Commodities
PrimaryCopper, Silver
SecondaryLead, Gold
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Ore controlN-S Trending Quartz Vein Along Contact Between Quartz Monzonite And Diorite
Materials
Ore mineralsChalcopyrite, Galena, Pyrite
GangueQuartz
Geology
Host rockQuartz Monzonite
Associated rockDiorite,Hornblendite
StructureDeposits Occur In Form Of Subordinate Veins, Lenses, Stringers, And Seams In Intrusive Fissures, Joints, Sheeting Planes, And Other Fractures In Quartz Monzonite And Diorite, Diorite Forms Footwall And Quartz Monzonite Forms Hanging Wall Of Vein System
Tectonic settingGuajolote Fault Block; Nw-Trending Inferred Guajolote Fault Lies To E Of Deposits; Downthrow To E
AlterationQuartz Vein Is Banded, Drusy, And Highly Iron-Stained At Surface; Strong Wallrock Alteration
Economic & production
Development statusProducer
First production1903
Last production1942
Discovery year1888
Identification
Deposit ID10048333
MRDS IDM899915
Alternate namesThesssalia, Gladstone-Proto Group, Gladstone Mine
RegionNA
Data scoreB
Coordinates31.40014, -110.75011
References
MSBM-ABGMT PRODUCTION DATA; GLADSTONE-PROTO MINE GROUPSCHRADER, F.C., 1915, USGS BULL 582, P. 316-317KEITH, S.B., 1975, INDEX OF MINING PROPERTIES IN SANTA CRUZ COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 191, P. 81ADMR FILE DATA, GLADSTONE (PROTO, INDEPENDENCE) MINEUSBM FILES, PROTO GROUPABGMT CLIPPINGS FILE, GLADSTONE MINESIMONS, FRANK S., 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)ABGMT FILES, STANTON B. KEITHTENNEY, JAMES B., 1927-1929, HISTORY OF MINING IN ARIZONA; ARIZONA BUREAU OF MINES P. 313