Commodities
PrimaryZinc, Copper, Lead
Commodity typeM
Deposit
Deposit sizeN
Ore controlSee Comments
Materials
Ore mineralsChalcopyrite, Galena, Sphalerite
Geology
Host rockAndesite · Rawley Andesite;Gneiss And Schist
Associated rockAndesite · Rawley Andesite
StructureSawatch Range, San Juan Volcanic Field, Rio Grande Rift, Bonanza Caldera
Tectonic settingCentral Cordillera (Southern Rocky Mtns.)
AlterationEarly 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 Mineral. Later Mineralizing Stage By Alkaline Or Neutral Solutions Deposited Ore And Gangue And Caused Micaceous Alteration (Sericite And Chlorite) And Calcite, Quartz, And Pyrite.
Economic & production
Development statusOccurrence
Identification
Deposit ID10094477
MRDS IDD008219
RegionNA
Data scoreC
Coordinates38.35695, -106.07087
References
PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.MAYHEW J.D., 1969, GEOLOGY OF THE EASTERN PART OF THE BONANZA VOLCANIC FIELD, SAGUACHE COUNTY, COLORADO: COLORADO SCHOOL OF MINES M.S. THESIS T-1226.