| Jaguin, Justine, Boulvais, Philippe, Poujol, Marc, Bosse, ValĆ©rie, Paquette, Jean-Louis, Vilbert, David (2013) Albitization in the Antimony Line, Murchison Greenstone Belt (Kaapvaal Craton): A geochemical and geochronological investigation. Lithos, 168. 124-143 doi:10.1016/j.lithos.2013.01.010 | Journal (article/letter/editorial) | com/locate/lithos Albitization in the Antimony Line, Murchison Greenstone Belt (Kaapvaal Craton): A geochemical...2013 Available online 14 February 2013 Keywords: Murchison Greenstone Belt Antimony Albitization Archean...Kaapvaal Craton a b s t r a c t The 3.09ā2.97 Ga Murchison Greenstone Belt is one of several Archean volcano-sedimentary...volcano-sedimentary belts within the Kaapvaal Craton in southern Africa. Among the diverse ore deposits found within the...process. Geochronology on zircon and hydrothermal monazite identiļ¬es a 2.97ā2.92 Ga magmatic crystallization | | | Book (edition) | Southern Africa a Collectorās Guide ā Rocks, Minerals and Gemstones of Southern Africa & ā - ... T ~ '' .rats en&nes L of Southern Africa A Collectorās Guide - Struik Publishers (an operating...suggestions and advice. Authorās 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...usually helpful and will know it there are any local gem clubs and how to get in touch with them. There | | | Journal (article/letter/editorial) | REE (La/YbCC = ~0.3), a feature also shared with South African emeralds occurring in Archaean host rocks...across North and South America, Europe, Asia, Africa and Australasia, and they range in inferred formation...study. Region Brazil Madagascar Madagascar South Africa Zambia Australia Class IA IA IA IA IA...emerald mine, Ambalahosy Nord Commune, Mananjary District, Vatovavy Fitovinany Black-wall reaction zones...9.4 Irondro mine, Andonabe Commune, Mananjary District, Vatovavy Fitovinany Black-wall reaction zones | | | 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 āhandbook 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; | | Jaguin, J., Poujol, M., Boulvais, P., Robb, L. J., Paquette, J. L. (2012) Metallogeny of precious and base metal mineralization in the Murchison Greenstone Belt, South Africa: indications from UāPb and PbāPb geochronology. Mineralium Deposita, 47 (7) 739-747 doi:10.1007/s00126-012-0422-7 | Journal (article/letter/editorial) | base metal mineralization in the Murchison Greenstone Belt, South Africa: indications from UāPb and PbāPb...97 Ga Murchison Greenstone Belt is an important metallotect in the northern Kaapvaal Craton (South Africa)...AuāSb and the CuāZn VMS mineralization in the Murchison Editorial handling: H. Frimmel J. Jaguin (*) :...Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, UK J. L. Paquette UMR...Kaapvaal Craton . Murchison range . South Africa Introduction The 3.09 to 2.97 Ga Murchison Greenstone Belt | | | Report (issue) | France Colombia: Gonzalo Jara of Bogota, Colombia Africa: Federico Pezzotta from the Natural History Museum...Giuliani Africa: Egypt, Nigeria, Tanzania, . . . . . . . . .52 Mozambique, Zambia, Zimbabwe, South Africa...before Columbus, emeralds were mined and traded in South America, which enjoys its own emerald tradition...zone in the MuzoĀ Coscuez-Pefias Blancas mining district. They are disseminated in black shales or albitized...carbonates and beryl, but also include bitumen, pyrite, monazite, K-feldĀ spar, epidote, zircon and apatite (Ohnenstetter | | Hazen, R. M., Golden, J., Downs, R. T., Hystad, G., Grew, E. S., Azzolini, D., Sverjensky, D. A. (2012) Mercury (Hg) mineral evolution: A mineralogical record of supercontinent assembly, changing ocean geochemistry, and the emerging