Hydrogeology and selected water-quality aspects of the Hueco Bolson Aquifer at the Hueco Bolson Recharge Project area, El Paso, Texas
P.M. Buszka, R.D. Brock, R. P. Hooper
1994, Water-Resources Investigations Report 94-4092
Samples of ground water and tertiary-treated water were evaluated to determine the distribution of injected water and trihalomethane compounds in the Hueco bolson aquifer near El Paso, Texas. Chloride and nitrate concentrations and oxygen-18/oxygen-16 (δ18O) values were used with end-member mixing analysis to estimate the fractional contributions of injected water,...
Ground-water quality and geochemistry in Carson and Eagle Valleys, western Nevada and eastern California
Alan H. Welch
1994, Open-File Report 93-33
Aquifers in Carson and Eagle Valleys are an important source of water for human consumption and agriculture. Concentrations of major constituents in water from the principal aquifers on the west sides of Carson and Eagle Valleys appear to be a result of natural geochemical reactions with minerals derived primarily from...
Elements of infrastructure and seismic hazard in the central United States
Russell L. Wheeler, B. Susan Rhea, Arthur C. Tarr
1994, Professional Paper 1538-M
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Missouri. Seismicity continues to the present day throughout a tightly clustered patter of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern...
Hydrogeology of recharge areas and water quality of the principal aquifers along the Wasatch Front and adjacent areas, Utah
P.B. Anderson, D. D. Susong, S.R. Wold, V.M. Heilweil, R. L. Baskin
1994, Water-Resources Investigations Report 93-4221
The principal basin-fill aquifers in Cache Valley, the lower Bear River area, and along the Wasatch Front provide ground water to about 84 percent of the population of Utah. Recharge areas for the principal aquifers were mapped to provide information needed for the implementation of ground-water quality regulations and a...
Zebra mussels in the eastern United States
Kim H. Haag
1994, Fact Sheet 014-94
Quality of ground water around Vadnais Lake and in Lambert Creek watershed, and interaction of ground water with Vadnais Lake, Ramsey County, Minnesota
J. F. Ruhl
1994, Water-Resources Investigations Report 94-4062
Vadnais Lake is located in northern Ramsey County, Minnesota. The lake is managed by the St. Paul Water Utility for storage of municipal water supplies that are provided to residents of St. Paul and surrounding communities. In recent years, algal blooms in Vadnais Lake have caused taste and odor problems...
Analysis of data on nutrients and organic compounds in ground water in the upper Snake River basin, Idaho and western Wyoming, 1980-91
Michael G. Rupert
1994, Water-Resources Investigations Report 94-4135
Nutrient and organic compound data from the U.S. Geological Survey and the U.S. Environmental Protection Agency STORET data bases provided information for development of a preliminary conceptual model of spatial and temporal ground-water quality in the upper Snake River Basin. Nitrite plus nitrate (as nitrogen; hereafter referred to as nitrate)...
Altitude and configuration of the potentiometric surface, May and June 1993, and change in water level 1983-93, in the carbonate rocks in part of East Whiteland and Charlestown Townships, Chester County, Pennsylvania
B. C. McManus, R. A. Sloto
1994, Open-File Report 93-659
A map showing ground-water levels in the carbonate rocks of northern Chester County, Pa., was constructed on the basis of water levels in 51 wells measured in May and June 1993. The area studied underlies parts of East Whiteland and Charlestown Townships. Water-level altitudes range from about 413 feet above...
Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Owyhee and Vale Projects, Oregon and Idaho, 1990-91
F. A. Rinella, W.H. Mullins, C.A. Schuler
1994, Water-Resources Investigations Report 93-4156
A reconnaissance investigation was conducted during 1990--91 in the Owyhee and Vale projects in eastern Oregon and southwestern Idaho, as well as at a number of sites in the Snake River and tributaries to the Snake River in the area of study. The objective of the study was to determine...
Bibliography of selected water-resources information for the Arkansas River basin in Colorado through 1985
John M. Kuzmiak, Hyla H. Strickland
1994, Open-File Report 94-331
The Arkansas River basin composes most of southeastern Colorado, and the numerous population centers and vast areas of agricultural development are located primarily in the semiarid part of the basin east of the Continental Divide. Because effective management and development of water resources in this semiarid area are essential...
A search for paleoliquefaction and evidence bearing on the recurrence behavior of the great 1811-12 New Madrid earthquakes
S.G. Wesnousky, L.M. Leffler
1994, Professional Paper 1538-H
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Missouri. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern...
Preliminary bedrock geologic map of parts of the Lower Waterford, Concord, Littleton, and Miles Pond 7 1/2-minute quadrangles, Vermont and New Hampshire
Douglas W. Rankin
1994, Open-File Report 94-410
The map area, in east-central Vermont and adjacent New Hampshire, consists of parts of the Lower Waterford, Concord, Littleton and Miles Pond 7 1/2-minute quadrangles (Fig. 1) that together constitute the Littleton 15-minute quadrangle. The mapping is part of the effort to produce a new bedrock geologic map of Vermont...
Maps showing the thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains-northern plains states (west of 102 degrees west longitude)
D. R. Soller
1994, IMAP 1970-D
Evidence of contemporary and ancient excess fluid pressure in the New Madrid seismic zone of the Reelfoot Rift, central United States
F. A. McKeown, S. Diehl
1994, Professional Paper 1538-N
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Missouri. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern...
