Estimating peak flow characteristics at ungaged sites by ridge regression
Gary D. Tasker
1982, Open-File Report 82-333
A regression simulation model, is combined with a multisite streamflow generator to simulate a regional regression of 50-year peak discharge against a set of basin characteristics. Monte Carlo experiments are used to compare the unbiased ordinary lease squares parameter estimator with Hoerl and Kennard's (1970a) ridge estimator in which the...
Three-dimensional mathematical model for simulating the hydrologic system in the Piceance basin, Colorado
J.O. Taylor
1982, Open-File Report 82-637
Map showing zones of similar ages of surface faulting and estimated maximum earthquake size in the Basin and Range Province and selected adjacent areas
P.C. Thenhaus, C. M. Wentworth
1982, Open-File Report 82-742
Determination of ultimate carbonaceous BOD and the specific rate constant (K1)
J. K. Stamer, J. P. Bennett, Stuart W. McKenzie
1982, Open-File Report 82-645
Ultimate carbonaceous biochemical oxygen demand (BODu) and the specific rate constant (K1) at which the demand is exerted are important parameters in designing biological wastewater treatment plants and in assessing the impact of wastewater on receiving streams. An analytical method is presented which uses time-series concentrations of BOD, defined as...
X-ray diffraction mineral identification charts for use in studies of uranium, thorium, and rare-earth deposits
M.H. Staatz, I. K. Brownfield
1982, Open-File Report 82-280
Preliminary report on the geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona
Ted G. Theodore, Will N. Blair, J. Thomas Nash, Edwin H. McKee
1982, Open-File Report 82-1052
The Gold Basin-Lost Basin mining districts are adjacent to each other in northwestern Arizona, south of Lake Mead, and just west of the Grand Wash Cliffs. Most recorded production from lode deposits is credited to mines in the Gold Basin district, which is in the southern White Hills, whereas the...
Reconnaissance of the quality of surface water in the Weber River basin, Utah
Kendall R. Thompson
1982, Open-File Report 82-175
Palynology of the Lower Cretaceous Pebble Shale Unit, Point Barrow, Alaska
T.A. Timmcke
1982, Open-File Report 81-1304
Review of the Denver Water Department induced seismicity program at Strontia Springs, Colorado
William Spence
1982, Open-File Report 82-64
Geologic map of the Tule Springs Quadrangle, San Diego County, California
V. R. Todd
1982, Open-File Report 82-221
Interpretation of an aeromagnetic survey of parts of Shannon, Carter, Oregon, and Ripley counties in southeastern Missouri
Allan Spector, Gerda Abrams
1982, Open-File Report 82-832
Geohydrologic descriptions of selected solid waste disposal sites in Puerto Rico
Arturo Torres-Gonzalez, Fernando Gómez-Gómez
1982, Open-File Report 81-490
Fifty solid-waste disposal sites in Puerto Rico were examined in 1977 and ranked according to their potential for degradation of the water resources. Twenty-five of the sites show significant leachate pollution potential. The cover material at 21 sites is relatively permeable and offers insignificant attenuation to leachates. Thirty-six sites are...
January 1982 water levels, and data related to water-level changes, western and south-central Kansas
M.E. Pabst
1982, Open-File Report 82-649
Water-level measurements were made, mostly in January 1982, in about 1,530 wells in western and south-central Kansas. The measurements were made in mid-winter when pumping was minimal and water levels had recovered, for the most part, from the effects of pumping during the previous irrigation season. Annual hydrologic data are...
Performance assessments for radioactive waste repositories; the rate of movement of faults
Newell J. Trask
1982, Open-File Report 82-972
Performance assessments of mined repositories for radioactive waste require estimates of the likelihood of fault movements and earthquakes that may affect the repository and its surrounding ground water flow system. Some previous assessments have attempted to estimate the rate of formation of new faults; some have relied heavily on historic...
