TY - RPRT TI - Lead isotope variation with growth zoning in a galena crystal AU - R.S. Cannon AU - A.P. Pierce AU - M.H. Delevaux PY - 1963 DO - 10.1126/science.142.3592.574 UR - https://pubs.usgs.gov/publication/70010838 ID - 70010838 ER -