Mineral Resource Map
Map
Browse
About
Mine detail: Red Cloud Group
Browse
North America
United States
Montana
Granite
Previously called 'Red CloudCrescentLead King'
<< Back to the map
Location
Lat / long:
46.81961, -113.33982
Resource(B)
Primary:
Gold, Silver
Secondary:
Copper, Lead
Tertiary:
Molybdenum, Barium-Barite, Antimony
Ore:
Chalcopyrite, Galena, Gold, Molybdenite, Tetrahedrite
Gangue:
Barite, Limonite, Pyrite, Quartz
Orebody form:
TABULAR-VEIN HAS BANDED STRUCTURE RED CLOUD VEIN LIES ALONG THE BEDDING PLANE
Discovery year:
1867
Production
Operation type:
Unknown
Deposit type:
Replacement Vein
Production size:
Small
Development status:
Past Producer
First production started:
1897
Geology
Host rock:
Silver Hill Formation;Flathead Formation;Garnet Range Formation;Mcnamara Formation
Host type:
Quartzite,Schist
Associated rock:
Garnet Stock
Associated type:
Diorite
Structure:
Bearmouth Overthrust, Deep Creek Anticline, Mount Baldy Synclinorium., Vein Lies On Bedding Plane On Northern Limb And Near Crest Of Deep Creek Anticline Which Here Trends About N 80 W And Plunges About 30 W. Vein Is About 200 M North Of Axis Of Anticline. Vein Is Cut By Small Northeastery Normal Faults. Some Postmineral Movement Has Taken Place In The Plane Of The Vein.
Tectonic:
Cordilleran Miogeosyncline
Alteration processes:
Sericitization, Oxidation
References
MRDS
W014655
DEP
10071324
Reference
{Deposit:: USGS BULL 660 , P. 190-94, PL. 1X.}{Deposit:: MBMG MEM NO 39, P. 28}{Deposit:: MBMG MEM NO 31, P. 31}{Production:: MBMG MEM. 31, MBMG MEM. 39, USGS BULL. 660-F}
Reporter
Krohn, Douglas H., Wise, Kristine K. (Elliott, James E.)