Digital data base application to porphyry copper mineralization in Alaska; case study summary
Charles M. Trautwein, David D. Greenlee, Donald G. Orr
1982, Open-File Report 82-801
The purpose of this report is to summarize the progress in use of digital image analysis techniques in developing a conceptual model for assessing porphyry copper mineral potential. The study area consists of approximately the southern one-half of the 1? by 3? Nabesna quadrangle in east-central Alaska. The digital geologic...
Water-quality assessment of the Merced River, California
Stephen K. Sorenson
1982, Open-File Report 82-450
The Merced River and its major tributaries have been subject of water-quality and water-quantity studies by local, State, and Federal agencies since before 1900. Data have been compiled and analyzed, and even though water-quality problems exist in the basin, the water generally is of good quality for most of the...
Borehole-gravity surveys in basin-fill deposits of central and southern Arizona
Patrick Tucci, J. W. Schmoker, S. L. Robbins
1982, Open-File Report 82-473
Use of a three-dimensional model for the analysis of the ground-water flow system in Parker Valley, Arizona and California
Patrick Tucci
1982, Open-File Report 82-1006
A three-dimensional, finite-difference model was used to simulate ground-water flow conditions in Parker Valley. The study evaluated present knowledge and concepts of the ground-water system and the ability of the model to represent the system. Modeling assumptions and generalized physical parameters that were used may have transfer value in the...
A geochemical survey using heavy mineral concentrates in the Mount Belknap caldera vicinity, Utah
R. E. Tucker, W. Roger Miller, J. M. Motooka
1982, Open-File Report 82-602
Geochemical surveys of the rocks, heavy-mineral concentrates, and surface and spring waters in the vicinity of the Mount Belknap caldera, Tushar Mountains, west-central Utah, were conducted during the summers of 1978 and 1979. Anomalous concentrations of mostly lithophile elements, particularly niobium, beryllium, lead, yttrium, tin, zinc, manganese, and molybdenum in...
Geochemical analyses of rock and stream-sediment samples from Bald Rock, Bucks Lake, Chips Creek, and Middle Fork Feather River Roadless Areas, Butte and Plumas Counties, California
M. L. Sorensen, Henry Pietropaoli, J.A. Peterson
1982, Open-File Report 82-776
No abstract available....
Research on uranium resource models, a progress report; Part V, LDIGIT, a computer program to digitize graphics data for spatial data analysis
Robert M. Turner, William A. Scott, Richard B. McCammon
1982, Open-File Report 82-843
Surface-water-quality data from selected sites in Washington affected by Mount St. Helens eruptions; March 27 - September 30, 1980
G. L. Turney, J.M. Klein
1982, Open-File Report 81-1007
The volcanic eruptions of Mount St. Helens have resulted in the collection of many forms of hydrologic data. Chemical data collected from March 27 to September 30, 1980, to document the effects of the various volcanic events (mudflows, pyroclastic flows, deposition of ash) on the quality of surface water at...
High-resolution seismic-reflection profiles collected over the Atlantic Upper Continental slope off New Jersey and Georges Bank
D.C. Twichell, N. G. Bailey
1982, Open-File Report 82-595
No abstract available....
Proceedings of the Second Joint Meeting of the U.S.-Japan Conference on Natural Resources (UJNR) Panel on Earthquake Prediction Technology, July 13-17, 1981
David P. Hill, Keiji Nishimura
1982, Open-File Report 82-180
The Second Joint Meeting of the UJNR Panel on Earthquake Prediction Technology was held at the U.S. Geological Survey facilities in Menlo Park, California, during the week of July 13, 1981. This panel, which was established in 1978, is the newest of 17 panels under the United States/Japan Cooperative Program...
Assessment of undiscovered conventionally recoverable petroleum resources of the Middle Caspian Basin, U.S.S.R.
G. F. Ulmishek, Wyman Harrison
1982, Open-File Report 82-296
