Mine detail: Midas Mine

Previously called 'Granby Consolidated Mining, Smelting and Power Co.Orebodies: Jumbo Lode, All-American'

<< Back to the map

Location

Lat / long:

61.01238, -146.2767

Resource(M)

Primary:	Copper
Secondary:	Silver, Gold
Tertiary:	Zinc, Lead
Ore:	Chalcopyrite, Galena, Pyrrhotite, Sphalerite
Gangue:	Calcite, Quartz
Other material:	Pyrite
Discovery year:	1901

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1912
Last production ended:	1919

Geology

Host rock:	Valdez Group
Host type:	Siltstone
Associated rock:	Valdez Group
Associated type:	Greenstone
Structure:	Shear 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:	Chugach Terrane

References

MRDS	A011481
DEP	10000828
Reference	{Deposit:: USGS BULL 622, P. 151-153, 156-157, 187-188}{Deposit:: USBM BULL 142, P. 38, 40}{Deposit:: USBM BULL 153, P. 46-47}{Deposit:: USGS BULL 692, P. 164-166, 168-171}{Deposit:: ADGGS GR 15, P. 1, 5-12, 19}{Deposit:: USBM IC 8626, P. 21}{Deposit:: USGS OFR 80-892B, LOC. 32}{Deposit:: ADGGS SR 31, LOC. 146}{Other Database:: BAG-OFR-80-892B-32}{Production:: USBM BULL 153, P. 47 AND ADGGS GR 15, P. 7}
Reporter	Leonard, Kenneth R. (Elliott, R. L.), Mosier, Dan