Potentiometric surface of the Cockfield aquifer in southeastern Arkansas and the Wilcox aquifers in southern and northeastern Arkansas, October 1996-July 1997
Robert L. Joseph
1998, Water-Resources Investigations Report 98-4084
The Cockfield and Wilcox aquifers are secondary sources of water for local use in southern and northeastern Arkansas, where in 1995 more than 51 million gallons per day of water was withdrawn. During October 1996 to July 1997, water levels in the Cockfield and Wilcox aquifers were measured in 104...
Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97
Jeffery W. East, Edna M. Paul, Stephen D. Porter
1998, Water-Resources Investigations Report 98-4012
Data were collected at 10 stations in the Dickinson Bayou watershed near Houston, Texas, from March 1995 through February 1997 to estimate the concentrations, loads, and yields of selected nutrients that enter the bayou; to characterize the effects on nutrient concentrations of flow conditions, seasonality, and land use; and to...
Flood of January 19-20, 1996 in New York State
Richard Lumia
1998, Water-Resources Investigations Report 97-4252
Heavy rain during January 18-19, 1996, combined with unseasonably warm temperatures that caused rapid snowmelt, resulted in widespread flooding throughout New York State. Damages to highways, bridges, and private property exceeded $100 million. The storm and flooding claimed 10 lives, stranded hundreds of people, destroyed or damaged thousands of homes...
Geohydrology and quality of ground water in unconsolidated aquifers near South Bend, Indiana
K. K. Fowler, L. D. Arihood
1998, Water-Resources Investigations Report 98-4139
IntroductionThe water supply for the City of South Bend, Indiana, and much of surrounding St. Joseph County is provided by 36 municipal and community well fields. Some of these well fields are located near known or potential sources of ground-water contamination that could affect ground-water supplies in the near future....
Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada
S.A. Minor, P. P. Orkild, K. A. Sargent, R.G. Warren, D.A. Sawyer, J.B. Workman
1998, Open-File Report 98-623
This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, dike, and caldera wall), and point (i.e., structural attitude) vector data for the Thirsty Canyon NW 7 1/2' quadrangle in southern Nevada. The map database, which is at 1:24,000-scale resolution, provides geologic...
Summary of hydrology of the regional aquifer systems, Gulf Coastal Plain, south-central United States
H. F. Grubb
1998, Professional Paper 1416-A
There is potential for further development of ground-water supplies in the Gulf Coastal Plain because of the abundance of water in streams, lakes, and swamps and the generally good hydraulic connection between the water table and underlying water-yielding units. The most favorable conditions for further development of ground-water supplies are...
Potential mineral resources, Payette National Forest, Idaho: Description and probabilistic estimation
Arthur A. Bookstrom, Bruce R. Johnson, Theresa M. Cookro, Karen Lund, Kenneth C. Watts, Harley D. King, Merlin D. Kleinkopf, James A. Pitkin, J. David Sanchez, J. Douglas Causey
1998, Open-File Report 98-219-A
The Payette National Forest (PNF), in west-central Idaho, is geologically diverse and contains a wide variety of mineral resources. Mineral deposit types are grouped into locatable, leasable, and salable categories. The PNF has substantial past production and identified resources of locatable commodities, including gold, silver, copper, zinc, tungsten, antimony, mercury,...
Geologic map of the Piedmont in the Beltsville, Laurel, and Washington East quadrangles, Montgomery, Prince Georges, Howard, and Anne Arundel Counties, Maryland and the District of Columbia
Avery A. Drake Jr.
1998, Open-File Report 98-520
No abstract available....
Catalog of the historically active volcanoes of Alaska
T. P. Miller, R. G. McGimsey, D.H. Richter, J.R. Riehle, C.J. Nye, M. E. Yount, Julie A. Dumoulin
1998, Open-File Report 98-582
Alaska hosts within its borders over 80 major volcanic centers that have erupted during Holocene time (< 10,000 years). At least 29 of these volcanic centers (table 1) had historical eruptions and 12 additional volcanic centers may have had historical eruptions. Historical in Alaska generally means the period since 1760...
