Crustal refraction profile of the Long Valley caldera, California, from the January 1983 Mammoth Lakes earthquake swarm
James H. Luetgert, Walter D. Mooney
1985, Bulletin of the Seismological Society of America (75) 211-221
Seismic-refraction profiles recorded north of Mammoth Lakes, California, using earthquake sources from the January 1983 swarm complement earlier explosion refraction profiles and provide velocity information from deeper in the crust in the area of the Long Valley caldera. Eight earthquakes from a depth range of 4.9 to 8.0 km confirm...
The effect of glaciers on streamflow variations
Andrew G. Fountain, Wendell V. Tangborn
1985, Water Resources Research (21) 579-586
The effect of temperate glaciers on runoff variations is examined for the North Cascade Mountains of Washington State. The principal influences of glaciers on streamflow are often unexpected contributions to streamflow volume, a delay of the maximum seasonal flow, and a decrease in annual and monthly variation of runoff. The...
Determining relative error bounds for the CVBEM
T. V. Hromadka II
1985, Engineering Analysis (2) 75-80
The Complex Variable Boundary Element Methods provides a measure of relative error which can be utilized to subsequently reduce the error or provide information for further modeling analysis. By maximizing the relative error norm on each boundary element, a bound on the total relative error for each boundary element can...
Geochemistry: Uses for synthetic fluid inclusions in quartz crystals
E. Roedder
1985, Nature (315) 544-545
[No abstract available]...
Ground-water flow in the Coastal Plain aquifers of South Carolina
W. R. Aucott, G. K. Speiran
1985, Groundwater (23) 736-745
The characteristics of the Coastal Plain aquifers of South Carolina are being studied as a part of the Regional Aquifer System Analysis program of the United States Geological Survey. Potentiometric maps were constructed for the Middendorf aquifer of Cretaceous age and for the Floridan...
Sedimentary framework of Penobscot Bay, Maine
Harley J. Knebel, Kathryn M. Scanlon
1985, Marine Geology (65) 305-324
Analyses of seismic-reflection profiles, along with previously collected sediment samples and geologic information from surrounding coastal areas, outline the characteristics, distribution, and history of the strata that accumulated within Penobscot Bay, Maine, during the complex period of glaciation, crustal movement, and sea-level change since late Wisconsinan time. Sediments that overlie...
Role of small oil and gas fields in the United States
Richard F. Meyer, Mary L. Fleming
1985, American Association of Petroleum Geologists Bulletin (69) 1950-1962
With the maturation of oil and gas production operations in a province or country, fields found by new-field wildcats diminish in size. The actual economic size cutoff is a function of such factors as depth, water depth offshore, and accessibility to transportation infrastructure. Because of the constraint of resource availability,...
Maximum likelihood estimation for periodic autoregressive moving average models
A. V. Vecchia
1985, Technometrics (27) 375-384
A useful class of models for seasonal time series that cannot be filtered or standardized to achieve second-order stationarity is that of periodic autoregressive moving average (PARMA) models, which are extensions of ARMA models that allow periodic (seasonal) parameters. An approximation to the exact likelihood for Gaussian PARMA processes is...
Fluid inclusion geobarometry from ejected Mt. Somma-Vesuvius nodules.
H. E. Belkin, B. de Vivo, E. Roedder, M. Cortini
1985, American Mineralogist (70) 288-303
The results of a microthermometric study of fluid inclusions from seven cumulate and three 'skarn' nodules collected from the pyroclastics of three non-Plinian eruptive episodes are presented. -J.A.Z....
Deciphering hydrological systems by means of geochemical processes
B.B. Hanshaw, W. Back
1985, Hydrological Sciences Journal (30) 257-271
Interpretation of geochemical reactions and isotopic composition of groundwater provides a method to determine hydrological parameters such as porosity, hydraulic conductivity, and groundwater flow rates. This geochemical method is largely independent of the more conventional approach of determining these parameters by an evaluation of physical properties of aquifer systems. -from...
EFFECTS OF LITHOLOGY ON TELEVIEWER-LOG QUALITY AND FRACTURE INTERPRETATION.
Frederick L. Paillet, W.S. Keys, A.E. Hess
1985, Conference Paper, Transactions of the SPWLA Annual Logging Symposium (Society of Professional Well Log Analysts)
Representative televiewer logs illustrating natural fractures in such common rock types as granite, gabbro, basalt, schist, sandstone, limestone and shale are presented in addition to photographs of the same fractures in core samples. These examples demonstrate the many difficulties in recognizing fractures on televiewer logs compared to fractures in logs...
Mechanistic roles of soil humus and minerals in the sorption of nonionic organic compounds from aqueous and organic solutions
C. T. Chiou, T.D. Shoup, P.E. Porter
1985, Organic Geochemistry (8) 9-14
Mechanistic roles of soil humus and soil minerals and their contributions to soil sorption of nonionic organic compounds from aqueous and organic solutions are illustrated. Parathion and lindane are used as model solutes on two soils that differ greatly in their humic and mineral contents. In aqueous systems, observed sorptive...