terrestrial biosphere. American Mineralogist, 97 (7) 1013-1042 doi:10.2138/am.2012.3922 | Journal (article/letter/editorial) | 2005). The worldās largest Hg deposit, the AlmadĆ©n district of central Spain, is representative of concentrations...reworking of the mercury-hosting rocks of the AlmadĆ©n district (primary mineralization 427ā380 Ma) led to at...west-central California. This important mining district, including the New AlmadĆ©n mine in Santa Clara...in the literature. For example, the Hg mining district of Pike County, Arkansas, is hosted in Carboniferous...but we have been unable to find a reliable age range for the subsequent Hg mineralization. Several mercury | | | Journal (article/letter/editorial) | in mica schist matrix from the Murchison greenstone belt, South Africa; 90 Ć 75 mm. Peter Lyckberg, and... Be2AlO4. Twinned crystals from the Ratnapura district, Sri Lanka. Photograph of sample R100130 reproduced...Si8Be2Al2O36] Li2Ca3Be3(SiO4)3F2 CaBe2(PO4)2 (Pb,Ba,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28F CaBePO4(OH) (Ca,Na)2(Be...CaBe2Y2Si2O10 Silicate Gadolinite-datolite Be75 Minjiangite Ba[Be2P2O8] Phosphate Be76 Moraesite Be2(PO4)(OH)Ā·4H2O...Robinson et al. (1985) Dahl and Foland (2008) South Dakota, U.S.A.a Eirikite 1160 IlĆmaussaq complex | | Giuliani, Gaston, Groat, Lee A., Marshall, Dan, Fallick, Anthony E., Branquet, Yannick (2019) Emerald Deposits: A Review and Enhanced Classification. Minerals, 9 (2) 105 doi:10.3390/min9020105 | Journal (article/letter/editorial) | Precambrian series in Eastern Brazil, Eastern Africa, South Africa, Madagascar, India, and Australia, and younger...River; 16: Lened; 17. Tsa da Gliza. South Africa: 18. Gravelotte. Zimbabwe: 19. Sandawana, Masvingo,...spectraā. Quantitatively, Cr and V substitutions range between 25 [6] and 34,000 ppm [11] for Cr and from...[18], the Muzo mine in Colombia [1], the Mohmand district in Pakistan [1], and Eidswoll in Norway [13]....between 2 and 6 ppm, while Cr-V concentrations range between 100 and 1000 ppm. At the Coscuez emerald | | | Book (edition) | known to occur with compo itions over the entire range. The statement ā¢Ā·compare with ... ā¢ā¢ means that...Gennanium Gold Hafnium Helium Holmium Al Sb A As Ba Be Bi B Br Cd Ca C Ce Cs Cl Cr Co Cu Dy Er Eu F Gd... Meta/lurgical and Mineralogical Society o/ South Africa Journal of Chemical Phy ics Journal cif the...and Proceedings of the Royal Socief) 1 of Ne,v South Wales JPSJ Journal of rhe Physical Society of...Cand CSPG Pennskiye gubemskiye wdomo.sti (Perm district ga=elle) Pl,ilosopl,ical Maga=ine Periodico de | | | Book | Jewelry, 146 Breastplate of the High Priest, 144 South America, Beryl in the Bible, 80 Emerald and 140...Derivations of Names and Portugal, 490 Republic of South Africa, Romania, 549 601 Yugoslavia, 485 Pakistan... 445 Greenland, India, 500 Republic, South West Africa 445 Ghana, Inner Somali 443 Germany...gemstone pebbles, is also known in from Colors range from paler varieties of beryl that accompany the...highly-esteemed, Tavernier went shipped from South America to to the Far East and on to suggest | | | Report (issue) | Australia Dermot Henry Page 78 Beryl from Southern Africa Bruce Cairncross Page 84 Brazilian Beryl Luiz Menezes...It occurs in magnificent crystals and in a wide range of beautiful colors, the more common of which have...Ā·pH2 O, where R+ represents the alkali ions; n can range from O to 1; and p from 0.2 to 0.8. Feklichev (1963)...lengths of 3 meters, as have those at Tin Mountain, South Dakota. 