Mine detail: Telluride District

Previously called 'Upper San Miguel District'

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Location

Lat / long:

37.9169, -107.80064

Resource(M)

Primary:	Copper, Gold, Zinc, Silver, Lead
Discovery year:	1875

Production

Operation type:	Unknown
Deposit type:	HYDROTHERMAL VEIN
Production size:	Large
Development status:	Producer

Geology

Structure:	NORTHWEST-TRENDING SWARM OF DIKES, FISSURES, AND VEINS RADIATING FROM THE SILVERTON CALDERA FORMING A BELT OF FRACTURE ZONES, RING FAULTS AND DIKES, CONE SHEETS, AND RADIAL DIKE SWARMS., PARADOX BASIN OF SOUTHEASTERN UTAH AND SOUTHWESTERN COLORADO (INTRACRATONIC BASIN) TRENDING NORTHWEST-SOUTHEAST ELONGATE STRUCTURE.
Alteration processes:	VOLCANIC ROCKS ARE PROPYLITICALLY ALTERED; EPIDOTE, CALCITE, CHLORITE, PYRITE SERTICITIC, ARGILLIC, CALC-SILICATE ALTERATION NEAR VEINS; QUARTZ-PYRITE-SERICITE, KAOLINITE, EPIDOTE-RICH CALC-SILICATE SKARNS

References

MRDS	MP90006
DEP	60001023
Reference	{Deposit:: MOSIER, D.L., MENZIE, W.D., AND KLEINHAMPL, F.J., 1986, GEOLOGIC AND GRADE-TONNAGE INFORMATION ON TERTIARY EPITHERMAL PRECIOUS- AND BASE-METAL VEIN DISTRICTS ASSOCIATED WITH VOLCANIC ROCKS: U.S. GEOLOGICAL SURVEY BULLETIN 1666, 39 P.}{Deposit:: KOSCHMANN, A.H., AND BERGENDAHL, M.H., 1968, PRINCIPAL GOLD-PRODUCING DISTRICTS OF THE UNITED STATES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 610, 283 P.}{Deposit:: FISHER, F.S., 1990, GOLD DEPOSITS IN THE SNEFFELS-TELLURIDE AND CAMP BIRD MINING DISTRICTS, SAN JUAN MOUNTAINS, COLORADO, IN SHAWE, D.R., ASHLEY, R.P., AND CARTER, L.M.H., EDS., GOLD-BEARING POLYMETALLIC VEINS AND REPLACEMENT DEPOSITS PART II: U.S. GEOLOGICAL SURVEY BULLETIN 1857-F, P. F12,F18.}{Deposit:: FRIEDMAN, JULES D., AND HELER, JOAN S., TECTONIC TRENDS OF THE NORTHERN PART OF THE PARADOX BASIN, SOUTHEASTER UTAH AND SOUTHWESTERN COLORADO, AS DERIVED FROM LANDSAT MULTISPECTRAL SCANNER IMAGING AND GEOPHYSICAL AND GEOOGIC MAPPING: US. GEOLOGICAL SURVEY BULLETIN 200-C,D, 40 P.}{Deposit:: BARTOS, PAUL J., 1993, COMPARISON OF GOLD-RICH AND GOLD-POOR QUARTZ-BASE METAL VEINS: SOCIETY OF ECONOMIC GEOLOGISTS NEWSLETTER, NO. 15, 7 P.}