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...
Apertural features and surface texture of upper Paleogene biserial planktonic foraminifers: links between Chiloguembelina and Streptochilus.
R.Z. Poore, L.B. Gosnell
1985, Journal of Foraminiferal Research (15) 1-5
Several upper Paleogene species of Chiloguembelina have an internal apertural plate that is very similar to the internal plate typical of the Neogene genus Streptochilus. The type species of Chiloguembelina, C. midwayensis midwayensis (Cushman), however, lacks any internal apertural structure or modifications. Therefore, the following 'Chiloguembelina', which have an internal...
Latest Mississippian (Namurian A) nonmarine ostracodes from West Virginia and Virginia
I. G. Sohn
1985, Journal of Paleontology (59) 446-460
Nonmarine ostracodes occur as partly exfoliated carapaces and internal molds at the base of the Bramwell Member of the Bluestone Formation, which represents the uppermost Mississippian (Namurian A), stratigraphic subdivision in West Virginia and Virginia. These specimens are important in that they permit the determination of a variety of adductor-muscle-attachment...
Strontium and oxygen isotopic variations in Mesozoic and Tertiary plutons of central Idaho
R.J. Fleck, R.E. Criss
1985, Contributions to Mineralogy and Petrology (90) 291-308
Regional variations in initial 87Sr/86Sr ratios (ri) of Mesozoic plutons in central Idaho locate the edge of Precambrian continental crust at the boundary between the late Paleozoic-Mesozoic accreted terranes and Precambrian sialic crust in western Idaho. The ri values increase abruptly but continuously from less than 0.704 in the accreted...
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...
Water analysis
John R. Garbarino, T.R. Steinheimer, Howard E. Taylor
1985, Analytical Chemistry (57) 46-88
No abstract available....
Chesterian davidsoniacean and orthotetacean brachiopods, Ozark region of Arkansas and Oklahoma
T. W. Henry, M. Gordon Jr.
1985, Journal of Paleontology (59) 32-59
Three species of orthotetaceans and one species of davidsoniacean are among the strophomenid brachiopods from Chesterian (Upper Mississippian) rocks of northern Arkansas and northeastern Oklahoma. Type material from the Fayetteville Shale, Orthotetes subglobosus and O. subglobosus var. protensus, is figured for the first time. We regard these species, and O....
INTERRELATIONSHIPS BETWEEN IN-SITU GAS HYDRATES AND HEAVY OIL OCCURRENCES ON THE NORTH SLOPE OF ALASKA.
T. S. Collett
1985, Conference Paper, Society of Petroleum Engineers of AIME, (Paper) SPE
In 1973, during the drilling of the West Sak #1 well on the North Slope of Alaska, oil was first recovered from a shallow Cretaceous sand interval which was later informally named the West Sak sands by ARCO Alaska. Stratigraphically above the West Sak sands there are two additional oil...
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...
Wave energy saturation on a natural beach of variable slope
A. H. Sallenger Jr., R.A. Holman
1985, Journal of Geophysical Research - Oceans (90) 11939-11944
Time series of flow were measured across the inner surf zone during a storm. These data were used to quantify the dependence of wave height (transformed from measured flow) and velocity on local slope and depth. Similar to previous studies, as incident waves broke and propagated into the surf zone,...
The effect of particle size and porosity on spectral contrast in the mid-infrared
J.W. Salisbury, J.W. Eastes
1985, Icarus (64) 586-588
Contrary to previous work, we find that the decreasing intensity of fundamental molecular vibration bands with decreasing particle size is due primarily to increasing porosity of the finer particle size ranges, rather than to particle size per se. This implies that...
NEW STUDIES OF URBAN FLOOD FREQUENCY IN THE SOUTHEASTERN UNITED STATES.
Vernon B. Sauer
Huffsey Ralph R.De Vore R.William, editor(s)
1985, Conference Paper, University of Kentucky, Office of Engineering Services, (Bulletin) UKY BU
Five reports dealing with flood magnitude and frequency in urban areas in the Southeastern United States have been published during the past 2 years by the U. S. Geological Survey. These reports are based on data collected in Tampa and Tallahassee, Florida, Atlanta, Georgia, and several cities in Alabama and...
Unit hydrograph approximations assuming linear flow through topologically random channel networks
Brent M. Troutman, Michael R. Karlinger
1985, Water Resources Research (21) 743-754
The instantaneous unit Hydrograph (IUH) of a drainage basin is derived in terms of fundamental basin characteristics (Z, α, β), where α parameterizes the link (channel segment) length distribution, and β is a vector of hydraulic parameters, Z is one of three basin topological properties, N, (N, D), or (N, M), where N is magnitude (number of...
