The concept of electron activity and its relation to redox potentials in aqueous geochemical systems
D.C. Thorstenson
1984, Open-File Report 84-72
The definition of a formal thermodynamic activity of electrons in redox reactions appears in the literature of the 1920's. The concept of pe as -log (electron activity) was introduced by Jorgensen in 1945 and popularized in the geochemical literature by Sillen, who considered pe and pH as master variables in...
Principal facts for gravity stations in part of west-central Massachusetts
H. R. Burger III
1984, Open-File Report 84-636
Geologic map of the Monte Guilarte Quadrangle, Puerto Rico
R.D. Krushensky, A.F. Curet
1984, IMAP 1556
Reflectance spectra of some alteration minerals; a chart compiled from published data, 0.4 [micro]m - 2.5 [micro]m
Kenneth Lee, G. L. Raines
1984, Open-File Report 84-96
Traveltime and longitudinal dispersion in Illinois streams
J.B. Graf
1984, Open-File Report 84-468
Twenty-seven measurements of traveltime and longitudinal dispersion in 10 Illinois streams provide data needed for estimating traveltime of peak concentration of a conservative solute, traveltime of the leading edge of a solute cloud, peak concentration resulting from a given quantity of solute, and passage time of solute past a given...
Water-table map of Philadelphia, Pennsylvania, 1976-1980
Gary N. Paulachok, C. R. Wood
1984, Hydrologic Atlas 676
Map showing outcrops of granitic rocks and silicic shallow-intrusive rocks, Basin and Range Province, New Mexico
F. A. Hills, K. A. Sargent
1984, Water-Resources Investigations Report 83-4118-D
Map showing outcrops of pre-Quaternary ash-flow tuff and laharic breccia, Basin and Range Province, New Mexico
J. E. Jenness, Kurt Roggensack, D. A. Lopez
1984, Water-Resources Investigations Report 83-4118-F
Map showing outcrops of basaltic rocks, Basin and Range Province and vicinity, Trans-Pecos Texas
C.D. Henry, G.L. Fisher
1984, Water-Resources Investigations Report 83-4121-F
Map showing outcrops of granitic rocks, Basin and Range Province, Arizona
W. D. Johnson
1984, Water-Resources Investigations Report 83-4114-D
No abstract available....
Map showing outcrops of granitic rocks and pre-Quaternary ash-flow tuffs, Basin and Range Province, Oregon
J. E. Jenness, K. A. Sargent, D. A. Lopez
1984, Water-Resources Investigations Report 83-4120-D
Ground-water conditions and well yields in fractured rocks, southwestern Nevada County, California
R. W. Page, P.W. Anttila, K. L. Johnson, M.J. Pierce
1984, Water-Resources Investigations Report 83-4262
This report describes the availability of ground water in the southwestern part of Nevada County, and suggests general guidelines for selecting sites for future ground-water development in the study area. Ground water in this area occurs chiefly in fractures in hard pre-Tertiary metavolcanic and plutonic rocks generally above a depth...
Floods of November 1978 to March 1979 in Arizona and west-central New Mexico
Byron Neil Aldridge, T.A. Hales
1984, Water Supply Paper 2241
Severe flooding occurred in parts of the Little Colorado and Gila River basins as a result of a storm that occurred December 17-20, 1978. The central highlands received 3 to 10 inches of precipitation that was augmented by snowmelt to altitudes of 10,000 feet. The storm was preceded by extremely...
Evaluation of the potential for artificial ground-water recharge in eastern San Joaquin County, California — Phase 2
R. L. Ireland
1984, Water-Resources Investigations Report 83-4207
In response to the increasing demand on water supplies and declining water levels in eastern San Joaquin County, the U.S. Geological Survey, in cooperation with the San Joaquin County Flood Control and Water Conservation District, is evaluating the potential for artificially recharging the aquifer system in eastern San Joaquin County,...
Conceptual hydrologic model of flow in the unsaturated zone, Yucca Mountain, Nevada
P.M. Montazer, W.E. Wilson
1984, Water-Resources Investigations Report 84-4345
The unsaturated volcanic tuffs beneath Yucca Mountain, Nevada, are being evaluated as a host rock for a potential repository for high-level radioactive waste. A conceptual hydrologic model is proposed to describe the flow of fluids through these rocks. Thickness of the unsaturated zone is about 500 to 750 meters and...
