Simulation and mapping of soil-water conditions in the Great Plains
R. B. Zelt, J. T. Dugan
1993, Water Resources Bulletin (29) 939-948
Soil-water conditions provide valuable insight into the hydrologic system in an area. A soil-water balance quantitatively summarizes soil-water conditions and is based on climatic, soil, and vegetation characteristics that vary spatially and temporally. Soil-water balances in the Great Plains of the central United States were simulated for 1951-1980. Results of...
The use of a vegetation index for assessment of the urban heat island effect
K. P. Gallo, A. L. McNab, Thomas R. Karl, Jesslyn F. Brown, J. J. Hood, J.D. Tarpley
1993, International Journal of Remote Sensing (14) 2223-2230
A vegetation index and radiative surface temperature were derived from NOAA-11 Advanced Very High Resolution Radiometer (AVHRR) data for the Seattle, WA region from 28 June through 4 July 1991. The vegetation index and surface temperature values were computed for locations of weather observation stations within the region and compared...
A fortran program for Monte Carlo simulation of oil-field discovery sequences
Geoffrey C. Bohling, J.C. Davis
1993, Computers & Geosciences (19) 1529-1543
We have developed a program for performing Monte Carlo simulation of oil-field discovery histories. A synthetic parent population of fields is generated as a finite sample from a distribution of specified form. The discovery sequence then is simulated by sampling without replacement from this parent population in accordance with a...
Quality of ground water in Jackson County, Mississippi, March - June 1993
L. J. Slack, W. T. Oakley, L. M. Cooper
1993, Open-File Report 93-479
No abstract available....
Economics of utilization of high sulfur coal resources - an integrated market approach
S.B. Bhagwat
1993, Mining Engineering (45) 1406-1408
Before the Clean Air Act Amendments of 1990, coal policies - especially coal research policies - were geared to find a solution to the sulfur emission problem. However, technologies to reduce sulfur emissions cannot be tailored for a single coal. A technology that will clean Illinois coal to compliance levels...
Geochemical and analytical implications of extensive sulfur retention in ash from Indonesian peats
Jean S. Kane, Sandra G. Neuzil
1993, Special Paper of the Geological Society of America (286) 97-106
Sulfur is an analyte of considerable importance to the complete major element analysis of ash from low-sulfur, low-ash Indonesian peats. Most analytical schemes for major element peat- and coal-ash analyses, including the inductively coupled plasma atomic emission spectrometry method used in this work, do not permit measurement of sulfur...
Epiguruk: A late Quaternary environmental record from northwestern Alaska
T. D. Hamilton, G.M. Ashley
1993, Geological Society of America Bulletin (105) 583-602
Epiguruk, a prominent bluff along the Kobuk River in northwestern Alaska, exposes a rich depositional record of Quaternary eolian and fluvial sand, with associated loess, paleosols, and periglacial features. Three major complexes of alluvial and eolian deposits are separated by two conspicuous organic-rich paleosols which formed during cool-moist interstadial intervals....
Application of borehole geophysics in defining the wellhead protection area for a fractured crystalline bedrock aquifer
J.H. Vernon, F.L. Paillet, W.H. Pedler, W.J. Griswold
1993, Log Analyst (34) 41-57
Wellbore geophysical techniques were used to characterize fractures and flow in a bedrock aquifer at a site near Blackwater Brook in Dover, New Hampshire. The primary focus ofthis study was the development of a model to assist in evaluating the area surrounding a planned water supply well where contaminants introduced...
The susceptibility of rock slopes to earthquake-induced failure
D. K. Keefer
1993, Bulletin of the Association of Engineering Geologists (30) 353-361
Faulure of rock slopes is a major cause of damage and casualties during moderate and strong earthquakes. This article presents a method for assessing the seismic stability of rock slopes, which can be applied on a regional scale, using data from existing maps, reports, aerial photographs, and reconnaissance-level field observations....
Regional geology of the Woodford Shale, Anadarko Basin, Oklahoma; an overview of relevance to horizontal drilling
T.C. Hester, J. W. Schmoker
1993, Report, Petroleum-reservoir geology in the southern Midcontinent
No abstract available ...
AVHRR data set for the conterminous United States
Jeffery C. Eidenshink, John A. Hutchinson
1993, Research and Exploration (9) 86-97
No abstract available....
Stratigraphy and oil and gas resources in uppermost Cretaceous and Paleocene rocks, Wind River Reservation, Wyoming
W. R. Keefer, R. C. Johnson
1993, Conference Paper, Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming
The Cody Shale and the Mesaverde, Meeteetse, and Lance Formations of Late Cretaceous age and the Fort Union Formation of Paleocene age within the Wind River Reservation contain strata that were deposited during the final major regression of the Cretaceous epicontinental sea eastward across central Wyoming and the ensuing...
