiner
1977, Analytical Chemistry (49) 70-75
The influence of experimental parameters on detection sensitivity was determined for laser Raman analysis of dissolved solutes in water. Individual solutions of nitrate, sulfate, carbonate, bicarbonate, monohydrogen phosphate, dihydrogen phosphate, acetate ion, and acetic acid were measured. An equation is derived which expresses the signal-to-noise ratio in terms of solute...
Water analysis
M. J. Fishman, D. E. Erdmann
1977, Analytical Chemistry (49) 139-158
No abstract available....
Salmonella enteritidis and Arizona hinshawii isolated from wild sandhill cranes
R. M. Windingstad, D.O. Trainer, R. M. Duncan
1977, Avian Diseases (21) 704-707
Salmonella enteritidis serotype Rubislaw and Arizona hinshawii were isolated from cloacal swabs of "healthy" live-trapped sandhill cranes (Grus canadensis tabida) in Indiana and Wisconsin. These respective isolations were the first reported from wild sandhill cranes....
Earthquake research in China
B. Raleigh
1977, Earthquake Information Bulletin (USGS) (9) 18-21
On the evening of February 4, 1975, a magnitude 7.3 earthquake occurred near Haicheng in Liaoning Privince in eastern China. Almost 90 percent of the structures in Haicheng, a city of 90,000 people, were destroyed or seriously damaged. Given the time of day, the subfreezing temperatures, and the population density...
Can we control earthquakes?
B. Raleigh
1977, Earthquake Information Bulletin (USGS) (9) 4-7
In 1966, it was discovered that high pressure injection of industrial waste fluids into the subsurface near Denver, Colo., was triggering earthquakes. While this was disturbing at the time, it was also exciting because there was immediate speculation that here at last was a mechanism to control earthquakes. ...
Tectonic map of the Rio Grande Rift system in Colorado
1977, Open-File Report 77-750
No abstract available. ...
Relation between earthquakes, weather, and soil tilt
M.D. Wood, N.E. King
1977, Science (197) 154-156
Two years of local earthquake, temperature, and rainfall data taken near a tiltmeter site were used in a study of the numerical relation between these phenomena and the recorded tilt response. A least-squares shaping and predictive error filter approach was used. The relations were ranked in part according to the...
Graphic analysis of resources by numerical evaluation techniques (Garnet)
A.C. Olson
1977, Computers & Geosciences (3) 539-545
An interactive computer program for graphical analysis has been developed by the U.S. Geological Survey. The program embodies five goals, (1) economical use of computer resources, (2) simplicity for user applications, (3) interactive on-line use, (4) minimal core requirements, and (5) portability. It is designed to aid (1) the rapid...
Chemical geothermometers and mixing models for geothermal systems
R.O. Fournier
1977, Geothermics (5) 41-50
Qualitative chemical geothermometers utilize anomalous concentrations of various "indicator" elements in groundwaters, streams, soils, and soil gases to outline favorable places to explore for geothermal energy. Some of the qualitative methods, such as the delineation of mercury and helium anomalies in soil gases, do not require the presence of hot...
Techniques for the conversion to carbon dioxide of oxygen from dissolved sulfate in thermal waters
N.L. Nehring, P.A. Bowen, A.H. Truesdell
1977, Geothermics (5) 63-66
The fractionation of oxygen isotopes between dissolved sulfate ions and water provides a useful geothermometer for geothermal waters. The oxygen isotope composition of dissolved sulfate may also be used to indicate the source of the sulfate and processes of formation. The methods described here for separation, purification and reduction of...
Gas-liquid chromatographic determination of residues of m-aminobenzoic methanesulfonate acid ethyl ester in fish
J.B. Sills, C.W. Luhning
1977, Journal of the Association of Official Analytical Chemists (60) 961-962
Abstract has not been submitted...
