 | Fairey, Brenton J., Timmerman, Martin J., Sudo, Masafumi, Tsikos, Harilaos (2019) The Role of Hydrothermal Activity in the Formation of Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa. Minerals, 9 (7) 408 doi:10.3390/min9070408 | Journal (article/letter/editorial) | | Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa Brenton...Geology, Rhodes University, Grahamstown 6139, South Africa Correspondence: h.tsikos@ru.ac.za Current address:...Abstract: The Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented one...of the largest sources of manganese ore worldwide. Two belts of manganese ore deposits have been distinguished...Western Belt of ferruginous manganese ores and the Eastern Belt of siliceous manganese ores. Prevailing models |  | | Journal (article/letter/editorial) | | Geology, RAU, PO Box 524, Auckland Park 2006, South Africa 3GeoForschungsZentrum Potsdam. Telegrafenberg...4Medkim 2, Du Toitspan Road, Kimberley 8301, South Africa DOI 10.1179/037174503225001820 1 2 The determination...of the Ongeluk Formation in the Northern Cape Province of South Africa. These are very similar in appearance...overlain by Superior-type banded iron formations, manganese formations and shallow marine dolostones. Together...for Proterozoic sediment-hosted ore deposits in Northern Australia S. D. Golding1, M. G. M. Painter2, I |  | | Journal (article/letter/editorial) | | Amsterdam [EW] Chemical fluxes and origin of a manganese carbonate-oxidesilicate deposit in bedded chert... J.N., 1992. Chemical fluxes and origin of a manganese carbonate-oxidesilicate deposit in bedded chert...in ophiolitic and orogenic zones. The Buckeye manganese mine in the Franciscan Complex of the California...taneyamalite ), chlorite, quartz (metachert) and aegirine-augite. The Mn-rich protoliths have high Mn/ Fe combined...Introduction Much recent literature on metasedimentary manganese deposits that are associated with Correspondence |  | | Journal (article/letter/editorial) | | this diagram, a Ca admixture expands the stability field of rhodonite toward higher oxygen fugacity values...their stability fields (Fig. 1). The stability field of the tephroite and braunite assemblage is a narrow...a very narrow range of oxygen fugacity, in the field constrained by reaction lines (5) and (6) (Fig....quartz. This sector also includes a wedge-shaped field between lines 5 and 6, which contains neither braunite...tephroite. The sectors overlap within a very narrow field (between lines 7 and 8), which has a positive slope |  | B HN, B., OKRUSCH, M., WOERMANN, E., LEHNERT, K., HOERNES, S. (1995) Metamorphic Evolution of Neoproterozoic Manganese Formations and their Country Rocks at Otjosondu, Namibia. Journal of Petrology, 36 (2) 463-496 doi:10.1093/petrology/36.2.463 | Journal (article/letter/editorial) | | eliminate a prominent mass exchange even on a The manganese formations are embedded in iron formations small...during cooling. The uplift path of the In pure manganese ores the critical assemblage brau- sequence can...manganoan aegirine-augite, tion of this high-T-low-P metamorphic belt conforms with the aegirine, Ba—K—Nafeldspars...conditions of 660-700°C at esti- liding with the Kalahari Craton during the Pan-African oromated pressures...partial melts from siliciclastic strata within the manganese KEY WORD& manganiferous sediments; Damara Orogeny; |  | | Journal (article/letter/editorial) | | 置換した組成を持つ tweddillite が Kalahari manganese field, Republic of South Africa から報告された (Armbruster et al...braunite + hollandite + hematite + piemontite + aegirine−augite + richterite + muscovite + albite + quartz...タイプから形成される (宮久，1969; 皆川， 1992)。さらにこれらの鉱石は aegirine や aegirine−augite ( 石田，1989; 深沢，1990)，strontiopiemontite...10.34(2)A で あ っ た。 