Estimation of recharge by the U.S. Geological Survey
G.E. Groschen
1993, Conference Paper, Proceedings: Texas sections joint spring meeting and Texas hydrology roundup
No abstract available ...
Current status and recent dynamics of the Black Brant Branta bernicla breeding population
James S. Sedinger, Calvin J. Lensink, David H. Ward, Michael W. Anthony, Michael L. Wege, G. Vernon Byrd
1993, Wildfowl (44) 39-48
We summarize current knowledge about the distribution of Pacific Black Brant and recent dynamics of colonies, particularly on the Yukon-Kuskokwim (Y-K) Delta, Alaska. About 20,000 nests are required to produce the number of young in the autumn flight using estimates of clutch size, hatching success and gosling survival based on...
Central Nebraska river basins Nebraska
Thomas L. Huntzinger, Michael J. Ellis
1993, Water Resources Bulletin (29) 533-574
The Central Nebraska Basins (NAWQA) study unit includes the Platte River and two major tributaries, the Loup and Elkhorn Rivers. Platte River flows are variable of diversions, but the Loup and Elkhorn Rivers originate in an area of dune sand covered by grassland that generates consistent base flows. Ground water...
Trends of sandstone po rosity in the Anadarko Basin- a preliminary evaluation
T.C. Hester
1993, Conference Paper, Petroleum-reservoir geology in the southern Midcontinent, 1991 symposium
No abstract available....
A guide to continent-ocean transect E-1: Adirondacks to Georges Bank
James B. Thompson Jr., Wallace A. Bothner, Peter Robinson, Yngvar W. Isachsen, Kim D. Klitgord
James B. Thompson Jr., Wallace A. Bothner, Peter Robinson, Kim D. Klitgord, editor(s)
1993, GSA's DNAG Continent-Ocean Transect Series 17
The geologic strip-map for Transect E-l cuts a swath from the Thousand Islands region on the New York-Ontario border to the Atlantic Ocean floor off Georges Bank (see Fig. 1). It includes portions of New York, Ontario and of all of the New England states. The western part, mainly in...
Recent experiences with PROSPECTOR II
R.B. McCammon
1993, Book chapter, Computers in geology: 25 years of progress
No abstract available ...
Active source, high-resolution (NeHT) tomography; velocity and Q
J.R. Evans, J.J. Zucca
1993, Book chapter
No abstract available ...
Effects of grazing on nesting by upland sandpipers in southcentral North Dakota
Bonnie S. Bowen, Arnold D. Kruse
1993, Journal of Wildlife Management (57) 291-301
Grazing by livestock is often used to reduce litter, improve plant vigor, and alter plant species composition, but additional information is needed on the effects of these management practices on upland-nesting birds. Thus, we conducted an experimental study of the effect of grazing on nest density and nest success of...
Baykal rift structure
L.P. Zonenshain, A.A. Gol’mshtok, D. Hutchinson
1993, Geotectonics (26) 396-407
No abstract available....
Toxicity and bioaccumulation of waterborne and dietary selenium in juvenile bluegill (Lepomis macrochirus)
Laverne Cleveland, Edward E. Little, Denny R. Buckler, Raymond H. Wiedmeyer
1993, Aquatic Toxicology (27) 265-279
Juvenile bluegill (Lepomis macrochirus) were exposed to waterborne selenium as a 6:1 mixture of selenate to selenite (as Se) for 60 d and to dietary seleno-l-methionine for 90 d. Measured concentrations of total selenium in the waterborne exposure ranged from 0.16 to 2.8 mg/l, and concentrations of seleno-l-methionine...
Three-dimensional velocity structure, seismicity, and fault structure in the Parkfield region, central California
D. Eberhart-Phillips, A.J. Michael
1993, Journal of Geophysical Research (98) 15737-15758
This study examines the three-dimensional velocity structure in a 60- by 80-km region containing the Parkfield segment of the San Andreas fault. We use local earthquake and shot P arrival times in an iterative simultaneous inversion for velocity and hypocentral parameters. Using the three-dimensional model, we relocated...
Effects of local-scale hydrogeologic features on particle-tracking analysis of ground-water flow at Patchogue, Long Island, N.Y
P.E. Misut, S. M. Feldman
1993, Book chapter, Hydrogeologic investigation, evaluation, and ground water modeling
No abstract available...
Feasibility of radio telemetry to document fish movement and habitat use in Lower Columbia River impoundments
P.J. Anders, L.B. Beckman
1993, Report, Status and habitat requirements of the white sturgeon populations in the Columbia River downstream from McNary Dam, Volume II
No abstract available...
