 | | Journal (issue) | | net Famous Mineral Localities: The Berezovsk District, Sverdlovsk Oblast, Russia .....................quartz in the Artonvilla mine, Messina District, Limpopo Province, South Africa .........................know, we supplied a DVD on the famous Pederneira mine with the May-June issue. This DVD is a supplement...staff of the British Museum (Natural History) in South Kensington on October 1, 1957, as Assistant Scientific... and he was in constant demand as a speaker at local clubs and societies. Three of his most popular talks--delivered |  | | Journal (issue) | | 0026-4628 ‘Continued on p. 247 Articles The Outlaw mine, Nye County, Nevada ..............................J. P. Cassedanne & L. Barreto The Messina mining district, South A frica .............................Valley Road Watsonville, California 95076 The Outlaw mine has long been known as an occurrence o f rare and...benjaminite, fo r which it is the type locality. The mine has been idle fo r more than 60 years, and because...More than 30 minerals have been identified from the mine and studies continue on the sulfosalt mineralogy |  | | Journal (article/letter/editorial) | | Department of Geology, University of Natal, Durban (South Africa) (Received August 15, 1973, revision accepted...margin particularly within the Zambezi and the Limpopo belts. The distribution of the associated early...development were due to thermal highs centred on the Limpopo mobile belt and possibly the Zambezi belt. INTRODUCTION...of the international metamorphic map of southern Africa b a s e d o n t h e c o n c e p t o f m e t a m...post-Shamvaian. (4) The granites and granitic gneisses. (5) Limpopo Group metasediments. ANCIENT BASEMENT RELICS -- |  | | Journal (article/letter/editorial) | | illustrating the nature of Archean volcanismin southern Africa and elsewhereare made available for purposesof...mineralization. The Archean mineralization of southern Africa is briefly compared and contrasted with that of...the easternpart southern Africa. of Botswana, the northeasternsegment of South The purposes of this paperare...paperare, briefly,to consider Africa, and Rhodesia,the shield consistsof two crathe nature and distribution...GREENSTONE BELT LITHOLOGICAL UNITS RHODESIA/BOTSWANA SOUTH AFRICA/SWAZILAND Sedimentary unit ShamraJah Mafic-to-l'el$ic |  | | Journal (issue) | | M ontreal Mine! L L The Mineralogical Record MAY–JUNE 2020 • VOLUME 51 • NUMBER 3 • $25 & Wayne...gemgypsy@bellsouth.net MAY–JUNE 2020 Articles The Montreal mine, Iron County, Wisconsin ........................... 487 COVER: BARITE, 6.5 cm, from the Montreal mine. David and Karen DeBruin collection, ex Muscatine...cm on vesuvianite from the Crazy Sphinx mine, Helena District, Lewis and Clark County, Montana. Collected...world-class realgar specimens from the Royal Reward mine, Green River Gorge, King County, Washington. The |  | | Journal (article/letter/editorial) | | metamorphosed banded iron formations, Northern Province, South Africa Received: 4 July 1996 / Accepted: 7 January...ore would be quite unique in a South African context as South Africa is well endowed with high-grade...the largest integrated steel manufacturer in South Africa, employs a 40-year raw materials resource plan...0001, South Africa G.J. Jonck Pilot Plant, Iscor Ltd, PO Box 450, Pretoria 0001, South Africa Sishen...potential of low-grade iron ore occurrences in South Africa. This was to ensure reserves in the long term |  | | Journal (article/letter/editorial) | | Rhodesian Craton, and part of the Limpopo Mobile Belt in the south. The cratonic area includes the whole...developed in the Limpopo Mobile Belt, is imposed throughout the whole area. The Limpopo Belt cuts across...across the area in the south as a large ductile shear zone and affects rocks largely similar to those of...although anorthosites are not known outside it. The Limpopo Belt has its own style of deformation -- interference...cataclasis. Metamorphism is similar throughout Limpopo Mobile Belt and Craton, each event being recognized |  | | Journal (article/letter/editorial) | | in a sapphirine-garnet rock from the Limpopo Belt, Southern Africa W. Schreyer 1, Peter C. Horrocks 2 and...University of the Witwatersrand, Johannesburg, South Africa Abstraet. Unusually Mg-rich staurolite with...temperatures and perhaps higher pressures. The local equilibria now frozen in indicate minimum pressures...