Commodities
SecondaryLead
TertiaryManganese
Commodity typeM
Deposit
Deposit typeReplacement
Deposit sizeS
WorkingsSurface
Orebody formIRREGULAR
Ore controlDeposits Are Conformable To Bedding Of The Limestone Which Strikes N40e And Dips About 20nw
Geology
Host rockLimestone · Modoc Limestone;Morenci Shale;;Longfellow Limestone
StructureMinor Faulting With Little Vertical Displacement; Significant Horizontal Movement Along Bedding Planes, Minor Faulting Cutting Limestone And Shale Beds: Ore Deposits Cover A Considerable Surface Area But Average Less Than One Ft Thick
Tectonic settingPrecipitous Gully Terrain; Deposits Are In Isolated, Rugged Terrain Along Crest And Flanks Of S-Trending Ridge
AlterationIrregular Bodies Of Psilomelane And Other Mn Minerals Have Replaced Limestone Beds; Some Surface Oxidation
Economic & production
Development statusProducer
Discovery year1925
Identification
Deposit ID10109000
MRDS IDM001691
Alternate namesClaims: La Palma, Venus, San Francisco, Laura
RegionNA
Data scoreB
Coordinates33.15371, -109.38676
References
FARNHAM, L.L., STEWART, L.A., AND DELONG, C.W., 1961 , MANGANESE DEPOSITS OF EASTERN ARIZONA: U.S.B.M. INFORMATION CIRCULAR 7990 , P. 97-98USBM FILES, LA PALMA GROUP; LA PALMA, VENUS, AND SAN FRANCISCOBENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS UNIVERSITY OF ARIZONA, 153 P.U.S.B.M. I.C. 7990 , P. 97 .