Wavelike movement of bedload sediment, East Fork River, Wyoming
R.H. Meade
1985, Environmental Geology and Water Sciences (7) 215-225
Bedload is moved down the East Fork River in distinct wavelike pulses that have the form of composite dune fields The moving material consists mostly of coarse sand and fine gravel The wavelengths of the pulses are about 500-600 m, a distance that is predetermined by the pattern of stoage...
Geochemistry and petrogenesis of lamproites, late cretaceous age, Woodson County, Kansas, U.S.A.
R.L. Cullers, S. Ramakrishnan, P. Berendsen, T. Griffin
1985, Geochimica et Cosmochimica Acta (49) 1383-1402
Lamproite sills and their associated sedimentary and contact metamorphic rocks from Woodson County, Kansas have been analyzed for major elements, selected trace elements, and strontium isotopic composition. These lamproites, like lamproites elsewhere, are alkalic (molecular K2O + Na2OAl2O3= 1.6–2.6">K2O + Na2OAl2O3= 1.6–2.6), are ultrapotassic <span...
CONCEPTUAL FRAMEWORK FOR REGRESSION MODELING OF GROUND-WATER FLOW.
Richard L. Cooley
1985, Conference Paper
The author examines the uses of ground-water flow models and which classes of use require treatment of stochastic components. He then compares traditional and stochastic procedures for modeling actual (as distinguished from hypothetical) systems. Finally, he examines the conceptual basis and characteristics of the regression approach to modeling ground-water flow....
MARINE MINERAL RESOURCES - AN UPDATE AND INTRODUCTION.
Michael J. Cruickshank, William Siapno
1985, Marine Technology Society Journal (19) 3-5
This article briefly traces the status of marine minerals development, and it describes papers presented in this special issue on the subject. Subjects covered include types of deposits, marine mining in Canada, Manganese nodules, metalliferous sulfides as seabed minerals, metallurgical processes for reducing sulfide minerals, U. S. phosphate industry, construction...
MONITORING THE EARTH - TOO MANY PLAYERS?
Gene A. Thorley
1985, Conference Paper, Technical Papers of the American Society of Photogrammetry, Annual Meeting
Remote sensing from satellites provides a unique tool to measure the parameters of the Earth on a worldwide scale. A number of organizations are currently engaged in, or proposing to embark on, worldwide measurement/monitoring programs. Program objectives vary in type and complexity, including a form of technical library and an...
Time scales and mechanisms of estuarine variability, a synthesis from studies of San Francisco Bay
J. E. Cloern, F.H. Nichols
1985, Hydrobiologia (129) 229-237
This review of the preceding papers suggests that temporal variability in San Francisco Bay can be characterized by four time scales (hours, days-weeks, months, years) and associated with at least four mechanisms (variations in freshwater inflow, tides, wind, and exchange with coastal waters). The best understood component of temporal variability...
LORAN-C LATITUDE-LONGITUDE CONVERSION AT SEA: PROGRAMMING CONSIDERATIONS.
James R. McCullough, Barry J. Irwin, Robert M. Bowles
1985, Conference Paper
Comparisons are made of the precision of arc-length routines as computer precision is reduced. Overland propagation delays are discussed and illustrated with observations from offshore New England. Present practice of LORAN-C error budget modeling is then reviewed with the suggestion that additional terms be considered in future modeling. Finally, some...
Analysis of low levels of rare earths by radiochemical neutron activation analysis
G.A. Wandless, J. W. Morgan
1985, Journal of Radioanalytical and Nuclear Chemistry Articles (92) 273-282
A procedure for the radiochemical neutron-activation analysis for the rare earth elements (REE) involves the separation of the REE as a group by rapid ion-exchange methods and determination of yields by reactivation or by energy dispersive X-ray fluorescence (EDXRF) spectrometry. The U. S. Geological Survey (USGS) standard rocks, BCR-1 and...
