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Page 4873, results 121801 - 121825

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Metallogenic map of volcanogenic massive-sulfide occurrences in New Mexico
J. M. Robertson, M.S. Fulp, M.D. Daggett
1986, Miscellaneous Field Studies Map 1853-A
New Mexico volcanogenic massive-sulfide occurrences, which typically contain pyrite and pyrrhotite accompanied by variable amounts of base-metal sulfides and precious metals, are found within mainly subaqueous, compositionally bimodal metavolcanic successions of Early to Middle Proterozoic age that are exposed primarily in the north-central part of the state. Host rocks include...
Geologic map of southern Prince of Wales Island, southeastern Alaska
George E. Gehrels, Jason B. Saleeby
1986, Open-File Report 86-275
Southern Prince of Wales Island is underlain by stratified, intrusive, and metamorphic rocks of Cretaceous through pre-Middle Ordovician age and by surficial deposits. The region was mapped originally in reconnaissance fashion by Buddington and Chapin (1929) and subsequently by W.H. Condon and I.L. Tailleur (unpublished U.S.G.S. report, 1960) primarily with...
Distribution and mobility of selenium and other trace elements in shallow ground water of the western San Joaquin Valley, California
S. J. Deverel, S.P. Millard
1986, Open-File Report 86-538
Samples of shallow ground water that underlies much of the irrigated area in the western San Joaquin Valley of California were analyzed for various major ions and trace elements, including selenium. Concentrations of the major ions generally were similar for ground water collected in the two primary geologic zones--the alluvial...
Water quality of Rhode Island streams
J. C. Briggs, J.S. Feiffer
1986, Water-Resources Investigations Report 84-4367
Water quality data collected from November 1979 through September 1983 at five stream stations within Rhode Island and one in Massachusetts show that concentrations of the common constituents were low. Mean water hardness at all sites was in the ' soft ' category. Sodium concentrations were less than 20 mg/L...
Water resources activities in Illinois, 1985
M. L. Garrelts
1986, Open-File Report 86-130
This report gives an overview of U.S. Geological Survey, Illinois District, Water Resources Division activities related to the water resources of the State of Illinois. The report includes sections describing District organization, programs, water conditions, data collection activities, and project summaries. Also included is a complete listing of District and...
Hydrogeologic data for the Dakota aquifer system in Nebraska
M. J. Ellis
1986, Open-File Report 86-526
Data utilized in preparing an interpretive hydrogeologic report on the Dakota aquifer system in Nebraska are summarized. The study area is a 370,000 sq mi area that includes all of Kansas and Nebraska and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, and Texas. The broad objective for each Regional...
Ground-water levels and use of water for irrigation in the Saratoga Valley, south-central Wyoming, 1980-81
L. W. Lenfest
1986, Water-Resources Investigations Report 84-4040
Although surface water is the principal source of irrigation water in the Saratoga Valley, Wyoming, development of groundwater for irrigation is increasing. Most of the 30 irrigation wells in the valley are capable of producing more than 200 gallons per minute. Approximately 2,700 acre-feet of groundwater for irrigation were pumped...
Preliminary evaluation of the Knox Group in Tennessee for receiving injected wastes
M. W. Bradley
1986, Water-Resources Investigations Report 85-4304
The EPA is authorized under the Safe Drinking Water Act to protect underground sources of drinking water from contamination. However, an aquifer may be exempted from protection and used for injected wastes where the aquifer meets criteria established in the EPA 's Underground Injection Control program. The Knox Group in...
Preliminary evaluation of the Highland Rim aquifer system in Tennessee for receiving injected wastes
M. W. Bradley
1986, Water-Resources Investigations Report 85-4252
The EPA has authority under the Safe Drinking Water Act to protect underground sources of drinking water from contamination by deep well injection. An aquifer, however, may be exempted from protection and used for injected wastes where the aquifer meets criteria established in the Agency 's Underground Injection Control program....