Raymond P. Buland
1982, Physics of the Earth and Planetary Interiors (30) 157-160
[No abstract available]...
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Publication Extents
Not all publications have extents, not all extents are completely accurateA. F. Espinosa
1982, Earthquake Information Bulletin (USGS) (14) 4-6
The results from seismological studies that are used by the engineering community are just one of the benefits obtained from research aimed at mitigating the earthquake hazard. In this issue of Earthquake Information Bulletin current programs in seismology and earthquake engineering, seismic networks, future plans and some of the cooperative...
J. A. Erdman, R.C. Moul
1982, Journal of Agricultural and Food Chemistry (30) 169-174
Seventy-five cultivated varieties (cultivars) of hard red spring wheat (HRS), hard red winter wheat (HRW), durum wheat, oats, and barley were harvested in 1974 from a small-grain trial plot in Harding County, SD, just north of Buffalo. Analysis of the grains reported here includes crude protein for only the wheat...
D. B. Smith, R. A. Zielinski, W.I. Rose Jr., B.J. Huebert
1982, Journal of Geophysical Research - Oceans (87) 4963-4972
In February and March of 1978, filter samplers mounted on an aircraft were used to collect the aerosol fraction of the eruption clouds from three active Guatemalan volcanoes (Fuego, Pacaya, and Santiaguito). The samples were collected on Teflon (Fluoropore) filters with a nominal pore diameter of 0.5μm. The mass of...
N.W. Peddie, E.B. Fabiano
1982, Journal of Geomagnetism & Geoelectricity (34) 357-364
A best current model of the main geomagnetic field is presented as a response to a need for an “International Geomagnetic Reference Field”. This model is described by a series of 120 spherical harmonic coefficients and their first and second time derivatives from an epoch 1960.0. It was...
C.E. Barker
1982, Journal of Sedimentary Petrology (52) 663-664
The tecnique discussed in this paper utilizes crushing, high-speed blending, and ultrasonic treatment to mechanically disaggregate rock and release the sedimentary organic matter (OM) in a suitable heavy liquid. This new method can provide freeze-dried concentrated OM in approximately 8 to 24 hours (longer time is necessary for removing carbonate)....
J.P. Snyder
1982, Photogrammetric Engineering and Remote Sensing (48) 1593-1602
The proposed mapping satellite Mapsat is to consist of fixed fore, vertical, and aft linear detector arrays, any two of which may be used simultaneously to obtain digital images for one- dimensional stereo correlation. The satellite attitude may be varied according to Fourier series to enable a given detector on...
R.I. Tilling
Henry Spall, editor(s)
1982, Earthquake Information Bulletin (USGS) (14) 164-172
Late in the evening on March 28, El Chichon roared into life with a tremendous explosion that sent a column of ash and gases 10 miles high within an hour. There were no immediate warning signals of the eruption of El Chichon, although increased earthquake activity had been noted for...
C. Wylie Poag
1982, American Association of Petroleum Geologists Bulletin (66) 1021-1041
A multichannel seismic reflection profile (U.S. Geological Survey line 19), calibrated with the COST G-1, COST G-2, and Shell Mohican I-100 wells, and seismic-sequence analysis shows that the chronostratigraphic and lithostratigraphic units and depositional history of the Georges Bank basin are similar to those of the Scotian basin. Carbonate rocks...
T.J. Buchanan, B.K. Gilbert
1982, Journal of Water Resources Planning and Management (108) 37-45
The U.S. Geological Survey Federal-State Cooperative Water Resource Program is a partnership between the Geological Survey and State and local agencies for the collection of the hydrologic information needed for the continuing determination and evaluation of the quantity, quality, and use of the Nation's water resources. The first Cooperative Program...
John W. Hillhouse, C. S. Grommé
1982, Geology (10) 552-556
Volcanic rocks of the Paleocene Cantwell Formation in central Alaska apparently originated at a paleolatitude of 83°N (α95 = 9.7°), as indicated by paleomagnetic results. When compared with the Paleocene pole for the North American craton, the 95% confidence limits of the results suggest...
M.A. Domenick, A. R. Basu
1982, Contributions to Mineralogy and Petrology (79) 290-294
Sm-Nd systematics for nine whole-rock samples of hornblende norites, pyroxenites and a lamprophyre from various parts of the Cortlandt Complex were analyzed. Six of these samples from the central and eastern parts of the complex give an isochron age of 430??34 (2 ??) Ma with an e{open}Nd value of -2.9??0.5,...
J.D. Hem, C. E. Roberson, Reba B. Fournier
1982, Water Resources Research (18) 563-570
Beta MnOOH is precipitated preferentially (with respect to Mn3O4) at temperatures near O°C when Mn2+ is oxidized in aerated aqueous solutions. Upon aging in solutions open to the atmosphere a slurry of βMnOOH tends to disproportionate to form MnO2 and Mn2+. In such aged solutions, Mn2+ and H+ activities can be constant, and both...
