Mine detail: Oregon Mine

Previously called ''

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Location

Lat / long:

38.29807, -106.1356

Resource(M)

Primary:	Manganese, Silver, Gold
Secondary:	Lead, Zinc
Ore:	Psilomelane, Wad
Gangue:	Barite, Fluorite, Pyrite, Quartz, Rhodochrosite

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Squirrel Gulch Latite;Eagle Gulch Latite
Host type:	Quartz Latite,Latite
Associated rock:	Squirrel Gulch Latite;Eagle Gulch Latite
Associated type:	Quartz Latite,Latite
Structure:	Sawatch Range, San Juan Volcanic Field, Rio Grande Rift, Bonanza Caldera, Bonanza Manganese Belt
Tectonic:	Central Cordillera (Southern Rocky Mtns.)
Alteration processes:	Early Barren Stage Of Alteration By Fumarolic Or Acid-Hot Spring Activity Resulted In Intense Silicification, Wallrock Replacement By Jasper And Alteration Products Hematite, Diaspore, Alunite, Barite, Zunyite, Rutile, And Kaolin Minerals. Later Mineralizing Stage By Alkaline Or Neutral Solutions Deposited Ore And Gangue And Caused Micaceous Alteration (Sericite And Chlorite) And Calcite, Quartz, And Pyrite.

References

MRDS	D008029
DEP	10012415
Reference	{Deposit:: PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.}{Deposit:: BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.}
Reporter	Schwochow, Stephen D.