Mine detail: La Palma Group

Previously called 'Claims: La Palma, Venus, San FranciscoLaura'

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Location

Lat / long:

33.15371, -109.38676

Resource(M)

Secondary:	Lead
Tertiary:	Manganese
Ore:	Psilomelane
Orebody form:	IRREGULAR
Discovery year:	1925

Production

Operation type:	Unknown
Deposit type:	Replacement
Production size:	Small
Development status:	Producer

Geology

Host rock:	Modoc Limestone;Morenci Shale;;Longfellow Limestone
Host type:	Limestone
Structure:	Minor 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:	Precipitous Gully Terrain; Deposits Are In Isolated, Rugged Terrain Along Crest And Flanks Of S-Trending Ridge
Alteration processes:	Irregular Bodies Of Psilomelane And Other Mn Minerals Have Replaced Limestone Beds; Some Surface Oxidation

References

MRDS	M001691
DEP	10109000
Reference	{Deposit:: FARNHAM, L.L., STEWART, L.A., AND DELONG, C.W., 1961 , MANGANESE DEPOSITS OF EASTERN ARIZONA: U.S.B.M. INFORMATION CIRCULAR 7990 , P. 97-98}{Deposit:: USBM FILES, LA PALMA GROUP; LA PALMA, VENUS, AND SAN FRANCISCO}{Deposit:: BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS UNIVERSITY OF ARIZONA, 153 P.}{Production:: U.S.B.M. I.C. 7990 , P. 97 .}
Reporter	Johnson, Kris H. (Creasey, S.C.), Calder, Susan R.