(1984) found staurolite with F = 0.58-0.60 in a talc-bearing assemblage from Victoria Land, Antarctica...Perhaps most importantly, these staurolites occur in local silica-deficient environments. The crystal chemistry |  | | Journal (article/letter/editorial) | | 960-1004 Precambrian Iron-Formations of Southern Africa N.J. BEUKES Abstract From existing information...1966) and Ierru#inous SOUTHERN Africa is definedas that part of Africa sedimentary rockslessthan 15 percentiron...percentiron. In this southof approximately16ø south-latitude and in- paper,the 15 percentboundaryis not...contentbecauseof a generallack of chemicalanalyses. South West Africa, and Mozambique. This rela(2) Iron-formationis...commonlithologic detailedstudyon iron-formation in southern Africa variety of iron-formationand consistsof chert mesoare |  | | 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...typical accessory mineral from the world famous Tsumeb mine Overleaf: Crystalline incrustations of vanadinite...suggestions and advice. Author’s Preface Southern Africa has much to offer the amateur geologist, whatever...best plan is to take local advice wherever you are. 9 In small places try the local police station first |  | | Book | | that the former part of the Territory lying to the south of the Molopo River, known as Bechuanaland or British...part of the Cape Province of the Republic of South Africa, is not included. The compiler would gratefully...Afr. Proceedings of the Geological Society of South Africa. Johannesburg. Proc.Rhod.sci.Ass. Proceedings... Leeds. S.Afr.J.Sci. South African Journal of Science. Johannesburg. South African Mining and Engineering...Engineering Journal. Johannesburg. South African Mining and Engineering Yearbook. Johannesburg. S.Afr.Min |  | Roering, C., van Reenen, D.D., Smit, C.A., Barton, J.M., de Beer, J.H., de Wit, M.J., Stettler, E.H., van Schalkwyk, J.F., Stevens, G., Pretorius, S. (1992) Tectonic model for the evolution of the Limpopo Belt. Precambrian Research, 55 (1) 539-552 doi:10.1016/0301-9268(92)90044-o | Journal (article/letter/editorial) | | Amsterdam Tectonic model for the evolution of the Limpopo Belt C. Roeringa, D.D. van Reenen a, C.A. Smit...Johannesburg2000, South Africa hEarth Science Division, C.S.I.R., P.O. Box 395, Pretoria 0001, South Africa CDepartmentof...7600, South Africa aGeological Survey of South Africa, PrivateBag X112, Pretoria 0001, South Africa (Received...1992. Tectonic model for the evolution of the Limpopo Belt. In: D.D. van Reenen, C. Roering, L.D. Ashwal...Ashwal and M.J. de Wit (Editors), The Archaean Limpopo Granulite Belt: Tectonics and Deep Crustal Processes |  | | Report (issue) | | American Corporation of South Africa for views of Wankie Colliery and the Trojan nickel mine, and to the Photographic... The Great Dyke and Satellites 24 24 42 The Limpopo Mobile Belt . Northern Marginal Zone Central Zone...Karoo 85 86 86 Page 89 Upper Karoo Sabi-Limpopo Basin Lower Karoo Upper Karoo Coalfields Karoo...near Salisbury. facing page 23 IV Trojan Nickel Mine, near Bindura. facing page 33 V The Great Dyke...Complex. VI Chrome seam in the Great Dyke, Vanad Mine. VII Lower Karoo Landscape. No. 1 Colliery, Wankie |  | | Journal (article/letter/editorial) | | isotope ratios from veins in some Archean cratons of Africa DAVID Department of Physics,* (Received K. ...ALLSOPPet al. (1962, 1968) ULRYCX et al. (1967) for South Africa. An excellent discussion dealing with the, general...possible geologic evolution of the crust in the South African (Kaapvaal) Craton as outlined by VILJ~ENand...some of the ancient cratonic areas in Southern Africa together with younger erogenic belts surrounding...schist belts found in Tanzania, Rhodesia and South Africa (Fig. 1) are discussed since these are the areas |  | | 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...