 | | Book | | APPRECIATION R. M. Shackleton THE STRUCTURAL FRAMEWORK OF AFRICA Xi 1 T. N. Clifford ARCHAEAN VULCANICITY AND...KIBARIDE AND KATANGIDE OROGENIC BELTS OF CENTRAL AFRICA 97 L. Cahen OROGENIC AND POST-OROGENIC PLUTONISM...SOUTHERN AFRICA 157 O. Von Knorring LATE PALAEOZOIC TO RECENT IGNEOUS ACTIVITY IN WEST AFRICA AND ITS...CONTENTS 12 VULCANICITY AND RirT TECTONICS IN EAST AFRICA B. C. King 13 TECTONIC AND MAGMATIC EVOLUTION...OF DYKES AND RELATED IRRUPTIVE ROCKS IN EASTERN AFRICA 337 \ J. R. Vail 17 GEOCHEMICAL VARIATIONS IN |  | | Journal (article/letter/editorial) | | APRIL 1949 KARROO DOLERITES OF THE UNION OF SOUTH AFRICA BY FREDERICK WALKER AND ARIE POLDERVAART CONTENTS...Karroo dolerites 685 Outlying areas in Southern Africa 687 Trias-Lias vulcanicity in Gondwanaland 687...System in the Union of South Africa 597 2. Distribution of Karroo System in Africa 600 3. Map and section...Distribution of analyzed dolerites in the Union of South Africa 648 26. Chemical variation of Karroo dolerites...during Trias-Lias times 688 42. Relationship of Africa and Antarctica at the close of the Karroo period |  | | Book | | t a t e d Bibliographies of Mineral Deposits in Africa, Asia (exclusive of t h e U S S R ) a n d Australasia...College of Earth and Mineral Sciences University Park, Pennsylvania 16802 P E R G A M O N PRESS OXFORD.... Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, New Y o r k 10523, U.S.A. CANADA Pergamon...him. I have tried to include all ore districts in Africa, Asia (exclusive of the U.S.S.R.)> and Australasia...incluir todos los distritos mineros conocido en Africa, Asia (con exclusion de la Union Soviética), y |
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Kruger National Park, Ehlanzeni District Municipality, Mpumalanga, South Africa