Mineral resource appraisal of the Salmon National Forest, Idaho
Rick Johnson, Terry Close, Ed McHugh
1998, Open-File Report 98-478
The Salmon National Forest administers 1,776,994 net acres of mountainous terrain located in east-central Idaho. Most of the Forest is in Lemhi County; only a small portion falls within Idaho and Valley Counties. Approximately 426,114 acres of the Frank Church-River of No Return Wilderness extends into the western part of...
Simulation of ground-water flow and stream-aquifer relations in the vicinity of the Savannah River Site, Georgia and South Carolina, predevelopment through 1992
John S. Clarke, Christopher T. West
1998, Water-Resources Investigations Report 98-4062
Ground-water flow and stream-aquifer relations were simulated for seven aquifers in Coastal Plain sediments in the vicinity of the U.S. Department of Energy, Savannah River Site (SRS), in Georgia and South Carolina to evaluate the potential for ground water containing hazardous materials to migrate from the SRS into Georgia through...
Surficial geologic map along the Castle Mountain Fault between Houston and Hatcher Pass Road, Alaska
Peter J. Haeussler
1998, Open-File Report 98-480
The surficial geology of the map area is dominated by sedimentary deposits laid down during and after the Naptowne glaciation (Karlstrom, 1964) of late Pleistocene age. During this episode, a large valley glacier flowed westward down the Matanuska Valley along the southern flank of the Talkeetna Mountains. The youngest of...
Map showing areas with potential for talc deposits in the Gravelly, Greenhorn, and Ruby Ranges and the Henrys Lake Mountains of southwestern Montana
Bradley S. Van Gosen, Richard B. Berg, Jane M. Hammarstrom
1998, Open-File Report 98-224-B
For the last several years, Montana has been the leading talc producing state in the United States (U.S. Geological Survey, 1996). For example, in 1992 Montana supplied about 40 percent of the U.S. mine production of talc (Virta, 1992). All of this production has come from the large deposits of...
GLORIA sidescan sonar field data and navigation data collected off Puerto Rico in 1985 and the eastern United States in 1987
David C. Twichell, Valerie F. Paskevich, Catherine M. Delorey
1998, Open-File Report 98-619
This CD-ROM contains copies of the navigation and field sidescan sonar data collected within the Exclusive Economic Zone (EEZ) surrounding Puerto Rico and off the eastern United States during cruises aboard the R/V FARNELLA. The survey of the Puerto Rico EEZ was completed during one cruise between...
Map showing areas with potential for garnet resources in bedrock and placer in the Blacktail Mountains and the Gravelly, Greenhorn, Ruby, and Snowcrest ranges of southwestern Montana
Bradley S. Van Gosen, Jane M. Hammarstrom, Karl S. Kellogg, Richard B. Berg
1998, Open-File Report 98-224-A
Garnet crystals, some of gem quality, have been sought by rock hounds for many years in the alluvial deposits of the Alder Gulch-Ruby River area. Since 1995, garnet have been extracted from these gravels for industrial products at two separately own placer mines in the region: (1) at Cominco American's...
Rotational and accretionary evolution of the Klamath Mountains, California and Oregon, from Devonian to present time
William P. Irwin, Edward A. Mankinen
1998, Open-File Report 98-114
The purpose of this report is to show graphically how the Klamath Mountains grew from a relatively small nucleus in Early Devonian time to its present size while rotating clockwise approximately 110°. This growth occurred by the addition of large tectonic slices of oceanic lithosphere, volcanic arcs, and melange during...
