Kevin H. Nervick, Frances M. Boler
1981, Open-File Report 81-774
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateE. D. Attanasi, E.K. Green
1981, The Annals of Regional Science (15) 43-52
The Federal Government's efforts to induce development of a coal-based synthetic fuel industry include direct subsidies, tax concessions, and assurances that it will purchase the industry's output, even if above the market price. In this note it is argued that these subsidies will enable this industry to secure a region's...
Y. Miura, J. Rucklidge, Gordon L. Nord Jr.
1981, Contributions to Mineralogy and Petrology (76) 17-23
Partially serpentinized dunites containing small amounts of Chlorine (< 0.5%) from Dumont, Quebec, and Horoman, Hokkaido, Japan, and one containing less than 0.05% Chlorine from Higashi-Akaishi-Yama, Ehime, Japan have been examined using the electron probe microanalyzer and scanning transmission electron microscope with X-ray analytical capabilities. Chlorine was found together with...
L.H. Filipek, P. K. Theobald Jr.
1981, Journal of Geochemical Exploration (14) 155-174
Samples of minus-80-mesh (<180 μm) stream sediment, rock containing exposed fracture coatings, and jarosite and chrysocolla were collected from an area surrounding the North Silver Bell porphyry Cu deposit near Tucson, Arizona. The samples were subjected to a series of extractions in a scheme originally designed for use on...
Richard D. Ballard, Jean Francheteau, Tierre Juteau, Claude Rangan, William Normark
1981, Earth and Planetary Science Letters (55) 1-10
Photographs obtained by the ANGUS survey system at 21°N reveal many similarities to the geological processes delineated at other spreading centers and in particular those observed in the Galapagos Rift at 86°W. The region of recent volcanism is restricted to a narrow zone (Zone 1) approximately 1 km wide. This...
M.S. Walton
1981, Underground Space (5) 287-289
[No abstract available]...
J.A. Leenheer, H. A. Stuber
1981, Environmental Science & Technology (15) 1467-1475
The migration through soil of organic solutes in an oil-shale process water (retort water) was studied by using soil columns and analyzing leachates for various organic constituents. Retort water extracted significant quantities of organic anions leached from ammonium-saturated-soil organic matter, and a distilled-water rinse, which followed retort-water leaching, released additional...
Robert O. Castle, Michael R. Elliot, Thomas D. Gilmore, Robert K. Mark, Evelyn B. Newman, John C. Tinsley III, D.D. Jackson, W.B. Lee, C.-C. Liu
1981, Science (213) 246-247
We disagree with several of the arguments cited by Jackson et al. in support of their view that "the inference of wide-spread aseismic uplift in southern California is not justified" (1). Specifically, the striking correlation shown in figure 1 of Jackson et al. (1) is an artifact of the construction,...
G.H. Wood Jr.
1981, Geological Society of America Bulletin (92) 520-528
Nine estimates of the coal resources of the United States have been published in the past 71 years. Although many details of these estimates differ markedly, the 1913, 1922, and 1974 estimates are surprisingly similar. Some differences are due to increased geologic data,...
D. Bukry
1981, Geo-Marine Letters (1) 57-63
Cretaceous silicoflagellate assemblages from Arctic Ocean USGS Core 437 show Vallacerta siderea the most abundant species; most species of Lyramula disappear halfway up the core; only L. burchardae, n. sp., persists into the upper sections. These occurrences are untypical of the few documented Cretaceous assemblages from other areas. A Campanian...
Diane E. Moore, J. G. Liou, B.-S. King
1981, Chemical Geology (33) 237-263
As part of an investigation of blueschist-facies mineral parageneses in pebbles and matrix of some Franciscan metaconglomerates of the Diablo Range, California, textural and major-element chemical analyses were conducted on a number of igneous pebbles that comprise a range of rock types from granite and dacite to gabbro and basalt....
D. A. Lindsey, Richard K. Glanzman, Charles W. Naeser, Douglas J. Nichols
1981, American Association of Petroleum Geologists Bulletin (65) 251-260
The basin fill beneath the Sevier Desert of western Utah contains evaporites that were deposited in a broad closed basin. All of the basin fill penetrated by the Gulf Oil 1 Gronning contains abundant volcanic detritus and its alteration products of Cenozoic age. Fission-track dating of tuffaceous sandstone yields ages...
J.W. Valley, J. R. O’Neil
1981, Geochimica et Cosmochimica Acta (45) 411-419
The fractionation of 13C between calcite and graphite, Δ(Cc-Gr). is consistently small (2.6–4.8 permil) in 34 assemblages from upper amphibolite- and granulite-facies marbles of the Grenville Province. In 25 samples from the Adirondack Mountains, New York, it decreases regularly with increasing metamorphic temperature. The fractionations are independent of absolute δ13C values...
