Montana · Powell County
Past Producer
Emery Mine
Powell County, Montana, United States
Gold
Silver
Lead
Zinc
Copper
Antimony
Arsenic
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USGS source ↗
Description
John Renault
Commodities
Primary
Gold, Silver, Lead, Zinc
Secondary
Copper
Tertiary
Antimony, Arsenic
Commodity type
M
Deposit
Deposit type
Polymetallic veins
Model
85: Polymetallic veins
Deposit size
S
Workings
Underground
Orebody form
TABULAR
Ore control
Northeast-Trending Reverse Fault, Post-Mineralization Black Rock Fault Strikes West, Dips North And Cuts Off South End Of Vein, The Emery Lode Is Off Set 500-1000 Ft In A Horizontal Plane.
Materials
Ore minerals
Chalcopyrite, Galena, Gold, Sphalerite, Tetrahedrite, Boulangerite
Gangue
Ankerite, Pyrite, Quartz
Geology
Host rock
Andesite
Associated rock
Tuff,Andesite,Basalt · Elkhorn Mountain Volcanics
Structure
Boulder Batholith, West-Plunging Syncline, Northeast Northwest-Trending Fracture System
Tectonic setting
Cordilleran Miogeosyncline
Alteration
Argillization, Oxidation, Silicification, Pyritization
Economic & production
Development status
Past Producer
Discovery year
1888
Identification
Deposit ID
10071363
MRDS ID
W014704
Alternate names
Carbonate Hill Mine, Carbonate Extension
Region
NA
Data score
B
Coordinates
46.37712, -112.58006
References
MBMG BULL 98, P. 22, 23, 58.MBMG MEM 34, P. 29.USGS BULL 842, P. 274-77. P. 73-4USGS PP 57, P. 110-11.MBMG BULL 98, P. 58 , 60.