Mine detail: Portland Tunnel

Previously called ''

<< Back to the map

Location

Lat / long:

45.5387, -122.73397

Resource(M)

Primary:	Mercury
Gangue:	Chalcedony, Hematite

Production

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

Geology

Host rock:	Columbia River Basalt
Host type:	Basalt
Alteration processes:	Replaced By Hematite

References

MRDS	M055948
DEP	10041035
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 TABLE 26, P. 324.}{Deposit:: FREDERICK, F., 1945, STATE OF OREGON MAP SHOWING LOCATION OF QUICKSILVER DEPOSITS: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES, SCALE 1:1,000,000}
Reporter	Peterson, Jocelyn A., Ferns, Mark L. (Brooks, Howard C.), Gray, Jerry J.