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| THE ALLUVIAL DIAMOND DEPOSITS OF THE LOWER VAAL RIVER BETWEEN BARKLY WEST AND THE VAAL-HARTS CONFLUENCE...CONFLUENCE IN THE NORTHERN CAPE PROVINCE, SOUTH AFRICA By FABRICE GILBERT MATHEYS B.Sc. (Hons) Thesis snbmitted...The between diamond deposits along the Vaal River, alluvial Barkly West and the Vaal-Harts confluence...Older Gravels and the Younger Gravels. These rest on a basement of Ventersdorp Supergroup andesites and...acquiring an understanding of responsible diamonds. On A study of the sedimentology of the Younger Gravels |
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| diamondiferous sediments on the farm Nooitgedacht (66), Kimberley South Africa M.C.J. de Wit De Beers Consolidated...Consolidated Mines Ltd. Africa Exploration. P.O. Box 7383, Centurion 0046, South Africa E-mail: mike.dewit@debeersgroup...2004 Geological Society of South Africa ABSTRACT Diamonds were mined on the farm Nooitgedacht (66) in...records are incomplete, at least 80 000 carats of diamond had been recovered by 1963 with an average stone...of the biggest alluvial diamond ever found in South Africa, the Venter diamond (511.25cts). The farm can |
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| Library of Congress Cataloging-in-Publication Data On file ISBN 978-1-4613-5822-0 ISBN 978-1-4615-1993-5...monographs devoted to the petrology of primary diamond-bearing rocks. It should be noted that, in common...about upper mantle xenoliths or exploration for diamond. The principal objective of this work is to present...present a revised terminology for primary diamond-bearing rocks. To this end orangeites are recognized...discovery of these rocks in the Orange Free State of South Africa. The name is not a new one: In 1928, Percy Wagner |
 | | Report (issue) |
| Fossil Mammals of Africa AN ANNOTATED BIBLIOGRAPHY OF THE FOSSIL MAMMALS OF AFRICA ( A. 1742 -1950...Mammals of No. Africa 8 AN ANNOTATED BIBLIOGRAPHY OF THE FOSSIL MAMMALS OF AFRICA ( 1742 -1950...FOSSIL No. i. The Miocene Hominoidea of East Africa. W. E. Le Gros Clark and L. S. B. Leakey. Price...1951. 117 pp., 9 pis. £1 5 s No. 2. MAMMALS OF AFRICA The - Fauna Pleistocene of Two Blue Nile...15s. No. 4 Miocene Anthracotheriidae from East Africa. Maclnnes. 24 pp., 4 pis. 1951. Price 12s. 6d. |
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| Springer-Verlag 1994 Quaternary kimberlitic volcanism on the Tanzania Craton J.B. Dawson Department of Geology...Geology and Geophysics, University of Edinburgh, West Mains Road, Edinburgh EH9 3JW, Scotland, U K Received...the Igwisi Hills are the youngest magmatic rocks on the Tanzania Craton. They consist of small xenoliths...calcite-rich kimberlites of the Benfontein Sills, South Africa. As such, the Igwisi Hills are the youngest...110 km. Introduction Quaternary magmatism in northern Tanzania is mainly confined to the immediate vicinity |
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| and Dave Eggler are thanked for useful comments on and reviews of Chapters 3, 6, 7, and 8, respectively...logistical assistance in connection with my research on kimberlites and alkaline rocks, which has led to... . . . . . . . . . . . . . . . Tectonic Controls on the Distribution of Kimberlites ................................................. 126 5.3.3.2. West Africa ........................................... 126...11. 6.12. 6.13. 6.14. 6.15. 6.6.3 .1. Diverse South African Kimberlites (Dawson and Smith 1975, Smith |
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| R*CKWOOD** Division of Geological Sciences, University of Cape Town 12,eceived November 4, 1969 Abstract. Brief...in the kimberlites of Lesotho, Rhodesia, Sauth Africa, and Tanzania. Six new mineral assemblages, which...Johannesburg, South Ah'ica. ** Present address: School of Applied Geology, University of New South Wales, Kensington...(1932) as it is still the most exhaustive treatise on the subject. Subsequent studies such as those of...University of Cape Town has been engaged on further petrological and geochemical research on these and additional |
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| supersaturation; therefore, CSD shapes often yield information on the initial conditions of crystallization. M. EBERT...Darmstadt, Germany The effects of aerosol particles on heterogeneous ice formation are currently insufficiently...pseudo-hexagonal plates, and the 25 nm hematite crystals have diamond and rectangular shapes before dissolution. The...bacterial community composition in lakes with focus on the consequences for metal mobilization and transport...the total 16SrRNA gene we hope to shed more light on these interactions and the consequences for the environment |
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| And this in spite of the fact that the richest diamond-bearing rock in the world is a tuffaceous l•nproite...0. Moreau, and H. Judith Milledge REGIONAL AND LOCAL VARIATIONS IN THE CHARACTERISTICS SOO2IYERN AFRICAN...KIFYBERLiTES IN THE COLORADO-WYC•ING STATE mINE DISTRICT 42 M. E. McCal!um, C. D. Mabarak, and H. G.... K. J. Stracke, 59 OF KIMBEHLITES H.-M. IN SOUTH-EASteRN AUSTRALIA 71 J. Ferguson, an• L. P. Black...Black KiPzBERLIT•S IN BRAZIL: •i• INITIAL and DIAMOND C. R. Clement, REPORT D. P. Svisero, H. O. A |
 | | Book (volume) |
| Vertebrates of Africa Volume 2 ‘ a & > bs s ~ w ay Fossil Vertebrates of Africa Edited by L...for Prehistory and Palaeontology, Nairobi, East Africa ALL Ricuts RESERVED No part of this book may... PREFACE This second volume of Fossil Vertebrates of Africa ranges once again over the geological time period...the Miocene to the Pleistocene. On this occasion it includes a report on fossil fish remains from Olduvai...include reports on nonmammalian fossils such as reptilia and amphibia, as well as on avifauna. The second |
