LANDSAT M. S. S. IMAGE MOSAIC OF TUNISIA.
J. C. Boswell-Thomas
Cook Jerald J., editor(s)
1984, Conference Paper, Proceedings of the International Symposium on Remote Sensing of Environment
The Landsat mosaic of Tunisia funded by USAID for the Remote Sensing Laboratory, Soils Division, Ministry of Agriculture, Tunisia, was completed by the USGS in September 1983. It is a mixed mosaic associating digital corrections and enhancements to manual mosaicking and corresponding to the Tunisian request for high resolution and...
TECHNIQUE FOR ENHANCING DIGITAL COLOR IMAGES BY CONTRAST STRETCHING IN MUNSELL COLOR SPACE.
Fred A. Kruse, Gary L. Raines
1984, Conference Paper
The Munsell color system can be used to further enhance the appearance of high-quality digital color-composite images. A color-balanced 'standard' color-composite image is first produced using any desired contrast stretching algorithm. The stretched digital data are then transformed into the cylindrical Munsell color space. An enhanced version of a color-composite...
Ferromanganese crust resources in the Pacific and Atlantic Oceans
R.F. Commeau, A. Clark, Chad Johnson, F.T. Manheim, P. J. Aruscavage, C.M. Lane
1984, Conference Paper, Oceans '84 : Conference record : Industry, government, education - Designs for the future
Ferromanganese crusts on raised areas of the ocean floor have joined abyssal manganese nodules and hydrothermal sulfides as potential marine resources. Significant volumes of cobalt-rich (about 1% Co) crusts have been identified to date within the US Exclusive Economic Zone (EEZ) in the Central Pacific: in the NW Hawaiian Ridge...
Synchrotron radiation determination of elemental concentrations in coal
J.R. Chen, N. Martys, E. C. T. Chao, J.A. Minkin, C.L. Thompson, A.L. Hanson, H.W. Kraner, K.W. Jones, B.M. Gordon, R.E. Mills
1984, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (3) 241-245
The variations with depth of the elemental concentrations in vitrinites in a series of vitrites have been determined using radiation from the Cornell high energy synchrotron source. All of the vitrites were selected from a single drill core sample of coal from the Emery coalfield, Utah. The results are compared...
Old seismographs still in operation in Northern California
E. McCormick
1984, Earthquake Information Bulletin (USGS) (16) 194-195
Felt earthquakes are frequent on the Cape Mendocino end of the northern San Andreas fault in Humboldt County, California. For this reason a Bosch-Omori seismograph was installed by Horace Winslow of the U.S Coast and Geodetic Survey in teh old city jail in Ferndale as early as 1932. In 1981...
Reaction rate kinetics for in situ combustion retorting of Michigan Antrim oil shale
M. Rostam-Abadi, R.W. Mickelson
1984, Conference Paper, Preprints
The intrinsic reaction rate kinetics for the pyrolysis of Michigan Antrim oil shale and the oxidation of the carbonaceous residue of this shale have been determined using a thermogravimetric analysis method. The kinetics of the pyrolysis reaction were evaluated from both isothermal and nonisothermal rate data. The reaction was found...
Double-porosity models for a fissured groundwater reservoir with fracture skin
Allen F. Moench
1984, Water Resources Research (20) 831-846
Theories of flow to a well in a double-porosity groundwater reservoir are modified to incorporate effects of a thin layer of low-permeability material or fracture skin that may be present at fracture-block interfaces as a result of mineral deposition or alteration. The commonly used theory for flow in double- porosity...
A review of progress in understanding the fluid geochemistry of the Cerro Prieto geothermal system
A.H. Truesdell, N.L. Nehring, J. M. Thompson, C. J. Janik, T.B. Coplen
1984, Geothermics (13) 65-74
Fluid geochemistry has played a major role in our present understanding of the Cerro Prieto geothermal system. Fluid chemical and isotopic compositions have been used to indicate the origin of water, salts and gases, original subsurface temperature and fluid flow, fluid-production mechanisms, and production-induced aquifer boiling and cold-water entry. The...
