Mine detail: Evergreen Series

Previously called 'Evergreen Lodes'

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Location

Lat / long:

47.3675, -88.07447

Resource(M)

Primary:	Copper
Secondary:	Silver
Ore:	Copper, Silver
Gangue:	Quartz, Epidote, Microcline, Adularia, Prehnite, Datolite, Hematite, Analcime, Pumpellyite-(Mg), Chlorite
Discovery year:	1848

Production

Operation type:	Underground
Development status:	Past Producer

Geology

Host rock:	Portage Lake Volcanics
Host type:	Basalt
Structure:	Syncline, Mass anticline
Alteration processes:	Silicification, pumpellitization

References

MRDS	LW00196
DEP	10310196
Reference	{Deposit:: BUTLER, R.S. AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 144, 238 P.}{Deposit:: WILSON, M.L. AND DYL, S.J., III, 1992, THE MICHIGAN COPPER COUNTRY: MINERALOGICAL RECORD, V. 23, P. 1-76.}{Production:: BUTLER AND BURBANK, 1929.}
Reporter	Woodruff, Laurel G.