Reply. Geologic time as a parameter in organic metamorphism and vitrinite reflectance as an absolute paleogeothermometer.
L.C. Price
1985, Journal of Petroleum Geology (8) 233-240
The present author defends his conclusions. Two errors in his earlier paper (M.A. 84M/1107) are corrected. (Preceding abstract) -P.Br....
EEZ-SCAN: A U. S. GEOLOGICAL SURVEY SEA-FLOOR IMAGING PROGRAM USING THE GLORIA SIDE-SCAN SONAR SYSTEM.
Gary W. Hill
1985, Conference Paper, Technical Papers of the American Congress of Surveying and Mapping
The U. S. Geological Survey initiated Program EEZ-SCAN in April 1984 in cooperation with the Institute of Oceanographic Sciences (IOS) of the United Kingdom to map the U. S. Exclusive Economic Zone (EEZ) at reconnaissance scale as a first effort to develop a geologic understanding of the new national territory....
EFFECT OF TEMPERATURE ON THE SORPTION OF CHELATED RADIONUCLIDES.
Ann S. Maest, David A. Crerar, Edward C. Dillon, Stephen M. Trehu, Tamara N. Rountree
Jantzen Carol M.Stone John A.Ewing Rodney C., editor(s)
1985, Conference Paper, Materials Research Society Symposia Proceedings
Temperature effects in the near-field radioactive waste disposal environment can result in changes in the adsorptive capacity and character of the substrate and the chemistry of the reacting fluids. This work examines the effect of temperature on 1) the kinetics of radionuclide sorption onto clays from 25 degree -75 degree...
Validation of an automated fluorescein method for determining bromide in water
M. J. Fishman, L.J. Schroder, L.C. Friedman
1985, Water Research (19) 497-501
Surface, atmospheric precipitation and deionized water samples were spiked with ??g l-1 concentrations of bromide, and the solutions stored in polyethylene and polytetrafluoroethylene bottles. Bromide was determined periodically for 30 days. Automated fluorescein and ion chromatography methods were used to determine bromide in these prepared samples. Analysis of the data...
TRANSIENT SOUNDING INVESTIGATION OF NEWBERRY VOLCANO, OREGON.
David V. Fitterman, Deborah K. Neev
1985, Conference Paper, Transactions - Geothermal Resources Council
Transient electromagnetic soundings were used to map the geoelectrical structure of Newberry Volcano in central Oregon. An extensive conductor was found to underlie the volcano and to have resistivities from 20 OMEGA m to 72 OMEGA m. The depth to the conductor ranges from 410 m to 870 m. Inside...
Zeolites in Eocene basaltic pillow lavas of the Siletz River Volcanics, Central Coast Range, Oregon
Terry E.C. Keith, Lloyd W. Staplese
1985, Clays and Clay Minerals (33) 135-144
Zeolites and associated minerals occur in a tholeiitic basaltic pillow lava sequence that makes up part of the Eocene Siletz River Volcanics in the central Coast Range, Oregon. Regional zoning of zeolite assemblages is not apparent; the zeolites formed in joints, fractures, and interstices, although most occur in central cavities...
QUALITY ASSURANCE PROGRAM FOR WET DEPOSITION SAMPLING AND CHEMICAL ANALYSES FOR THE NATIONAL TRENDS NETWORK.
LeRoy J. Schroder, Bernard A. Malo
Johnson Ted R.Penkala Stanley J., editor(s)
1985, Conference Paper
The purpose of the National Trends Network is to delineate the major inorganic constituents in the wet deposition in the United States. The approach chosen to monitor the Nation's wet deposition is to install approximately 150 automatic sampling devices with at least one collector in each state. Samples are collected...
Optimization of one-way wave equations
Myung W. Lee, S.Y. Suh
1985, Geophysics (50) 1634-1637
The theory of wave extrapolation is based on the square-root equation or one-way equation. The full wave equation represents waves which propagate in both directions. On the contrary, the square-root equation represents waves propagating in one direction only....
