Relationships between basic soils-engineering equations and basic ground-water flow equations
Donald G. Jorgensen
1980, Water Supply Paper 2064
The many varied though related terms developed by ground-water hydrologists and by soils engineers are useful to each discipline, but their differences in terminology hinder the use of related information in interdisciplinary studies. Equations for the Terzaghi theory of consolidation and equations for ground-water flow are identical under specific conditions....
Sulfate reduction in ground water of southeastern Montana
William S. Dockins, G.J. Olson, Gordon A. McFeters, S.C. Turbak, Roger W. Lee
1980, Water-Resources Investigations Report 80-9
Ground water in southeastern Montana was investigated to determine if sulfide production was bacterially mediated. Sulfate—reducing bacteria were detected in 25 of 26 ground—water samples in numbers ranging from 2.0 x 101 to greater than 2.4 x 104 bacteria per 100 milliliters. Stable sulfur isotope fractionation studies indicate a biological...
Bibliography for topical studies of ground motion, fault mechanics, and seismic engineering (January 1977 - September 1979)
Kaye M. Walz
1980, Open-File Report 80-906
Water resources data for Arizona, water year 1979
Water Resources Division, U.S. Geological Survey
1980, Water Data Report AZ-79-1
Water resources data for the 1978 water year for Arizona consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; measurements of ground-water levels; and quality of water from selected wells. Also included are discharge data for crest-stage partial-record stations...
Polarization of bay-type geomagnetic disturbances in the Rio Grande Rift, New Mexico
James N. Towle
1980, Open-File Report 80-377
Map data catalog
Water Resources Division, U.S. Geological Survey
1980, Report
The National Cartographic Information Center (NCIC) is the information branch of the National Mapping Program, U.S. Geological Survey. NCIC's mission is to help users gain better, faster, low-cost access to the cartographic holdings of Federal, State, and private agencies. This catalog tells how to order a wide range of mapping byproducts...
Tidal-wetland deposits of the Sacramento - San Joaquin Delta, California
B.F. Atwater, D. F. Belknap
M.E. Field, A.H. Buoma, I.P. Coburn, R.G. Douglas, J.C. Ingle, editor(s)
1980, Book chapter, Quaternary depositional environments of the Pacific Coast
No abstract available....
Trends in the distribution of recent foraminifera in San Francisco Bay
R.E. Arnal, P. J. Quinterno, T. J. Conomos, Ralph Gram
1980, Cushman Foundation Special Publication (19) 17-39
Much of the bathymetry of the southern part of San Francisco Bay reflects the drainage pattern of late Pleistocene streams. Holocene estuarine silt and clay cover most of the bay floor; relict eolian and deltaic sand occurs along the eastern shore; sandy patches are present in the main channel owing...
Coastal ocean dynamics
J. Allen, R. Beardsley, W. Brown, D.A. Cacchione, R. Davis, C. Friehe, W. Grant, Adriana Huyer, J. Irish, M. Janopaul, A. Williams, Clinton D. Winant
1980, Eos, Transactions, American Geophysical Union (64) 538-540
The main objective of the Coastal Ocean Dynamics Experiment (CODE) is to observe and describe the response of continental shelf waters to strong atmospheric forcing in a relatively simple geomorphological setting. In order to achieve this goal, CODE has been designed (1) to define the different space and time scales...
Coincident sediment slump/clathrate complexes on the U.S. Atlantic continental slope
George B. Carpenter
1980, Geo-Marine Letters (1) 29-32
High-resolution seismic reflection data recorded on the continental slope off the east coast of the United States have revealed instances of sediment mass movement (slumps) which appear to occur above clathrate accumulations. The slumping is believed to be related to the liberation of free gas by clathrate decomposition and consequent...
Some perspectives on heavy metal concentrations in shellfish and sediment in San Francisco Bay, California
W.L. Bradford, S. N. Luoma
R.A. Baker, editor(s)
1980, Book chapter, Contaminants and Sediments, v. 2
No abstract available....
A survey of image processing developments in support of remote sensing
Brian P. Bauer
1980, Report
New algorithm developments for image processing (IP) will occur throughout the 1980's, resulting from evolution in computer hardware and sensors as well as continuing research. This report will describe the areas of algorithm development that are occurring in applications, research, and operational environments. Included is an overview of image processing...
Coastal zone studies: A holistic approach
James B. Johnston, Martha W. Young, Carolyn O. French
1980, Conference Paper, Balancing natural resources allocations : Transactions of the forty-fifth North American wildlife and natural resources conference
No abstract available....
New evidence for the age of the Quantico Formation of Virginia
Louis Pavlides, J. Pojeta Jr., M. Gordon Jr., R.L. Parsley, A.R. Bobyarchick
1980, Geology (8) 286-290
A new fossil locality within the Quantico Formation of the Virginia Piedmont in Dale City, Virginia, about 40 km south of Washington, D.C., has yielded crinoids and a cephalopod that re-establishes an age younger than Cambrian for this formation. On the basis of regional considerations and the work of investigators...
