A modular three-dimensional finite-difference ground-water flow model
M.G. McDonald, A.W. Harbaugh
1984, Open-File Report 83-875
This report presents a finite-difference model and its associated modular computer program. The model simulates flow in three dimensions. The report includes detailed explanations of physical and mathematical concepts on which the model is based and an explanation of how those concepts were incorporated in the modular structure of the...
Characteristics of some silver-, and base metal-bearing, epithermal deposits of Mexico and Peru
Nora K. Foley
1984, Open-File Report 84-633
Introduction Lithotectonic, mineralogical, and geochemical data on two silver- and base metal-bearing deposits from Peru and two from Mexico are compiled to facilitate comparisons with other epithermal deposits. Silver and base metal-bearing deposits of Mexico and Peru constitute an important portion of the world silver production derived from shallow, vein-type deposits...
Preliminary modeling of an aquifer thermal-energy storage system
R. T. Miller
1984, Open-File Report 84-811
No abstract available....
Stream-channel response to the January 3-5, 1982 storm in the Santa Cruz Mountains, west central California
K.M. Nolan, D. C. Marron, L.M. Collins
1984, Open-File Report 84-248
Intense rainfall on January 3-5, 1982 in the Santa Cruz Mountains, California caused high streamflow and widespread landsliding. Generalized channel response in the studied basins included scour in steep, low-order channels and moderate fill in higher order channels. Large volumes of channel fill were noted along some channels but this...
Compilation of data collected and derived for water years 1980 and 1981 for the purpose of water-quality modeling of the lower Ouachita River and selected tributaries, south-central Arkansas
J. C. Petersen, E. E. Morris
1984, Open-File Report 84-727
This report represents water-quality, sediment oxygen demand, phytoplankton, periphyton, bacteria, instantaneous and mean-daily discharge, stream geometry, time of travel, reaeration data and other water quality collected on the lower Ouachita River (from just upstream of Little Missouri River to Lock and Dam 6), West Two Bayou, Smackover Creek, Haynes Creek...
Hydrology, geomorphology, and dam-break modeling of the July 15, 1982, Lawn Lake Dam and Cascade Lake Dam failures, Larimer County, Colorado
R.D. Jarrett, J. E. Costa
1984, Open-File Report 84-612
On July 15, 1982, Lawn Lake Dam, a 26-foot-high earthfill irrigation dam built in 1903 in Rocky Mountain National Park, Colorado, failed, due to piping, releasing 674 acre-feet of water with a peak discharge of 18,000 cubic feet per second down the Roaring River. Three people were killed, and damages...
Estimation of the sensitivity of CSEM coupling to coil movement and resistivity changes of simple models
Jim Kauahikaua
1984, Open-File Report 84-645
Geohydrology, aqueous geochemistry, and thermal regime of the Soda Lakes and Upsal Hogback geothermal systems, Churchill County, Nevada
F. H. Olmsted, A. H. Welch, A. S. Van Denburgh, S. E. Ingebritsen
1984, Water-Resources Investigations Report 84-4054
A flow-routing model of the upper Schoharie Creek basin, New York, was developed and used to simulate high flows at the inlet of the Blenheim-Gilboa Reservoir. The flows from Schoharie Creek at Prattsville, the primary source of flow data in the basin, and tributary flows from the six minor basins...
Earth and water resources and hazards in Central America
Charles G. Cunningham, R.W. Fary, Marianne Guffanti, Della Laura, M. P. Lee, C.D. Masters, R. L. Miller, Ferdinand Quinones-Marquez, R.W. Peebles, J.A. Reinemund, D. P. Russ
1984, Circular 925
Long-range economic development in Central America will depend in large part on production of indigenous mineral, energy, and water resources and on mitigation of the disastrous effects of geologic and hydrologic hazards such as landslides, earthquakes, volcanic eruptions, and floods. The region has six world-class metal mines at present as...
The 1980 Polallie Creek debris flow and subsequent dam-break flood, East Fork Hood River basin, Oregon
Gary L. Gallino, Thomas C. Pierson
1984, Open-File Report 84-578
At approximately 9 p.m. on December 25, 1980, intense rainfall and extremely wet antecedent conditions combined to trigger a landslide of approximately 5,000 cubic yards at the head of Polallie Creek Canyon on the northeast flank of Mount Hood. The landslide was transformed rapidly into a debris flow, which surged...
Developing an oil generation model for resource assessment of the Bakken Formation, U.S. portion of the Williston Basin
K. B. Krystinik, Ronald R. Charpentier
1984, Open-File Report 84-694
No abstract available....
Glacial aquifer systems in the northeastern United States; a plan for study
F. P. Lyford, J.E. Dysart, A. D. Randall, A.L. Kontis
1984, Open-File Report 83-928
The U.S. Geological Survey project designed to study the availability and quality of water in glacial aquifers in the States of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, and Ohio is scheduled for completion in 1986. It will focus on general principles that define...
Analytical results, geology, and sample locality map of mercury-sulfur-gypsum mineralization at Crater, Inyo County, California
M. S. Erickson, S.P. Marsh, T. A. Roemer
1984, Open-File Report 85-512
The Crater mercury-su l fur-gypsum ~ineral ized area is located in east-central California along the crest of the Last Chance Range, west of the north end of Death Valley (fig. 1). The area is in the northwest quarter of the Last Chance Range 15-minute quadrangle and occupies the area between...
