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Thunderbolt Mine (Silver Zone Mine), Black Canyon, Black Canyon District, Wickenburg Mts, Yavapai Co., Arizona, USA

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Latitude & Longitude (WGS84): 34° 14' 7'' North , 112° 12' 20'' West
Latitude & Longitude (decimal): 34.23527908325195, -112.20555877685547


‡Ref.: Arizona Mining Journal (1917) September, 1917: 13.

Lindgren, W. (1926), Ore deposits of the Jerome and Bradshaw Mountains quadrangles, Arizona, USGS Bull. 782: 29, 158-159.

Guiteras, J.R. (1936) Gold Mining and Milling in the Black Canyon area, Yavapai County, Arizona. U.S. Bureau of Mines Information Circular 6905: 21.

Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 9.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 42.

Harrer, C.M. (1964), Reconnaissance of Iron Resources in Arizona, US Bureau of Mines Information Circular 8236: 108.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 170, 340, 373.

USGS Bumble Bee Quadrangle map.

U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology file data.

Arizona Department of Mineral Resources Eclipse group file.

Arizona Department of Mineral Resources Thunderbolt file.

MRDS database Dep. ID #10027171, MRDS ID #M002365; and, Dep. ID #10186342, MAS ID #0040251487.

A former underground Ag-Pb-Zn-Au-Cu mine located on the east side of Black Canyon, 3½ miles SE of Turkey Creek Station. Discovered 1905. Produced 1911-1968. Owned by D.J. Thompson; and, the Black Canyon Mining Co., Kansas City, MO.

Mineralization is a flat vein in amphibolite schist traceable for 1 mile and dips N.20ºW. at several feet in maximum width. Ore body is tabular. Ore has a quartz gangue. Ore control was faulting and shearing. Concentration was oxidation at near surface.

Area structures include low-angle (less than 40 degrees) veins cut across foliation. Foliation and transposed bedding in metavolcanic rocks trend N-S.

Workings include an 1,800 foot long tunnel that connects with the shaft on the hill 240 feet higher. Some 750 tons of ore shipped.

Mineral List


9 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleoproterozoic
1600 - 2500 Ma
Rhyolitic flows and pyroclastic rocks

Age: Proterozoic (1600 - 2500 Ma)

