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...
Field screening of water quality, bottom sediment, and biota associated with irrigation drainage, Wind River Indian Reservation, Wyoming, 1992-93
Dennis N. Grasso, Mary E. Jennings, Wilfrid J. Sadler
1995, Open-File Report 95-121
Physical, chemical, and biological data were collected in 1992-93 from irrigation drainage areas and wetlands of the Wind River Federal Irrigation Project, Wind River Indian Reservation, Wyoming. Most samples collected had concentrations of chemical constituents less than the established levels of concern for water, bottom sediment, and biota. In the...
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...
Potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1994
Leel Knowles
1995, Open-File Report 95-115
This map depicts the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 1994. The map is based on water-level measurements made at more than 900 wells and springs. Ninety-two new wells were added to the September 1994 map--42 in...
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 two contrasting agricultural land uses on shallow groundwater quality in the San Joaquin Valley, California; design and preliminary interpretation
N. M. Dubrovsky, Karen R. Burow, Jo Ann M. Gronberg
1995, Open-File Report 95-286
From 1992 through 1994, the San Joaquin-Tulare Basins Study team of the USGS National Water Quality Assessment program investigated the occurrence and distribution of water quality constituents in shallow groundwater underlying two areas of different agricultural land uses: almond orchards and vineyards. The study was restricted to the alluvial fans...
Hydrogeologic data for the northern Rocky Mountains intermontane basins, Montana
DeAnn M. Dutton, Sean M. Lawlor, D.W. Briar, R.E. Tresch
1995, Open-File Report 95-143
The U.S. Geological Survey began a Regional Aquifer- System Analysis of the Northern Rocky Mountains Intermontane Basins of western Montana and central and central and northern Idaho in 1990 to establish a regional framework of information for aquifers in 54 intermontane basins in an area of about 77,500 square miles....
Selected hydrologic data from Fortymile Wash in the Yucca Mountain area, Nevada, water year 1992
Charles S. Savard
1995, Open-File Report 94-317
Paleogeography and the Late Cretaceous of the Western Interior of middle North America; coal distribution and sediment accumulation
Laura N. Robinson Roberts, Mark A. Kirschbaum
1995, Professional Paper 1561
A synthesis of Late Cretaceous paleogeography of the Western Interior from Mexico to southwestern Canada emphasizes the areal distribution of peat-forming environments during six biostratigraphically constrained time intervals. Isopach maps of strata for each interval reveal the locations and magnitude of major depocenters. The paleogeographic framework provides insight into the...
Dynamic mapping of urban regions: Growth of the San Francisco/Sacramento region
Cindy Bell, William Acevedo, Janis Taylor
1995, Conference Paper, Proceedings of the 1995 Annual Urban and Regional Information Systems Association
A methodology has been developed to document the tremendous growth large metropolitan regions have experienced over time. A GIS was used to compile a database of urbanization for the San Francisco/ Sacramento urban region spanning 140 years. Historical records, USGS topographic maps, aerial photographs, and Landsat imagery were used to...
Supporting data for hydrologic studies in San Francisco Bay, California: Meteorological measurements at the Port of Redwood City during 1992-1994
Laurence E. Schemel
1995, Open-File Report 95-327
Meteorological data were collected during 1992-94 at the Port of Redwood City, California, to support hydrologic studies in southern San Francisco Bay. The meteorological variables that were measured were air temperature, atmospheric pressure, quantum flux (insolation), and four parameters of wind speed and direction: scalar mean horizontal wind speed, (vector)...
PLOTSEIS v2.5.3; a DOS display program for SEG-Y formatted seismic data
F. N. Zihlman
1995, Open-File Report 95-516
Water-quality data for the Ohio River from New Cumberland Dam to Pike Island Dam, West Virginia and Ohio, June-November 1992
Kimberly F. Miller, C.W. Faulkenburg, D.B. Chambers, M.C. Waldron
1995, Open-File Report 95-129
This report contains water-quality data for the Ohio River, collected during the summer and fall of 1992, from river mile 51.1 (3.3 miles upstream from New Cumberland Dam) to river mile 84.0 (0.2 miles upstream from Pike Island Dam). The data were collected to assess the effects of hydropower development...
Volcanic investigations in the Commonwealth of the Northern Mariana Islands, April to May 1994
M. K. Sako, F. A. Trusdell, R. Y. Koyanagi, George Kojima, R. B. Moore
1995, Open-File Report 94-705
A team of U.S. Geological Survey geologists, a seismologist, and technicians gathered new geologic, seismic, and deformation data in the Commonwealth of the Northern Mariana Islands (CNMI). Nine volcanic islands on the active East Mariana Ridge north of Saipan were examined between April 20 and May 3, 1994. In addition,...
Efficiency of a stormwater detention pond in reducing loads of chemical and physical constituents in urban streamflow, Pinellas County, Florida
I.H. Kantrowitz, W. M. Woodham
1995, Water-Resources Investigations Report 94-4217
A multipurpose wet stormwater detention pond in Pinellas Park, Florida was studied to determine its effectiveness in reducing the load of selected water-quality constituents commonly found in urban streamflow. Water-quality samples, and data on streamflow and precipitation were collected at the outflow and principal inflow of detention area 3 on...