An exploratory drilling exhaustion sequence plot program
J.H. Schuenemeyer, L.J. Drew
1977, Computers & Geosciences (3) 617-631
The exhaustion sequence plot program computes the conditional area of influence for wells in a specified rectangular region with respect to a fixed-size deposit. The deposit is represented by an ellipse whose size is chosen by the user. The area of influence may be displayed on computer printer plots consisting...
The U.S. geological survey rass-statpac system for management and statistical reduction of geochemical data
G. VanTrump Jr., A.T. Miesch
1977, Computers & Geosciences (3) 475-488
RASS is an acronym for Rock Analysis Storage System and STATPAC, for Statistical Package. The RASS and STATPAC computer programs are integrated into the RASS-STATPAC system for the management and statistical reduction of geochemical data. The system, in its present form, has been in use for more than 9 yr...
Biogeography of late Silurian and devonian rugose corals
W. A. Oliver Jr.
1977, Palaeogeography, Palaeoclimatology, Palaeoecology (22) 85-135
Three marine benthic faunal realms can be recognized in the Early and Middle Devonian. The Eastern Americas Realm consisted of most of the eastern half of North America and South America north of the Amazon. This realm extended in a southwest direction from the Devonian equator to approximately 35??S and...
Importance of neutron energy distribution in borehole activation analysis in relatively dry, low-porosity rocks
F. E. Senftle, R.M. Moxham, A.B. Tanner, P. W. Philbin, G. R. Boynton, R.E. Wager
1977, Geoexploration (15) 121-135
To evaluate the importance of variations in the neutron energy distribution in borehole activation analysis, capture gamma-ray measurements were made in relatively dry, low-porosity gabbro of the Duluth Complex. Although sections of over a meter of solid rock were encountered in the borehole, there was significant fracturing with interstitial water...
Inorganic and geological materials
J. I. Dinnin
1977, Analytical Chemistry (49) 34-53
No abstract available....
A method and fortran program for the computerized reconstruction of three-dimensional objects from serial sections
J.C. Tipper
1977, Computers & Geosciences (3) 579-599
Three-dimensional objects can be reconstructed automatically from sets of serial sections by using a suitable algorithm. For two-phase systems it is sufficient to match phase boundary loops between adjacent sections. When all possible neighboring pairs of sections have been compared in this manner, the bounding surfaces of the object are...
Recent metalliferous sediment in the North Pacific manganese nodule area
J. L. Bischoff, R.J. Rosenbauer
1977, Earth and Planetary Science Letters (33) 379-388
Quaternary sediments cored in the northeast Pacific nodule area (DOMES site C, 14°N, 126°W) contain a significant amount of hydrothermal metalliferous mud. Water content, color, mineralogy, and chemical composition are analogous to metalliferous sediments of the subequatorial East Pacific Rise.Correction for contribution of pelagic clay indicates the metalliferous fraction to...
Interpretation of discordant 40Ar/39Ar age-spectra of mesozoic tholeiites from Antarctica
R.J. Fleck, J. F. Sutter, D.H. Elliot
1977, Geochimica et Cosmochimica Acta (41) 15-32
Conventional K-Ar ages of tholeiitic basalts of the Ferrar Group in the central Transantarctic Mountains indicate significant loss of radiogenic 40Ar from this unit over much of its outcrop area. Argon loss varies inversely with amount of devitrified matrix in the basalts, which have not been thermally or tectonically disturbed since...
Hydrothermal transport of heavy metals by seawater: The role of seawater/basalt ratio
W. Seyfried, J. L. Bischoff
1977, Earth and Planetary Science Letters (34) 71-77
Seawater reacted with basaltic glass at 260°C and 500 bars under water-dominated conditions (50 : 1 water/rock ratio) efficiently leached and maintained heavy metals in solution. Cu, Zn, and Ba are transferred in significant proportions to the aqueous phase, while Fe...
Electrophoretic distinction of rainbow trout (Salmo gairdneri), west-slope cutthroat trout (S: clarki), and their hybrids
G. L. Reinitz
1977, Journal of the Fisheries Research Board of Canada (34) 1236-1239