Nestling diet and feeding rates of rhinoceros auklets in Alaska
Scott A. Hatch
David N. Nettleship, Gerald A. Sanger, Paul F. Springer, editor(s)
1984, Conference Paper, Marine birds: Their feeding ecology and commercial fisheries relationships
Food brought to nestling Rhinoceros Auklets (Cerorhinca monocerata) was sampled by applying tape or cloth muzzles to the chicks and collecting the uningested food from the burrow daily. Limited data were also gathered for Tufted and Horned puffins (Fratercula cirrhata and F. corniculata). Auklet chicks received an average of 34.1...
Great Salt Lake, and precursors, Utah: The last 30,000 years
R. J. Spencer, M.J. Baedecker, H.P. Eugster, R. M. Forester, M. B. Goldhaber, B.F. Jones, K. Kelts, J. McKenzie, D.B. Madsen, S.L. Rettig, M. Rubin, C.J. Bowser
1984, Contributions to Mineralogy and Petrology (86) 321-334
Sediment cores up to 6.5 m in length from the South Arm of Great Salt Lake, Utah, have been correlated. Radiocarbon ages and volcanic tephra layers indicate a record of greater than 30,000 years. A variety of approaches have been employed to collect data used in stratigraphic correlation and lake...
Effects of weather on breeding ducks in North Dakota
M.C. Hammond, Douglas H. Johnson
1984, Fish and Wildlife Technical Report 1
The present report quantifies relations between weather and several aspects of the breeding biology of four duck species: mallard (Anas platyrhynchos), gadwall (A. strepera), blue-winged teal (A. discors), and redhead (Aythya americana). Data were obtained from two locations in North Dakota,--the J. Clark Salyer National Wildlife Refuge, intermittently during 1936-68,...
Geophysical investigation of a Suture Zone: The Border Ranges Fault of southern Alaska
M. A. Fisher, Roland E. von Huene
1984, Journal of Geophysical Research Solid Earth (89) 11333-11351
The Border Ranges fault separates structurally complex accreted Cretaceous rocks from less deformed middle or late Paleozoic and younger rocks in the Cook-Shelikof basin. Of the five types of geophysical data used to investigate this fault, gravity data give the clearest indication of its presence and crustal structure. For at...
Reflectance spectroscopy: Quantitative analysis techniques for remote sensing applications
Roger N. Clark, T. L. Roush
1984, Journal of Geophysical Research (89) 6329-6340
Several methods for the analysis of remotely sensed reflectance data are compared, including empirical methods and scattering theories, both of which are important for solving remote sensing problems. The concept of the photon mean optical path length and the implications for use in modeling reflectance spectra are presented. It is...
Modeling crater topography and albedo from monoscopic Viking orbiter images: 1. Methodology
P. A. Davis, L.A. Soderblom
1984, Journal of Geophysical Research Solid Earth (89) 9449-9457
A new photoclinometric technique for extraction of topographic data from single planetary images is presented that overcomes many previous limitations of photoclinometry. The procedure fully compensates for oblique viewing geometry prevalent in spacecraft images. Albedo variations have been one of the most serious obstacles in the application of photoclinometry to...
Deformation of clinopyroxenite: Evidence for a transition in flow mechanisms and semibrittle behavior
S. H. Kirby, A. K. Kronenberg
1984, Journal of Geophysical Research Solid Earth (89) 3177-3192
A systematic suite of constant strain rate experiments was performed on a vacuum-dried, high-purity, fine-grained clinopyroxenite using NaCl and NaF as confining media in a Griggs-type piston-cylinder apparatus. The experiments were carried out over a range of temperatures from 400° to 1100°C, strain rates from 10−3 to 10−7 s−1, and confining pressures...
Streamflow gain-and-loss and suspended-sediment characteristics of the South Platte River and three irrigation canals near Fort Morgan, Colorado
B. C. Ruddy
1984, Water-Resources Investigations Report 84-4220
A 2-year study during 1982-83 was made to document the streamflow gain-and-loss and suspended sediment characteristics of the South Platte River, Fort Morgan Canal, Upper Platte and Beaver Canal, and the Lower Platte and Beaver Canal near Fort Morgan, Colorado, prior to possible construction of the proposed Narrows Reservoir. Six...
JOINT DEVELOPMENT OF A NATIONAL 1:100,000-SCALE DIGITAL CARTOGRAPHIC DATA BASE.
