Description
Samuel Magnusson
Commodities
PrimarySilver, Lead
SecondaryCopper, Gold
TertiaryZinc
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formLENSE, WEDGE
Ore controlPorous, Coarse-Gr. Sediments Along Steep Unconformable Contact With Rhyolite
Materials
Ore mineralsChalcopyrite, Galena, Sphalerite
GangueBarite, Calcite, Pyrite
Geology
Host rockAlluvium,Sandstone · Creede Formation;Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
Associated rockRhyolite · Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
StructureSan Juan Volcanic Field; La Garita, Creede, And Bachelor Calderas, Local Normal Faulting In Volcanics Underlying Creede Fm, Between Alpha-Corsair And Bulldog Mtn. Fault Zones And Related To Subsidence/Resurgence Of Bachelor And Creede Cauldrons (Creede Graben).
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationErratic Silicification
Economic & production
Development statusPast Producer
First production1914
Last production1941
Discovery year1914
Identification
Deposit ID10012356
MRDS IDD007946
Alternate namesMonon Hill Mine
RegionNA
Data scoreB
Coordinates37.84445, -106.95812
References
EMMONS, W.H., AND LARSEN, E.S. 1923, GEOLOGY AND ORE DEPOSITS OF THE CREEDE DISTRICT, COLORADO: USGS BULL. 718, 198 P.STEVEN, T.A., AND RATTE, J.C., 1965, GEOLOGY AND STRUCTURAL CONTROL OF ORE DEPOSITION IN THE CREEDE DISTRICT, SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 487, 90 P.LINDEMANN, J.W., AND OTHERS, EDS., 1981, FIELD TRIP NOTES, CREEDE MINING DISTRICT, SAN JUAN VOLCANIC PROVINCE, COLORADO: DENVER REGIONAL EXPLORATION GEOLOGISTS SOC. GUIDEBOOKLARSEN, E.S., 1929, RECENT MINING DEVELOPMENTS IN THE CREEDE DISTRICT, COLORADO: USGS BULL. 811-B.