Heavy metals in white-tailed deer living near a zinc smelter in Pennsylvania
Louis Sileo, W. Nelson Beyer
1985, Journal of Wildlife Diseases (21) 289-296
White-tailed deer (Odocoileus virginianus (Zimmermann)) shot within 20 km of the zinc smelters in the Palmerton, Pennsylvania area contained extremely high renal concentrations of cadmium (372 ppm dry weight (dw)) and zinc (600 ppm dw). The deer with the highest renal zinc concentration was shot 4 km from the smelters and...
A comparison of several methods of solving nonlinear regression groundwater flow problems
Richard L. Cooley
1985, Water Resources Research (21) 1525-1538
Computational efficiency and computer memory requirements for four methods of minimizing functions were compared for four test nonlinear-regression steady state groundwater flow problems. The fastest methods were the Marquardt and quasi-linearization methods, which required almost identical computer times and numbers of iterations; the next fastest was the quasi-Newton method, and...
FINDINGS OF A SYMPOSIUM ON COAL QUALITY.
Stanley P. Schweinfurth, Susan Garbini
1985, Conference Paper
The U. S. Geological Survey (USGS) has been doing research on coal quality for almost a century. Most of the work of the USGS regarding coal went into efforts to assess the quantity of coal in the United States, not the quality. On April 9-11, 1985, the U. S. Geological...
Physiography and deposition on a distal deep-sea system: The Valencia Fan (Northwestern Mediterranean)
A. Maldonado, A. Palanques, B. Alonso, K.A. Kastens, C.H. Nelson, S. O'Connell, William B. F. Ryan
1985, Geo-Marine Letters (5) 157-164
The Valencia Fan developed as the distal fill of a deep-sea valley, detached from the continental slope and the main sedimentary source. A survey of side-scan sonar, Sea Beam and reflection seismics shows that the sediment is largely fed through the Valencia Valley. The upper fan comprises large channels with...
The transverse and oblique cylindrical equal-area projection of the ellipsoid.
J.P. Snyder
1985, Annals of the Association of American Geographers (75) 431-442
The formulas for the ellipsoidal projection are derived for both forward and inverse computations and consist of modifying the formulas obtained by using the authalic sphere so that the scale along the central line of the projection is constant. Fourier series are used to eliminate recurring numerical integration and other...
Terrestrial vs. marine depositional model—A new assessment of subsurface Lower Pennsylvanian rocks of southwestern Virginia
C. L. Rice
1985, Geology (13) 786-789
A reinterpretation of the origin of subsurface rocks in southwestern Virginia and southeastern Kentucky suggests that, contrary to commonly accepted ideas, the Mississippian-Pennsylvanian Systemic boundary is an unconformity and the Lower Pennsylvanian quartz arenite sequences were deposited in a fluvial environment. Because Pennsylvanian...
APPLICATIONS OF BOREHOLE-ACOUSTIC METHODS IN ROCK MECHANICS.
Frederick L. Paillet
1985, Conference Paper, Proceedings - Symposium on Rock Mechanics
Acoustic-logging methods using a considerable range of wavelengths and frequencies have proven very useful in the in situ characterization of deeply buried crystalline rocks. Seismic velocities are useful in investigating the moduli of unfractured rock, and in producing a continuous record of rock quality for comparison with discontinuous intervals of...
BORATE DEPOSITS IN THE UNITED STATES: DISSIMILAR IN FORM, SIMILAR IN GEOLOGIC SETTING.
George I. Smith
Barker James M.Lefond Stanley J., editor(s)
1985, Conference Paper
Borate deposits in the western United States have several geologic characteristics in common: All primary deposits are about 20 my or less in age, and they are observed or inferred to be stratigraphically associated with volcanic activity and thermal springs. Most of them lie at least partially in the lacustrine...
Land subsidence: Its impacts and costs in the U.S
T.L. Holzer
1985, Underground Space (9) 260
[No abstract available]...
