Abrupt physical and chemical changes during 1992-1999, Anderson Springs, SE Geyser Geothermal Field, California
Cathy J. Janik, Fraser Goff, Stephen R. Walter, Michael L. Sorey, Dale Counce, Elizabeth M. Colvard
2000, Open-File Report 2000-37
The Anderson Springs area is located about 90 miles (145 kilometers) north of San Francisco, California, in the southwestern part of Lake County. The area was first developed in the late 1800s as a health resort, which was active until the 1930s. Patrons drank a variety of cool to hot...
Streamflow Statistics for the Narraguagus River at Cherryfield, Maine
Robert W. Dudley, Joseph P. Nielsen
2000, Open-File Report 2000-95
Streamflow data have been collected for the Narraguagus River from 1948 to the present (2000) at the U.S. Geological Survey (USGS) streamgaging station at Cherryfield, Maine. This report describes a study done by the USGS to determine streamflow statistics using the streamflow record at the Narraguagus River station for use...
Concentrations of nutrients and sediment from two sites in the Spring Creek basin, Benton County, Washington, 1997-98
Richard J. Wagner
2000, Open-File Report 99-274
Increasing the accuracy of dating and time distribution through late Pleistocene lake sediments by pollen aerosol sequencing
Ronald J. Litwin
2000, Open-File Report 2000-36
Preliminary interpretation of seasonal movement of the Slumgullion landslide as determined from GPS observations, July 1998-July 1999
J. A. Coe, J. W. Godt, W. L. Ellis, W. Z. Savage, J. E. Savage, P. S. Powers, D. J. Varnes, P. Tachker
2000, Open-File Report 2000-102
No abstract available....
Coal recoverability in the Hilight quadrangle, Powder River basin, Wyoming: A prototype study in a western coal field
Lee M. Osmonson, Timothy J. Rohrbacher, Carol L. Molnia, Gerald L. Sullivan
2000, Open-File Report 2000-103
No abstract available....
xwell_radar; a program for calculating crosswell radar traces for layered media
Karl J. Ellefsen
2000, Open-File Report 2000-39
Seasonal movement of the Slumgullion landslide as determined from GPS observations, July 1998-July 1999
J. A. Coe, J. W. Godt, W. L. Ellis, W. Z. Savage, J. E. Savage, P. S. Powers, D. J. Varnes, P. Tachker
2000, Open-File Report 2000-101
No abstract available....
U.S. Geological Survey collaboration with international authors, 1987-1998
Valentina Markusova, Hearn Jr.
2000, Open-File Report 2000-131
Water-quality assessment of the central Nebraska Basins: Design for field operations, 1992 through 1995
Robert B. Swanson, Patrick J. Emmons
2000, Open-File Report 99-454
No abstract available....
Ecological condition and public use of the Cabrillo National Monument intertidal zone 1990-1995
John M. Engle, Gary E. Davis
2000, Open-File Report 2000-98
Interaction between ground water and surface water in the northern Everglades and relation to water budget and mercury cycling; study methods and appendixes
Judson W. Harvey, S.L. Krupa, C.J. Gefvert, Jungyill Choi, R. H. Mooney, J.B. Giddings
2000, Open-File Report 2000-168
The data presented in this report are products of an investigation that quantified interactions between ground water and surface water at several study sites in the northern Everglades. Goals included identifying the major geologic controls and human alterations that affect interactions between ground water and surface water, and determining how...
Considerations for use of the RORA program to estimate ground-water recharge from streamflow records
A. T. Rutledge
2000, Open-File Report 2000-156
The RORA program can be used to estimate ground-water recharge in a basin from analysis of a streamflow record. The program can be appropriate for use if the ground-water flow system is characterized by diffuse areal recharge to the water table and discharge to a stream. The use of...
Re-examining the submarine spring at Crescent Beach, Florida
Peter W. Swarzenski, Christopher D. Reich
2000, Open-File Report 2000-158
No abstract available....
