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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 5 of 5 (0.085 seconds)

Spelling suggestions: "subject:"groundwater -- arizona -- lima county."" "subject:"groundwater -- arizona -- lima bounty.""

1

Subsurface geology of the Santa Cruz well field, Pima County, Arizona

Gass, Tyler Evan, 1948- January 1977 (has links)
No description available.
Geology -- Arizona -- Pima County.
Groundwater -- Arizona -- Pima County.
maps
2

The recharge - discharge aspects of Green Valley, Pima County, Arizona

Janbek, Tayseer Tahir, 1941- January 1971 (has links)
No description available.
Water-supply -- Arizona -- Green Valley.
Groundwater -- Arizona -- Pima County.
maps
3

Tailings pond seepage and sulfate equilibrium in the Pima mining district, Pima County, Arizona

Scovill, Georgia Lynn, 1962- January 1988 (has links)
Mining activity is suspected of contributing sulfate and total dissolved solids (TDS) to ground water downgradient of the Pima mining district. High ionic concentrations in tailing impoundments suggest that tailings-pond recharge may be a source of the contamination. Experiments indicated that sulfate is not significantly produced by inorganic sulfide oxidation in the tailings ponds. Tailings pond water chemistries were compared with historical water quality analyses in the Pima district. The U.S.G.S. computer program PHREEQE modeled saturation indices for anhydrite, calcite, fluorite, and gypsum in water chemistries throughout the study area. Well water downgradient of the mines had lower saturation indices than tailings pond water which discredits the claim that tailings-pond recharge is acquiring salts as it percolates to the aquifer. Evidence supports the opinion that tailings pond seepage is contributing to the sulfate and TDS content in ground water downgradient of the ponds.
4

A shallow seismic reflection experiment in Avra Valley, Pima County, Arizona

Sene, Siki January 1983 (has links)
No description available.
Seismic reflection method.
Groundwater -- Arizona -- Avra Valley.
Groundwater -- Arizona -- Pima County.
5

SUBSURFACE HEAT FLOW AS A MEANS FOR DETERMINING AQUIFER CHARACTERISTICS IN THE TUCSON BASIN, PIMA COUNTY, ARIZONA

Supkow, Donald James. January 1971 (has links)
No description available.
Groundwater -- Arizona -- Pima County.
Aquifers -- Arizona -- Pima County.

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