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Not all publications have extents, not all extents are completely accurate
Selected geologic information from drill holes in southeastern Iowa
Daniel J. Gockel
1979, Open-File Report 79-415
This report presents selected geologic information derived from wells in a 22-county area of southeastern Iowa. The information was extracted from the Automatic Data Processing (ADP) geologic file of the Iowa and U.S. Geological Surveys. The data presented include location, well identification number, and elevation of the well sites; depth and stratigraphic classification of...
Red Cedar River basin, Wisconsin: Low-flow characteristics
W.A. Gebert
1979, Water-Resources Investigations Report 79-29
Low-flow characteristics in the Red Cedar River basin, Wis., where surplus water may be diverted, and methods to determine low-flow characteristics at additional sites are presented. The low-flow characteristics were determined by various methods at 71 sites. For the three gaging stations in the basin, frequency analysis was used to...
Water resources of the Marquette Iron Range area, Marquette County, Michigan
N.G. Grannemann
1979, Open-File Report 79-1339
Dependable water supplies are vital to the mining industry in the Marquette Iron Range in Michigan. Development of processes that concentrate and pelletize low-grade iron ore has permitted mining to expand during the past two decades. Water demand has increased both for iron ore concentration processes and for the area...
Determination of selected anions in water by ion chromatography
Marvin J. Fishman, Grace Pyen
1979, Water-Resources Investigations Report 79-101
Ion chromatography is a rapid, sensitive, precise, and accurate method for the determination of major anions in rain water and surface waters. Simultaneous analyses of a single sample for bromide, chloride, fluoride, nitrate, nitrite, orthophosphate, and sulfate require approximately 20 minutes to obtain a chromatogram.Minimum detection limits range from 0.01...
Ground water in Myrtle Creek - Glendale area, Douglas County, Oregon
F. J. Frank
1979, Water-Resources Investigations Report 79-8
The Myrtle Creek-Glendale area covers about 400 mi2 (1,000 km2 in Douglas County in southwestern Oregon.  Although the geologic formations of the area have low permeabilities and generally yield small amounts of water to wells, ground water is the chief source of water for domestic usse in rural parts of the...
Water-table map of Waukesha County, Wisconsin
J. B. Gonthier
1979, Water-Resources Investigations Report 79-43
A map (scale 1:100,000) was prepared of the water table in Waukesha County in southeastern Wisconsin using water levels from more than 1,700 wells. The work was done as part of a cooperative project between the U.S. Geological Survey, the University of Wisconsin-Extension, Geological and Natural History Survey, and the...
Geology and porphyry copper-type alteration-mineralization of igneous rocks at the Christmas Mine, Gila County, Arizona
Randolph A. Koski
1979, Open-File Report 79-844
The Christmas copper deposit, located in southern Gila County, Arizona, is part of the major porphyry copper province of southwestern North America. Although Christmas is known for skarn deposits in Paleozoic carbonate rocks, ore-grade porphyry-type copper mineralization also occurs in a composite granodioritic intrusive complex and adjacent mafic volcanic country...
Origin of marcasite and its implications regarding the genesis of roll-front uranium deposits
Martin B. Goldhaber, Richard L. Reynolds
1979, Open-File Report 79-1696
Study of five roll-type uranium deposits (three in Texas and two in Wyoming) has resulted in the recognition of ore-stage marcasite in each deposit. Ore-stage marcasite is identified by its close association with uranium- and vanadium-bearing phases in the ore zones; by its close association with ferroselite at and near...
Steady-state dissolved oxygen model of the Willamette River, Oregon
Stuart W. McKenzie, W. G. Hines, D. A. Rickert, F. A. Rinella
1979, Circular 715-J
For nearly half a century the Willamette River in Oregon experienced severe dissolved-oxygen problems related to large loads of organically rich waste waters from industries and municipalities. Since the mid-1950 's dissolved oxygen quality has gradually improved owing to low-flow augmentation, the achievement of basinwide secondary treatment, and the use...
Hexavalent chromium in the ground and surface waters near Telluride, Colorado; preliminary data report
David B. Grove, Ronald L. Miller, Leonard F. Konikow, P. S. O’Boyle
1979, Open-File Report 79-700
Data showing results of 38 groundwater and 25 surface-water samples analyzed for hexavalent chromium are presented. Most samples were taken within the Telluride, Colo., city limits during October 1978. Twenty-four of the 38 groundwater samples (63%) contained more than 50 micrograms per liter of hexavalent chromium. Excluding the mill tailings...
Helium in soil-gas and helium/radon in ground water in the vicinity of a south Texas uranium roll-type deposit
G. Michael Reimer, C.G. Bowles, D.G. Murrey, J.M. Been
1979, Open-File Report 79-1625
A survey was run in the vicinity of a south Texas uranium roll-type deposit to determine the general concentration of helium in the soil gas and helium/radon ratios in the ground water for deposits of this nature. The helium in soil-gas concentrations are typical of the concentrations found associated with...