Mine detail: Union-Carbonate Mine

Previously called 'Patented Claims: Union, MS 5376Carbonate, MS 5376Zach Taylor, MS 5376Fickle Goddess, MS 7330Iron Silver, MS 7330Chauncey, MS 7330Unpatented Claims: IncasToltecG. R.Drummer BoyStateParnellGreenhornBuckhornBuckhorn No. 2Diamond DyesDiamond H.Copper DollarBuckhorn Tunnel'

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Location

Lat / long:

37.69195, -108.01315

Resource(M)

Primary:	Lead, Silver, Zinc
Secondary:	Copper, Gold
Ore:	Chalcopyrite, Pyrite, Sphalerite
Gangue:	Prehnite, Quartz, Sulfur
Orebody form:	TABULAR
Discovery year:	1877

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1887
Last production ended:	1937

Geology

Host rock:	Hermosa Formation
Host type:	Shale,Sandstone,Limestone,Latite
Associated rock:	Hornblende Latite Porphyry
Associated type:	Latite
Structure:	San Juan Uplift, Paradox Basin, Rico Dome
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Oxidation Of Pb Sulfide To Carbonate; Alteration Of Pyrite; Silicification

References

MRDS	D010792
DEP	10014144
Reference	{Deposit:: MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723, P. 73-75.}{Deposit:: PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.}{Deposit:: RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 341-346}{Deposit:: CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 5376, 7330}{Production:: COLORADO DIV. MINES ANNUAL OPERATOR REPTS.}
Reporter	Schwochow, Stephen D. (Hasler, J. William)