4m: Beryl crystals have reached 4 meters...weighed almost 24 tons. 8.7m: In Jackalswater, South Africa, the largest beryl crystal recorded was 8.7 | | Salvi, Stefano, Giuliani, Gaston, ANDRIANJAKAVAH, Prosper Rakatovao, Moine, Bernard, Beziat, Didier, Fallick, Anthony (2017) Fluid Inclusion and Stable Isotope Constraints On the Formation of the Ianapera Emerald Deposit, Southern Madagascar. The Canadian Mineralogist, 55 (4) 619-650 doi:10.3749/canmin.1700017 | Journal (article/letter/editorial) | of at least part of the pegmatitic elements and local mixing with a metamorphic CO2-rich fluid, leading...at 520 8C for the distal emerald and the dDH2O range measured from the channel of the emerald samples...samples fit within the oxygen and hydrogen isotopic range of values defined for peraluminous granitic magmatism...(Martelat et al. 2000, de Wit et al. 2001) near the district of Benenitra. In the ļ¬eld, this suture zone separates...K-feldspars, plus albite, biotite, and accessory zircon, monazite, spessartine-rich garnet, corundum, and magnetite | | | Book (volume) | Papers and Discussions Volume I , I JOHANNESBURG SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY 1961... 01", ~TALLUf>iYY. Ā© Copyright 1961 by The South African Institute of Mining and Metallurgy Ext'racts...I (1v DEC 196f Printed in t!te Republic of South Africa by Hortors Limited, Johannesburg V r. 1 The...and n1anagement of the gold mining industry in South Africa -C. B. ANDERSON . . . . . . . . . page r J ... ( 2. The economy of the Union of South Africa-W. J. BusSCI-IAU 9 3. An introduction to the physical | | | Journal (article/letter/editorial) | mineralization at Gravelotte, Murchison Greenstone Belt, Northeast Transvaal, South Africa 89 J. E. NIELSON...MALLINSON: Origin and age of phosphorite from the south-central Florida Platform: Relation of phosphogenesis...E. K. PETERS:D-ā0 enriched waters of the Coast Range Mountains, northern California: Connate and ore-forming...and G. E. EXAFS spectroscopy study BROWN JR.: Local environment around gold (Ill) in aqueous chloride...expression P. M. SAGGER, J. SCHIJF. and H. J. W. DE BA-\R: Trace-metal Mediterranean distributions in | | | Journal (article/letter/editorial) | Witwatersrand, Private Bag 3, WITS 2050, Johannesburg, South Africa. E-mail: 065yyao@cosmos.wits.ac.za *Present...Witwatersrand, Private Bag 3, WITS 2050, Johannesberg, South Africa. ABSTRACT Granitoid-hosted gold deposits at...wt.% NaCl equivalent with bulk densities in the range 0.65 to 3 0.95 g/cm . The petrographic and microthermometric...Nhyiaso and Ayankyerim open pits, as well as the SOUTH AFRICAN JOURNAL OF GEOLOGY, 2000, VOLUME 103, PAGE...conducted at the University of the Witwatersrand, South Africa. Petrographic and mineralogic characteristics | | | Journal (article/letter/editorial) | value of 11.3%) situate the deposit within the range characteristic of other granite-related emerald...of ĀÆuid inclusions allows us to characterize the range of pressure-temperature conditions of the Delbegetey...situated in the Charsky region, ~100 km to the south of Semeytau E. V. GAVRILENKO ET AL. FIG. 1. Location...greisen nests reach 0.5 m across, and the veinlets range from 5 to 20 cm thick. The largest emerald crystals...present work. All crystals have a prismatic habit and range from 3.4 EMERALDS FROM KAZAKHSTAN samples was | | | Journal (article/letter/editorial) | India, Madagascar, Namibia, Nigeria, Pakistan, South Africa, Spain, Tanzania, the United States, and Zimbabwe...Canada, the Muzo mine in Colombia, the Mohmand district in Pakistan, and Norway. Beryl has a wide stability...abandoned tin deposit near Emmaville in northern New South Wales in 1890 (compositions of Australian emeralds...al., 2002). Australia's most productive emerald district is a 10 km2 area around the village of Poona in...Mariinskoye (Gavrilenko et al., 2006). 