Comparison of computer-based and manual coal resource estimation methods for the Cache coal bed, Recluse Geologic Model Area, Wyoming
Gary B. Schneider, Sharon S. Crowley, Mary Alice Carey
1984, Circular 917
Coal resources have been estimated, using both manual and computer methods, for the Cache coal bed in the Recluse Geologic Model Area, which covers the White Tail Butte, Pitch Draw, Recluse, and Homestead Draw SW 7?-minute quadrangles in Campbell County, Wyoming. Approximately 300 coal thickness measurements from drill-hole logs are...
Reconnaissance geology of the Al'Awshaziyah Quadrangle, sheet 26/41 B, Kingdom of Saudi Arabia
G. W. Leo
1984, Open-File Report 84-497
The Al 'Awshaziyah quadrangle (26/41 B) is located between lat 26°30' and 27°00 f N. and long 41°30' and 42°00' E. in the northeastern part of the Arabian Shield. The quadrangle contains surficial Quaternary deposits and locally exposed underlying upper Proterozoic intrusive, volcanic, and volcaniclastic rocks. The oldest rocks, gabbro and...
Use of the routing procedure to study dye and gas transport in the West Fork Trinity River, Texas
Harvey E. Jobson, R. E. Rathbun
1984, Water Supply Paper 2252
Rhodamine-WT dye, ethylene, and propane were injected at three sites along a 21.6-kilometer reach of the West Fork Trinity River below Fort Worth, Texas. Complete dye concentration versus time curves and peak gas concentrations were measured at three cross sections below each injection. The peak dye concentrations were located and...
Hydrologic data; North Canadian River from Lake Overholser to Lake Eufaula, central Oklahoma
J.S. Havens
1984, Open-File Report 84-808
The data contained in this report were gathered during the period 1982 to 1984 for use in constructing a digital model of the North Canadian River from Lake Overholser, in the western part of Oklahoma City, to Lake Eufaula, in eastern Oklahoma. Locations of test holes and sampling sites are...
Effects of urbanization on the magnitude and frequency of floods on small streams in Tennessee; basic data report No. 3
C. H. Robbins
1984, Open-File Report 84-242
Rainfall and discharge data collected at 21 urban hydrology sites in Tennessee from July 1977 to September 1983 are summarized. These rainfall-runoff data will be used to calibrate a U.S. Geological Survey Rainfall-Runoff Model. The results of the model calibrations will then be used to develop reliable methods for determining...
Acid precipitation; an annotated bibliography
Denise A. Wiltshire, Margaret L. Evans
1984, Circular 923
This collection of 1660 bibliographies references on the causes and environmental effects of acidic atmospheric deposition was compiled from computerized literature searches of earth-science and chemistry data bases. Categories of information are (1) atmospheric chemistry (gases and aerosols), (2) precipitation chemistry, (3) transport and deposition (wet and dry), (4) aquatic...
Ground-water resources of Rusk County, Texas
W.M. Sandeen
1984, Open-File Report 83-757
Fresh to slightly saline water is available in most parts of Rusk County, which is located in the Piney Woods region of northeast Texas. The Wilcox aquifer, which underlies the entire county, was the source of most of the ground water withdrawn during 1980. Other units capable of yielding fresh...
Analysis of alternative modifications for reducing backwater at the I-10 crossing of the Pearl River near Slidell, Louisiana
G.J. Wiche, J. J. Gilbert, D. C. Froehlich, J. K. Lee
1984, Open-File Report 84-443
No abstract available. ...
Runoff, sediment transport, and water quality in a northern Illinois agricultural watershed before urban development, 1979-81
H.E. Allen Jr., J. R. Gray
1984, Water-Resources Investigations Report 82-4073
A study designed to quantify and evaluate changes in runoff and sediment transport attributable to construction activities during urban development of a watershed required identification of pre-construction hydrologic conditions. Data collected before construction on a 2.81 sq m (7.28 sq km) agricultural watershed (upper Spring Creek) near Rockford, IL, show...
Investigations and research in Nevada by the Water Resources Division, U.S. Geological Survey, 1982
Terry Katzer, Otto Moosburner, W. D. Nichols
1984, Open-File Report 83-768
The Water Resources Division, U.S. Geological Survey, is charged with (1) maintaining a hydrologic network in Nevada that provides information on the status of the State 's water resources and (2) engaging in technical water-resources investigations that have a high degree of transferability. To meet these broad objectives, 26 projects...
The principle of superposition and its application in ground-water hydraulics
T. E. Reilly, O.L. Franke, G.D. Bennett
1984, Open-File Report 84-459
The principle of superposition, a powerful methematical technique for analyzing certain types of complex problems in many areas of science and technology, has important application in ground-water hydraulics and modeling of ground-water systems. The principle of superposition states that solutions to individual problems can be added together to obtain solutions...
Velocity profile, water-surface slope, and bed-material size for selected streams in Colorado
J.P. Marchand, R.D. Jarrett, L.L. Jones
1984, Open-File Report 84-733
Existing methods for determining the mean velocity in a vertical sampling section do not address the conditions present in high-gradient, shallow-depth streams common to mountainous regions such as Colorado. The report presents velocity-profile data that were collected for 11 streamflow-gaging stations in Colorado using both a standard Price type AA...