Environmental setting of the San Joaquin-Tulare basins, California
JoAnn A. Gronberg, Neil M. Dubrovsky, Charles R. Kratzer, Joseph L. Domagalski, Larry R. Brown, Karen R. Burow
1998, Water-Resources Investigations Report 97-4205
The National Water-Quality Assessment Program for the San Joaquin-Tulare Basins began in 1991 to study the effects of natural and anthropogenic influences on the quality of ground water, surface water, biology, and ecology. The San Joaquin-Tulare Basins study unit, which covers approximately 31,200 square miles in central California, is made...
Hydrogeology and simulation of ground-water flow in the Sandstone Aquifer, northeastern Wisconsin
T.D. Conlon
1998, Water-Resources Investigations Report 97-4096
Municipalities in the lower Fox River Valley in northeastern Wisconsin obtain their water supply from a series of permeable sandstones and carbonates of Cambrian to Ordovician age. Withdrawals from this "sandstone aquifer" have resulted in water levels declining at a rate of more than 2 feet per year. The U.S....
Cenozoic deformation of the Franciscan Complex, eastern Santa Maria Basin, California. Regional thermal maturity of surface rocks, onshore Santa Maria Basin and Santa Barbara-Ventura Basin area, California
Arthur D. Wahl, Nancy D. Naeser, Caroline M. Isaacs, Margaret A. Keller
1998, Bulletin 1995-W,X
No abstract available....
Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, 1993-1995
Karen R. Burow, Jennifer L. Shelton, Neil M. Dubrovsky
1998, Water-Resources Investigations Report 97-4284
The processes that affect nitrate and pesticide occurrence may be better understood by relating ground-water quality to natural and human factors in the context of distinct, regionally extensive, land- use settings. This study assesses nitrate and pesticide occurrence in ground water beneath three agricultural land-use settings in the eastern San...
Water quality assessment of the San Joaquin-Tulare basins, California: Analysis of available data on nutrients and suspended sediment in surface water, 1972-1990
Charles R. Kratzer, Jennifer L. Shelton
1998, Professional Paper 1587
Nutrients and suspended sediment in surface water of the San Joaquin-Tulare basins in California were assessed using 1972-1990 data from the U.S. Geological Survey's National Water Information System and the U.S. Environmental Protection Agency's STOrage and RETrieval database. Loads of nutrients and suspended sediment were calculated at several sites and...
Concepts for monitoring water quality in the Spokane River Basin, northern Idaho and eastern Washington
M.A. Beckwith
1998, Open-File Report 98-534
Numerous environmental studies have been conducted in the Spokane River Basin over the past several decades by government agencies, academic institutions, and environmental engineering firms. Most of these efforts have focused on the environmental effects of more than a century of silver, lead, and zinc mining and oreprocessing activities in the South Fork Coeur d'Alene River valley in...
Preliminary report on water quality associated with the abandoned Fontana and Hazel Creek Mines, Great Smoky Mountains National Park, North Carolina and Tennessee
R.R. Seal II, J. M. Hammarstrom, C.S. Southworth, A. L. Meier, D.P. Haffner, A. P. Schultz, G.S. Plumlee, M.J. Flohr, J.C. Jackson, S. M. Smith, P. L. Hageman
1998, Open-File Report 98-476
Geohydrology and simulated ground-water flow in northwestern Elkhart County, Indiana
L. D. Arihood, D.A. Cohen
1998, Water-Resources Investigations Report 97-4204
In 1994, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and the City of Elkhart, developed a ground-water model of the Elkhart, Indiana, area to determine the avail-ability and source of water at potential new well fields. The modeled area covered 190 square miles of northwestern...
Geologic map of Paleozoic rocks in the Calico Hills, Nevada Test Site, southern Nevada
James C. Cole, Patricia H. Cashman
1998, Open-File Report 98-101
The Calico Hills area in the southwestern part of the Nevada Test Site, Nye County, Nevada, exposes a core of pre-Tertiary rocks surrounded by middle Miocene volcanic strata. This map portrays the very complex relationships among the pre-Tertiary stratigraphic units of the region. The Devonian and Mississippian rocks of the...
