J. S. Duval
1997, Open-File Report 97-96
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Page 3598, results 89926 - 89950
Publication Extents
Not all publications have extents, not all extents are completely accurateJon E. Keeley, W.J. Bond
1997, Plant Ecology (133) 153-167
California chaparral and South African fynbos are fire-prone communities dominated by species exhibiting remarkable similarities in germination response. In both regions there are a substantial number of species with germination stimulated chemically by charred wood and smoke. This type of germination behaviour has arisen independently in distantly related families and...
J.W. Farrar, H.K. Long
1997, Open-File Report 97-20
L.C. Davis, S.R. Hannula, Beverly Bowers
1997, Open-File Report 97-124
V.J. Grauch, Robert P. Kucks
1997, Open-File Report 97-85
This report presents principal facts for gravity stations collected along profiles near the Osgood Mountains and Slumbering Hills, north- central Nevada. These include (1) data collected near the Osgood Mountains by U. S. Geological Survey (USGS) personnel in the years 1989, 1990, and 1993; and (2) data released to the...
Brian A. Bergamaschi, Kathryn L. Crepeau, Kathryn Kuivila
1997, Open-File Report 97-24
During the study of inputs of sediment-associated pesticides into the San Francisco Bay Estuary, suspended sediments were isolated from large-volume water samples collected over several years at various stations in Suisun Bay and also covering the principal inputs and outlet. The samples were analyzed for 21 pesticides and pesticide degradation...
L. M. Pope, J.E. Putnam
1997, Water-Resources Investigations Report 97-4045
A study of urban-related water-qulity effects in the Kansas River, Shunganunga Creek Basin, and Soldier Creek in Topeka, Kansas, was conducted from October 1993 through September 1995. The purpose of this report is to assess the effects of urbanization on instream concentrations of selected physical...
R. R. Wahl, D.A. Sawyer, S.A. Minor, M. D. Carr, J. C. Cole, W. C. Swadley, R. J. Laczniak, R.G. Warren, K. S. Green, C. M. Engle
1997, Open-File Report 97-140
Forty years of geologic investigations at the Nevada Test Site (NTS) have been digitized. These data include all geologic information that: (1) has been collected, and (2) can be represented on a map within the map borders at the map scale is included in the map digital coverages. The following...
J.J. Starn
1997, Water-Resources Investigations Report 97-4055
The fractured-bedrock aquifer underlying the former Fire Training Area at Loring Air Force Base, Maine, has been contaminated with petroleum products as a result of fire training activities. A numerical model of the ground-water-flow system near the Fire Training Area was developed to provide information for the design and operation...
Robert E. Faye, Gregory C. Mayer
1997, Professional Paper 1410-F
Ground-water-flow systems within the clastic sediments of the southeastern Coastal Plain have been described and quantified through the application of digital ground-water-flow models. Results indicate that the rates and distribution of flow are highly variable, and that regional flowpaths in two aquifers traverse several States. A hydrologic budget was developed...
Curtis A. Palmer, editor(s)
1997, Bulletin 2144
John R. Mullaney, Marc James Zimmerman
1997, Water-Resources Investigations Report 97-4076
Frederic H. Wilson
1997, Open-File Report 97-168
No abstract available....
Robert C. Milici
1997, Open-File Report 97-447-B
Richard L. Reynolds, Martin B. Goldhaber, Lawrence W. Snee
1997, Bulletin 2094-G
Igneous processes at Hicks dome, a structural upwarp at lat 37.5° N., long 88.4° W. in the southern part of the Illinois Basin, may have thermally affected regional basinal fluid flow and may have provided fluorine for the formation of the Illinois-Kentucky Fluorspar district. The timing of both igneous activity...
D. L. Runkle, D. L. Bergman, R.S. Fabian
1997, Open-File Report 97-50
This report is a compilation of hydrogeologic data collected for an areal ground-water investigation of the Blaine aquifer and associated units in southwestern Oklahoma and northwestern Texas. The study area includes parts of Greer, Harmon, and Jackson counties in Oklahoma and parts of Childress, Collingsworth, Hall, Hardeman, and Wilbarger counties...
William H. Langer, Gregory N. Green, Daniel H. Knepper, David A. Lindsey, David W. Moore, L. David Nealey, John C. Reed
1997, Open-File Report 97-477
No abstract available....
M.M. Hilmes, J. E. Vaill
1997, Water-Resources Investigations Report 97-4073
A bridge-scour study by the U.S. Geological Survey, in cooperation with the Nevada Department of Transportation, began in April 1996 to evaluate the Mesquite, Nevada, and Riverside, Nevada, bridges on the lower Virgin River using a sediment-transport model and historical geomorphic data. The BRIdge Stream Tube model for Alluvial River...
Gregory M. Clark
1997, Water-Resources Investigations Report 97-4020
A water-quality investigation of the upper Snake River Basin began in 1991 as part of the U.S. Geological Survey's National Water- Quality Assessment Program. As part of the investigation, intensive monitoring was conducted during water years 1993 through 1995 to assess surface-water quality in the basin. Sampling and analysis focused on...
Daniel J. Bright, David B. Nash, Peter Martin
1997, Water-Resources Investigations Report 97-4056
Ground-water quality in the Lompoc area, especially in the Lompoc plain, is only marginally acceptable for most uses. Demand for ground water has increased for municipal use since the late 1950's and has continued to be high for irrigation on the Lompoc plain, the principal agricultural area in the Santa...
Edward H. Koerkle, Linda C. Gustafson-Minnich, Michael D. Bilger
1997, Water-Resources Investigations Report 97-4048
A 5.82-square-mile drainage basin in the headwaters of the Little Conestoga Creek in Lancaster County, Pa., was investigated from October 1989 through September 1991 as part of a longer-term effort to determine the effects of nutrient management on surface-water quality. A previous investigation found no statistical evidence that implementation of...
Elisabeth Huber-Sannwald, M. M. Caldwell, David A. Pyke
1997, Canadian Journal of Botany (75) 2146-2157
A previous study showed that clonal morphology of the rhizomatous grass Elymus lanceolatus ssp. lanceolatus (Scibner & J.G. Smith Gould) was influenced more by neighbouring root systems than by the local distribution of nutrients. In this study we determine whether individual rhizomes or roots of E. lanceolatus perceive neighbouring root systems and how this is manifested in...
H. R. Covington, M.A. Berger, E.C. Jenkins
1997, Open-File Report 97-139
R.F. Yerkes
1997, Open-File Report 97-164
This Open-File report is a digital geologic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. This digital map database is compiled from previously published sources combined with some new mapping and modifications in nomenclature. The geologic map...
R.F. Yerkes
1997, Open-File Report 97-166
This Open-File report is a digital geologic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. This digital map database is compiled from previously published sources combined with some new mapping and modifications in nomenclature. The geologic map...