Commodities
PrimaryManganese
TertiaryCopper
Commodity typeM
Deposit
Deposit typeReplacement
Deposit sizeN
WorkingsUnderground
Orebody formTABULAR
Materials
Ore mineralsBementite, Copper, Hausmannite
GangueCalcite, Chlorite
Geology
Host rockLimestone,Basalt · Metchosin
Associated rockBasalt · Metchosin Volcanics
StructureTwo Prominent Faults And Several Minor Faults Offset The Manganese A Few Feet In Several Places.
Tectonic settingActive Margin (Leading Edge Of North American Plate)
AlterationWeathered Surfaces Of The Rock Are Encrusted To A Maximum Thickness Of One-Half Inch With Black Secondary Oxides Of Manganese.
Economic & production
Development statusOccurrence
Identification
Deposit ID10095770
MRDS IDM700265
RegionNA
Data scoreB
Coordinates47.84841, -123.1007
References
WASH. BMG BULL 37, P. 259USBM RI 5530, P. 58-59USGS BULL 931-R, P. 450WASH. DMM RI NO. 7, P. 34