Mine detail: Mariposa Adit

Previously called ''

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Location

Lat / long:

38.29779, -106.13727

Resource(M)

Primary:

Zinc, Copper, Lead

Production

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

Geology

Host rock:	Rawley Andesite;Bonanza Tuff
Host type:	Latite,Andesite
Associated rock:	Rawley Andesite;Bonanza Tuff
Associated type:	Latite,Andesite
Structure:	Sawatch Range, San Juan Volcanic Field, Rio Grande Rift, Bonanza Caldera
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	D008207
DEP	10094476
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.