Commodities
PrimaryCopper
SecondarySilver, Gold
TertiaryIron
Commodity typeM
Deposit
Deposit typeReplacement
Deposit sizeS
Orebody formLENTICULAR
Ore controlShear Zone
Materials
Ore mineralsCubanite, Pyrrhotite, Sphalerite
GangueCalcite, Gypsum, Quartz
Geology
Host rockShale,Siltstone
Associated rockAndesite
StructureHomocline With Beds Of Shale And Graywacke, Paralleling General Strike Of Graywacke And Shale Are Several Notable Faults Marked By Depressions, Shear Zones And Landslides.
AlterationSilicification
Economic & production
Development statusPast Producer
Production years1915 - 1930
Identification
Deposit ID10072353
MRDS IDW017588
Alternate namesLeach, Annex, Merritt Gore, Shotgun
RegionNA
Data scoreB
Coordinates40.03318, -123.48528
References
O'BRIEN, J.C., 1965 : MINES AND MINERALS, TRINITY COUNTY, CA.: CALIF. DIV. MINES AND GEOLOGY, COUNTY REPT. 4, P. 21 , 62STINSON, M.C., 1957 : GEOLOGY OF THE ISLAND MOUNTAIN COPPER MINE, TRINITY COUNTY, CA.: CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NOS. 1 & 2 : DIV. OF MINES, P. 9 - 33O'BRIEN, J.C., 1965 , P. 21