Results: 1 - 4 of 4
Nov 30, 2003
Geo-Note
… returned a maximum lead (Pb) concentration of 246 parts per … The best zinc (Zn) concentration of 75 ppm came from … (Mo) up to 56.8 ppm; the concentration of these elements is …
Dec 31, 1976
Economic Geology Report
… waters, possibly the highest concentration in any subsurface …
Jan 31, 2006
Geo-Note
Dec 31, 1997
Open File Report