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Page 4637, results 115901 - 115925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Gas exchange rates across the sediment-water and air-water interfaces in south San Francisco Bay
Blayne Hartman, Douglas E. Hammond
1984, Journal of Geophysical Research C: Oceans (89) 3593-3603
Radon 222 concentrations in the water and sedimentary columns and radon exchange rates across the sediment-water and air-water interfaces have been measured in a section of south San Francisco Bay. Two independent methods have been used to determine sediment-water exchange rates, and the annual averages of these methods agree within...
Temporal dynamics and ecological significance of salinity stratification in an estuary (south San-Francisco Bay, USA)
James E. Cloern
1984, Oceanologica Acta (7) 137-141
South San Francisco Bay (USA) has periodic variations in salinity stratification that coïncide with neap-spring tidal variations during the winter "wet" season, but it remains well-mixed during summer and fall. The degree of salinity stratification, and timing of stratification events, can be predicted from a simple empirical function of river...
Index for reports released through the Department of Energy, DOE National Uranium Resource Evaluation Program, and Atomic Energy Commission
U.S. Department of Energy
1984, Report
The U.S. Government's National Uranium Resource Evaluation (NURE) Program commenced in 1974 and was last comprehensively reported on in An Assessment Report on Uranium in the United States of America, GJO-111(80), dated October 1980. During the seven years of the NURE Program, an unprecedented quantity of geoscience information was gathered...
Summary of water-resources activities of the U.S. Geological Survey in Colorado: fiscal year 1984
Water Resources Division, U.S. Geological Survey
1984, Report
Water-resources investigations of the U.S. Geological Survey in Colorado consist of collecting water-resources data and conducting interpretive hydrologic investigations. The water-resources data and the results of the investigations are published or released by either the U.S. Geological Survey or by cooperating agencies. This report describes the water- resources investigations in...
Response of northern San Francisco Bay to riverine inputs of dissolved inorganic carbon, silicon, nitrogen and phosphorus
Laurence E. Schemel, Dana D. Harmon, Stephen W. Eager, David H. Peterson
Victor S. Kennedy, editor(s)
1984, Book chapter, The estuary as a filter
Estuarine processes can be effective in modifying (filtering) distributions of dissolved inorganic forms of carbon (DIC), silicon (DIS), nitrogen (DIN), and phosphorus (DIP) in northern San Francisco Bay. During winter, high inflow from the Sacramento-San Joaquin river system supplied these nutrients to the estuary at rates that exceeded potential rates...
Finite element solution methods for circulation in estuaries
Roy A. Walters
J. P. Laible, C.A. Brebbia, W. Gray, G. Pinder, editor(s)
1984, Book chapter, Finite elements in water resources
In this paper, the shallow water equations are used to approximate the depth-mean circulation in estuaries.  The time scales of the motions can be conveniently divided into three ranges: 1) low-frequency (residual) variations with periods of two days or longer, 2) tidal-frequency variations, and 3) high-frequency variations with periods of...
Truncation of the Appalachian Piedmont beneath the Coastal Plain of Alabama: Evidence from new magnetic data
J. Wright Horton, Jr., Isadore Zietz, Thorton L. Neathery
1984, Geology (12) 51-55
A new aeromagnetic survey of a part of southern Alabama reveals that magnetic signatures of the Appalachian Piedmont are truncated by a major magnetic lineament beneath the Gulf Coastal Plain. Mylonitic rocks have been recovered from a drillhole along this lineament, which is probably a fault zone of late Paleozoic...
Statistical relations among earthquake magnitude, surface rupture length, and surface fault displacement
Manuel G. Bonilla, Robert K. Mark, James J. Lienkaemper
1984, Bulletin of the Seismological Society of America (74) 2379-2411
In order to refine correlations of surface-wave magnitude, fault rupture length at the ground surface, and fault displacement at the surface by including the uncertainties in these variables, the existing data were critically reviewed and a new data base was compiled. Earthquake magnitudes were redetermined as necessary to make them...
Canyon-filling lavas and lava dams on the Boise River, Idaho, and their significance for evaluating downcutting during the last 2 million years
Keith A. Howard, John W. Shervais, E.H. McKee
Bill Bonnichsen, R.M. Breckenridge, editor(s)
1984, Report, Cenozoic geology of Idaho
Basalts that periodically dammed the Boise River and its South Fork over the last 2 million years reveal the canyon history and illustrate how lava interacted with impounded river water. Intracanyon basalt flows record a granite canyon successively filled by lava and then recut at least five times in the...
Bioavailability of Pb and Zn from mine tailings as indicated by erythrocyte aminolevulinic acid dehydratase (ALA-D) activity in suckers (Pisces: catostomidae)
Christopher J. Schmitt, F. James Dwyer, Susan E. Finger
1984, Canadian Journal of Fisheries and Aquatic Sciences (41) 1030-1040
The activity of the erythrocyte enzyme δ-aminolevulinic acid dehydratase (ALA-D) was measured in 35 catostomids (black redhorse, Moxostoma duquesnei; golden redhorse, M. erythrurum; northern hogsucker, Hypentelium nigricans) collected from three sites on a stream contaminated with Pb-, Cd-, and Zn-rich mine tailings and from an uncontaminated site upstream. Enzyme activity was expressed in terms...
Annual report of the USGS Mission, Kingdom of Saudi Arabia, for the first year of the seventh extension of the USGS-MPMR work agreement : fiscal year 1403/04, 1 Rajab 1403 - 30 Jumad Thani 1404 (14 April 1983 - 1 April 1984)
U.S. Geological Survey Saudi Arabia Mission, Saudi Arabia. Deputy Ministry for Mineral Resources
1984, Report
An interagency report prepared by the U.S. Geological Survey Saudi Arabian Mission for the Ministry of Petroleum and Mineral Resources, Kingdom of Saudi Arabia. The work on which this report was based was performed in accordance with a cooperative agreement between the U.S. Geological Survey and the Ministry of Petroleum...