Results: 1 - 2 of 2
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, 1968
Earth Sciences Report
… Bullpound Creek. Maps of the concentration of total anions and … characterized by lines of equal concentration which tend to be … characterized by lines of equal concentration which tend to be …