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Page 5755, results 143851 - 143875

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Tectonics of the North American Cordillera near the Fortieth Parallel
Philip B. King
1978, Tectonophysics (47) 275-294
The North American Cordillera near the Fortieth Parallel consists of the following tectonic units: 1. (A) To the east is a reactivated cratonic area, in the Southern Rocky Mountains and Colorado Plateau, in which the supracrustal rocks (Cambrian to Cretaceous) were broadly deformed during the late Cretaceous-Paleocene Laramide orogeny, and...
Structures developed in fault gouge during stable sliding and stick-slip
J. Byerlee, V. Mjachkin, R. Summers, O. Voevoda
1978, Tectonophysics (44) 161-171
We carried out a detailed study of the structural changes that occurred in a thin layer of quartz gouge sheared between saw cuts in granite cylinders at pressures of 2 and 4.7 kbar. At low pressure the material deformed stably, but at high pressure deformation was unstable. During deformation shear...
Effects of No. 2 fuel oil on common eider eggs
P.H. Albers, Robert C. Szaro
1978, Marine Pollution Bulletin (9) 138-139
An oil spill near a breeding colony could result in the transfer of oil from the plumage and feet of incubating birds to their eggs. Microlitre amounts of No. 2 fuel oil were applied externally to common eider eggs in an island breeding colony in Maine. Clutches of eggs treated...
Arctic continental shelf morphology related to sea-ice zonation, Beaufort Sea, Alaska
E. Reimnitz, L. Toimil, P. Barnes
1978, Marine Geology (28) 179-210
Landsat-1 and NOAA satellite imagery for the winter 1972–1973, and a variety of ice and sea-floor data were used to study sea-ice zonation and dynamics and their relation to bottom morphology and geology on the Beaufort Sea continental shelf of arctic Alaska.In early winter the location of the boundary between...
Correlation and zonation of miocene strata along the atlantic margin of North America using diatoms and silicoflagellates
W.H. Abbott
1978, Marine Micropaleontology (3) 15-34
Six Atlantic Miocene siliceous microfossil zones are proposed based on onshore and offshore samples from the United States Atlantic Margin. Diatoms and silicoflagellates are used to establish the zones. These zones are from oldest to youngest: 1. Zone I Actinoptychus heliopelta Concurrent Range Zone - Early Miocene 2. Zone II...
Matrix effects on the determination of manganese in geological materials by atomic-absorption spectrophotometry under different flame conditions
R. F. Sanzolone, T. T. Chao
1978, Talanta (25) 287-290
Suppression caused by five of the seven matrix elements studied (Si, Al, Fe, Ca and Mg) was observed in the atomic-absorption determination of manganese in geological materials, when synthetic solutions and the recommended oxidizing air—acetylene flame were used. The magnitude of the suppression effects depends on (1) the kind and...
Atomic-absorption determination of beryllium in geological materials by use of electrothermal atomization
E.Y. Campbell, F.O. Simon
1978, Talanta (25) 251-255
A method is described for the atomic-absorption determination of beryllium in geological materials, that utilizes electrothermal atomization after a separation by solvent extraction. Samples are decomposed with hydrofluoric acid and nitric acid in Teflon-lined pressure decomposition vessels. Beryllium is isolated by its extraction as beryllium acetylacetonate at pH 8 into...
Definitions of components of the Master Water Data Index maintained by the National Water Data Exchange
Robert A. Perry, Charles J. Lewis
1978, Open-File Report 78-183
The Master Water Data Index (MWDI) is a computerized data base developed and maintained by the National Water Data Exchange (NAWDEX). The MWDI contains information about water-data collection sites. This information includes: the identification of sites for which water data are available, the location of these sites, the type of...
The biology of Salt Wells Creek and its tributaries, southwestern Wyoming
Morris J. Engelke Jr.
1978, Water-Resources Investigations Report 78-121
A description of aquatic organisms and biological communities is presented for Salt Wells Creek, a plains stream in the Green River basin. The description includes seasonal population fluctuations of benthic organisms and algae, the food pyramid, and nutrient relations between various types of plants and animals. The algae and stream...
Stratigraphic test well, Nantucket Island, Massachusetts
David W. Folger, J.C. Hathaway, R. A. Christopher, P. C. Valentine, C. W. Poag
1978, Circular 773
The U.S. Geological Survey, in cooperation with the Massachusetts Water Resources Commission and the Nantucket Conservation Foundation, continuously cored 514 m of sediment and volcanic rock in a stratigraphic and water-quality test near the geographic center of Nantucket Island. Stratified sediments were divided texturally into three zones: the upper zone...
Geologic map of the New Windsor Quadrangle, Carroll County, Maryland
G.W. Fisher
1978, IMAP 1037
The pattern of rock units in the geologic map of the New Windsor quadrangle has been affected by three distinguishable generations of folds; following the usage of Tobisch and Fleuty (1969) and Higgins (1973), the fold generations are named for localities where they are well displayed....
Report on laboratory testing of shallow sediments, Middle Atlantic Outer Continental Shelf
Daniel P. LaGatta, Karl Dalenberg, H.J. Knebel, D.A. Sangrey
1978, Open-File Report 78-578
This report contains the results of geotechnical engineering testing on cores taken by the U.S. Geological Survey to evaluate the characteristics of the sea floor within the Baltimore Canyon Trough area. The coring took place in September, 1977 aboard the R/V ANNANDALE. During the cruise (AN-01-77), 20 vibracores were taken...