Commodities
PrimarySilver, Gold, Copper, Lead
SecondaryZinc
TertiaryMolybdenum
Commodity typeM
Deposit
Deposit sizeN
Ore controlPlugs And Radiating Dikes From Precaldera Volcano
Materials
Ore mineralsChalcopyrite, Molybdenite, Pyrite, Sphalerite
Geology
Host rockMonzonite,Rhyolite,Rhyodacite,Andesite
Associated rockMonzonite,Rhyolite,Rhyodacite,Quartz Latite,Andesite · Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Monzonite And Monzonite Porphyry);Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Rhyolite Porphyry);Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Andesite And Rhyodacite Porphyries);Early Intermediate-Composition Lavas And Related Rocks--Cone Breccias And Lava Flows
StructureSan Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Larson Volcano
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusOccurrence
Identification
Deposit ID10094702
MRDS IDD011578
Alternate namesLarson Center
RegionNA
Data scoreB
Coordinates38.07861, -107.31035
References
LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.HON, KEN, AND MEHNERT, H.H., 1983, COMPILATION OF REVISED AGES OF VOLCANIC UNITS IN THE SAN JUAN MOUNTAINS, COLORADO--RECALCULATED K-AR AGE DETERMINATIONS USING IUGS CONSTANTS: USGS OPEN-FILE REPT. OFR-83-668.LIPMAN, P.W., AND OTHERS, 1973, REVISED VOLCANIC HISTORY OF THE SAN JUAN, UNCOMPAHGRE, SILVERTON, AND LAKE CITY CALDERAS IN THE WESTERN SAN JUAN MOUNTAINS: USGS JOUR. RESEARCH, V. 1, NO. 6, P. 627-642.LIPMAN, P.W., AND OTHERS, 1976, MULTIPLE AGES OF MID-TERTIARY MINERALIZATION AND ALTERATION IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 71, NO. 3, P. 571-588.STEVEN, T.A., AND LIPMAN, P.W., 1976, CALDERAS OF THE SAN JUAN VOLCANIC FIELD, SOUTHWESTERN COLORADO: USGS PROF. PAPER 958, P. 10-16.STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLO RADO: USGS BULL. 1391-E, P. 36, 83-85, PLS. 1, 3.WORCESTER, P.G., 1919, MOLYBDENUM INDUSTRY: CGS BULL. 14, P. 67.