Mine detail: Bonanza Mine

Previously called ''

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Location

Lat / long: 44.70818, -118.40994

Resource(M)

Primary: Gold, Silver
Ore: Chalcopyrite, Gold, Pyrite
Gangue: Quartz
Orebody form: TABULAR
Discovery year: 1877

Production

Operation type: Unknown
Deposit type: Vein
Production size: Small
Development status: Past Producer
First production started: 1892

Geology

Host rock:Elkhorn Ridge Argillite
Host type:Serpentinite,Argillite,Chert
Associated type:Diorite
Structure:Ne Trending Blue Mountains Uplift, Nw Shear Zones
Alteration processes:Silicification Of Argillite Near Vein

References

MRDSW002494
DEP10069101
Reference{Deposit:: LINDGREN, W., 1901, THE GOLD BELT OF THE BLUE MOUNTAINS OF OREGON: USGS 22ND. ANNUAL REPORT, P. 701}{Deposit:: PARDEE, J. T., AND HEWETT, D. F., 1914, GEOLOGY AND MINERAL RESOURCES OF THE SUMPTER QUADRANGLE: OREGON BUREAU OF MINES AND GEOL., MINERAL RESOURCES OF OREGON, V. 1, NO. 6, P. 119-122}{Deposit:: ORE. DEPT. GEOL. AND MIN. IND., 1939, OREGON METAL MINES HANDBOOK; NORTHEASTERN OREGON, EAST HALF: ORE. DEPT. GEOL. AND MIN. IND. BULL. 14-A, P. 52-53}{Deposit:: BROOKS, H. C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON: O.D.G.M.I. BULL. 61, P. 106-107}{Deposit:: 5) PERKINS, J.M., 1976, GEOLOGY OF THE GREENHORN QUAD. AND THE NW PORTION OF THE WHITNEY QUAD.}{Deposit:: 1901 RECON LINDGREN, W: REF. 1}{Deposit:: 1914 RECON ORE. BU. MINES GEOL.: REF. 2}{Deposit:: 1939 COMPILE ORE. DEPT. GEOL. MIN. IND.: REF. 3}
ReporterReeves, James R., Bradley, Robin (Walker, George W.), Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.