Commodities
PrimaryLead, Copper
Commodity typeM
Deposit
Deposit sizeN
Ore controlSee Comments
Materials
Ore mineralsGalena, Tennantite
Geology
Host rockAndesite · Rawley Andesite
Associated rockAndesite · Rawley Andesite
StructureBonanza Caldera, Sawatch Range, San Juan Volcanic Field, Rio Grande Rift
Tectonic settingCental 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 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.
Economic & production
Development statusOccurrence
Identification
Deposit ID10012560
MRDS IDD008239
Alternate namesMerrimac and May Queen Claims
RegionNA
Data scoreB
Coordinates38.32973, -106.13282
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.