Potentiometric surface of the middle Potomac Aquifer in Virginia, 1993
E. C. Hammond, E. R. McFarland, M. J. Focazio
1994, Open-File Report 94-372
Ground-water level measurements from 50 wells in the middle Potomac aquifer in the Coastal Plain Physiographic Province of Virginia in 1993 were used to prepare a map of the potentiometric surface of the aquifer. The map shows the potentiometric surface of the middle Potomac aquifer sharply declining eastward from nearly...
Sedimentary patterns across the Paleocene-Eocene boundary in the Atlantic and Gulf Coastal Plains of the United States
Thomas G. Gibson, Laurel M. Bybell
1994, Bulletin - Societe Belge de Geologie (103) 237-265
Fossiliferous clay and sand belonging to calcareous nannofossil Zones NP 9 (latest Paleocene) and NP 10 (earliest Eocene) are widespread in the US Gulf and Atlantic Coastal Plains. Although the thickness of Zone NP 9-NP 10 strata is several times greater in the eastern Gulf Coastal Plain than in the...
Environmental geology of Warren County, New Jersey; bedrock geology
Richard A. Volkert, Gregory C. Herman, Avery A. Drake Jr., Jack B. Epstein, Richard F. Dalton, Donald H. Monteverde
1994, Open File Map 15A
No abstract available....
Analysis of the surface hydrology in a regional climate model
F. Giorgi, Steven W. Hostetler, Christine Shields Brodeur
1994, Quarterly Journal of the Royal Meteorological Society (120) 161-183
This paper discusses the surface hydrology of a multi‐year simulation of present day climate over the United States (US) conducted with a regional climate model (RegCM) nested within a general circulation model (GCM). The RegCM, which is run with a 60 km gridpoint spacing is interactively coupled with a state‐of‐the‐art...
Long-period earthquakes in the Long Valley Caldera Region, eastern California
Andrew M. Pitt, David P. Hill
1994, Geophysical Research Letters (21) 1679-1682
Most earthquakes occurring near Long Valley caldera since the onset of recurring swarm activity in 1980 have the broad-band signature typical of tectonic or volcano-tectonic earthquakes with impulsive, high-frequency P and S waves. With the Mammoth Mountain earthquake swarm in mid 1989, we began detecting occasional events with a marked...
GPS measured rates of deformation in the northern San Francisco Bay Region, California, 1990–1993
S. D. P. Williams, Jerry L. Svarc, Michael Lisowski, W.H. Prescott
1994, Geophysical Research Letters (21) 1511-1514
A 100-km-long, 13-station profile extending across the San Andreas fault system north of San Francisco Bay was measured 7 times between March 1990 and January 1993 with the Global Positioning System (GPS). The data have been processed using the Bernese Version 3.2 software. Data from a continental-scale fiducial network were...
Mourning dove population trend estimates from Call-Count and North American Breeding Bird Surveys
John R. Sauer, David D. Dolton, Sam Droege
1994, Journal of Wildlife Management (58) 506-515
The mourning dove (Zenaida macroura) Call-count Survey and the North American Breeding Bird Survey provide information on population trends of mourning doves throughout the continental United States. Because surveys are an integral part of the development of hunting regulations, a need exists to determine which survey provides precise information. We...
Climate, soil water storage, and the average annual water balance
P. C. D. Milly
1994, Water Resources Research (30) 2143-2156
This paper describes the development and testing of the hypothesis that the long-term water balance is determined only by the local interaction of fluctuating water supply (precipitation) and demand (potential evapotranspiration), mediated by water storage in the soil. Adoption of this hypothesis, together with idealized representations of relevant input variabilities...
Preliminary U-series disequilibrium and thermoluminescence ages of surficial deposits and paleosols associated with Quaternary faults, eastern Yucca Mountain
James B. Paces, Christopher M. Menges, B. Wildmann, J. R. Wesling, Charles A. Bush, Kiyoto Futa, H. T. Millard, P. B. Maat, John W. Whitney
1994, Conference Paper, High Level Radioactive Waste Management 1994
No abstract available....
Hydrogeology, simulation of regional ground-water flow, and saltwater intrusion, Potomac-Raritan-Magothy Aquifer System, Northern Coastal Plain of New Jersey
Amleto A. Pucci Jr., Daryll A. Pope, JoAnn M. Gronberg
1994, New Jersey Geological Survey Report 36
The Potomac-Raritan-Magothy aquifer system in Middlesex and Monmouth Counties in the northern Coastal Plain of New Jersey consists primarily of unconsolidated Cretaceous sediments, which are divided into the upper and middle aquifers and confining units. These units, which strike northeastsouthwest along the Fall Line, dip and thicken to the southeast....
Petrogenesis of the highly potassic 1.42 Ga Barrel Spring pluton, southeastern California, with implications for mid-Proterozoic magma genesis in the southwestern USA
James D. Gleason, Calvin F. Miller, J. L. Wooden, Victoria C. Bennett
I. S. E. Carmichael, editor(s)
1994, Contributions to Mineralogy and Petrology (118) 182-197
Syenites from the Barrel Spring pluton were emplaced in the Early Proterozoic Mojave crustal provine of southeastern California at 1.42 Ga. All rocks, even the most mafic, are highly enriched in incompatible elements (e.g. K2O 4–12 wt%, Rb 170–370 ppm, Th 12–120 ppm, La 350–1500xchondrite, La/Ybn 35–100)....
