Description
Andrew Johnson And Alva Adams
Commodities
PrimaryGold, Lead, Silver, Copper
TertiaryAluminum, Asbestos, Zinc
Commodity typeB
Deposit
Deposit typeVEIN
Deposit sizeS
Ore controlPOST-SUMMITVILLE-COLLAPSE FRACTURES AND CORNWALL CALDERA RING FAULT, POSSIBLY OLDER FRACTURES RELATED TO POST-PLATORO-COLLAPSE CORNWALL BLOCK RESURGENCE, AND POST-COLLAPSE CALDERA-MARGIN INTRUSION OF JASPER STOCK AND SMALL MONZONITE STOCK ON CORNWALL FAULT.
Geology
StructurePLATORO CALDERA, SUMMITVILLE CALDERA, CORNWALL FAULT, CALIFORNIA GULCH FAULT, CORNWALL BLOCK, JASPER STOCK, SAN JUAN VOLCANIC FIELD
AlterationALTERATION HAS NOT BEEN DESCRIBED BUT INCLUDES SOME HYDROTHERMAL ALTERATION ASSOCIATED WITH INTRUSION OF JASPER STOCK AND SMALL MONZONITE STOCK (LIPMAN, 1974). ZONED SOLFATARIC ALTERATION (PROPYLITIC, ARGILLIC, QUARTZ-ALUNITE) CHARACTERISTIC OF SUMMIT AND DECATUR W (STUNNER) DISTRICTS PRESENT NEAR MARBLE MTN AT NW END OF STOCK.
Economic & production
Development statusProducer
First production1870
Last production1939
Discovery year1874
Identification
Deposit ID60000372
MRDS IDD010630
Alternate namesJasper District
RegionNA
Data scoreD
Coordinates37.41782, -106.4625
References
PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHESATERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.LIPMAN, P.W., 1975, EVOLUTION OF THE PLATORO CALDERA COMPLEX AND RELATED VOLCANIC ROCKS, SOUTHESTERN SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 852.STEVEN, T.A., AND LIPMAN, P.W., 1976 CALDERAS OF THE SAN JUAN VOLCANIC FIELD, SOUTHWESTERN COLORADO: USGS PROF. PAPER 958.BIRD, W.H., 1972, MINERAL DEPOSITS OF THE SOUTHERN PORTION OF THE PLATORO CALDERA COMPLEX, SOUTHEAST SAN JUAN MOUNTAINS, COLORADO: MTN. GEOLOGIST, V. 9, NO. 4, P. 379-387.WOOLF, J.H., 1914, GEOLOGY OF THE JASPER DISTRICT, COLORADO: COLORADO SCHOOL OF MINES THESIS T-467.LIPMAN, P.W., AND STEVEN, T.A., 1970, RECONNAISSANCE GEOLOGY AND ECONOMIC SIGNIFICANCE OF THE PLATORO CALDERA, SOUTHEASTERN SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 700-C, P. C19-C29.RATTE, J.C., 1968, ALUNITE, IN MINERAL AND WATER RESOURCES OF COLORADO: US GPO, P. 155-157.SANFORD, SAMUEL, AND STONE, R.W., 1914, USEFUL MINERALS OF THE UNITED STATES: USGS BULL. 585, P. 39.