au.\*:("HAMMERBECK ECI")
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GEOCHEMICAL PROSPECTING FOR LEAD AND ZINC IN THE WESTERN TRANSVAAL.HAMMERBECK ECI.1971; GEOL. SURV., BULL; XXX; 1971, NUM. 0053, P. 1 A 18Miscellaneous
THE STEELPOORT PARK GRANITE, EASTERN PART OF THE BUSHVELD COMPLEX, AND THE MAGNETITITES IN THE GABBROIC COUNTRY ROCK.HAMMERBECK ECI.1970; GEOL. SOC. S. AFR., SPEC. PUBL; ZAF; 1970, NUM. 0001, P. 299 A 311Miscellaneous
INTRUSIONS OF ALKALI E ROCKS ALONG THE STEELPOORT RIVER,EASTERN BUSHVELD COMPLEX,TRANSVAAL.HAMMERBECK ECI.1965; ANN. GEOL. OPNAME; MDG; 1965, VOL. 4, P. 79 A 85Miscellaneous
INVESTIGATION OF REFRACTORY CLAY AT WESTWOOD SMALL HOLDINGS, BOKSBUR NORTHHAMMERBECK ECI.sdREPUBL. S. AFR., DEPT MINES, GEOL. SURV., BULL.; S. AFR. ,1972, NUM. 0056, P. 1 A 19Serial Issue
THE GEOLOGY OF THE USUHWANA COMPLEX AND ASSOCIATED FORMATIONS - SOUTH-EASTERN TRANSVAAL = LA GEOLOGIE DU COMPLEXE USUSHWANA ET DES FORMATIONS ASSOCIEES, PARTIE SUD-EST DU TRANSVAALHAMMERBECK ECI.1982; MEM.-REPUB. S. AFR., GEOL. SURV.; ISSN 0370-3401; ZAF; DA. 1982; NO 70; VII-119 P.; H.T. 12; BIBL. 4 P.; 14 TAB. ; TABL./ESQUISSE/ILL.Serial Issue
GEOCHEMICAL PROSPECTING FOR LEAD AND ZINC IN THE WESTERN TRANSVAALHAMMERBECK ECI.sdGEOL. SURV., BULL.; S. AFR.,1971, NUM. 0053, P. 1 A 18Serial Issue