Late Proterozoic diabase dikes of the New Jersey Highlands; a remnant of Iapetan rifting in the north-central Appalachians
R.A. Volkert, J.H. Puffer
1995, Professional Paper 1565-A
Diabase dikes of widespread occurrence intrude only middle Proterozoic rocks in the New Jersey Highlands. These dikes are enriched in TiO2, P2O5, Zr, and light rare earth elements, and have compositions that range from tholeiitic to alkalic. Dike descriptions, field relations, petrography, geochemistry, petrogenesis, and tectonic setting are discussed. The...
Compilation of sample preparation and analytical methods and results of chemical, isotopic, and fluid inclusion analyses, Rodalquilar gold-alunite deposit, Spain
Antonio Arribas Jr., C. G. Cunningham, E.H. McKee, R. O. Rye, J. J. Rytuba, R. M. Tosdal, M.D. Wasserman, Masahiro Aoki
1995, Open-File Report 95-221
Geohydrologic framework, historical development of the ground-water system, and general hydrologic and water-quality conditions in 1990, South San Francisco Bay and Peninsula area, California
John L. Fio, David A. Leighton
1995, Open-File Report 94-357
A non-lethal measure of smolt status of juvenile steelhead based on body morphology
John W. Beeman, D.W. Rondorf, M.E. Tilson, D.A. Venditti
1995, Transactions of the American Fisheries Society (124) 764-769
A nonlethal morphometric method to assess smolt status of juvenile steelhead Oncorhynchus mykiss was validated. Fish were collected from hatcheries before release and during their seaward migration in a large river system. Fifteen anatomical landmarks were digitized from photographs of each fish, resulting in 34 morphometric characters based on a truss network....
Geologic map of the Cane Springs Quadrangle, northern Mohave County, Arizona
Ivo Lucchitta, P.O. Basdekas, R. G. Bohannon, H.J. Reick, Carol M. Dehler
1995, Open-File Report 95-86
Potential for chemical transport beneath a storm-runoff recharge (retention) basin for an industrial catchment in Fresno, California
R. A. Schroeder
1995, Water-Resources Investigations Report 93-4140
A wide variety of chemicals from urban runoff were found at elevated concentrations in sediment that accumulated in a storm-runoff recharge basin in an industrial part of the city of Fresno. The chemicals include as many as 20 inorganic elements and about the same number of organic compounds, primarily organochlorine...
Map showing sand and gravel deposits in the Bigfork-Avon area, Flathead, Lake, Lewis and Clark, Missoula, and Powell counties, Montana
I. J. Witkind
1995, IMAP 2446
Water-related scientific activities of the U.S. Geological Survey in Nevada, fiscal years 1993-94
M. Teresa Foglesong (compiler)
1995, Open-File Report 95-126
The U.S. Geological Survey has been collecting water-resources data in Nevada since 1890. Most of the projects that constitute the current Nevada District program can be classified as either basic- data acquisition (about 25 percent) or hydrologic interpretation (about 75 percent). About 39 percent of the activities are supported by...
Reconnaissance geologic map of the southern Sierra Nevada, Kern, Tulare, and Inyo counties, California
D. C. Ross
1995, IMAP 2295
Geologic overview of Clark County, Kansas
Morris W. Green, G. M. Fairer
1995, Open-File Report 95-256
Gross-beta activity in ground water: natural sources and artifacts of sampling and laboratory analysis
Alan H. Welch, Zoltan Szabo, David L. Parkhurst, Peter C. Van Metre, Ann H. Mullin
1995, Applied Geochemistry (10) 491-503
Gross-beta activity has been used as an indicator of beta-emitting isotopes in water since at least the early 1950s. Originally designed for detection of radioactive releases from nuclear facilities and weapons tests, analysis of gross-beta activity is widely used in studies of naturally occurring radioactivity in ground water. Analyses of...
Scour at selected bridge sites in Mississippi
K.V. Wilson Jr.
1995, Water-Resources Investigations Report 94-4241
Scour data were collected during 1936-94 at 22 bridge sites in Mississippi. The drainage area of the bridge-scour sites ranged from 60.8 to 5,720 square miles, and the slope in the vicinity of each site ranged from 0.00011 to 0.00163 foot per foot. Measured pier-scour depths ranged from 0.6 to...
Estimating 14C groundwater ages in a methanogenic aquifer
Ramon Aravena, Leonard I Wassenaar, Niel Plummer
1995, Water Resources Research (31) 2307-2317
This paper addresses the problem of 14C age dating of groundwaters in a confined regional aquifer affected by methanogenesis. Increasing CH4 concentrations along the groundwater flow system and 13C and 14C isotopic data for dissolved inorganic carbon, dissolved organic carbon, and CH4 clearly show the effect of methanogenesis on groundwater chemistry. Inverse reaction path modeling...
