Map, description and bibliography of the mineralized areas of the Basin and Range Province in Arizona

Keith, Stuart; Schnabel, Lorraine; DeWitt, Ed; Gest, D.E.; Wilt, Jan C.

doi:10.3133/ofr8486

Cited by 3 publications

(14 citation statements)

References 37 publications

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“…Production data for the remaining nine districts, which contain 48 mines for which metal data are available, allow trends in metal content and metal ratios from mine to mine and district to district to be evaluated. Some of these trends were noted by DeWitt (1983) and Lindberg (1989).…”

Section: Introductionmentioning

confidence: 82%

“…Many, however, have not been mapped or sampled since Lindgren's (1926) report on mines in the Prescott-Jerome region. This summary paper and previous summaries (Anderson and Guilbert, 1979;DeWitt, 1983;Lindberg, 1989) reveal trends in metal concentrations that were caused by first -order crustal differences and second-order thermochemical conditions of ore deposition. Obviously, additional work is needed on most deposits before they will be more fully understood.…”

Section: Distribution Age and Characteristics Of Depositsmentioning

confidence: 99%

“…1 and 5) and is characterized by massive sulfide deposits spatially associated with one metarhyolite tuff that is overlain and underlain by metabasalt (Lindgren, 1926;Creasey, 1950Creasey, , 1952Gilmour and Still, 1968;Anderson and Blacet, 1972b;Bouley and Hodder, 1976;Webb, 1979;Anderson and Guilbert, 1979;DeWitt, 1983DeWitt, , 1987Anderson, 1986aAnderson, , 1989aO'Hara and Armstrong, 1986). The district has the lowest copper grade and the highest lead, silver, and gold grades of any district (table 1).…”

Section: Big Bug Districtmentioning

confidence: 99%

“…1), the Agua Fria district ( fig. 2) contains massive sulfide deposits that are largely restricted to metarhyolite flows and tuffs (Lindgren, 1926;Evensen, 1969Evensen, , 1980Anderson and Blacet, 1972b,c) Anderson and Guilbert, 1979;DeWitt, 1983DeWitt, , 1987Anderson, 1986a;1989a). The district is unusual for its low gold and silver grade.…”

Section: Agua Fria Districtmentioning

confidence: 99%

“…Early Proterozoic massive sulfide deposits associated with submarine mafic to felsic metavolcanic rocks are present throughout central, west -central, and northwestern Arizona (Anderson and Guilbert, 1979;DeWitt, 1983DeWitt, , 1987others, 1983, 1984;Conway and Silver, 1986;Eastoe and others, 1987;Donnelly and Conway, 1988;Lindberg, 1989). Production data for copper, lead, zinc, gold, and silver (Arizona Geological Survey, unpub.…”

Section: Introductionmentioning

confidence: 99%

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Base- and precious-metal concentrations of early Proterozoic massive sulfide deposits in Arizona; crustal and thermochemical controls of ore deposition

DeWitt¹

1995

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Section: Introductionmentioning

confidence: 82%

Section: Distribution Age and Characteristics Of Depositsmentioning

confidence: 99%

Section: Big Bug Districtmentioning

confidence: 99%

Section: Agua Fria Districtmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Base- and precious-metal concentrations of early Proterozoic massive sulfide deposits in Arizona; crustal and thermochemical controls of ore deposition

DeWitt¹

1995

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Studies of geology and hydrology in the Basin and Range Province, Southwestern United States, for isolation of high-level radioactive waste: Characterization of the Sonoran region, Arizona

1984

Open-File Report

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The Sonoran region, southwestern Arizona, of the Basin and Range province, is south and east of the Colorado River. The structural basins typically are filled with 200 to 1,500 meters of clastic material with thick evaporite sections present locally. Basins of the region generally trend north-northwest. Relief between the valleys and adjacent mountains generally is 300 to 1,300 meters. Surface drainage is to the Colorado River, major tributaries being the Bill Williams and Gila Rivers. A few basins have interior or poorly integrated drainage. Bedrock is exposed in about one-fourth of the region. Bedrock consists of Precambrian metamorphic and plutonic rocks, Paleozoic sedimentary rocks, Mesozoic volcanic and sedimentary rocks, and middle to late Tertiary volcanic and plutonic rocks. In addition to igneous tectonism, the rocks have been repeatedly deformed and moved along slight and steep-angle faults. Present topography was largely shaped by Tertiary basin-and-range faulting, erosion, and deposition. 1 Potential host media for isolation of high-level radioactive waste in the Sonoran region, Arizona, include intrusive rocks, tuffaceous rocks, basaltic rocks, laharic breccias, and salt. Basin-fill deposits, and possibly other rock types, have potential as host media in the unsaturated zone. Quaternary tectonism in the region is indicated in the northwest and southern part of the region by relatively substantial strain release, epicenters of few earthquakes greater than magnitude 4 (Richter scale, surface wave), and vertical crustal movement. Quaternary volcanic rocks may be present in the late Cenozoic volcanic field in the southeastern part of the region. The Sonoran region is arid with annual precipitation less than 200 millimeters throughout most of the region and annual potential evaporation greater than 2.5 meters. Recharge of ground water occurs principally in areas of higher altitude where bedrock is permeable and by infiltration of mountain runoff in the basin areas. Discharge of ground water occurs by seepage to gaining streams, evapotranspiration, springs, and by withdrawal from wells. In most of the region, the concentration of dissolved solids in ground water is less than 500 milligrams per liter. Ground water near the Gila River and the Colorado River contains 1,000 milligrams per liter or more dissolved solids. The ground water is mostly of the calcium mangesium or sodium bicarbonate type. Sulfate and chloride type waters occur in and near large discharge areas and in some playas. Mineral development in the 19th century was confined to precious-metal lodes, base-metal vein and replacement ores, and placer deposits. More recent development has focused on large scale open-pit copper mines, which produce substantial quantities of precious metals as byproducts.

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Studies of geology and hydrology in the Basin and Range province, southwestern United States, for isolation of high-level radioactive waste: Characterization of the Sonoran region, California

Bedinger¹,

Sargent²,

Langer³

1989

Professional Paper

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Map, description and bibliography of the mineralized areas of the Basin and Range Province in Arizona

Cited by 3 publications

References 37 publications

Base- and precious-metal concentrations of early Proterozoic massive sulfide deposits in Arizona; crustal and thermochemical controls of ore deposition

Base- and precious-metal concentrations of early Proterozoic massive sulfide deposits in Arizona; crustal and thermochemical controls of ore deposition

Studies of geology and hydrology in the Basin and Range Province, Southwestern United States, for isolation of high-level radioactive waste: Characterization of the Sonoran region, Arizona

Studies of geology and hydrology in the Basin and Range province, southwestern United States, for isolation of high-level radioactive waste: Characterization of the Sonoran region, California

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