Mine detail: Boren Gulch Group

Previously called ''

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Location

Lat / long:

37.42168, -108.07926

Resource(M)

Primary:	Gold, Silver
Secondary:	Copper, Lead, Zinc
Ore:	Chalcopyrite, Galena, Sphalerite
Gangue:	Barite, Quartz

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
Last production ended:	1920

Geology

Host rock:	Cutler Formation
Host type:	Monzonite,Mudstone,Shale,Sandstone
Associated rock:	Porphyritic Rocks--Diorite-Monzonite Porphyry;Nonporphyritic Rocks--Monzonite
Associated type:	Monzonite,Diorite
Structure:	San Juan Uplift, Four Corners Platform, La Plata Dome, Spiller Peak Stock
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Oxidation Of Pyrite To Limonite; Sericitization; Kaolinitization

References

MRDS	D010806
DEP	10014156
Reference	{Deposit:: ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 67-68, 97-98}{Production:: ECKEL AND OTHERS, 1949, P. 97 (AS COMPILED FROM USGS AND USBM RECORDS)}
Reporter	Schwochow, Stephen D.