Description: Fine-grained, porphyritic rhyolite containing phe­nocrysts of quartz and minor feldspar. Includes small bodies of breccia and tuff, as well as silicified and veined rhyolite that is not included in the hydrothermally altered rhyo­lite related to massive sulfide mineralization (unit Xrh). Some flows have extensively brecciated flow tops and margins, and are difficult to distinguish from bodies of breccia. Exposed throughout zones 1 through 6. Particularly abundant in zone 5A along eastern margin of Crazy Basin Granite and in zone 6B in southern Black Hills. Flows and minor tuff east of Climax mine in zone 2 are interbedded with dacite and more mafic rocks. Bodies north of Spruce Mountain in zone 3A are mostly flows, but include some hypabyssal intrusive masses that cut basaltic andesite. Limited data suggest that flows and hypabyssal bodies are calc-alkalic rhyolite to rhyodacite that is mildly peraluminous, very sodic, and Mg rich. Thin flows and minor bodies of tuff north of Chaparral high-strain zone and near Lynx Creek in zone 3A range from calcic rhyolite to rhyodacite that is strongly peralu­minous, very sodic, and very Mg rich to alkali-calcic rhyolite that is mildly peralumi­nous, very sodic, and Fe rich (Vance, 1989; this study). South of Chaparral high-strain zone, along Big Bug Creek, in zone 4B, bodies of rhyolite are interbedded with rhyodacite and minor tuff. Least altered bodies of rhyolite range in composition from calcic rhyodacite to alkali-calcic rhyolite that is mildly per­aluminous, ranges widely in K/Na ratio, and is average to Fe rich (Vance, 1989). North of Big Bug Creek, near Mt. Elliott, limited data suggest presence of alkali-calcic rhyo­lite to alkali rhyolite that is mildly peraluminous, average in K/Na ratio, and Fe rich. Large bodies of rhyolite, breccia, and tuff are exposed from north of Crown King stock to southeast of Humboldt in zone 4C. The largest bodies, near DeSoto mine and southeast of Round Hill, are silicified. Limited data from smaller bodies north and west of Mayer suggest rhyolite is alkali-calcic, mildly peraluminous, sodic, and average in Fe/Mg ratio. Largest concentration of rhyolite flows, tuffs, and variably silicified rhyolite in map area is along Black Canyon and within the Black Canyon high-strain zone, from near Cordes to past southern boundary of map area (Jerome, 1956; Anderson and Blacet, 1972c). Silicification and loss of alkali metals make original composition of rhyolites difficult to ascertain. Bodies of rhyolite near Cordes in zone 5A are fine-grained flows interbedded with andesite and basaltic andesite. Rhyolite is calc-alkalic, mildly peraluminous, very sodic, and average to Fe rich. Numerous bodies of rhyolite from southeast of Round Hill to west of Yarber Wash in zone 5B range from flows to hypabyssal intrusive masses. Data are too limited to assess the chemistry of these rhyolite bodies. Fine-grained to aphanitic flows and hypabyssal bodies are interbedded with tuff west of northern Black Hills, along Coyote Wash (zone 6A). Limited data suggest that high-silica rhyolite is calc-alkalic, mildly peraluminous, very sodic, and Fe rich. Porphyritic rhyolite containing quartz and minor plagioclase phenocrysts at Wil­low Spring, east of Dugas in zone 6A, is alkali-calcic, mildly peraluminous, very sodic, and average to very Fe rich. The Buzzard Rhyolite in southern Black Hills (zone 6B) is a flow-banded rock that contains phenocrysts of plagioclase and quartz. Fragments of felsic volcanics are common in rhyolite, and breccia beds that lack matrix material are noted (Anderson and Creasey, 1958). This high-silica rhyolite ranges from calcic to alkali-calcic and is mildly to strongly peraluminous, very sodic, and Mg rich to Fe rich. Cleopatra Formation (previously referred to as Cleopatra Quartz Porphyry) and Deception Rhyolite at Jerome are suggested to be as old as 1.76 Ga (Anderson and others, 1971). Newer determination of 1,738±0.5 Ma (S.A. Bowring, supplementary data in Slack and others, 2007) is preferred age of rhyolite

Comments: Early Proterozoic plutonic rocks are widely exposed throughout map area. In order to aid in the discussion of these rocks, the exposures of plutonic and metavolcanic rocks are divided into six zones (zones 1–6, from west to east). These zones are roughly parallel to regional foliation and contain rock units that are similar to one another. The zones are not crustal blocks nor are they necessarily separated from one another by discrete tectonic structures

Reference: DeWitt, E., V. Langenheim, E. Force, R.K. Vance, P.A. Lindberg, R.L. Driscoll. Geologic map of the Prescott National Forest and the headwaters of the Verde River, Yavapai and Coconino Counties, Arizona. Scientific Investigations Map SIM-2996. [99]

Statherian
1600 - 1800 Ma
Early Proterozoic metavolcanic rocks

Age: Statherian (1600 - 1800 Ma)

Stratigraphic Name: Pinal Schist; Yavapai Supergroup; Tonto Basin Supergroup; Vishnu Schist

Description: Weakly to strongly metamorphosed volcanic rocks. Protoliths include basalt, andesite, dacite, and rhyolite deposited as lava or tuff, related sedimentary rock, and shallow intrusive rock. These rocks, widely exposed in several belts in central Arizona, include metavolcanic rocks in the Yavapai and Tonto Basin supergroups. (1650 to 1800 Ma)

Lithology: Major:{metavolcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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