Sets of spectral lines for spectrographic thermometry and manometry in d.c. arcs of geologic materials
D. W. Golightly, A. F. Dorrzapf Jr., C. P. Thomas
1977, Spectrochimica Acta Part B: Atomic Spectroscopy (32) 313-325
Sets of 5 Fe(I) lines and 3 Ti(I) Ti(II) line pairs have been characterized for precise spectrographic thermometry and manometry, respectively, in d.c. arcs of geologic materials. The recommended lines are free of spectral interferences, exhibit minimal self absorption within defined concentration intervals, and are useful for chemically-unaltered silicate rocks,...
Cell dimensions and antiferromagnetism of lunar and terrestrial ilmenite single crystals
A. N. Thorpe, J.A. Minkin, F. E. Senftle, Corrine Alexander, Charles Briggs, H. T. Evans Jr., Gordon L. Nord Jr.
1977, Journal of Physics and Chemistry of Solids (38) 115-123
X-Ray diffraction and anisotropic magnetic measurements have been made on single crystals of lunar ilmenite and on terrestrial ilmenite from Bancroft, Ontario, Canada and the Ilmen Mountains, U.S.S.R. The elongated c">c-axis of lunar ilmenite, previously reported, is confirmed by new measurements. The shorter <span...
Fluoride content of clay minerals and argillaceous earth materials
Josephus Thomas Jr., H.D. Glass, W.A. White, R.M. Trandel
1977, Clays and Clay Minerals (25) 278-284
A reliable method, utilizing a fluoride ion-selective electrode, is described for the determination of fluoride in clays and shales. Interference by aluminum and iron is minimal. The reproducibility of the method is about ±5% at different levels of fluoride concentration.Data are presented for various clay minerals and for the <2-µm...
Energy allocation patterns of a sprouting and nonsprouting species of Arctostaphylos in the California chaparral
Jon E. Keeley, Sterling C. Keeley
1977, American Midland Naturalist (98) 1-10
The r- and K-selection theory was used to generate testable hypotheses about patterns of energy allocation in two chaparral shrubs of different reproductive strategies. Terminal-branchlet vegetative and reproductive biomass of the nonsprouting Arctostaphylos glauca and the sprouting A. glandulosa were sampled in a 23-year-old and a 90-year-old stand of chaparral...
Earthquakes and plate tectonics
H. Spall
1977, Earthquake Information Bulletin (USGS) (9) 14-17
The world's earthquakes are not randomly distributed over the Earth's surface. They tend to be concentrated in narrow zones. Why is this? And why are volcanoes and mountain ranges also found in these zones too? An explanation is to be found in plate tectonics, a concept which has revolutionized thinking in...
Introductory remarks on NEIS from Lou Pakiser
H. Spall
1977, Earthquake Information Bulletin (USGS) (9) 4-6
Lou Pakiser is Chief of the Branch of Seismicity and Earth Structure of the U.S Geological Survey at Denver, Colo. He is responsible for managing the National Earthquake Information Service (NEIS), the Albuquerque Seismological Laboratory, other U.S Seismic observatories, and a reserach program related to global seismology....
Toxicity of furanace to fish, aquatic invertebrates and frog eggs and larvae
L. L. Marking, T.D. Bills, J. H. Chandler Jr.
1977, Investigations in Fish Control 75
Abstract not submitted to date...
Square wave voltammetry at the dropping mercury electrode: Experimental
J.A. Turner, J. H. Christie, M. Vukovic, R. A. Osteryoung
1977, Analytical Chemistry (49) 1904-1908
Experimental verification of earlier theoretical work for square wave voltammetry at the dropping mercury electrode is given. Experiments using ferric oxalate and cadmium(II) in HCl confirm excellent agreement with theory. Experimental peak heights and peak widths are found to be within 2% of calculated results. An example of trace analysis...
Spectral characteristics of geomagnetic field variations at low and equatorial latitudes
W.H. Campbell
1977, Journal of Atmospheric and Terrestrial Physics (39) 1217-1227
Geomagnetic field spectra from eight standard observations at geomagnetic latitudes below 30?? were studied to determine the field characteristics unique to the equatorial region. Emphasis was placed upon those variations having periods between 5 min and 4 hr for a selection of magnetically quiet, average, and active days in 1965....
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...
