Mine detail: Yellowbottom-Boulder Creek Area

Previously called ''

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Location

Lat / long:

44.58898, -122.36644

Resource(M)

Primary:	Gold, Silver, Lead, Zinc
Secondary:	Copper, Molybdenum
Tertiary:	Arsenic, Antimony, Bismuth
Ore:	Chalcopyrite, Galena, Pyrite, Sphalerite
Gangue:	Calcite, Chlorite, Quartz, Sericite, Tourmaline
Orebody form:	VEINS

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Sardine Formation;Sardine Formation;Sardine Formation
Host type:	Basalt
Associated rock:	Yellowbottom Stock
Associated type:	Quartz Monzodiorite
Structure:	Sardine Syncline (Immediately To East), Shear Zones, Brecciated Zones
Tectonic:	Cascade Volcanic Arc
Alteration processes:	Ubiquitous Propylitic Alteration, Structurally Controlled Argillic-Phyllic Alteration, Linear To Cylindrical Zones Of Brecciated And Silicified Rock, And Tourmaline-Quartz Alteration Of Breccia Zones

References

MRDS	MP00131
DEP	10048538
Reference	{Analytical Data:: NICHOLSON, 1988}{Deposit:: NICHOLSON, D.K., 1988, GEOLOGY, GEOCHEMISTRY, AND MINERALIZATION OF THE YELLOWBOTTOM-BOULDER CREEK AREA, LINN COUNTY, OREGON: CORVALLIS, OREGON STATE UNIVERSITY, M.S. THESIS, 186 P}
Reporter	Peterson, Jocelyn A.