Arizona · Pima County
Past Producer

Black Dragon Group

Pima County, Arizona, United States
Manganese
⌖ Show on mapUSGS source ↗
Description

Wm. H. Coplen

Commodities
PrimaryManganese
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface
Orebody formIRREGULAR FRACTURE FILLINGS
Ore controlNorth-South Trending Fracture Zone.
Materials
Ore mineralsPyrolusite
Geology
Host rockRhyolite · Mulberry Wash Formation-Upper-Volcanics;Pitoikam Formation-Lower-Sh. Ss, Cong. Etc
Associated rockRhyolite
StructureBlock Faulting. ; Reg.Trends: Nw Faults - Earler, Ne Fracture Zone
Tectonic settingBasin And Range.
Economic & production
Development statusPast Producer
Production years1953-1955
First production1953
Discovery year1952
Identification
Deposit ID10103748
MRDS IDM050260
RegionNA
Data scoreB
Coordinates31.85345, -111.61014
References
FARNHAM, STEWART, AND DELONG, 1961, USBM IC 7990.FAIR C.L. 1965, GEOLOGY OF FRESNAL CANYON AREA: UNIV. ARIZ. PH.D. THESIS.NOWLAN, G.A., HAXEL, G.B., HANNA, W.F., PITKIN, J.A., DIVELEY-WHITE, D.V., MCDONNELL, J.R., JR., AND LUNDBY, WILLIAM, 1989, MINERAL RESOURCES OF THE BABOQUIVARI PEAK AND COYOTE MOUNTAINS WILDERNESS STUDY AREAS, PIMA COUNTY, ARIZONA: U.S. GEOLOGICAL SURVEY BULLETIN 1702, 30 P.1956 RECON U.S.B.M. IC 7990FARNHAM, STEWART, AND DELONG, 1961, MANGANESE DEPOSITS OF EASTERN ARIZONA: USBM INF. CIRC. 7990CIMRI