Status of projects in Minnesota, fiscal year 1980
M.M. Diedrich, J. A. Jannis
1980, Report
No abstract available....
Composition and origin of phosphorite deposits of the Blake Plateau
Frank T. Manheim, R. M. Pratt, P.F. McFarlin
1980, Conference Paper, Marine phosphorites - Geochemistry, occurrence, genesis : Symposium at the 10th international congress on sedimentology, Jerusalem, July 1978, proceedings
An area of about 22 000 km2 on the N Blake Plateau contains an estimated 2 billion tonnes of phosphorite concretions, and about 1.2 billion tonnes of mixed ferromanganese-phosphorite pavement. The phosphorite consists primarily of carbonate-fluorapatite, some calcite, minor quartz and other minerals. Drilling and other evidence show that the phosphorite...
Neogene diatoms from Petersburg, Virginia
George W. Andrews
1980, Micropaleontology (26) 17-48
Sixty-two diatom taxa have been identified from a diatomaceous sandy clay that crops out near the outlet of Wilcox Lake, Petersburg. Virginia. These diatoms are mostly cosmopolitan marine forms, but some species suggest deposition in brackish water that had a freshwater inflow. The regional stratigraphy, as well as the pelecypods...
Geological investigation of the Dufek intrusion, Pensacola Mountains, Antarctic
A. B. Ford, Richard L. Reynolds, Carl Huie, S. J. Boyer
1980, Antarctic Journal of the United States (14) 9-11
No abstract available....
Crystals of coexisting alunite and jarosite, Goldfield, Nevada
William J. Keith, L. Calk, R. P. Ashley
1980, Professional Paper 1124-C
Alunite (KAl3 (SO4 )2(OH)6) and jarosite (KFe3(SO4)2(OH)6) coexist in optically continuous crystals in a sample from the Goldfield mining district, Esmeralda County, Nev. Beam scans with an electron microprobe indicate that no intermediate minerals of the solid-solution series alunite-jarosite occur in these crystals. An Eh-pH diagram demonstrating the equilibrium relations...
Bald eagles and the management program at Swan Lake National Wildlife Refuge
Curtice R. Griffin, Thomas S. Baskett, Rollin D. Sparrowe
1980, Conference Paper, Transactions of the 45th North American wildlife and natural resources conference
No abstract available....
Potassium-argon ages from the Mount Taylor Volcanic Field, New Mexico
Peter W. Lipman, Harald H. Mehnert
1980, Professional Paper 1124-B
Fourteen new K-Ar dates for volcanic rocks of the Mount Taylor field, New Mexico, indicate that most activity occurred between 4.3 and 1.5 m.y. (million years) ago. Peak activity was at about 3.0-2.5 m.y., both on the central andesite-rhyolite shield volcano and on the surrounding alkali basalt-trachyte volcanic plateau, and...
Geology of the Ridge and Valley Province, northwestern New Jersey and eastern Pennsylvania
Jack B. Epstein
1980, Conference Paper, Field studies of New Jersey geology and guide to field trips; 52nd annual meeting of the New York State Geological Association
The rocks seen in this segment of the field trip range in age from Middle Ordovician to Middle Devonian and constitute a deep basin-continental-shallow shelf succession. Within this succession, three lithotectonic units, or sequences of rock that were deformed semi-independently of each other, have somewhat different structural characteristics. Both the...
The Vermilion Granitic Complex — A new name for old rocks in northern Minnesota
D. L. Southwick, P.K. Sims
1980, Professional Paper 1124-A
The name Vermilion Granitic Complex is introduced for the heterogeneous granitic and migmatitic rocks of Archean (formerly called Precambrian W) age that occur north of the Vermilion district and south of the Kabetogama peninsula in northern Minnesota. The complex consists of the following subdivisions: Lac La Croix Granite, granite-rich migmatite,...
Drake Peak — A structurally complex rhyolite center in southeastern Oregon
Ray E. Wells
1980, Professional Paper 1124-E
The Drake Peak volcanic center of middle Miocene age, located about 25 km northeast of Lakeview, Oreg., is a structurally complex eruptive center that resulted from several episodes of intrusion and extrusion of rhyolite. Two thousand meters of andesite and basalt flows, lahars, and volcaniclastic rocks of late Eocene age,...
Uranium contents of glassy and devitrified andesites and dacites, Mount Mazama, Oregon
D. C. Noble, W.I. Rose, Robert A. Zielinski
1980, Economic Geology (75) 127-129
By direct comparison of devitrified and granophyrically crystallized specimens with nonhydrated glassy materials from the same units, Rosholt and coworkers (Rosholt and Noble, 1969; Rosholt et al., 1971) showed that specimens of primarily crystallized but otherwise unaltered peralkaline and subalkaline rhyolite from the western United States had lost from 30...
