Commodities
PrimaryCopper
SecondarySilver
TertiaryGold, Beryllium
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR, TABULAR
Ore controlIntrusive Contact - Shear Zone: S25w, Steep Se Dip
Materials
Ore mineralsBornite, Chalcopyrite, Covellite
Geology
Host rockLimestone · Concha Limestone
Associated rockQuartz Latite · Quartz Latite
StructureHomoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N., Thrust And Normal Faulting - Fracture Zones.
Tectonic settingBasin And Range
AlterationGarnetization, Silicification
Economic & production
Development statusPast Producer
First production1889
Last production1902
Discovery year1887
Identification
Deposit ID10039409
MRDS IDM050042
Alternate namesLight Weight
RegionNA
Data scoreB
Coordinates31.8643, -110.7804
References
SCHRADER, F.C., 1915, USGS BULL 582.ARIZONA BUREAU OF MINES, 1971, FIELDNOTES, V. 1, NO 2.DREWES, H., 1971, USGS MAP I-613 (SAHUARITA QUAD).CREASEY, S.C., 1955, USGS BULL 1027F.JOHNSON, V.H., 1941, GEOLOGY OF THE HELVETIA MINING DISTRICT, PIMA COUNTY, ARIZONA: UNIV OF ARIZONA PH.D THESIS.1909 RECON F. C. SCHRADER U.S.G.S. BULL. 582.1971 DIREXPL ANACONDA-POSSIBLE NEW PORPH. COPPER DEPOSIT.1971 GEOLMAP H. DREWES U.S.G.S. MAP I-613.CIMRIKEITH, S.B., 1974, ABM BULLETIN 189, P.126.