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Big Dome Mine (Big Dome claim; Big Dome prospect; Promontorio group; Senora; Big Dome-Dusty No. 4 claim), Buckeye vein group, Castle Dome Mine group, Kofa Game Range, Castle Dome District, Castle Dome Mts, Yuma Co., Arizona, USA

Latitude: 33°1'54"N
Longitude: 114°10'6"W
A former underground Pb-Zn-Fluorspar mine located in the center of the SE¼ sec. 36, T4S, R19W, on the southern end of the Buckeye vein, on the Kofa Game Range.

Mineralization is a vein deposit with a linear ore body that strikes S25E and dips 70W. Visible rocks on this claim consist of steeply westward-dipping shale cut by large dikes of diorite porphyry. Tectonic influences include block faulting.

Workings include 4 old shafts and an adit. The shafts were reported to be from 180 to 225 feet (68.58 meters) deep.

References

Blake (1880).

Blake, William P. (1881a), Vanadinite in Arizona, American Journal of Science: 22: 235.

Blake, William P. (1881b), On the occurrence of vanadates of lead at the Castle Dome mines in Arizona, American Journal of Science: 22: 410-411.

Nevius, J.N. (1912) The Castle Dome lead district, Arizona: Mining and Scientific Press: 104: 854-855.

Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 95-96.

Phelps, Harlow D. Fluorspar Lead Silver Mines Castle Dome District. War Minerals Report Oct 194_.

Haury, P.S. (1945) US Bureau of Mines Report on Arizona Lead Co, July, 1945.

Wilson, E.D., et al (1950), Arizona zinc & lead deposits, Part I, Arizona Bureau of Mines Bull. 156: 98, 115.

Wilson, E.D., et al (1951), Arizona zinc and lead deposits, part II, Arizona Bureau of Mines Bull. 158: 110.

Keith, Stanton B. (1978), State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma County, Arizona: 119 (Table 4).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10098207, MRDS ID #M001817; and, Dep. ID #10283800, MAS ID #0040270028.

Mineral List

Anglesite
Cerussite
Fluorite
Galena


4 entries listed. 4 valid minerals.

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