Maps showing sea-floor topography, depth to bedrock, and sediment thickness, Penobscot Bay, Maine
Harley J. Knebel, Kathryn M. Scanlon
1985, Miscellaneous Field Studies Map 1751
This report presents results of a high-resolution seismic-reflection survey conducted by the U.S. Geological Survey to determine the subbottom characteristics of Penobscot Bay, Maine. Penobscot Bay is one of the major embayments along the U.S. Atlantic coast (fig. 1), extending more than 50 km from the Gulf of Maine to...
Determination of diffusivities in the Rustler Formation from exploratory-shaft construction at the Waste Isolation Pilot Plant in southeastern New Mexico
Ken Stevens, Walt Beyeler
1985, Water-Resources Investigations Report 85-4020
The construction of an exploratory shaft 12 feet in diameter into the Salado Formation (repository horizon for transuranic waste material) at the Waste Isolation Pilot Plant site in southeastern New Mexico affected water-levels in water-bearing zones above the repository horizon. By reading the construction history of the exploratory shaft, an...
Evaluation of the effects of coal-mine reclamation on water quality in Big Four Hollow near Lake Hope, southeastern Ohio
V.E. Nichols
1985, Water-Resources Investigations Report 85-4197
A subsurface clay dike and mine-entrance hydraulic seals were constructed from July 1979 through May 1980 by the Ohio Department if Natural Resources, Division of Reclamation to reduce acidic mine drainage from abandoned drift-mine complex 88 into Big Four Hollow Creek. Big Four Hollow Creek flows into Sandy Run--the major...
Map showing Tertiary stratigraphy and structure of the Northern San Joaquin Valley, California
J. A. Bartow
1985, Miscellaneous Field Studies Map 1761
This report is a result of recent studies of the Cenozoic stratigraphy and structure of the San Joaquin Valley that were directed at Cenozoic depositional and tectonic history. Most previous work on the Cenozoic has focused on the Quaternary surficial deposits and on the outcrops of older rocks at the...
Computer program for the computation of total sediment discharge by the modified Einstein procedure
H.H. Stevens
1985, Water-Resources Investigations Report 85-4047
Two versions of a computer program to compute total sediment discharge by the modified Einstein procedure are presented. The FORTRAN 77 language version is for use on the PRIME computer, and the BASIC language version is for use on most microcomputers. The program contains built-in limitations and input-output options that...
Effect of adherent bacteria and bacterial extracellular polymers upon assimilation by Macoma balthica of sediment-bound Cd, Zn and Ag
Ronald W. Harvey, Samuel N. Luoma
1985, Marine Ecology Progress Series (22) 281-289
Effects of adherent bacteria and bacterial extracellular polymer (exopolymer) upon uptake of particle-bound Cd, Zn and Ag by the deposit-feeding clam Macoma balthica were studied in the laboratory. Amorphous iron oxyhydroxide and unaltered and alkaline-extracted sediments were used as model particulates in separate, controlled deposit-feeding experiments. In general, amounts of...
Remote sensing of tidal chlorophyll-a variations in estuaries
Glenn P. Catts, Siamak Khorram, James E. Cloern, Allen W. Knight, Stephen D. Degloria
1985, International Journal of Remote Sensing (6) 1685-1706
Simultaneous acquisition of surface chlorophyll-a concentrations for 39 samples from boats and Daedalus 1260 Multispectral Scanner data from a U-2 aircraft was conducted in the northern reaches of San Francisco Bay on 28 August 1980. These data were used to develop regression models for predicting surface chlorophyll-a concentrations over the...
Links between magma-tectonic rate balances, plutonism, and volcanism
H. R. Shaw
1985, Journal of Geophysical Research Solid Earth (90) 11,275-11,288
With Smith's (1979) model of ash flow magmatism as the point of departure, quantitative regimes of crustal magmatic evolution are outlined. The average extrusive regime of ash flow magmatism operates at a rate of about 0.001 km3/yr; progressively larger episodes of increasing repose times characterize the evolution of caldera-forming eruptions....
Automated derivation of hydrologic basin characteristics from digital elevation model data
Susan K. Jenson
1985, Conference Paper, Auto-Carto VII: Proceedings of the digital representations of spatial knowledge
Digital elevation model (DEM) data in a raster format can be used to automatically derive the drainage characteristics of an area. A procedure has been designed that is capable of operating on matrices of elevation data having no algorithmically imposed size limit, while performing within the resolution and accuracy tolerances...
Population biology of bluegills, Lepomis macrochirus, in lotic habitats on the irrigated San Joaquin Valley floor
M. K. Saiki, C. J. Schmitt
1985, California Fish and Game (71) 225-244
Rapid expansion of irrigated agriculture in the western United States has prompted concerns for aquatic resources. Although the impacts of irrigation activities on quality and quantity of river water are well documented (e.g., high turbidity from soil erosion, eutrophication from nutrient runoff, pesticide contamination, reduced dis- charge), their effects on...
An investigation of hydraulic conductivity estimation in a ground-water flow study of Northern Long Valley, New Jersey
Mary C. Hill
1985, Thesis
The purpose of this study was to develop a methodology to be used to investigate the aquifer characteristics and water supply potential of an aquifer system. In particular, the geohydrology of northern Long Valley, New Jersey, was investigated. Geohydrologic data were collected and analyzed to characterize the site. Analysis was...
On the interpretation of satellite-derived gravity and magnetic data for studies of crustal geology and metallogenesis
David A. Hastings
1985, Conference Paper, Geopotential Research Mission (GRM): Proceedings of a conference
Satellite-derived global gravity and magnetic maps have been shown to be useful in large-scale studies of the Earth's crust, despite the relative infancy of such studies. Numerous authors have made spatial associations of gravity or magnetic anomalies with geological provinces. Gravimetric interpretations are often made in terms of isostasy, regional...
