Location: | Madison County, Montana, United States, North America |
Lat / long: | 45.79351, -112.00226 |
dep_id: | 10019512 |
mrds_id: | DC10726 |
Commodity type: | metallic |
Major mineral: | Gold, Tellurium |
Minor mineral: | Silver |
Operation type: | Unknown |
Deposit type: | Alkaline Au-Te (Au-Ag-Te veins) |
Production size: | Small ammount of material produced |
Development status: | Past Producer |
ore: | Calaverite, Sylvanite |
gangue: | Quartz |
orebody_fm: | CHIMNEYS, PIPES |
work_type: | Underground |
model: | 84: Alkaline Au-Te (Au-Ag-Te veins) |
alteration: | Silicification, Brecciation, Oxidation |
conc_proc: | Secondary Enrichment Above 300 Ft. Depth. |
ore_ctrl: | Fault Zone, Limestone Bed |
Reporter: | Unknown, Loen, Jeffrey S. (Pearson, Robert C.) |
hrock_unit: | Madison |
hrock_type: | Limestone |
arock_unit: | Volcanic Rocks |
arock_type: | Andesite |
Structure: | Several Faults, A Nw Fault With Ne Dip Displaces The Ore Body 300 Ft. To East. (Winchell, 1914) |
disc_yr: | 1896 |
prod_yrs: | 1935-42: Anaconda operated the mine during this period.
1958-61: The deposit was mined again under a lease agreement. |
References: |
- Deposit:: USGS BULL 574, P. 97-101.
- Deposit:: MBMG MEM 9, P. 31-32.
- Deposit:: USBM IC 6972, P. 71-72.
- Deposit:: REYNER, M.L., 1950, DIRECTORY OF MINING PROPERTIES, 1949: MT. BUREAU OF MINES AND GEOL., MEMOIR 31, P.74. BYRNE, J., 1901, TWELFTH ANNUAL REPORT-INSPECTOR OF MINES, STATE OF MONTANA, 1900, P.21.
- Deposit:: 1914 RECON WINCHELL, A.N., U.S.G.S. BULLETIN 57
- Production:: MBMG MEM. 9, MBMG MEM 31
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