Evaluating the intensity of U.S. earthquakes
R. Simon, C. Stover
1977, Earthquake Information Bulletin (USGS) (9) 24-29
The intensity scale based on the Modified Mercalli Scale of 1931 (MM scale) measures the effects of seismic shaking. Intensity estimations are often the only representation of the size of an earthquake when small shocks occur in areas far removed from seismograph stations that can record them instrumentally. The impossibility...
The chronic toxicity of 3-chloro-4-methyl benzamine HCl to birds
Edward W. Schafer Jr., Ronald B. Brunton, Donald J. Cunningham, Norman F. Lockyer
1977, Archives of Environmental Contamination and Toxicology (6) 241-248
3-Chloro-4-methyl benzamine HCl (DRC-1339), an avian toxicant, was fed to five species of birds for periods up to 120 days. The 30-day LC50 of uniformly treated feed for starlings was 4.7 ppm and the 90-day LC50 was 1.0 ppm. The 28-day LC50 for coturnix was 18 ppm. The 30-day LC50 for pigeons was...
Earthquake lights
J.S. Derr
1977, Earthquake Information Bulletin (USGS) (9) 18-21
The National Earthquake Information Service
J.S. Derr
1977, Earthquake Information Bulletin (USGS) (9) 7-9
Studying earthquakes in New Zealand
G.A. Eiby
1977, Earthquake Information Bulletin (USGS) (9) 17-24
Measuring the size of an earthquake
W. Spence
1977, Earthquake Information Bulletin (USGS) (9) 21-23
Earthquakes occur in a broad range of sizes. A rock burst in an Idaho silver mine may involve the fracture of 1 meter of rock; the 1965 Rat island earthquake in the Aleutian arc involved a 650-kilometer lenght of Earth's crust. Earthquakes can be even smaller and even larger. if...
The seismographic stations of the University of California, Berkeley
B. A. Bolt
1977, Earthquake Information Bulletin (USGS) (9) 4-12
Australian seismicity studies; a historical survey
J. Cleary
1977, Earthquake Information Bulletin (USGS) (9) 4-8
Mitigating earthquakes; the federal role
F. Press
1977, Earthquake Information Bulletin (USGS) (9) 4-5
With rapid approach of a capability to make reliable earthquake forecasts, it essential that the Federal Government play a strong, positive role in formulating and implementing plans to reduce earthquake hazards. Many steps are being taken in this direction, with the President looking to the Office of Science and Technology...
Demographic features of a lapland longspur population near Barrow, Alaska
Thomas W. Custer, Frank A. Pitelka
1977, The Auk (94) 505-525
Breeding density, clutch size, hatching and fledging success, and survival of adult Lapland Longspurs (Calcarius lapponicus) were monitored over a 7-year period near the Naval Arctic Research Laboratory, Barrow, Alaska. Nesting begins as soon as the tundra starts to clear of snow and appears to be timed so that the...
Mineral resources of study areas contiguous to the Uncompahgre Primitive Area, San Juan Mountains, southwestern Colorado, with a section on interpretation of aeromagnetic data
Thomas August Steven, P. W. Lipman, F. S. Fisher, C. L. Bieniewski, H. C. Meeves, Peter Popenoe, R. G. Luedke
1977, Bulletin 1391-E
No abstract available....
Biotransformation and elimination of the herbicide dinitramine in carp
L.E. Olson, J. L. Allen, J.W. Hogan
1977, Journal of Agricultural and Food Chemistry (25) 554-556
No abstract available....
Water dowsing
Water Resources Division, U.S. Geological Survey
1977, Report
No abstract available. ...
Rising ground-water level in downtown Louisville, Kentucky, 1972-1977
J. M. Kernodle, D. V. Whitesides
1977, Water-Resources Investigations Report 77-92
Ground-water levels in the alluvial aquifer in Louisville, Jefferson County, Kentucky, are rising at a rate which could cause wet basements and possible structural damage tc buildings in the downtown area by 1982. The predicted water level for 1982 is based on the nearly linear increase which has been observed...
Mineral resources of the Tracy Arm-Fords Terror Wilderness Study Area and vicinity, Alaska
David A. Brew, Donald Grybeck, Bruce R. Johnson, Robert C. Jachens, C.J. Nutt, D.F. Barnes, A.L. Kimball, J.C. Still, J.L. Rataj
1977, Open-File Report 77-649
The Wilderness Study Area consists of about 322,300 hectares (1,250 square miles or 796,400 acres) on the southwest side of the Coast Range in southeastern Alaska about 72 km (45 miles) southeast of Juneau, Alaska (fig. 1). An additional 142,800 hectares (550 square miles or 352,900 acres) lying in part...