Periodic autoregressive-moving average (PARMA) modeling with applications to water resources
A. V. Vecchia
1985, Journal of the American Water Resources Association (21) 721-730
Results involving correlation properties and parameter estimation for autoregressive-moving average models with periodic parameters are presented. A multivariate representation of the PARMA model is used to derive parameter space restrictions and difference equations for the periodic autocorrelations. Close approximation to the likelihood function for Gaussian PARMA processes results in efficient...
Detectability of step trends in the rate of atmospheric deposition of sulfate
R.M. Hirsch, E.J. Gilroy
1985, Journal of the American Water Resources Association (21) 773-784
A method is presented to assist policy makers in determining the combination of number of sampling stations and number of years of sampling necessary to state with a given probability that a step reduction in atmospheric deposition rates of a given magnitude has occurred at a pre-specified time. This pre-specified...
Mountain pine beetle damage and contagion modeling: some concepts and approaches
David B. Hamilton, James E. Roelle, William B. White
1985, Report
No abstract available....
Monitoring the earth: too many players?
Gene A. Thorley
1985, Pecora 10 Symposium 457-462
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 (the Global Environment Monitoring System of the United Nations Environment Program), and an ambitious experiment to validate algorithms to derive...
Landsat-faciliated vegetation classification of the Kenai National Wildlife Refuge and adjacent areas, Alaska
Stephen S. Talbot, M.B. Shasby, T.N. Bailey
1985, Conference Paper, Pecora 10 Symposium
A Landsat-based vegetation map was prepared for Kenai National Wildlife Refuge and adjacent lands, 2 million and 2.5 million acres respectively. The refuge lies within the middle boreal sub zone of south central Alaska. Seven major classes and sixteen subclasses were recognized: forest (closed needleleaf, needleleaf woodland, mixed);...
Dynamics of a black-capped chickadee population, 1958-1983
G. Loery, James D. Nichols
1985, Ecology (66) 1195-1203
The dynamics of a wintering population of Black—capped Chickadees (Parus atricapillus) were studied from 1958—1983 using capture—recapture methods. The Jolly—Seber model was used to obtain annual estimates of population size, survival rate, and recruitment. The average estimated population size over this period was °160 birds. The average estimated number of...
Biogeochemistry of aquatic humic substances in Thoreau's Bog, Concord, Massachusetts
Diane M. McKnight, E. Michael Thurman, Robert L. Wershaw, Herold Hemond
1985, Ecology (66)-1339
Thoreau's Bog is an ombrotrophic floating—mat Sphagnum bog developed in a glacial kettlehole and surrounded by a red maple swamp. Concentrations of dissolved organic carbon in the porewater of the bog average 36 mg/L and are greatest near the surface, especially during late summer. This distribution suggest that the upper...
Application of a ground-water flow digital model in evaluating alternate dewatering systems in the Río Grande de Arecibo alluvial valley, Puerto Rico
Vicente Quinones-Aponte, Heriberto Torres-Sierra
1985, Conference Paper, American Water Resources Association, Technical Publication Series TPS-85-1
Rate and depth of pedogenic-carbonate accumulation in soils: Formation and testing of a compartment model.
Leslie D. McFadden, John Tinsley
1985, GSA Special Papers (203) 23-41
The rate and depth of pedogenic carbonate accumulation in soils formed in Quaternary alluvium may be viewed as a theoretical problem that involves the mutual interaction of several independent and dependent soil-forming variables. We propose a model for carbonate accumulation in which the soil column is defined by a vertical...
Effects of fluoride on screech owl reproduction: Teratological evaluation, growth, and blood chemistry in hatchlings
D. J. Hoffman, O. H. Pattee, Stanley N. Wiemeyer
1985, Toxicology Letters (26) 19-24
The effects on reproduction in screech owls (Otus asio) of chronic dietary sodium fluoride administration at 0, 40, and 200 ppm were examined. Fluoride at 40 ppm resulted in a significantly smaller egg volume, while 200 ppm also resulted in lower egg weights and lengths. Day-one hatchlings in the 200...
Inversion of seismic refraction data in planar dipping structure
Bernd Milkereit, Walter D. Mooney, W.M. Kohler
1985, Geophysical Journal International (82) 81-103
A new method is presented for the direct inversion of seismic refraction data in dipping planar structure. Three recording geometries, each consisting of two common-shot profiles, are considered: reversed, split, and roll-along profiles. Inversion is achieved via slant stacking the common-shot wavefield to obtain a delay time—slowness (tau—p) wavefield....
The occurrence of extractable elements in soils from the northern Great Plains
J.M. McNeal, R. C. Severson, Larry P. Gough
1985, Soil Science Society of America Journal (49) 873-881
The modes of occurrence of extractable elements from 21 A and C horizon samples of uncultivated soils were examined using R-mode factor analysis. The extractants (DTPA, EDTA, HCl, hydroquinone, magnesium nitrate, and ammonium oxalate) cover a wide range of chemical attack. Four major elements (Ca, K, Mg, and Na) and...
Use of Peltier coolers as soil heat flux transducers
H. L. Weaver, G. S. Campbell
1985, Soil Science Society of America Journal (49) 1065-1067
Peltier coolers were modified and calibrated to serve as soil heat flux transducers. The modification was to fill their interiors with epoxy. The average calibration constant on 21 units was 13.6 ± 0.8 kW m−2 V−1 at 20°C. This sensitivity is about eight times that of the two thermopile transducers with which...
