Mine detail: Santa Rosa

Previously called ''

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Location

Lat / long:

36.41803, -117.72313

Resource(M)

Primary:	Lead, Copper
Secondary:	Silver, Zinc, Gold
Ore:	Chalcopyrite, Galena, Hemimorphite, Pyrite, Sphalerite
Gangue:	Calcite

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1910 - 1950

Geology

Host type:	Hornfels
Associated type:	Diorite,Basalt
Structure:	Fault; Inlier Of Calc - Hornfels Is Structurally A Horst, Santa Rosa Fault Bounds It On The East And Another Steep Fault Forms The Western Boundary. Santa Rosa Fault Strikes North, Dips 80 E, Its A Normal Fault, East Block Downdropped About 250 Ft. Most Important Faults Strike N 10 - 20 W, Dip 30 - 60 Sw.

References

MRDS	W023780
DEP	10076644
Reference	{Deposit:: HALL, W. E. AND MACKEVETT, E. M., 1958 , ECONOMIC GEOLOGY OF THE DARWIN QUADRANGLE, INYO COUNTY, CALIFORNIA; DIV. OF MINES. SPECIAL REPORT 51 , P. 53 - 54}{Production:: HALL, W. E. AND MACKEVETT, 1958 , P. 53 (SEE REF.)}
Reporter	Fraticelli, L. A. (Albers, J.)