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Not all publications have extents, not all extents are completely accurate
Ground-water appraisal of sand plains in Benton, Sherburne, Stearns, and Wright counties, central Minnesota
Gerald F. Lindholm
1980, Open-File Report 80-1285
Surficial-sand aquifers in 960 square miles of central Minnesota have been studied to determine the occurrence, availability, and suitability of the surficial aquifer as a source of water. The aquifer is being increasingly developed for irrigation. During the drought of 1976, nearly 24,000 acre-feet of ground water was withdrawn for irrigation,...
Water-resources data collected in the Devils Hole area, Nye County, Nevada, 1977-1978
R.L. Carson
1980, Open-File Report 80-772
This report presents water data collected at Devils Hole and vicinity for July 1977 through June 1978 to observe the effects of irrigation pumping on the pool level in Devils Hole. The pool contains the endangered species of pupfish, Cyprinodon diabolis. The report presents data on fluctuations in water level...
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...
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...
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...
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...
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...
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...