127. South Africa, Transvaal (Kovaloff, 1928). 128. Tanzania (Gavrilenko | | | 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 | and Canada 62 Miscellaneous American beryls 65 South America 65 Modem emerald and beryl jewellery Chapter...198 Mexico 199 Pakistan (West) 200 Republic of South Africa 201 Namibia 202 Sri Lanka 203 Tanzania 203 ...Emerald; Brazil, Colombia, India, Pakistan, South Africa, Tanzania, USSR, Zambia, Zimbabwe Goshenite;...aquamarine, and other coloured varieties. Colours range from the rich green of emerald, through many tints...that some Colombian emeralds were shipped from South America to Spanish colonies in the Philippines and | | | Book | and Canada 62 Miscellaneous American beryls 65 South America 65 Modern emerald and beryl jewellery Chapter...Mexico 199 Pakistan (West) 198 200 Republic of South Africa Namibia 202 Sri Lanka 203 Tanzania 203 201...Emerald; Brazil, Colombia, India, Pakistan, South Africa, Tanzania, USSR, Zambia, Zimbabwe Goshenite;...aquamarine, and other coloured varieties. Colours range from the rich green of emerald, through many tints...that some Colombian emeralds were shipped from South America to Spanish colonies in the Philippines and | | | Journal (article/letter/editorial) | Witwatersrand, Private Bag 3, WITS 2050, Johannesburg, South Africa P. J. MURPHY,** Raman-Luminescence Laboratory...Witwatersrand, Private Bag 3, WITS 2050, Johannesburg, South Africa AND L. J. ROBB* Department of Geology, University...Witwatersrand, Private Bag 3, WITS 2050, Johannesburg, South Africa Abstract Fluid inclusions in vein quartz from...NaCl equiv. Their bulk densities fall in a major range from 0.62 to 1.11 g/cm3. Type 2 inclusions show...Witwatersrand, Private Bag 3, WITS 2050, Johannesburg, South Africa. **Present address: Centre for Earth and Environmental | | | Report (issue) | INrr~~Rl()R ā¢ IJ Rlā:1\ lJ lT () Iā~ l\11 N lā:s AFRICA *Algiers Tunis ā¢ NISIA Tripoli Cairo* ALGERIA...Windhoek* Gaborone * Pretoria * Mbabane REPUBLIC OF SOUTH AFRIC1' \ Maputo * LESOTHO MAURITIUS (J Port... MINERALS YEARBOOK MINERAL INDUSTRIES OF r, AFRICA U.S. DEPARTMENT OF THE INTERIOR BUREAU OF MINES...reports and one world overview: Mineral Industries of Africa, Mineral Industries of Asia and the Pacific, Mineral...137 Sierra Leone . . . . . . . . . . . . . 141 South Africa . . . . . . . . . . . . . 145 Sudan . . . . | | | Journal (article/letter/editorial) | Delineated sites where one or more metals form anomalous local, usually highly geochemically concentrated accumulations...in the world ocean interpreted as a single VMS district. What both groupings of natural metal occurrences...crustal contents of elements. The magnitude of local metal accumulation and also the intensity of the...(ore clusters, fields, districts, belts, etc.) are local geochemical accumulations of metals that have been...quantified and compared in the present study are local accumulations of a single metal. Although most listed | | | Book | Bahrain Greece Ian Graham The University of New South Wales Australia Editorial Ofļ¬ce MDPI St. Alban-Anlage...Title. Journal Name Year, Article Number, Page Range. ISBN 978-3-03928-076-6 (Pbk) ISBN 978-3-03928-077-3...Rocks within Meta-Ultramaļ¬tes of Ilmen Mountains, South Urals of Russia: Evidence from Mineralogy, Geochemistry...Hofmeister Corundum Anorthosites-Kyshtymites from the South Urals, Russia: A Combined Mineralogical, Geochemical...Earth and Environmental Sciences, University of New South Wales Sydney, Sydney, NSW, Australia, and a Distinguished |
|