Water-quality data for aquifers in east-central New Jersey, 1981-82
D.A. Harriman, L. M. Voronin
1984, Open-File Report 84-821
Data are presented in tables for 238 wells representing nine aquifers underlying the New Jersey Coastal Plain. Approximately two-thirds of these wells are screened in the unconfined Kirkwood-Cohansey aquifer system, the principal source of groundwater in the study area. In addition, seven local streams were sampled in their headwaters under...
Geologic map of the Puerto Real Quadrangle, southwest Puerto Rico
R.P. Volckmann
1984, IMAP 1559
Potential ground-water level changes in the Mississippi River alluvial aquifer in response to proposed navigation improvements on the Yazoo River in Mississippi
A. G. Lamonds, J. M. Kernodle
1984, Water-Resources Investigations Report 84-4039
A proposed navigation project on the Yazoo River between Vicksburg and Greenwood, Mississippi, will increase minimum river stages by more than 19 feet at the site of the proposed lock and dam near Vicksburg, and will decrease minimum river stages by 2 to 7 feet in much of the upper...
Comment on the International Atomic Energy Agency Report on the Advisory Group Meeting on Stable Isotope Reference Samples for Geochemical and Hydrological Investigation, Vienna, Austria, September 19-21, 1983
T.B. Coplen, Irving Friedman, J. R. O’Neil
1984, Water-Resources Investigations Report 84-4136
According to U.S. Geological Survey records, a report prepared by R. Gonfiantini summarizing the findings and recommendations of the 1983 Advisory Group Meeting on Stable Isotope Reference Samples for Geochemical and Hydrologic Investigations held in Vienna does not accurately represent the consultants ' consensus on three important points. The consultants...
Cost-effectiveness of the stream-gaging program in Alaska
R. D. Lamke
1984, Water-Resources Investigations Report 84-4096
This report documents the results of a study of the cost-effectiveness of the stream-gaging program in Alaska. Data uses and funding sources were identified for the 110 continuous stream-gaging stations that were being operated in September 1983 with a budget of about $1,700,000 per year.However, for the purposes of the...
Aeromagnetic map of Tennessee and Kentucky: In color
Isidore Zietz, K. R. Bond
1984, Geophysical Investigations Map 959
No abstract available....
Geohydrology of volcanic tuff penetrated by test well UE-25b#1, Yucca Mountain, Nye County, Nevada
R.G. Lahoud, D.H. Lobmeyer, M.S. Whitfield
1984, Water-Resources Investigations Report 84-4253
Test well UE-25bNo1, located on the east side of Yucca Mountain in the southwestern part of the Nevada Test Site, was drilled to a total depth of 1,220 meters and hydraulically tested as part of a program to evaluate the suitability of Yucca Mountain as a nuclear-waste repository. The well...
Geohydrology and chemical quality of water in Middle and Upper Jurassic and Lower Cretaceous rocks, western Kansas
Jack Kume
1984, Water-Resources Investigations Report 84-4045
Fresh and saline water occur in Upper Jurassic and Lower Cretaceous rocks in western Kansas. The maximum thickness of the Jurassic aquifer is about 50 feet. During 1981, water levels ranged from 255 to 1,160 feet below land surface; the static heads ranged from about 2,400 to 3,100 feet above...
Evaluation of the cost effectiveness of the 1983 stream-gaging program in Kansas
K.D. Medina, C.O. Geiger
1984, Water-Resources Investigations Report 84-4107
The results of an evaluation of the cost effectiveness of the 1983 stream-gaging program in Kansas are documented. Data uses and funding sources were identified for the 140 complete record streamflow-gaging stations operated in Kansas during 1983 with a budget of $793,780. As a result of the evaluation of the...
Simulated artificial recharge in the Big Sioux Aquifer in Minnehaha County, South Dakota
N.C. Koch
1984, Water-Resources Investigations Report 84-4312
The Big Sioux aquifer in Minnehaha County is a water-table aquifer hydraulically connected to the Big Sioux River. A digital-computer model previously developed by the U.S. Geological Survey was used to simulate potential effects of artificial recharge on the aquifer. A simulation was made by recharging water at the rate...
