kw.\*:("4G-3G")
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DATING GRANITES BY THE POTASSIUM-ARGON METHOD.FITCH FJ; MILLER JA.1973; GEOL. SOC. S. AFR., SPEC., PUBL.; ZAF; S. AFR.; (SYMP. GRANITES GNEISSES RELATED ROCKS; SALISBURY; 1971),1973, NUM. 0003, P. 219 A 225Miscellaneous