Mine detail: Mother Lode Mine

Previously called 'PoormanBalm Creek Mines'

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Location

Lat / long:

44.9168, -117.47463

Resource(B)

Primary:	Copper, Gold, Silver
Tertiary:	Barium-Barite
Ore:	Chalcopyrite, Chrysocolla, Gold, Malachite, Pyrite
Gangue:	Ankerite, Calcite, Chalcedony
Orebody form:	LOZENGE
Discovery year:	1900

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1935-1938
First production started:	1935

Geology

Host rock:	Clover Creek Greenstone;Clover Creek Greenstone;Clover Creek Greenstone;Clover Creek Greenstone;Clover Creek Greenstone;Clover Creek Greenstone;Clover Creek Greenstone
Host type:	Keratophyre
Associated type:	Diorite
Structure:	Ne Trending Blue Mountains Uplift, Fault Terminates Ore Body On South And With Depth: Strike N 70 Deg W, Dip Steeply S
Tectonic:	Geosyncline
Alteration processes:	Most Of The Material Is Silicified; Feldspars Are Sericitized

References

MRDS	W002485
DEP	10069095
Reference	{Deposit:: GILLULLY, J., 1933, COPPER DEPOSITS NEAR KEATING, OREGON: U.S.G.S. BULLETIN 830-A, 64 P.}{Deposit:: BROOKS, H. C., AND RAMP, L., 1968, GOLD AND SILVER IN OREGON: ORE. DEPT. GEOL. AND MIN. IND. BULL. 61, P. 93, 98-99}{Deposit:: HULL, D., 1976, POORMAN AND BALM CREEK MINES: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES SUMMARY REPORT.}{Production:: BROOKS AND RAMP, 1968, P. 99}
Reporter	Reeves, James R., Bradley, Robin (Walker, George W.), Gray, Jerry J.