Mine detail: Western World

Previously called 'Dempsey Ranch Prospect Late 180
*'

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Location

Lat / long:

39.17489, -121.29271

Resource(M)

Primary:	Copper, Silver, Gold, Zinc
Ore:	Chalcopyrite, Pyrite, Sphalerite, Tetrahedrite
Orebody form:	LENSE
Discovery year:	1973

Production

Operation type:	Unknown
Deposit type:	Stratabound Exhalative
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Smartville Complex
Host type:	Metavolcanic Rock
Structure:	Isoclinally Folded And Faulted Metamorphic Belt Whose Bedding, Foliations And Major Structural Features Generally Trend Northwest And Dip Steeply To The East.
Tectonic:	Magmatic Arc
Alteration processes:	Chloritic

References

MRDS	MP90021
DEP	10048795
Reference	{Deposit:: TAYLOR, GARY C ., 1990, MINERAL LAND CLASSIFICATION OF THE WESTERN WORLD MINING COMPANY COPPER-ZINC DEPOSITS NEAR SMARTVILLE, YUBA COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY OPEN FILE REPORT 90-1, 22 P.}{Deposit:: AMERICAN MINES HANDBOOK, 1994}{Production:: TAYLOR, 1990}
Reporter	Sachiko Tanikawa