Commodities
PrimaryCopper
SecondarySilver, Gold
TertiaryZinc, Lead
Commodity typeM
Deposit
Deposit sizeS
Ore controlFracture Controlled
Materials
Ore mineralsChalcopyrite, Galena, Pyrrhotite, Sphalerite
GangueCalcite, Quartz
Other materialsPyrite
Geology
Host rockSiltstone · Valdez Group
Associated rockGreenstone · Valdez Group
StructureShear Zones Developed In Slate Country Rock That Has Been Folded Against Graywacke, N-S Fault Runs About 1000 Ft W Of Mine, May Cut Off Ore Body; Minordrag Folds Suggest Anticline To The S
Tectonic settingChugach Terrane
Economic & production
Development statusPast Producer
First production1912
Last production1919
Discovery year1901
Identification
Deposit ID10000828
MRDS IDA011481
Alternate namesGranby Consolidated Mining, Smelting and Power Co., Orebodies: Jumbo Lode, All-American
RegionNA
Data scoreB
Coordinates61.01238, -146.27671
References
USGS BULL 622, P. 151-153, 156-157, 187-188USBM BULL 142, P. 38, 40USBM BULL 153, P. 46-47USGS BULL 692, P. 164-166, 168-171ADGGS GR 15, P. 1, 5-12, 19USBM IC 8626, P. 21USGS OFR 80-892B, LOC. 32ADGGS SR 31, LOC. 146BAG-OFR-80-892B-32USBM BULL 153, P. 47 AND ADGGS GR 15, P. 7