Mine detail: Stanley and Brown Prospect

Previously called 'Brownsboro Clay & Quicksilver'

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Location

Lat / long:

42.45816, -122.6703

Resource(B)

Primary:	Mercury
Secondary:	Clay
Gangue:	Chalcedony, Kaolinite
Discovery year:	1902

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Little Butte Volcanic Series
Host type:	Andesite
Structure:	Shear Zone Striking N45-55w
Alteration processes:	Kaolinized Volcanics

References

MRDS	M055845
DEP	10040950
Reference	{Deposit:: BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.}{Deposit:: MERCURY IN OREGON, 1965, USBM IC 8252}{Deposit:: OREGON METAL MINES HANDBOOK, 1943, BULL. 14-C, V. 2, 200 P.}{Deposit:: WILLIAMS, H. AND COMPTON, R.R., 1944, QUICKSILVER DEPOSITS OF THE TILLER, TRAIL, AND BROWNSBORO AREAS AND OF THE PHILLIPS MINE; USGS UNPUBLISHED REPORT}
Reporter	Peterson, Jocelyn A., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.