Mine detail: Missouri Girl Mine

Previously called 'Missouri Girl Deposit'

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Location

Lat / long:

37.5789, -108.17954

Resource(M)

Primary:	Copper
Ore:	Chalcocite, Malachite
Gangue:	Calcite, Limonite, Pyrite
Orebody form:	VEINLETS, LENTICULAR MASSES, DISSEMINATED
Discovery year:	1909

Production

Operation type:	Underground
Production size:	Small
Development status:	Past Producer
First production started:	1909

Geology

Host rock:	Dolores Formation, Near Base Of Formation
Host type:	Shale,Sandstone,Limestone
Associated rock:	Monzonite Porphyry
Associated type:	Monzonite,Felsic Volcanic Rock
Structure:	San Juan Uplift (San Juan Mountains), La Plata Mountains Dome, Small Ne-Trending Fault About 0.5 Mile To Northwest; Parallel Faults, Fractures
Tectonic:	Central Cordillera (Southern Rocky Mountains), Colorado Plateau
Alteration processes:	Hydrothermal Alteration, Bleaching

References

MRDS	D009280
MAS	80830080
DEP	10097847
Reference	GODDARD, E.N., 1949, COPPER DEPOSITS OF THE BEAR CREEK DISTRICT, IN ECKEL, E.B., 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 70-72, 150-152.
Reporter	Wilson, Anna B., Collins, Donna B.