Mine detail: Bryan Mine

Previously called ''

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Location

Lat / long:

47.46126, -115.5474

Resource(M)

Primary:	Lead, Silver
Secondary:	Zinc, Copper
Ore:	Chalcopyrite, Galena, Silver, Sphalerite, Tetrahedrite
Gangue:	Pyrite, Quartz, Siderite, Tremolite

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Burke Formation;Revett Quartzite
Host type:	Quartzite
Structure:	A Major Structural Grain Trends Nw And Is Made Of Subparallel Faults And Folds., Nw Striking Fault.
Tectonic:	Belt Basin
Alteration processes:	Hydrothermal Bleaching Is Common Within The District And Has Been Used As A Guide To Ore Deposits.

References

MRDS	D003834
DEP	10010249
Reference	{Analytical Data:: SRC.REF: CALKINS, F. C. AND JONES, E. L. JR., 1914 , US GEOLOGICAL SURVEY BULL. 540 , P. 191 .}{Deposit:: YOUNG, F. M., CROWLEY, F. A., AND SAHINEN, U. M., 1962 , MARKETING PROBLEMS OF SMALL BUSINESS ENTERPRISES ENGAGED IN LEAD AND ZINC MINING: MONTANA BUREAU OF MINES AND GEOLOGY BULL. 30 , P. 31 .}{Deposit:: CALKINS, F. C. AND JONES, E. L. JR., 1914 , ECONOMIC GEOLOGY OF THE REGION AROUND MULLAN, IDAHO AND SALTESE, MONTANA: US GEOLOGICAL SURVEY BULL. 540 , P. 191 , PL. 3 .}{Deposit:: WALLACE, R. E. AND HOSTERMAN, J. W., 1956 , RECONNAISANCE GEOLOGY OF WESTERN MINERAL COUNTY: US GEOLOGICAL SURVEY BULL. 1027-M, PP. 588 , 601 .}{Deposit:: LAWSON, D. C., 1972 : DIRECTORY OF MINING ENTERPRISES FOR 1971 : MONTANA BUREAU OF MINES AND GEOLOGY BULL. 86 , P. 14 .}
Reporter	Rojstaczer, Stuart A.