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | 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 |  | | Book (volume) | | alteration of different kinds of stacking of layers, local defects, etc.). For this reason, the interpretation...Lavrion, Greece (6) and Cu-poor adamite from Ojuela mine, Mexico (7) IR spectra of acid salts (silicates...freedom per unit cell and qi and qj are deviations of local coordinates (i.e. lengths of chemical bonds and...frequencies of normal vibrations are determined by local force parameters of these bonds (see, e.g. Loghinov...Arsenato-Borates Sussexite 29 Mn2+BO2(OH) Locality: Gonzen mine, Sargans, St. Gallen, Switzerland. Description: |  | | Journal (article/letter/editorial) | | Precambrian Research 96 (1999) 263–288 Exhumation of Limpopo Central Zone granulites and dextral continent-scale...along the Palala Shear Zone, Northern Province, South Africa Mirjam Schaller a, Oliver Steiner a, Ivan Studer...southern Africa, which extends over 1000 km from central Botswana to the Soutpansberg in South Africa. The...lineament is situated between the Central Zone of the Limpopo Belt and the Kaapvaal Craton. At its main exposure...Koedoesrand Window and its role in the tectonics of the Limpopo Belt. In order to do this, structural and petrographical |  | | Journal (article/letter/editorial) | | enclosing voluminous tonalitic gneisses, which have a talc-alkaline chemistry controlled by high pressure crystal...(DEARNLEY, 1963; W~ITEY, 1975); the Messina complex, southern Africa (HOR et al., 1975; BARTON et af.,...provided some major element data for rocks from the Messina complex, while SIMMONSet a/ (1980) have analysed...modelled the major element composition of the Messina complex magma using plagioclase and olivine fractionation...reservations, it may be possible to distinguish between a talc-alkaline (i.e. WINDLEY et al., 1973) or tholeiitic |  | | Journal (article/letter/editorial) | | Products in a Sapphirine Rock of the Limpopo Belt, Southern Africa W. Schreyer and K. Abraham Institut...minimum pressure near 4 kb within this zone of the Limpopo Belt. The subsequent replacement reaction occurred...MgAl-rich rocks by one of us (W. Sch.) in southern Africa, kornerupine was recognized as a rather common...Bridge, Rhodesia, a few kilometers north of the Limpopo River. It is the western most of two open pit workings...Morrison (1972). Geologically the area belongs to the Limpopo Belt of orogeny (Nicolaysen, 1962; van Breemen |  | | Journal (issue) | | Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department, Colombia. Gail...cm, from Stak Nala, Haramosh Mountains, Skardu district, Gilgit-Baltistan, Pakistan. Zach Goodman collection;...Budd photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania. Barry & Beth Kitt collection;...Fluorite on quartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture, Hunan Province, China. The...Spodumene (variety kunzite), 9 cm, from the Urucum mine, Galiléia, Minas Gerais, Brazil. Gus & Jane Eifler |  | | Journal (article/letter/editorial) | | or amounts of the metasomatic fluids varied on a local scale. KEYWORDS: kornernpine, boron, metapelite...anorthosites of the Messina layered intrusion, Limpopo Belt, Zimbabwe, southern Africa (Schreyer and Abraham...boron-bearing, and thereby interpreted to suggest local increases in the activity of B203 (e.g. Goscombe...~.kPyrophyllite "~Bentonite ,oli.it Sepiolite ~ Talc c~ A n t h o p h y l l i t e ~r 0 Saponite Orthopyroxene...probably reflecting local variability in the activities of species including H20 and Na § Local variability in |  | | Journal (article/letter/editorial) | | Division of Soils, Adelaide, South Australia. ' 2 miles north of the Limpopo l~iver and 250-300 yards east...belonging to the Limpopo orogenic belt, which bounds tlle Rhodesian Craton to the south (ca. 2900 Myr,... Swift, 1961) and contiguous with the Messina series of the Swaziland system in the neighbouring Transvaal...the initial distribution of quartz resulted in local desilication--not of cordierite to spinel or to...in the text. Possible hydrous minerals (yoderite, talc, gedrite, Mg-staurolite) omitted, co, corundum ; |  | | Journal (article/letter/editorial) | | of ~ 2.7 Ga, equivalent to the Liberia--Limpopo events in Africa. The differentiated mafic to ultramafic...concealed b y the Arax~ rocks m the north, and in the south it is flanked by the Mantiqueira belt (Figs. 1 and...TREMOLITE-CNLORIT( SCHIST. NOIIIllO DO fllQQEL UNIT. TALC-TR(MOLIT( SCHIST AND CHLORITE SCHIST. ~ , . [~...1979a). 112 mediate lithologies are represented by talc--tremohte schist whmh, rarely, displays spinifex-like...west of the Morro do Nlquel mine, although it is also exposed in the south as a relatively small tongue |
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