Seismic profiling constraints on the evolution of the central Brooks Range, Arctic Alaska
E. S. Wissinger, A. R. Levander, J. S. Oldow, Gary S. Fuis, W. J. Lutter
1998, Book chapter, Architecture of the central Brooks Range fold and thrust belt, Arctic Alaska
No abstract available....
Objective delineation of lahar-inundation hazard zones
Richard M. Iverson, Steven P. Schilling
1998, GSA Bulletin (110) 972-984
A new method of delineating lahar hazard zones in valleys that head on volcano flanks provides a rapid, objective, reproducible alternative to traditional methods. The rationale for the method derives from scaling analyses of generic lahar paths and statistical analyses of 27 lahar paths documented at nine volcanoes. Together these...
An empirical method for estimating travel times for wet volcanic mass flows
Thomas C. Pierson
1998, Bulletin of Volcanology (60) 98-109
Travel times for wet volcanic mass flows (debris avalanches and lahars) can be forecast as a function of distance from source when the approximate flow rate (peak discharge near the source) can be estimated beforehand. The near-source flow rate is primarily a function of initial flow volume, which should be...
Analysis and simulation of reactive transport of metal contaminants in ground water in Pinal Creek Basin, Arizona
James G. Brown, R. L. Bassett, Pierre D. Glynn
1998, Journal of Hydrology (209) 225-250
Large-scale mining activities have generated a plume of acidic ground water more than 15 km long in the regional aquifer of the Pinal Creek Basin. A one-dimensional reactive-transport model was developed using PHREEQC to aid in the analysis of transport and chemical processes in the plume and to determine the uses...
Detection of conduit-controlled ground- water flow at selected sites in northwestern Puerto Rico
Jesus Rodriguez-Martinez, R.T. Richards
1998, Conference Paper, Proceedings : tropical hydrology and Caribbean water resources : Third International Symposium on Tropical Hydrology, and Fifth Caribbean Islands Water Resources Congress
Synoptic survey of water quality and bottom sediments, San Juan Bay estuary system, Puerto Rico, December 1994-July 1995
R. M. Webb, Fernando Gómez-Gómez
1998, Water-Resources Investigations Report 97-4144
Assessing simulated ecosystem processes for climate variability research at Glacier National Park, USA
Joseph D. White, Steven W. Running, Peter E. Thornton, Robert E. Keane, Kevin C. Ryan, Daniel B. Fagre, Carl H. Key
1998, Ecological Applications (8) 805-823
Glacier National Park served as a test site for ecosystem analyses that involved a suite of integrated models embedded within a geographic information system. The goal of the exercise was to provide managers with maps that could illustrate probable shifts in vegetation, net primary production (NPP), and hydrologic responses associated...
Contrasting behavioral and feeding strategies recorded by tidal-flat bivalve trace fossils from the Upper Carboniferous of eastern Kansas
M. Gabirela Mangano, Luis A. Buatois, R.R. West, Christopher G. Maples
1998, Palaios (13) 335-351
Upper Carboniferous tidal-flat deposits near Waverly, eastern Kansas (Stull Shale Member, Kanwaka Shale Formation), host abundant and very well-preserved trace fossils attributed to the activity of burrowing bivalves. Thin shell lenses with an abundant bivalve fauna area associated with the ichnofossil-bearing beds and afford an unusual opportunity to relate trace...
Human influences on trophic cascades along rocky shores
D. R. Lindberg, James A. Estes, Kenneth I. Warheit
1998, Ecological Applications (8) 880-890
A three-trophic-level interaction among American Black Oystercatchers (Haematopus bachmani), limpets (Lottia spp.), and erect fleshy algae in rocky intertidal communities of central and southern California was documented via manipulative and “natural” experiments. Removal of the territorial limpet (Lottia gigantea) initially caused large increases in the percent cover of erect fleshy algae,...
