Mine detail: Strawn Mine

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Location: Madison County, Montana, United States, North America
Lat / long: 45.66657, -112.13226
dep_id: 10019752
mrds_id: DC11365
Commodity type: metallic
Major mineral: Gold, Silver
Operation type: Unknown
Deposit type: Replacement
Production size: Small ammount of material produced
Development status: Past Producer
gangue: Hematite, Quartz, Stibnite
orebody_fm: IRREGULAR
work_type: Underground
alteration: Brecciation, Silicification, Oxidation
ore_ctrl: Limestone Bed, Fault Zone, Ore Is Associated With The Basic Intrusives.
Reporter: Loen, Jeffrey S. (Pearson, Robert C.), Unknown
hrock_unit: Meagher;Pony Gneiss
hrock_type: Dolomite
arock_unit: Altered Basic Intrusive
arock_type: Basalt
Structure: Bismark Fault Trends N45 To 50w, Dipping Near Vertical., Post-Ore Faults, Up On East. Strawn Fault Trends N10e, 80w.
tectonic: Tobacco Root Batholith, West Margin
disc_yr: 1921
prod_yrs: 1921-1942
discr: Julian E. Strawn
References:
  • Deposit:: MBMG MEM 9, P. 38.
  • Deposit:: USBM IC 6972, P. 70.
  • Deposit:: REYNER, M.L., 1950, DIRECTORY OF MONTANA MINING PROPERTIES, 1949: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 31, P. 71.
  • Deposit:: REID, R.P., 1957, BEDROCK GEOLOGY OF THE NORTH END OF THE TOBACCO ROOT MOUNTAINS, MADISON COUNTY, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 36, 25 P.
  • Deposit:: HOGBERG, R.K., PRIVATE COMPANY REPORT, 1963
  • Deposit:: 1957 GEOLMAP MBMG MEMOIR 36
  • Production:: HOGBERG, 1963,PRIVATE CO. REPORT
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