D.P. Adam, A.D. Mahood
1981, Geological Society of America Bulletin (92) 839-844
Many Chrysophyte algae produce morphologically distinctive, siliceous, microscopic cysts during a resting stage of their life cycles; these cysts are often preserved in sediments. Scanning electron microscopy and Nomarski optics permit much more detailed observation of these cysts than was heretofore possible. We...
Herman A. Karl, D.E. Drake, D.A. Cacchione
1981, Geo-Marine Letters (1) 243-248
Surface currents influenced by a wind-driven upwelling event in San Pedro Bay moved total suspended matter (TSM) confined to the inner shelf on 19 April 1978 seaward, so that by 27 April surface TSM had increased over the outer shelf. Near-bottom concentrations of TSM also increased across the shelf during...
W. Back, J.M. Lesser
1981, Journal of Hydrology (51) 119-130
Two critical objectives of water management in the Yucatan are: (1) to develop regional groundwater supplies for an expanding population and tourism based on the Mayan archeological sites and excellent beaches; and (2) to control groundwater pollution in a chemically sensitive system made...
N.J. Susak, D.A. Crerar, T.C. Forseman, J.L. Haas Jr.
1981, Review of Scientific Instruments (52) 428-431
A simple, inexpensive spectrophotometric cell was designed for use with aqueous solutions for which temperature is a maximum of 325??C and pressure, 28 MPa. The cell has an internal volume of 5 ml and a path length of 1.31 cm. Each furnace assembly is 120 mm in diameter ?? 150...
Charles J. Robinove
1981, Remote Sensing of Environment (11) 231-244
The use of multispectral reflectance data as surrogates for land attributes must be done within strict rules of logic and with a recognition of judgmental factors such as the use of a priori or a posteriori classification schemes. The naming and describing of spectral classes as surrogates of information classes...
V.E. Bondybey, T.J. Sears, T.A. Miller, C. Vaughn, J.H. English, R.S. Shiley
1981, Chemical Physics (61) 9-16
The electronic absorption and laser excited, wavelength resolved fluorescence spectra of the title cation have been observed in solid Ne matrix and vibrationally analysed. The vibrational structure of the excited B2A2??? state shows close similarity to the parent compound. The X2E??? ground state structure is strongly perturbed and irregular owing...
Roy D. Montgomery, George Stein Jr., Meliton N. Novilla, Sarah S. Hurley, Robert J. Fink
1981, Avian Diseases (25) 207-213
An outbreak of duck virus enteritis occurred in a flock of captive waterfowl composed of mallards (Anas platyrhynchos), black ducks (Anas rubripes), and Canada geese (Branta canadensis). Although all three species were housed together, morbidity and mortality were confined to the 227 black ducks and Canada geese, of which 180...
R. W. Kistler, S.E. Swanson
1981, Journal of Geophysical Research Solid Earth (86) 10489-10501
Metamorphosed Mesozoic volcanic rocks from the east-central Sierra Nevada range in composition from basalt to rhyolite and have ages, based on whole rock Rb-Sr and U-Pb zircon dating, of about 237–224, 185, 163, 134, and 100 m.y. The major plutons of the batholith in this area are of Triassic (215–200...
S.L. Bressler
1981, Earth and Planetary Science Letters (55) 53-64
Stable paleomagnetic directions have been obtained from seven sites spanning much of the 7-km-thick middle Proterozoic Uinta Mountain Group. The characteristic magnetization is carried partly by detrital(?) and secondary specularite and partly by hematite pigment. Preliminary paleomagnetic poles for six of...
D. L. Gautier
1981, American Association of Petroleum Geologists Bulletin (65) 1146-1159
In the northern Great Plains, large quantities of biogenic methane are contained at shallow depths in Cretaceous marine mudstones. The Gammon Shale and equivalents of the Milk River Formation in Canada, which comprise most sediments deposited offshore during the Eagle-Telegraph Creek regression, are typical of such gas-bearing rocks. At Little...
T.G. Lovering
1981, Journal of Geochemical Exploration (14) 69-81
Fragments of silicified rocks that are associated with deposits of base and precious metals may be transported as cobbles and pebbles in alluvium far downstream from the source outcrop. These rocks commonly exhibit certain characteristics which distinguish them from other detrital siliceous material, and may thus serve as a useful...
Michael H. Bothner, E.C. Spiker, P. P. Johnson, R.R. Rendigs, P. J. Aruscavage
1981, Journal of Sedimentary Petrology (51) 281-292
An area of fine-grained sediment approximately 170 km x 74 km in size, located in water depths between 60 m and 150 m, south of Martha's Vineyard, Mass., is a site of modern sediment deposition. The 14C ages systematically increase with sediment depth from about 1,300 years B.P. at the...