Mineral resource potential map of the Carson-Iceberg Roadless Areas, central Sierra Nevada, California
William J. Keith, Maurice A. Chaffee, Donald Plouff, Michael S. Miller
1983, Miscellaneous Field Studies Map 1416-B
No abstract available....
Historical changes to Lake Washington and route of the Lake Washington Ship Canal, King County, Washington
Michael J. Chrzastowski
1983, Water-Resources Investigations Report 81-1182
Lake Washington, in the midst of the greater Seattle metropolitan area of the Puget Sound region (fig. 1), is an exceptional commercial, recreational, and esthetic resource for the region . In the past 130 years, Lake Washington has been changed from a " wild " lake in a wilderness setting...
Geologic map of the Mitten Lake, Half Dome Crag, Hyde Creek, East Glacier Park, Big Rock, and Magee Range quadrangles, Pondera and Glacier Counties, Montana
Melville Rhodes Mudge, R.L. Earhart, W. J. Perry Jr., R. G. Bohannon
1983, Open-File Report 82-1030
No abstract available....
Impact of changes in land use on the ground-water system in the Sequim-Dungeness Peninsula, Clallam County, Washington
B. W. Drost
1983, Water-Resources Investigations Report 83-4094
A digital-computer model was developed to simulate three-dimensional ground-water flow in aquifers underlying the Sequim-Dungeness peninsula, Clallam County, Washington. Analysis using the model shows that leakage from irrigation ditches is the area 's most important source of ground-water recharge. Termination of the irrigation system would lead to lower heads throughout...
Measurement of the reaeration coefficients of the North Fork Licking River at Utica, Ohio by radioactive tracers
Janet Hren
1983, Water-Resources Investigations Report 83-4192
Reaeration coefficients of the North Fork Licking River at Utica, Ohio were measured by the radioactive-tracer method. The tests were conducted on a 2.1-mile reach on September 23 and October 7, 1981, during low-flow conditions. Krypton-85 gas and tritium were the radioopactive tracers, which were used in conjunction with rhodamine-WT...
A method for estimating ground-water return flow to the lower Colorado River in the Yuma area, Arizona and California
Omar J. Loeltz, S. A. Leake
1983, Water-Resources Investigations Report 83-4220
No abstract available....
Ground water in the northeast part of Twentynine Palms Marine Corps Base, Bagdad area, California
J. H. Koehler
1983, Water-Resources Investigations Report 83-4053
The hydrologic characteristics of the Bagdad area, in the northeast part of Twentynine Palms Marine Corps Base, were investigated to determine the feasibility of obtaining a supply of ground water. Five test holes were drilled and three of these were completed with 6-inch casings. Ground water in the eastern part...
Land application of wastewater and its effect on ground-water quality in the Livermore-Amador Valley, Alameda County, California
M. A. Sylvester
1983, Water-Resources Investigations Report 82-4100
Ground-water quality, ground-water level, and rainfall data collected during the 1975 water year through the 1980 water year were analyzed to determine the effects of land application of effluent from wastewater treatment plants on ground-water quality in the Livermore-Amador Valley. Annual rainfall varied markedly during the study: 1976 and 1977...
Hydrogeologic and water-quality characteristics of the Prairie du Chien-Jordan aquifer, Southeast Minnesota
J. F. Ruhl, R. J. Wolf, D. G. Adolphson
1983, Water-Resources Investigations Report 83-4045
Quality of water in the Prairie du Chien-Jordan aquifer is generally good, except for some localized contamination, Coal-tar derivatives that contaminate the aquifer in St. Louis Park, a western suburb in the Twin Cities Metropolitan Area, pose the most serious threat to water quality. High hardness and iron concentration limit...
Mineral discrimination using a portable ratio-determining radiometer
G. Whitney, M. J. Abrams, Alexander F.H. Goetz
1983, Economic Geology (78) 688-698
The instrument has ten bands in the visible and near-infrared portion of the spectrum (0.5-2.4 mu m). Measurements and statistical analyses were performed on 66 samples, which were characterized by microscopic and X-ray diffraction analyses. On the ability to discriminate between 16 mineralogical groups, 91 percent classification accuracy was achieved....
Preliminary analysis of shuttle multispectral radiometer data for Southern Egypt
L. C. Rowan, Alexander F.H. Goetz, M.J. Kingston
1983, Advances in Space Research (3) 125-132
The Shuttle Multispectral Infrared Radiometer (SMIRR) is a spectroradiometer covering the region from 0.5 to 2.5 ??m in 10 channels that acquired data from spots 100 m in diameter along the subspacecraft ground track. It was flown aboard the second flight of the space shuttle Columbia, November 12-14, 1981. Data...