MODFLOW-2000, The U.S. Geological Survey modular ground-water model: User guide to modularization concepts and the ground-water flow process
Arlen W. Harbaugh, Edward R. Banta, Mary C. Hill, Michael G. McDonald
2000, Open-File Report 00-92
MODFLOW is a computer program that numerically solves the three-dimensional ground-water flow equation for a porous medium by using a finite-difference method. Although MODFLOW was designed to be easily enhanced, the design was oriented toward additions to the ground-water flow equation. Frequently there is a need to solve additional equations;...
Selected data from fourteen wildcat wells in the National Petroleum Reserve in Alaska
F. N. Zihlman, H. L. Oliver, P. H. Nelson, J. E. Kibler
2000, Open-File Report 2000-200
No abstract available....
Borehole geophysical logs at Naval Weapons Industrial Reserve Plant, Dallas, Texas
Christopher L. Braun, Roberto Anaya, Eve L. Kuniansky
2000, Open-File Report 2000-76
A shallow alluvial aquifer at the Naval Weapons Industrial Reserve Plant near Dallas, Texas, has been contaminated by organic solvents used in the fabrication and assembly of aircraft and aircraft parts. Natural gamma-ray and electromagnetic-induction borehole geophysical logs were obtained from 162 poly vinyl-chloride-cased wells at the plant and were...
Metal exposure to a benthic invertebrate, Hydropsyche californica, in the Sacramento River down stream of Keswick Reservoir, California
Daniel J. Cain, James L. Carter, Steven V. Fend, Samuel N. Luoma, Charles N. Alpers, Howard E. Taylor
2000, Open-File Report 98-654
No abstract available....
Comparison of phase velocities from array measurements of Rayleigh waves associated with microtremor and results calculated from borehole shear-wave velocity profiles
Hsi-Ping Liu, D.M. Boore, W. B. Joyner, D. H. Oppenheimer, R.E. Warrick, Wenbo Zhang, J. C. Hamilton, L.T. Brown
2000, Open-File Report 2000-216
The Phosphoria Formation at the Hot Springs Mine in Southeast Idaho: A source of selenium and other trace elements to surface water, ground water, vegetation, and biota
David Z. Piper, J. P. Skorupa, T. S. Presser, M. A. Hardy, S. J. Hamilton, M. Huebner, R. A. Gulbrandsen
2000, Open-File Report 2000-50
Major-element oxides and trace elements in the Phosphoria Formation at the Hot Springs Mine, Idaho were determined by a series of techniques. In this report, we examine the distribution of trace elements between the different solid components aluminosilicates, apatite, organic matter, opal, calcite, and dolomite that largely make up the...
Petroleum system of the Gippsland Basin, Australia
Michele G. Bishop
2000, Open-File Report 99-50-Q
The Gippsland Basin Province 3930, located on the southeastern coast of Australia, is formed from two successive failed rifts that developed into a passive margin during the Cretaceous. Formation of this basin is related to the break up of Gondwana, which resulted in the separation of Antarctica from Australia, and...
Geologic controls on the formation of Florida sinkhole lakes
Jack L. Kindinger, James G. Flocks
2000, Open-File Report 2000-294
Creation of digital databases and derivative products for coal and coalbed methane resource assessment; a short course
Romeo M. Flores
2000, Open-File Report 2000-223
Suspended sediment in the St. Francis River at St. Francis, Arkansas, 1986-95
W. Reed Green, C. Shane Barks, Alan P. Hall
2000, Open-File Report 99-227
Daily suspended-sediment concentrations were analyzed from the St. Francis River at St. Francis, Arkansas during 1986 through 1995. Suspended-sediment particle size distribution was measured in selected samples from 1978 through 1998. These data are used to assess changes in suspended-sediment concentrations and loads through time. Suspended-sediment concentrations were positively related...
Graphical user interface for MODFLOW, Version 4
Richard B. Winston
2000, Open-File Report 2000-315
No abstract available....