Geochemical data of fumarolically altered rocks, Valley of Ten Thousand Smokes, Alaska
Terry E. Keith
1995, Open-File Report 95-47
Samples from a fossil fumarole originating in the 1912 ash-flow tuffin the Valley of Ten Thousand Smokes have been analyzed to ascertain chemical changes resulting from high-temperature fumarolic alteration and subsequent cooling and weathering of the protolith. Samples of the underlying, dominantly leached, dacite-rich portion of the ash-flow tuff adjacent...
Simulation of ground-water flow in the Albuquerque Basin, central New Mexico, 1901-1994, with projections to 2020
J. M. Kernodle, D. P. McAda, C. R. Thorn
1995, Water-Resources Investigations Report 94-4251
This report describes a three-dimensional finite-difference ground-water-flow model of the Santa Fe Group aquifer system in the Albuquerque Basin, which comprises the Santa Fe Group (late Oligocene to middle Pleistocene age) and overlying valley and basin-fill deposits (Pleistocene to Holocene age). The model is designed to...
Meteorological and associated data collected over agricultural fields in Pinal County, Arizona, 1989 and 1990
Sandra J. Owen-Joyce, Paul W. Brown
1995, Open-File Report 95-122
Data were collected at temporary meteorological stations installed in agricultural fields in Pinal County, Arizona, to evaluate the spatial and temporal variability of point data and to examine how station location affects ground-based meteorological data and the resulting values of evapotranspiration calculated using remotely sensed multispectral data from satellites. Time-specific...
Data collection and reduction procedures for 1900 km of total intensity magnetic field data collected with a truck-mounted system in southeastern Arizona, southwestern Colorado, and northwestern Wyoming
Paul E. Gettings, M. E. Gettings, Mark W. Bultman
1995, Open-File Report 95-32
Stratigraphy, sedimentology, paleontology, and paleomagnetism of Pliocene-early Pleistocene lacustrine deposits in two cores from western Utah
R.S. Thompson, Charles G. Oviatt, A.P. Roberts, J. Buchner, R. Kelsey, C.J. Bracht, R. M. Forester, J.P. Bradbury
1995, Open-File Report 95-1
The paleoclimatic history of western Utah is being investigated as part of the USGS Global Change and Climate History Program studies of long-term climatic changes in the western United States. The initial objective of the study is to document the environmental conditions during the mid-Pliocene period of warmer-than-modern global climates...
Streamflow, water-temperature, and specific-conductance data for selected streams draining into Lake Fryxell, lower Taylor Valley, Victoria Land, Antarctica, 1990-92
Paul Von Guerard, Diane M. McKnight, R.A. Harnish, J. W. Gartner, E.D. Andrews
1995, Open-File Report 94-545
During the 1990-91 and 1991-92 field seasons in Antarctica, streamflow, water-temperature, and specific-conductance data were collected on the major streams draining into Lake Fryxell. Lake Fryxell is a permanently ice-covered, closed-basin lake with 13 tributary streams. Continuous streamflow data were collected at eight sites, and periodic streamflow measurements were made...
Complete analytical data for samples of the Big Timber Stock, Crazy Mountains, Montana
E. A. Du Bray
1995, Open-File Report 95-98
Hydrogeology and simulation of flow between the alluvial and bedrock aquifers in the upper Black Squirrel Creek basin, El Paso County, Colorado
Kenneth R. Watts
1995, Water-Resources Investigations Report 94-4238
Anticipated increases in pumping from the bedrock aquifers in El Paso County potentially could affect the direction and rate of flow between the alluvial and bedrock aquifers and lower water levels in the overlying alluvial aquifer. The alluvial aquifer underlies about 90 square miles in the upper Black Squirrel Creek...
Spatial data in geographic information system format on agricultural chemical use, land use, and cropping practices in the United States
William A. Battaglin, Donald A. Goolsby
1995, Water-Resources Investigations Report 94-4176
The spatial data in geographic information system format described in this report consist of estimates for all counties in the conterminous United States of the annual use of 96 herbicides in 1989; annual sales of nitrogen fertilizer, in tons, for 1985-91; and agricultural expenses, land use, chemical use, livestock holdings,...
Water-level fluctuations, water temperatures, and tilts in sandbars -6.5R, 43.1L, and 172.3L, Grand Canyon, Arizona, 1990-93
Michael C. Carpenter, Jason A. Crosswhite, R. L. Carruth
1995, Open-File Report 94-485
Rill erosion, slumping, and fissuring develop on seepage faces of many sandbars along the Colorado River in the Grand Canyon at low river stage. Three sandbars were instrumented with sensors for continual monitoring of stage, pore pressure, ground-water temperature, and tilt to determine the relation between ground-water flow and sandbar...