Unconventional natural gas resources on U.S. federal lands
Robert A. Crovelli, J. W. Schmoker, Vito F. Nuccio
1998, Fact Sheet 030-98
Digital bedrock geologic map of the Rutland Quadrangle, Vermont
N. M. Ratcliffe
1998, Open-File Report 98-121-B
Geochemical baselines for surface waters and stream sediments and processes controlling element mobility, Rough and Ready Creek and Oregon Caves National Monument and vicinity, southwestern Oregon
W. R. Miller, D. B. Smith, A. L. Meier, Paul H. Briggs, P. M. Theodorakos, R. F. Sanzolone, R. B. Vaughn
1998, Open-File Report 98-201
Concentrations of chlorinated organic compounds in biota and bed sediment in streams of the lower San Joaquin River drainage, California
Larry R. Brown
1998, Open-File Report 98-171
Samples of resident biota and bed sediments were collected in 1992 from 18 sites on or near the floor of the San Joaquin Valley, California, for analysis of 33 organochlorine compounds. The sites were divided into five groups on the basis of physiographic region and land use. Ten compounds were...
Compilation of 19 sonic and density logs from 10 oil test wells in southwestern Oregon
T.M. Brocher, Elba Horta
1998, Open-File Report 98-237
Shallow ground-water quality of selected land-use/aquifer settings in the South Platte River basin, Colorado and Nebraska, 1993-95
B. W. Bruce, P.B. McMahon
1998, Water-Resources Investigations Report 97-4229
No abstract available....
Digital and preliminary bedrock geologic map of the Pico Peak quadrangle, Vermont
Gregory J. Walsh, Nicholas M. Ratcliffe
1998, Open-File Report 98-226-A
No abstract available....
Sedimentary environments in Long Island Sound: A guide to sea-floor management in a large urbanized estuary
Water Resources Division, U.S. Geological Survey
1998, Fact Sheet 041-98
No abstract available....
Ground-water conditions in Georgia, 1997
A. M. Cressler
1998, Open-File Report 98-172
Ground-water conditions in Georgia during 1997 and for the period of record were evaluated using data from ground-water-level and ground-water-quality monitoring networks. Data for 1997 included in this report are from continuous water-level records from 71 wells and chloride analyses from 14 wells. In 1997, annual mean ground-water levels in Georgia...
Tectonic evolution of the Crater Flat basin, Yucca Mountain region, Nevada
C. J. Fridrich
1998, Open-File Report 98-33
Status of ground-water resources at U.S. Navy Support Facility, Diego Garcia; summary of hydrologic and climatic data, January 1995 through September 1997
J.D. Torikai
1998, Open-File Report 98-1
Geologic implications of data from the American Quasar 27k-22 Hagenbarth drillhole, Beaverhead County, Montana
W. J. Perry Jr.
1998, Open-File Report 98-30
Ground-water hydrology and simulation of ground-water flow at Operable Unit 3 and surrounding region, U.S. Naval Air Station, Jacksonville, Florida
J.H. Davis
1998, Open-File Report 98-68
The Naval Air Station, Jacksonville (herein referred to as the Station), occupies 3,800 acres adjacent to the St. Johns River in Duval County, Florida. Operable Unit 3 (OU3) occupies 134 acres on the eastern side of the Station and has been used for industrial and commercial purposes since World War...
Benthic foraminifera and ostracoda from Virginia continental shelf
T. M. Cronin, S. E. Ishman, Robert Wagner, G.R. Cutter Jr.
1998, Open-File Report 98-29
Can another great volcanic eruption happen in Alaska?
Judy Fierstein, Wes Hildreth, James W. Hendley II, Peter H. Stauffer
1998, Fact Sheet 075-98
Geohydrology of the Central Oahu, Hawaii, ground-water flow system and numerical simulation of the effects of additional pumping
Delwyn S. Oki
1998, Water-Resources Investigations Report 97-4276
A two-dimensional, finite-difference, ground-water flow model was developed for the central Oahu flow system, which is the largest and most productive ground-water flow system on the island. The model is based on the computer code SHARP which simulates both freshwater and saltwater flow. The ground-water model was developed using average...
