Mine detail: Bulwer Mine

Previously called 'Elkhorn-BulwerBoulaway'

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Location

Lat / long:

46.25823, -111.94254

Resource(M)

Primary:	Copper
Secondary:	Silver, Lead, Zinc
Tertiary:	Gold
Ore:	Chrysocolla, Malachite
Gangue:	Pyrite
Orebody form:	IRREGULAR

Production

Operation type:	Unknown
Deposit type:	Contact Metamorphic
Production size:	Yes
Development status:	Past Producer
First production started:	1914

Geology

Host rock:	Meagher Limestone-Limestone, Calcareous Shale
Host type:	Limestone
Associated rock:	Turnley Ridge Stock-Quartz Diorite Porphyry
Associated type:	Diorite
Structure:	North Plunging Anticline
Tectonic:	Bulwer Mine On East Limb Of Anticline Adjacent To Quartz Diorite
Alteration processes:	Brecciation, Thermal Metamorphism-Development Of Calc-Silicate Minerals-Clay And Sericite

References

MRDS	M060814
DEP	10042786
Reference	{Deposit:: KLEPPER, M.R., WEEKS, R.A., AND RUPPEL, E.T., 1957, GEOLOGY OF THE SOUTHERN ELKHORN MOUNTAINS, JEFFERSON AND BROADWATER COUNTIES, MONTANA: U.S. GEOL. PROF. PAPER 292, P. 70}{Deposit:: ROBY, R.N., ACKERMAN, W.C., FULKERSON, F.B., AND CROWLEY, F.A., 1960, MINES AND MINERAL DEPOSITS (EXCEPT FUELS) JEFFERSON COUNTY, MONTANA: MONTANA BUREAU OF MINES AND GEOL. BULL. 16, P. 58}{Production:: USGS PROF. PAPER 292, P. 70}
Reporter	Puffett, Willard P.