Petrology and comparative thermal and mechanical histories of clasts in breccia 62236
Gordon L. Nord Jr., M.-V. Wandless
1983, Journal of Geophysical Research Solid Earth (88) A645-A657
Lunar breccia 62236 contains large lithic fragments of troctolite, norite, and anorthosite. The mafic phases, olivine, inverted pigeonite, and augite, fill interstitial areas between larger plagioclases and appear to be cumulate phases with extensive adcumulus growth. Pyroxene compositional homogeneity indicates that cation exchange during cooling was limited to an area...
Triggered reverse fault and earthquake due to crustal unloading, northwest Transverse Ranges, California
R. F. Yerkes, W.L. Ellsworth, J. C. Tinsley
1983, Geology (11) 287-291
A reverse-right-oblique surface rupture, associated with a ML 2.5 earthquake, formed in a diatomite quarry near Lompoc, California, in the northwesternmost Transverse Ranges on April 7, 1981. The 575-m-long narrow zone of ruptures formed in clay interbeds in diatomite and diatomaceous shale of the...
Site 534: Blake-Bahama Basin
Shipboard Scientific Party
1983, Book chapter, Initial reports of the deep sea drilling project
No abstract available....
Crustal structure beneath the southern Appalachians: Nonuniqueness of gravity modeling
Deborah R. Hutchinson, John A. Grow, Kim D. Klitgord
1983, Geology (11) 611-615
Gravity models computed for a profile across the long-wavelength paired negative-positive Bouguer anomalies of the southern Appalachian Mountains show that the large negative anomaly can be explained by a crustal root zone, whereas the steep gradient and positive anomaly east of the root may be explained equally well by three...
Response: Uranium series ages of the Del Mar Man and Sunnyvale skeletons
James L. Bischoff, Robert J. Rosenbauer
1983, Science (217) 576
No abstract available....
A Canada goose project in Connecticut
Kathryn A. Converse
1983, The Connecticut Warbler (1) 36-38
It wasn't so long ago that the wild cries of Canada geese overhead were enough to draw most people out of their homes to look skyward. It was a rare sound heard only in the spring and fall when migrating flocks of these magnificent birds marked the change of the...
Effects of land use on ground-water quality in the East Everglades, Dade County, Florida
B.G. Waller
1982, Water-Resources Investigations Report 82-4093
Groundwater quality characteristics of the Biscayne aquifer from September 1978 through June 1979 were determined for seven land use areas within the East Everglades in Dade County, Florida. Four agricultural areas, two low-density residential areas, and Chekika Hammock State Park were investigated. The effects of land use on the groundwater...
Assessment of water quality in canals of eastern Broward County, Florida, 1969-74
Bradley G. Waller, Wesley L. Miller
1982, Water-Resources Investigations Report 82-3
An intensive water-quality monitoring program was started in 1969 to determine the effects of man-induced contaminants on the water quality in the primary canal system of eastern Broward County, Florida. This report covers the first 6 years of the program and provides a data base that can be used to...
Areal extent of a plume of mineralized water from a flowing artesian well in Dade County, Florida
Bradley G. Waller
1982, Water-Resources Investigations Report 82-20
A flowing artesian well that taps the Floridan aquifer at Chekika Hammock State Park is contaminating the overlying Biscayne aquifer with saline water. The plume of mineralized water extends approximately 7 miles southeast of the well and ranges in width from 1 to 2 miles. The areal extent of contamination...
Effects of land use on surface-water quality in the East Everglades, Dade County, Florida
Bradley G. Waller
1982, Water-Resources Investigations Report 81-59
Water-quality characteristics were determined at five developed areas in the East Everglades, Dade County, Florida, during the 1978 wet season (June through October). These areas are designated as: Coopertown; Chekika Hammock State Park; residential area; rock-plowed tomato field; and Cracker Jack Slough agricultural area. Data from the developed areas were...
Water resources data for Maryland and Delaware, water year 1981
Water Resources Division, U.S. Geological Survey
1982, Water Data Report MD-DE-81-1
No abstract available....
Measurement and computation of streamflow
Saul Edward Rantz
1982, Water Supply Paper 2175
The purpose of this manual is to provide a comprehensive description of state-of-the-art standardized stream-gaging procedures, within the scope described below. The manual is intended for use as a training guide and reference text, primarily for hydraulic engineers and technicians in the U.S. Geological Survey, but the manual is also...
Preliminary results of potassium-argon age determinations from the Ugashik quadrangle, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
Frederic H. Wilson, Nora B. Shew
1982, Circular 844
Early and preliminary results of potassiumargon dating work on samples from 12 sites in the Ugashik quadrangle indicate a continuation of the geologic trends seen in the Chignik and Sutwik Island quadrangles to the south (Wilson, 1980). Tertiary volcanic and hypabyssal rocks apparently fall into two age groups: early Tertiary-late...
Radiometric age file for Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
Nora B. Shew, Frederic H. Wilson
1982, Circular 844
The Alaska radiometric age file of the Branch of Alaskan Geology is a computer-based compilation of radiometric dates from the state of Alaska and the western parts of the Yukon Territory and British Columbia. More than 1800 age determinations from over 250 references have been entered in the file. References...
