The New Madrid earthquakes: An engineering-geologic interpretation of relict liquefaction features
Stephen F. Obermeier
1989, Professional Paper 1336-B
Earthquake-induced sand blows and sand-filled fissures are present in a belt 40 to 60 km. wide that extends from near Charleston, Mo., southward to about 20 km. south of Marked Tree, Ark. This region of earthquake-induced sand blows and other liquefaction-related features is almost exclusively in the St. Francis Basin,...
Geochemistry of the Cambrian-Ordovician aquifer system in the northern Midwest, United States: D in Regional aquifer-system analysis
D. I. Siegel
1989, Professional Paper 1405-D
Distributions of solutes in aquifers of Cambrian and Ordovician age were studied in Minnesota, Wisconsin, Iowa, Illinois, northwestern Indiana, and northern Missouri to determine the sources of solutes and the probable chemical mechanisms that control regional variations in water quality. This work is part of the Northern Midwest Regional Aquifer-System...
Geohydrology, simulation of ground-water flow, and ground-water quality at two landfills, Marion County, Indiana
R.F. Duwelius, T. K. Greeman
1989, Water-Resources Investigations Report 89-4100
Geologic, hydrologic, and water-quality data were collected at the Julietta and Tibbs-Banta landfills in Marion County. Both landfills were closed in the mid-1970's, and sewage sludge mixed with dirt was spread on the landfills in the mid-1980's as part of a revegetation project. The landfills were constructed in unconsolidated glacial sediments...
Hydraulic characteristics of the New River in the New River Gorge National River, West Virginia
J.B. Wiley, David H. Appel
1989, Open-File Report 89-243
Traveltime, dispersion, water-surface and streambed profiles, and cross-section data were collected for use in application of flow and solute-transport models to the New River in the New River Gorge National River, West Virginia. Dye clouds subjected to increasing and decreasing flow rates (unsteady flow) showed that increasing flows shorten the...
Conversion and comparison of the mathematical, three-dimensional, finite-difference, ground-water flow model to the modular, three-dimensional, finite-difference, ground-water flow model for the Tesuque aquifer system in northern New Mexico
A.M. Umari, T.L. Szeliga
1989, Open-File Report 89-26
The three-dimensional finite-difference groundwater model (using a mathematical groundwater flow code) of the Tesuque aquifer system in northern New Mexico was converted to run using the U.S. Geological Survey 's modular groundwater flow code. Results from the final versions of the predevelopment and 1947 to 2080 transient simulations of the...
Dissolved-solids data for the James River salinity model, North Dakota and South Dakota
L. I. Briel
1989, Open-File Report 89-43
Operation of the Garrison Diversion Unit in North Dakota will divert water from the Missouri River into the James River basin and thereby augment flows in the James River sufficiently to permit expanded irrigation and to provide new water supplies for municipal and industrial use. Salinity of water in the...
Principal facts, gravity profile, and interpreted geologic model for 128 gravity stations along a portion of a COCORP seismic profile on the Millett 1 by 2 degree Quadrangle, Nevada
B. A. Chuchel, V.E. Langenheim, R. W. Saltus, D.B. Snyder, H. W. Oliver, C.M. Comfort
1989, Open-File Report 89-664
Hydrogeology, ground-water movement, and subsurface storage in the Floridan aquifer system in southern Florida
Frederick W. Meyer
1989, Professional Paper 1403-G
The Floridan aquifer system of southern Florida is composed chiefly of carbonate rocks that range in age from early Miocene to Paleocene. The top of the aquifer system in southern Florida generally is at depths ranging from 500 to 1,000 feet, and the average thickness is about 3,000 feet. It...
TURBOSEIS : an interactive program for constructing and editing models of seismic refraction traveltime data using a color-graphics terminal, Part B
Bruce A. Chuchel
1989, Open-File Report 89-567-B
Gold in placer deposits
Warren Yeend, Daniel R. Shawe, Kenneth L. Wier
1989, Bulletin 1857-G
Man most likely first obtained gold from placer deposits, more than 6,000 years ago. Placers account for more than two-thirds of the total world gold supply, and roughly half of that mined in the States of California, Alaska, Montana, and Idaho.Placer deposits result from weathering and release of gold from...
Sources of coal-mine drainage and their effects on surface-water chemistry in the Claybank Creek basin and vicinity, north-central Missouri, 1983-84
Dale W. Blevins
1989, Water Supply Paper 2305
Eighteen sources of drainage related to past coal-mining activity were identified in the Claybank Creek, Missouri, study area, and eight of them were considered large enough to have detectable effects on receiving streams. However, only three sources (two coal-waste sites and one spring draining an underground mine) significantly affected the...
Hydrogeochemical survey of groundwater for selected areas in the Arabian Shield and in cover rocks, Kingdom of Saudi Arabia
John B. McHugh, W. Roger Miller
1989, Open-File Report 89-334
In the spring of 1984, a hydrogeochemical survey was conducted in the Kingdom of Saudi Arabia to test ground water as a sampling medium in exploration for mineral deposits. Eighty-one water samples (mostly from wells) were collected. The samples were analysed for the presence and concentration of major cations and...
