 | | Journal (article/letter/editorial) | | TECTONO-MAGMATIC MODELS OF THE NATAL METAMORPHIC PROVINCE (SOUTH AFRICA) R.J. VOORDOUW Council for Geoscience...Geoscience, PO Box 900, Pietermaritzburg, 3200, South Africa Present address: Equity Exploration Consultants... 2006, South Africa e-mail: hmrajesh@uj.ac.za © 2012 March Geological Society of South Africa ABSTRACT...arc-like terranes that form the Natal Metamorphic Province in South Africa. Integration of new and compiled...Ga granitic batholith. Introduction The Namaqua-Natal Metamorphic Province comprises a sequence of Meso- |  | Grantham, G.H., Mendonidis, P., Thomas, R.J., Satish-Kumar, M. (2012) Multiple origins of charnockite in the Mesoproterozoic Natal belt, Kwazulu-Natal, South Africa. Geoscience Frontiers, 3 (6) 755-771 doi:10.1016/j.gsf.2012.05.006 | Journal (article/letter/editorial) | | charnockite in the Mesoproterozoic Natal belt, Kwazulu-Natal, South Africa G.H. Grantham a,*, P. Mendonidis...0127, South Africa Vaal University of Technology, Andries Potgieter Boulevard, Vanderbijlpark, South Africa...2012 KEYWORDS Charnockite igneous; Metamorphic; Natal belt; Dehydration CO2 Abstract Four different varieties...different modes of formation, from the Mesoproterozoic Natal belt are described and new C isotope data presented...quarries and river sections make this part of the Natal belt a good location for observing charnockitic |  | | Journal (article/letter/editorial) | | yellow grains in white “crystalline limestone” (marble) west of North River, Essex County; similar yellow...occurring in a prospect shaft on a farm about 0.5 mile south of the Parker shaft at Franklin. There is a historical...in calc-silicate rocks of the Tarryall Springs district, Park County, and is reported from the Creswell...Hyndman, Custer County, Idaho, and the Victorio district, Luna County, New Mexico. In Arizona, chondrodite...occurs in local abundance with forsterite in altered marble at the Lakeshore mine and in the Treasure State |  | | Journal (article/letter/editorial) | | ~[• 119 DELTA_. Tke GEOLO(~ of the MXaBL~ DELTA (NATAL). ALEXANDER LOGIE DU ToIr, B.A., D.Sc., F.G...have formed part of an intrusive tongue in the marble, while the other reputed instances of 'inclusions'...Fig. 1 . - - G e o l o y i c a l mal~ o f the Marble Delta. Scale I 0 1 Sand~tour 2 Miles a.d _ ...October 4, 2015 part 2~ THE GEOLOGY OF THE M.~RBLE DELTA. 121 A summary of the general geology has appeared...an account of the economic resources of the Marble Delta. 1 While the tract is one full of problems that |  | | Journal (article/letter/editorial) | | locality the alkali granite forms a lens in the marble close to the main granite contact: as exposed this...less than 4 feet, but the whole contact with the marble is not seen. Specimens collected from the lens...Prospect, Kilchrist (x | ) . The granite at the marble contact bears green soda clinopyroxene and shows...oligoclase (An25). Accessories include magnetite, apatite, and a little orthite. Two analyses of closely...Diopside Hypersthene Wollastonite Magnetite Umenite Apatite Calcite Rest Norm (VQ1 \j y i 1 •?! 0-43 0-93 |  | Thomas, R.J., Eglington, B.M., Bowring, S.A., Retief, E.A., Walraven, F. (1993) New isotope data from a neoproterozoic porphyritic garnitoid-charnockite suite from Natal, South Africa. Precambrian Research, 62 (1) 83-101 doi:10.1016/0301-9268(93)90095-j | Journal (article/letter/editorial) | | porphyritic granitoidcharnockite suite from Natal, South Africa R.J. Thomas a, B.M. Eglington b, S.A. Bowring...Pietermaritzburg, 3200, South Africa bEMATEK, CSIR, P. 0. Box 395, Pretoria, 0001, South Africa CDepartment of...Geological Survey, P. Bag X112, Pretoria, O001, South Africa (Received April 2, 1992; accepted after revision...porphyritic granitoid-charnockite suite from Natal, South Africa. Precambrian Res., 62: 83-101. The tectonic...("megacrystic granites") from the ~ 1 Ga (Kibaran) Natal Metamorphic Province has been controversial. Isotopic |  | | Book (edition) | | Southern Africa a Collector’s Guide ■ Rocks, Minerals and Gemstones of Southern Africa & — - ... T ~ '' .rats en&nes L of Southern Africa A Collector’s Guide - Struik Publishers (an operating...Printed and bound by Interpak, Pietermaritzburg, Natal All rights reserved. No part of this publication...suggestions and advice. Author’s Preface Southern Africa has much to offer the amateur geologist, whatever...10 talc (the softest) gypsum calcite fluorspar apatite feldspar quartz topaz corundum diamond (the hardest) |  | | Journal (article/letter/editorial) | | A Precambrian fayalite granite from the south coast of Western Australia N. C. N. SI'EPHENSON & H. D...1978: A Preca,-nbrian fayalite granite from the south coa.~t of Western Australia. Lithos !!, 209-218...all regarded as Precambrian, include the Nain district, Labrador (Wheeler 1969 and earlier papers), the...1961), the Bauchi district, northern Nigeria (Oyawoye 1962, 1965), southern Natal (Simpson & Tregida...emplaced in Precambdan gneisses near Albany, on the south coast of Western Australia. The area forms part |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...reason of the great diversity and magnitude of South African mineral deposits and local mining operations...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Journal (article/letter/editorial) | | The Exogenous Contact-zone at Ben Bullen, New South Wales. By GEEMAIKE A. Department of Mineralogy...Iron ores are fairly abundant and zircons and apatite may or may not be present. Small grains of orthoclase...state. TEXT-FIG. 1.—Dactylitic calcite-dolomite Marble. x 12. Myrmekite-like intergrowths of dolomite...minute grains of dolomite. A calcite-dolomite marble is recorded from the Main Quarry. The grain-size...an assay of an admixture of dactylitic marble and brucite marble is given in the table on p. 394. (ii) |  | | Report (chapter) | | for Geosciences, P/Bag Xl12, Pretoria 0001, South Africa (e-mail: grantham@ geoscience.org.za) 2Department...Cratons and associated Grenville-agebelts in the south, with the northern block comprisingthe combined...would have separated the Kalahari Craton in the south from the Congo-Tanzanian Craton in the north, with...The paper concentrates on the areas approximately south of the equator in an African framework and does...review possible Mozambique Belt extensions in North Africa and Saudi Arabia, i.e. the northern portion of |  | | Report (volume) | | Australia, and their correlation with Antarctica South Asia within the Gondwanaland ensemble DASGUPTA,...geochronology and tectonic evolution of southern Africa 1 57 77 93 131 145 169 203 231 247 271 289...Circum-East Antarctic, N AM: North America, S AM: South America. PREFACE Australia and Gondwanaland This... 1.7 Ga, and that they have been joined to the South Australian Craton since at least c. l.5 Ga, although...Indo-Antarctic domains. The Pinjarra Orogen extends further south into ice-covered, inland Antarctica. This paper |  | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries...Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join the Struik...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor:...Hatfield Campus, University of Pretoria Pretoria, South Africa Dr Lynnette Greyling Department of Geological...Town Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot |
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