George M. Callahan, Frederick R. Broome
1984, Conference Paper, Technical Papers of the American Congress of Surveying and Mapping
The U. S. Geological Survey is beginning a major new program to create a nationwide digital cartographic data base from 1:100,000-scale maps by the end of the decade. This data base will supplement the currently available 1:2,000,000-scale national data base and the selected coverage at 1:24,000-scale. It is anticipated that...
Phenotypic variation of the Mexican duck (Anas platyrhynchos diazi) in Mexico
N.J. Scott Jr., R.P. Reynolds
1984, Condor (86) 266-274
A collection of 98 breeding Mexican Ducks (Anas platyrhynchos diazi) was made in Mexico from six areas between the United States border with Chihuahua and Lake Chapala, Jalisco, in order to study geographic variation. Plumage indices showed a relatively smooth clinal change from north to south; northern populations were...
The group separation of the rare-earth elements and yttrium from geologic materials by cation-exchange chromatography
J.G. Crock, F.E. Lichte, T.R. Wildeman
1984, Chemical Geology (45) 149-163
Demand is increasing for the determination of the rare-earth elements (REE) and yttrium in geologic materials. Due to their low natural abundance in many materials and the interferences that occur in many methods of determination, a separation procedure utilizing gradient strong-acid cation-exchange chromatography is often used to preconcentrate and isolate...
Midseason mapping of sunflowers using Landsat digital data
W.H. Anderson, D.O. Ohlen, S.D. Fairaizl
1984, Journal of Wildlife Management (48) 295-298
The mapping results suggest that for the midsummer Landsat data used, there was not a sufficiently reliable relationship between Landsat-derived spectral clusters and sunflowers to allow 'automated' production of useful sunflower location maps. The occurrence of sunflower pixels in all cluster classes was a consequence of the diversity in sunflower...
Effect of censoring trace-level water-quality data on trend-detection capability
R. J. Gilliom, R.M. Hirsch, E.J. Gilroy
1984, Environmental Science & Technology (18) 530-535
Monte Carlo experiments were used to evaluate whether trace-level water-quality data that are routinely censored (not reported) contain valuable information for trend detection. Measurements are commonly censored if they fall below a level associated with some minimum acceptable level of reliability (detection limit). Trace-level organic data were simulated with best-...
Field and laboratory analyses of water from the Columbia aquifer in Eastern Maryland
L. J. Bachman
1984, Groundwater (22) 460-469
Field and laboratory analyses of pH, alkalinity, and specific conductance from water samples collected from the Columbia aquifer on the Delmarva Peninsula in eastern Maryland were compared to determine if laboratory analyses could be used for making regional water-quality interpretations.On the basis of 170 field...
THERMAL-INERTIA MAPPING IN VEGETATED TERRAIN FROM HEAT CAPACITY MAPPING MISSION SATELLITE DATA.
Ken Watson, Susanne Hummer-Miller
1984, Conference Paper
Thermal-inertia data, derived from the Heat Capacity Mapping Mission (HCMM) satellite, were analyzed in areas of varying amounts of vegetation cover. Thermal differences which appear to correlate with lithologic differences have been observed previously in areas of substantial vegetation cover. However, the energy exchange occurring within the canopy is much...
APPLICATION OF NON-PARAMETRIC STATISTICS TO EVALUATE THE COMPARABILITY OF ANALYTICAL DATA FROM TWO U. S. GEOLOGICAL SURVEY WATER-QUALITY LABORATORIES.
Dale B. Peart, Linda C. Friedman
1984, Conference Paper, National Meeting - American Chemical Society, Division of Environmental Chemistry
The U. S. Geological Survey operates two water-quality laboratories. The quality of data produced by each laboratory is judged primarily from an evaluation of the data obtained from the analysis of reference samples. Quality-assurance reports that contain an analysis of the results obtained from chemical analysis of these reference materials...
Offset of Tertiary arcs on the Alaska Peninsula: A section in Geological Survey research, fiscal year 1981
U.S. Geological Survey
1984, Professional Paper 1375
Geologic mapping and potassium-argon dating by R. L. Detterman, F. H. Wilson, J. E. Case, and Nora Shew in the Ugashik and western part of the Karluk quadrangles have shown that the Eocene and Oligocene volcanic arc continues into these quadrangles from the south in the Chignik and Sutwik Island...