Nonpoint sources of pesticides in the San Joaquin River, California; input from winter storms, 1992-93
Joseph L. Domagalski
1995, Open-File Report 95-165
Organophosphate insecticides, including chlor- pyrifos, diazinon, and methidathion, are applied to dormant orchards in the San Joaquin Valley, California, during late December through January. This time frame coincides with the period of heaviest rainfall in the valley, and rainfall mobilizes a portion of these pesticides from the orchards. The pesticides...
Hydrogeology and simulation of ground-water flow in the Eutaw-McShan aquifer and in the Tuscaloosa aquifer system in northeastern Mississippi
E. W. Strom, M. J. Mallory
1995, Water-Resources Investigations Report 94-4223
The Eutaw-McShan aquifer and Tuscaloosa aquifer system in northeastern Mississippi were investi- gated to better understand the hydrogeology and the ground-water flow in and between the aquifers. A numerical model was developed to simulate ground- water flow for prepumping and pumping conditions, and model simulatons projected the possible effects of...
Ground-water use by public-supply systems in Tennessee, 1990
S. S. Hutson
1995, Open-File Report 94-483
Ground-water use by public water-supply systems during 1990 was inventoried in Tennessee. Ground- water withdrawals were estimated to average 269 million gallons per day (Mgal/d), or 38 percent of the total public-supply water use. This volume represents an increase of 34 percent in the use of ground water for public...
Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska
D. A. Brew
1995, Open-File Report 95-215
No abstract available....
Climatic and lake temperature data for Wetland P1, Cottonwood Lake Area, Stutsman County, North Dakota, 1982-87
Renee S. Parkhurst, A.M. Sturrock, D.O. Rosenberry, T. C. Winter
1995, Open-File Report 94-546
Research on the hydrology of Wetland P1 and the Cottonwood Lake Area includes the study of evaporation. Presented here in a graphical format are those data collected during the open-water seasons of 1982-87 that were needed for energy- budget and mass-transfer evaporation studies. The data include air temperatures, water surface...
Effects of surface mining on the hydrology and biology in the Stony Fork basin, Fayette County, Pennsylvania, 1978-85
D.R. Williams, J.R. Ritter, T.M. Mastrilli
1995, Water-Resources Investigations Report 94-4056
The effects of surface coal mining on the water quality, sediment discharge, and aquatic biology of streams in the Stony Fork Basin in southwestern Pennsylvania were studied from 1978 through 1985. Data were collected at five stream sites and one mine discharge site. Field data included streamflow, temperature, specific conductance,...
Water resources and potential effects of ground-water development in Maggie, Marys, and Susie Creek basins, Elko and Eureka counties, Nevada
R. W. Plume
1995, Water-Resources Investigations Report 94-4222
The basins of Maggie, Marys, and Susie Creeks in northeastern Nevada are along the Carline trend, an area of large, low-grade gold deposits. Pumping of ground water, mostly for pit dewatering at one of the mines, will reach maximum rates of about 70,000 acre-ft/yr (acre-feet per year) around the year...
Water-quality assessment of the Kentucky River Basin, Kentucky: Distribution of metals and other trace elements in sediment and water, 1987-90
Stephen D. Porter, Kevin D. White, J. R. Clark
1995, Water-Resources Investigations Report 94-4134
The U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program is designed to provide a nationally consistent description of the current status of water quality, to define water-quality trends, and to relate past and present water-quality conditions to natural features, uses of land and water, and other water-quality effects from...
Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona
T. J. Lopes, K. D. Fossum, J. V. Phillips, J. E. Monical
1995, Water-Resources Investigations Report 94-4240
Stormwater and streamflow in the Phoenix, Arizona, area were monitored to determine the physical, chemical, and microbial characteristics of storm- water from areas having different land uses; to describe the characteristics of streamflow in a river that receives urban stormwater; and to estimate constituent loads in stormwater from unmonitored areas...
Ground deformation in Granada Hills and Mission Hills resulting from the January 17, 1994, Northridge, California, earthquake
Suzanne Hecker, D.J. Ponti, C. D. Garvin, T. J. Powers, T. E. Fumal, J. C. Hamilton, R. V. Sharp, M. J. Rymer, C.S. Prentice, F. R. Cinti
1995, Open-File Report 95-62
No abstract available....
Methane production and consumption monitored by stable H and C isotope ratios at a crude oil spill site, Bemidji, Minnesota
Kinga Revesz, Tyler B. Coplen, Mary J. Baedecker, Pierre D. Glynn
1995, Applied Geochemistry (10) 505-516
Stable isotopic ratios of C and H in dissolved CH4 and C in dissolved inorganic C in the ground water of a crude-oil spill near Bemidji, Minnesota, support the concept of CH4production by acetate fermentation with a contemporaneous increase in HCO3−concentration. Methane concentrations in the saturated zone decrease from 20.6...
The Southern California Network Bulletin; January - December 1994
Lisa A. Wald, Katrin N. Hafner, A. Steve Bryant
1995, Open-File Report 95-204