B. R. Wardlaw, M.K. Nestell, J.T. Dutro Jr.
1982, Geology (10) 13-16
Larger isolated outcrops of the limestones of the Coyote Butte Formation consistently contain younger over older faunas that range through most of the Leonardian Series of the Early Permian. The outcrops of the Coyote Butte Formation are interpreted as right-side up blocks probably...
L.R. Alldredge
1982, Journal of Geophysical Research Solid Earth (87) 1921-1926
Procedures are developed for using rectangular and cylindrical harmonic analyses in local and regional areas. Both the linear least squares analysis, applicable when component data are available, and the nonlinear least squares analysis, applicable when only total field data are available, are treated. When component data are available, it is...
K. J. Wenrich, P.J. Modreski, R. A. Zielinski, J. L. Seeley
1982, American Mineralogist (67) 1273-1289
Margaritasite, (Cs,K,H3O)2(UO2)2V2O8.nH2O (where Cs > K, H3O and n approx 1), a 10.514, b 8.425, c 7.25 A, beta 106.01o, P21/a, Z = 2, is a newly recognized uranium ore mineral named for the Margaritas deposit, Pena Blanca uranium district, Chihuahua, Mexico, at which it was discovered. A Cs-rich analogue...
B. R. Doe, W.P. Leeman, R.L. Christiansen, C. E. Hedge
1982, Journal of Geophysical Research Solid Earth (87) 4785-4806
Supported by various field geologic and petrologic data, the contents of Pb, U, Th, Rb, and Sr and the isotopic compositions of Pb and Sr for upper Cenozoic volcanic rocks of the Yellowstone Plateau volcanic field are consistent with the hypothesis of derivation of the basaltic and rhyolitic magmas by...
M. H. Carr
1982, Icarus (50) 129-139
The polar regions of Mars preserve, in both their layering and their topography, a record of recent climate changes. Because of the coincidence of the growth of the northern seasonal cap with global dust storms, dust may be currently accumulating on...
R. A. Robie, C.B. Finch, B. S. Hemingway
1982, American Mineralogist (67) 463-469
At 298.15 K, 017Cop and So are 131.9 and 151.0 J/(mole.K). Also 045DELTA Hof,298 = -1478.17 and 045DELTA Gof,298 = -1378.98 kJ/mole. The temperature dependence of the equilibrium constant for the quartz - fayalite - magnetite buffer reaction is thus calculated.-K.A.R....
T.K. Kyser, J. R. O’Neil, I. S. E. Carmichael
1982, Contributions to Mineralogy and Petrology (81) 88-102
??18O values of unaltered basic lavas range from 4.9 to 8.3 but different types of basalts are usually restricted to narrow and distinct ranges of isotopic composition. The average ??18O values for Hawaiian tholeiites, mid-ocean ridge tholeiites, and alkali basalts are 5.4, 5.7, and 6.2 permil, respectively. Potassic lavas and...
Steven M. Colman
1982, Geology (10) 370-375
Weathering rinds on volcanic clasts in Quaternary deposits in the western United States contain only very fine grained and poorly crystalline clay minerals. Rinds were sampled from soils containing well-developed argillic B horizons in deposits about 105 yr old or more. The clay-size fraction...
W.D. Watson, J.A. Jaksch
1982, Journal of Environmental Economics and Management (9) 248-262
This paper uses demand and supply functions for cleanliness to estimate household benefits from reduced particulate matter soiling. A demand curve for household cleanliness is estimated, based upon the assumption that households prefer more cleanliness to less. Empirical coefficients, related to particulate pollution levels, for shifting the cleanliness supply curve,...
D.M. Unruh
1982, Earth and Planetary Science Letters (58) 75-94
U, Th, and Pb analyses of whole-rock and troilite separates from seven L chondrites suggest that the excess radiogenic Pb relative to U and the large variations in PbPb model ages commonly observed in chondritic meteorites are largely due to terrestrial Pb contamination induced prior to...
E. Reimnitz, E. Kempema
1982, Journal of Sedimentary Petrology (52) 451-462
Contour maps with 0.5-m depth interval were prepared for a small area seaward of Reindeer Island, a barrier island in the Beaufort Sea, Alaska, by repeated surveys with very accurate navigation and very close trackline spacing. The maps reveal numerous closed depressions and...
H. A. Poston, J. L. Coffine, G. F. Combs Jr.
1982, Aquatic Toxicology (2) 79-88
A 16-wk feeding study was conducted to evaluate the chronic toxicity of graded levels (0, 1.0, 2.5.5, 10 and 15 mg/kg of chemically pure dietary T-2 toxin (4,15-diacetoxy-8-(3-methylbutyryloxy)-12,13-epoxy-Δ9-tricothecen-3-ol) in 1-g rainbow trout, Salmo gairdneri, held in 9°C single-passage well water. Levels of T-2 toxin > 2.5 mg/kg depressed growth, efficiency of...