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Publications

The following list of California Water Science Center publications includes both official USGS publications and journal articles authored by our scientists.

Filter Total Items: 1811

New tritium data on movement of groundwater in western Fresno County, California New tritium data on movement of groundwater in western Fresno County, California

Well waters along two traverse lines were sampled in 1963 and tested for tritium concentration. Haskell et al. [1966] estimated from the apparent thermonuclear tritium concentrations that groundwater had moved westward in the lower water‐bearing zone at a maximum velocity of 14–16.5 mi (23–27 km) in 9 yr. The maximum velocities and permeabilities estimated from the 1963 sampling were...
Authors
Joseph Fairfield Poland, Gordon L. Stewart

Location of the non-tidal current null zone in northern San Francisco Bay Location of the non-tidal current null zone in northern San Francisco Bay

Variations in Sacramento-San Joaquin River discharge into northern San Francisco Bay causes shifts in location of the bottom density current null zone. At a river flow of 2000 m3/s this null zone is approximately 20 km from the seaward end of the estuary, whereas at a river flow of 100 m3/s it is 80 km from the seaward end; the corresponding distances of salinity penetration are...
Authors
David H. Peterson, T. J. Conomos, W. W. Broenkow, Patrick C. Doherty

Descriptions and chemical analyses for selected wells in the Tehama-Colusa Canal Service Area, Sacramento Valley, California Descriptions and chemical analyses for selected wells in the Tehama-Colusa Canal Service Area, Sacramento Valley, California

The Tehama-Colusa Canal Service Area is in the northwestern part of the Sacramento Valley, in parts of Yolo, Colusa, Glenn, and Tehama Counties. The area includes 450 square miles (1,160 square kilometres). The boundaries are: West, the eastern slopes of the Coast Ranges; north, Elder Creek; northeast, the Sacramento River and the Glenn-Colusa Canal; east and southeast, the Colusa Basin...
Authors
Ronald P. Fogelman

Carbon, hydrogen, oxygen, and sulfur isotope study of the Darwin lead-silver-zinc deposit, Southern California Carbon, hydrogen, oxygen, and sulfur isotope study of the Darwin lead-silver-zinc deposit, Southern California

The ores at Darwin occur as massive replacement bodies in silicated limestones of Pennsylvanian and Permian age adjacent to a Jurassic quartz monzonite stock. Three types of ore have a definite spatial relationship to the quartz monzonite: (1) pyrite-sphalerite-galena ores, (2) pyrite-pyrrhotite-magnetite-sphalerite-galena ores, and (3) galena-Ag-Bi-Se ores.The delta 34 S values of all...
Authors
Robert O. Rye, Wayne E. Hall, H. Ohmoto

Stable isotope and chemical relations during mineralization in the Bodie mining district, Mono County, California Stable isotope and chemical relations during mineralization in the Bodie mining district, Mono County, California

Stable isotope and chemical relations have been determined in a typical epithermal Au-Ag deposit located in the Bodie mining district of California. Analyses were made of altered host rocks, vein minerals, alteration clays, fluid inclusions, modern spring waters, and unaltered rocks of the area.The results indicate that a hydrothermal convection system was set up by the interaction of a...
Authors
J. R. O’Neil, M.L. Silberman, B.P. Fabbi, C. W. Chesterman

Thermal and mineral waters of nonmeteoric origin, California Coast Ranges Thermal and mineral waters of nonmeteoric origin, California Coast Ranges

Recent isotope studies show that the waters involved in a variety of geologic processes are dominantly the local meteoric water of each area. In most active geothermal systems, the D/H ratio of the hot water is nearly identical with the local cold meteoric water, but the O18/O16 ratio has been shifted to a more positive value because of subsurface exchange with rocks. The numerous...
Authors
Donald E. White, Ivan Barnes, James R. O’Neil

The linear decision rule in reservoir management and design: 1, Development of the stochastic model The linear decision rule in reservoir management and design: 1, Development of the stochastic model

With the aid of a linear decision rule, reservoir management and design problems often can be formulated as easily solved linear programing problems. The linear decision rule specifies the release during any period of reservoir operation as the difference between the storage at the beginning of the period and a decision parameter for the period. The decision parameters for the entire...
Authors
Charles Revelle, Erhard Joeres, William H. Kirby
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