Software listing for the setup and calibration of the EG&G model 630 vector measuring current meter
G.K. Miller
1989, Open-File Report 89-533
Hydrology of the Oakley Fan Area, south-central Idaho
H.W. Young, G. D. Newton
1989, Water-Resources Investigations Report 88-4065
The Oakley Fan area is a broad, crescent-shaped lowland along the southern margin of the Snake River Plain in south-central Idaho. Intensive groundwater development for irrigation has resulted in rapid water-level declines and, as a consequence, designation by the State of four Critical Groundwater Areas. Principal aquifers are in limestone,...
Direct-current vertical electrical-resistivity soundings in the Lower Peninsula of Michigan
D.B. Westjohn, P.J. Carter
1989, Open-File Report 89-244
Ninety-three direct-current vertical electrical-resistivity soundings were conducted in the Lower Peninsula of Michigan from June through October 1987. These soundings were made to assist in mapping the depth to brine in areas where borehole resistivity logs and water-quality data are sparse or lacking. The Schlumberger array for placement of current...
Variable-density ground-water flow and paleohydrology in the Waste Isolation Pilot Plant (WIPP) region, southeastern New Mexico
P. B. Davies
1989, Open-File Report 88-490
Variable-density groundwater flow was studied near the Waste Isolation Pilot Plant in southeastern New Mexico. An analysis of the relative magnitude of pressure-related and density-related flow-driving forces indicates that density-related gravity effects are not significant at the plant and to the west but are significant in areas to the north,...
Simulation analysis of the ground-water system in Mesozoic rocks in the Four Corners area, Utah, Colorado, Arizona, and New Mexico
B. E. Thomas
1989, Water-Resources Investigations Report 88-4086
The steady-state groundwater system in Mesozoic rocks in the Four Corners area, Utah, Colorado, Arizona, and New Mexico, was simulated with a finite-difference digital-computer model to improve the understanding of the system. The simulated area is 4 ,100 sq mi, and it includes three aquifers. The Entrada-Navajo aquifer includes the...
Evaluation of methodology for delineation of protection zones around public-supply wells in west-central Florida
John Vecchioli, J. D. Hunn, W. R. Aucott
1989, Water-Resources Investigations Report 88-4051
Public-supply wells in the west-central Florida area of Citrus, Hernando, Pasco, Hillsborough, and Pinellas Counties derive their supply solely from the Floridan aquifer system. In much of this area, the Floridan is at or near land surface and vulnerable to contamination. Recognizing this potential threat to the aquifer, the Florida...
Measurement of reaeration coefficients for selected Florida streams
P. S. Hampson, J.E. Coffin
1989, Water-Resources Investigations Report 87-4020
A total of 29 separate reaeration coefficient determinations were performed on 27 subreaches of 12 selected Florida streams between October 1981 and May 1985. Measurements performed prior to June 1984 were made using the peak and area methods with ethylene and propane as the tracer gases. Later measurements utilized the...
Cost-effectiveness of the stream-gaging program in Kentucky
K.J. Ruhl
1989, Water-Resources Investigations Report 89-4067
This report documents the results of a study of the cost-effectiveness of the stream-gaging program in Kentucky. The total surface-water program includes 97 daily-discharge stations , 12 stage-only stations, and 35 crest-stage stations and is operated on a budget of $950,700. One station used for research lacks adequate source of...
A direct method for calculating instrument noise levels in side-by-side seismometer evaluations
L. Gary Holcomb
1989, Open-File Report 89-214
The subject of determining the inherent system noise levels present in modem broadband closed loop seismic sensors has been an evolving topic ever since closed loop systems became available. Closed loop systems are unique in that the system noise can not be determined via a blocked mass test as in...
Procedure for evaluating observation-well networks in Wyoming, and application to northeastern Wyoming, 1986
J.C. Wallace, M. A. Crist
1989, Water-Resources Investigations Report 88-4215
A sequence of steps was developed for evaluating and modifying the existing, long-term, observation-well network in any part of Wyoming. The State was subdivided geographically into nine groundwater areas, including the northeastern Wyoming groundwater area, based on major structural features. Northeastern Wyoming was the first of the nine areas to...
Simulation of ground-water flow at Anchorage, Alaska, 1955-83
Leslie Patrick, T. P. Brabets, R. L. Glass
1989, Water-Resources Investigations Report 88-4139
The groundwater system at Anchorage, Alaska was analyzed by using a two-layer three-dimensional mathematical model. By use of existing data, both nonpumping and pumping steady-state conditions and transient conditions were simulated. Under steady-state conditions, calculated directions of groundwater flow were similar to observed flow patterns, and calculated stream discharges generally...
Traveltime and reaeration of selected streams in the North Platte and Yampa River basins, Colorado
B. C. Ruddy, L. J. Britton
1989, Water-Resources Investigations Report 88-4205
Traveltime characteristics were measured using rhodamine WT dye as a tracer in the Canadian and Michigan Rivers in the North Platte river basin and in the Yampa, Elk, and Williams Fork Rivers, and Trout and Fish Creeks in the Yampa River basin of Colorado. Reaeration coefficients were determined by use...
Peak-flow characteristics of small urban drainages along the Wasatch Front, Utah
K.L. Lindskov, K. R. Thompson
1989, Water-Resources Investigations Report 89-4095
Designers and planners for local, State, and Federal agencies need up-to- date methods for determining peak-flow characteristics for urban drainages along the Wasatch Front, Utah. This report summarizes methods used to develop equations that estimate peak-flows for small urban drainages along the Wasatch Front. Mathematical equations were developed that estimate...
