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Page 4874, results 121826 - 121850

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Reconnaissance samplings and characterization of aquatic humic substances at the Yuma Desalting Test Facility, Arizona
Ronald L. Malcolm, R.L. Wershaw, E.M. Thurman, G. R. Aiken, D.J. Pinckney, J. Kaakinen
1981, Water-Resources Investigations Report 81-42
Smectite clay minerals were found to be the principal compound on the surface of the cellulose-acetate, reverse-osmosis membranes at the Yuma Desalting Test Facility. These clay minerals were not present in the pumped ground water, but were blown into the conveyance canal from adjacent soils. Humic substances from the water...
Mineral resource potential of the Centennial Mountains Wilderness Study Area and contiguous areas, Idaho and Montana
I. J. Witkind, L.C. Huff, James Ridenour, M. D. Conyac, R.B. McCulloch
1981, Miscellaneous Field Studies Map 1342-B
The Centennial Mountains include parts of Beaverhead County, Montana, and Clark and Fremont Counties, Idaho; the mountains trend east, and the Continental Divide follows their crest (fig. 1). They form a massive, almost impassable barrier between Centennial Valley on the north and the broad expanse of the Snake River Plain...
Water resources data, New Mexico, water year 1980
Water Resources Division, U.S. Geological Survey
1981, Water Data Report NM-80-1
Water resources data for the 1980 water year for New Mexico consist of records of discharge and water quality of streams; stage, contents and water quality of lakes and reservoir s; and water levels and water quality in wells and springs. This report contains discharge records for 226 gaging stations;...
Single-channel seismic-reflection profiles and sidescan-sonar records collected on Georges Bank
David C. Twichell
1981, Open-File Report 81-438
Subbottom seismic-reflection, echo-sounding, and sidescan-sonar records were collected by the U.S. Geological Survey during two cruises over Georges Bank aboard the R/V OCEANUS (cruise 056, March 6-15, 1979 and cruise 067, August 6-13, 1979) (fig. 1). The data collected during these two cruises contributed to a study of bed-form types...
Potentiometric surface of the Floridan aquifer in the Suwannee River Water Management District, north Florida, May 1980
J.C. Rosenau, R.S. Milner
1981, Open-File Report 81-211
A May 1980 potentiometric surface map of the Suwannee River Water Management District area, Florida, depicts water levels in wells tapping the Floridan aquifer. Compared to the May 1976 potentiometric map of the area, there are no significant differences in the general appearance of the contours. Water levels, however, are...
Geologic map of the Beaver Creek Wilderness, McCreary County, Kentucky
Kenneth J. Englund, Nancy K. Teaford
1981, Miscellaneous Field Studies Map 1348-A
The Beaver Creek Wilderness comprises approximately 4,800 acres and is principally within the cliffline bordering the Beaver Creek drainage basin in McCreary County, southeastern Kentucky. It is part of the Beaver Creek Cooperative Wildlife management Area in the Daniel Boone National Forest, which is managed by the U.S. Forest Service...
Flow routing in the Susquehanna River Basin: Part IV - Routing reservoir releases in the eastern Susqehanna river basin in New York State
Thomas J. Zembrzuski Jr.
1981, Water-Resources Investigations Report 80-117
Flow-routing models for six reaches of major streams in the eastern Susquehanna River basin in New York were developed and used to trace releases of water from East Sidney Lake and Whitney Point Lake to gaged points downstream. Daily streamflow during 1942-77 was modeled for the following reaches: Susquehanna River--Unadilla...
Aerial radiometric and magnetic surveys, Snowy Range Wilderness Study Area and contiguous area, southeastern Wyoming
Joseph S. Duval, James A. Pitkin
1981, Miscellaneous Field Studies Map 1366-A
The Wilderness Act (Public Law 88-577, Sept. 3, 1964) and related acts require the U.S. Geological Survey and the U.S. Bureau of Mines to survey certain areas on Federal lands to determine their mineral resource potential.  Results must be made available to the public and be submitted to the Administration...
Evaluation of major dike-impounded ground-water reservoirs, Island of Oahu, with a section on flow hydraulics in dike tunnels in Hawaii
Kiyoshi J. Takasaki, John F. Mink
1981, Open-File Report 81-1119
Ground-water reservoirs impounded by volcanic dikes receive a substantial part of the total recharge to ground water on the island of Oahu because they generally underlie the rainiest areas. They accumulate the infiltration from rainfall, store it temporarily, and steadily leak it to abutting basal reservoirs or to streams cutting...
Erodibility of selected soils and estimates of sediment yields in the San Juan Basin, New Mexico
Rebecca M. Summer
1981, Water-Resources Investigations Report 81-44
Onsite rainfall-simulation experiments were conducted to derive field-erodibility indexes for rangeland soils and soils disturbed by mining in coal fields of northwestern New Mexico. Mean indexes on rangeland soils range from 0 grams (of detached soil) on dune soil to 121 grams on wash-transport zones. Mean field-erodibility-index values of soils...