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Page 4602, results 115026 - 115050

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Publication Extents

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Geology and hydrothermal alteration at the Madh adh Dhahab epithermal precious-metal deposit, Kingdom of Saudi Arabia
J. L. Doebrich, J.P. LeAnderson
1984, Open-File Report 84-640
Mahd adh Dhahab is a late Precambrian epithermal gold-silver-base metal deposit located in the west-central part of the Arabian Shield. North-trending quartz veins containing base and precious metals cut an east-striking, north-dipping homoclinal sequence of volcanic, volcaniclastic, and epiclastic rocks of intermediate to felsic composition. Ore was localized where the...
Water-quality data for the Potomac-Raritan-Magothy aquifer system in southwestern New Jersey, 1923-83
T. V. Fusillo, J. J. Hochreiter, D. G. Lord
1984, Open-File Report 84-737
Water-quality data for wells in and near the outcrop area of the Potomac-Raritan-Magothy aquifer system in Mercer, Burlington, Camden, Gloucester, and Salem Counties, New Jersey, have been compiled for the period 1923-83. The data were collected during various U.S. Geological Survey projects, including county-wide ground-water studies, the New Jersey saltwater-intrusion...
Chemical analyses of elutriates, native water, and bottom material from the Chetco, Rogue, and Columbia rivers in western Oregon
Gregory J. Fuhrer
1984, Open-File Report 84-133
Chemical analyses of elutriates, bottom sediment, and water samples for selected metals, nutrients and organic compounds including insecticides, herbicides, and acid/neutral extractables have been made to provide data to determine short-term water-quality conditions associated with dredging operations in rivers and estuaries. Between April and August 1982, data were collected from...
Sewage plume in a sand and gravel aquifer, Cape Cod, Massachusetts
Denis R. LeBlanc
1984, Water Supply Paper 2218
Secondarily treated domestic sewage has been disposed of on surface sand beds at the sewage treatment facility at Otis Air Force Base, Massachusetts, since 1936. Infiltration of the sewage through the sand beds into the underlying unconfined sand and gravel aquifer has resulted in a plume of sewage-contaminated ground water...
Ground-water monitoring at Santa Barbara, California: Phase 2 — Effects of pumping on water levels and on water quality in the Santa Barbara ground-water basin
Peter Martin
1984, Water Supply Paper 2197
From July 1978 to January 1980, water levels in the southern part of the Santa Barbara ground-water basin declined more than 100 feet. These water-level declines resulted from increases in municipal pumping since July 1978. The increase in municipal pumping was part of a basin-testing program designed to determine the...