Mixed-layer kerolite/stevensite from the Amargosa Desert, Nevada
Dennis D. Eberl, Blair F. Jones, Hani N. Khoury
1982, Clays and Clay Minerals (30) 321-326
Mixed-layer clays composed of randomly interstratified kerolite/stevensite occur as lake and/or spring deposits of probable Pliocene and Pleistocene age in the Amargosa Desert of southern Nevada, U.S.A. The percentage of expandable layers of these clays, determined from computer-simulated X-ray diffractograms, ranges from almost 0 to about 80%. This range in...
Exotic terranes of western California
M.O. McWilliams, D. G. Howell
1982, Nature (297) 215-217
Numerous distinct geological terranes compose the North American Cordillera1; there may be as many as 50 terranes in California alone2. Critical to deciphering the history of Cordilleran tectonic assembly is an understanding of the displacement history of individual terranes. It is therefore important to know: (1) whether a terrane has...
Comparison of techniques for estimating annual lake evaporation using climatological data
M.E. Andersen, H.E. Jobson
1982, Water Resources Research (18) 630-636
Mean annual evaporation estimates were determined for 30 lakes by use of a numerical model (Morton, 1979) and by use of an evaporation map prepared by the U.S. Weather Service (Kohler et al., 1959). These estimates were compared to the reported value of evaporation determined from measurements on each lake....
Recovery of soil and vegetation in ghost-towns in the Mojave Desert, southwestern United States
Robert H. Webb, Evelyn B. Newman
1982, Environmental Conservation (9) 245-248
No abstract available....
The 1982 eruption of El Chichon volcano, southeastern Mexico
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...
Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.
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...
Morphology, distribution, and development of submarine canyons on the United States Atlantic continental slope between Hudson and Baltimore Canyons
David C. Twichell, David G. Roberts
1982, Geology (10) 408-412
The distribution and morphology of submarine canyons off the eastern United States between Hudson and Baltimore Canyons have been mapped by long-range sidescan sonar. In this area canyons are numerous, and their spacing correlates with overall slope gradient; they are absent where the gradient is less than 3°, are 2...
Depositional setting and diagenetic evolution of some Tertiary unconventional reservoir rocks, Uinta Basin, Utah
Janet K. Pitman, T. D. Fouch, M. B. Goldhaber
1982, American Association of Petroleum Geologists Bulletin (66) 1581-1596
The Douglas Creek Member of the Tertiary Green River Formation underlies much of the Uinta basin, Utah, and contains large volumes of oil and gas trapped in a complex of fractured low-permeability sandstone reservoirs. In the southeastern part of the basin at Pariette Bench, the Eocene Douglas Creek Member is...
The winter feeding ecology and trophic relationships of marine birds in Katchemak Bay, Alaska
G.A. Sanger, R.D. Jones Jr.
1982, Report, Environmental assessment of the Alaska continental shelf: Final report of principal investigators
No abstract available ...
The importance of the environment, stress, and disease relationship in aquaculture
Adam G. Fox
1982, Conference Paper, Proceedings of the eleventh U.S.-Japan meeting on aquaculture, salmon enhancement
No abstract available ...
Current-induced sediment movement in the deep Florida Straits: Observations
Mark Wimbush, Laszlo Nemeth, Barton Birdsall
Kent A. Fanning, Frank T. Manheim, editor(s)
1982, Book chapter, The dynamic environment of the ocean floor
No abstract available...
DDT poisoning in a Cooper's hawk collected in 1980
Richard M. Prouty, Oliver H. Pattee, Shelia K. Schmeling
1982, Bulletin of Environmental Contamination and Toxicology (28) 319-321
In April 1980, a Cooper's hawk (Accipiter cooperii) was found on the ground in Lakewood, Colorado, unable to fly and in convulsion. The bird died shortly thereafter. The hawk was packed in dry ice and shipped air express to the Fish and Wildlife Service, U. S. Department of the Interior,...
On the tectonics and metallogenesis of West Africa: a model incorporating new geophysical data
David A. Hastings
1982, Geoexploration (20) 295-327
The gold, diamond and manganese deposits of Ghana have attracted commercial interest, but appropriate geophysical data to delineate the tectonic setting of these and other deposits have been lacking until recently. Recent gravity surveys, however, now cover about 75% of the country. When used in a synthesis of the sometimes...
Preliminary correlations of MAGSAT anomalies with tectonic features of Africa
David A. Hastings
1982, Geophysical Research Letters (9) 303-306
An overview of the MAGSAT scalar anomaly map for Africa has suggested a correlation of MAGSAT anomalies with major crustal blocks of uplift or depression and different degrees of regional metamorphism. The strongest MAGSAT anomalies in Africa are closely correlated spatially with major tectonic features. Although a magnetic anomaly caused...
