TY - GEN AU - Wanless,R.K. AU - Loveridge,W D. ED - Geological Survey of Canada, ED - Dept. of Energy, Mines and Resources TI - Rubidium-strontium isochron age studies, report 1 U1 - 551.7 23 PY - 1972/// CY - Ottawa PB - Geological Survey of Canada KW - Geology, Stratigraphic KW - Canada KW - Rubidium-strontium dating KW - Precambrian Geologic Period KW - Rocks KW - Analysis N1 - Catalogue No. : M44-72-23; Includes bibliographical references : p.61-66 ER -