Characterization of tropospheric desert aerosols at solar wavelengths by multispectral radiometry from Landsat
Joseph Otterman, R. S. Fraser, O. P. Bahethi
1982, Journal of Geophysical Research C: Oceans (87) 1270-1278
Characteristics of tropospheric desert aerosols are derived by comparing nadir spectral reflectivities computed from the radiative transfer models with reflectivities measured from Landsat. Over the ocean, reflectivities are compared, but over land the comparison is carried out by determining the ratios of the nadir reflectivity of the surface-atmosphere system over...
Case report: lead poisoning in common loons (Gavia immer)
Louis N. Locke, Stephen M. Kerr, D. Zoromski
1982, Avian Diseases (26) 392-396
Two emaciated common loons (Gavia immer) were believed to have died of lead poisoning when fragments of fishing lines and lead sinkers were discovered in their stomachs. Later a third emaciated loon, which had only the remnants of fishing line in its stomach, was suspected of being a possible lead-poisoning...
Assessing mesquite-grass vegetation condition from Landsat
Kirk C. McDaniel, Robert H. Haas
1982, Photogrammetric Engineering and Remote Sensing (48) 441-450
Landsat multispectral scanner (MSS) band values, band ratios, and vegetation index models were compared with selected rangeland vegetation parameters collected at six test sites within the honey mesquitellotebushlmixed grass association in north-central Texas. The comparisons at four dates showed that two vegetation index models, TV16 and GVI, are highly correlated...
Use of Landsat data to evaluate lesser prairie chicken habitats in western Oklahoma
Richard W. Cannon, Fritz L. Knopf, Lawrence R. Pettinger
1982, Photogrammetric Engineering and Remote Sensing (46) 915-922
Landsat digital data were used to evaluate lesser prairie chicken (Tympanuchus pallidicinctus) habitats in western Oklahoma. Data for 7 (4,144 ha) study areas, 4 in shinnery oak (Quercus havardii), and 3 in sand sagebrush (Artemisia filifolia) rangeland, were analyzed using the Interactive Digital Image Manipulation System at the EROS Center....
Analytical electron microscopy in mineralogy; exsolved phases in pyroxenes
Gordon L. Nord Jr.
1982, Ultramicroscopy (8) 109-119
Analytical scanning transmission electron microscopy has been successfully used to characterize the structure and composition of lamellar exsolution products in pyroxenes. At operating voltages of 100 and 200 keV, microanalytical techniques of x-ray energy analysis, convergent-beam electron diffraction, and lattice imaging have been used to chemically and...
Lignite and the Midway-Wilcox stratigraphic boundary, Alabama and Mississippi
C. R. Meissner Jr., S. E. Heermann
1982, Open-File Report 82-673
No abstract available....
Digital model of predevelopment flow in the Tertiary limestone (Floridan) aquifer system in west-central Florida
Paul D. Ryder
1982, Water-Resources Investigations Report 81-54
A computer model was calibrated to approximate predevelopment flow conditions in a multilayered aquifer system in 10,600 square miles in west-central Floria. The lowermost aquifer, called the Floridan aquifer, is confined in most of the study area and consists of carbonate rocks ranging up to 1,300 feet thick. The Floridan...
Introduction; seismology and earthquake engineering in Mexico and Central and South America
A. F. Espinosa
1982, Earthquake Information Bulletin (USGS) (14) 4-6
Potential secondary hazards of Avitrol baits to sharp-shinned hawks and american kestrels
Nicholas R. Holler, Edward W. Schafer Jr.
1982, Journal of Wildlife Management (46) 457-462
Avitrol© is the registered trade name of a number of proprietary bird control products containing the active ingredient 4-aminopyridine (4-AP). Several formulations of Avitrol are available to pest control applicators for use in agricultural areas. Although individual treated bait particles contain from 0.5 to 3.0% 4-AP, the amount present in...
Digital observations on the use of satellite remote sensing imagery with regard to Chinese alligator habitat
M. E. Watanabe, Alta S. Walker, H. Churchien
1982, Ziran Zazhi (5) 852-854
No abstract available....
Oscillation of continental shelf sediments caused by waves
J. N. Suhayda, J. M. Coleman, Thomas Whelan, L. E. Garrison
Kent A. Fanning, Frank T. Manheim, editor(s)
1982, Book chapter, The dynamic environment of the ocean floor