Armbruster et al. (2002) による Kalahari 産 tweddillite の格子 ゜, b = 5.698(4)A ゜, c = 10.310(5)A...Mn3+−silicate minerals from the Kalahari manganese fields, South Africa. Mineral. Mag., 66, 137−150. Bonazzi |  | | Book (volume) | | Pigeonite inverted to orthopyroxene with exsolved augite lamellae / /(00.1) of original monoclinic Ca-poor...orthopyroxene with exsolved augite .lamellae //(001) and a smaller number of exsolved augite lamellae //(100)....anorthosite, Labrador. Crossed polars x60. E. Zoned aegirine-augite, analcite syenite segregation in analcite dolerite...States of America by Halsted Press, a Division of John Wiley & Sons, Inc. New York First Edition © W. A...Pigeonite 162 Calcium Pyroxenes Diopside-Hedenbergite Augite Fassaite J ohannsenite 198 294 399 415 Calcium-Sodium |  | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries...Crescent), Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor:...Pretoria, South Africa Dr Lynnette Greyling Department of Geological Sciences University of Cape Town Private...Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot be |  | | Book | | China Portugal Republic of Macedonia Republic of South Africa Romania Russia Slovakia Spain Sweden Switzerland...socialite syenite. Other associated minerals are: aegirine, eudialyte, mangan-neptunite, polylithionite,...nepheline, sodalite, potassium feldspar, arfvedsonite, aegirine, cancrisilite, makatite, grumantite, lorenzenite...sodalite, nepheline, potassium feldspar, pectolite, aegirine, shcherbakovite, tinaksite, magnesium astrophyllite...)s(OH) 2 ·1.SH2 O Locality: T he Kamoto East mine, District ofKolwezi, southern Shaba, Zafre (Lat. 10°46' |  | | Book | | talc vug in 1997, is 1.7 cm long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...which they called the Bentley Lake Road occurrence, south of Bancroft. Sharp, flattened rhombohedral ilmenite...Girardville, itself 40 km northwest of Lac Saint-Jean in south-central Quebec, very large and sharp ilmenite Cl)...measuring 3 x 3 cm perched on prismatic black aegirine crystals, is in the Gilles Haineault collection |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | with Illustrations by ERIC DOWTY SHAPE SOFTWARE JOHN WILEY & SONS, INC. NEW YORK - CHICHESTER - WEINHEIM...printed on acid-free paper. Copyright ©1997 by John Wiley & Sons, Inc. All rights reserved. Published...should be addressed to the Permissions Department, John Wiley & Sons, Inc., 605 Third Avenue, New York,...(1844) and all but one other have been published by John Wiley. The System was the first book Wiley (then...Asselborn, M.D.: Montrevel-en-Bresse, Ain, France. F. John Barlow: Appleton, Wisconsin. Peter Bayliss: Mineralogy |  | | Journal (issue) | | Los Angeles, CA Librarian Curtis P. Schuh Founder John Sampson White Editing, advertising 4631 Paseo Tubutama...barite crystals from the Elandsrand gold mine, South A fr ic a ........................................Delores La Beau Lynn & Francis Mason Jan & Bob Mehney John Pierce Lucy Reeves Pete & Ruth Rittersdorf Dana...Issue v.9/#3 Kalahari rhodochrosite, Benitoite, Gold L.A. County Paterson (NJ), Brumado district Museum, Himalaya...Axinites (CA). El Dragon mine (Bolivia), Silver District (AZ), Goldschmidt $10 v.21/#3 American Amethyst |  | | Book | | No. 7 ) ; and “Genesis of Precambrian Iron and Manganese Deposits”, published by UNESCO (Earth Sciences...of Canada, and of the Transvaal Supergroup of South Africa, are syntheses considerably superior t o any...University, Auckland Park, PO 524, Johannesburg 2000, South Africa. J.A. BUNTING Exploration Department, BHP...Australia. E.C. PERRY, J R . Department of Geology, Northern Illinois University, De Kalb, Illinois 60115,...DEPOSITIONAL BASIN O F THE TRANSVAAL SUPERGROUP. SOUTH AFRICA N.J. Beukes Introduction . . . . . . . . . |  | | Journal (issue) | | diamonds and in some natural green diamonds from the South African gold mines (Raal, 1969). Brief gemmological...large amounts of hydrogen, since it generally shows Cape lines at about 415 and 478 nm, common in all Type...Emmanuel Fritsch Fig. 6. (c) Observation in dark-field show that the grey colour zone seen in (a) c o r...which in this case fluoresces blue. Photomicrographs John Koivuia J. Gemm., 1993, 23, 8 which diamonds...The dispersion staining analytical system of the Cape series increase in value system Without doubt, the |  | | Book | | Germany Maarten J. de Wit, Port Elizabeth, South Africa François M. Roure, Rueil-Malmaison, France ...borders of Namibia and South Africa. They were split up in the Mesozoic during the south Atlantic Ocean opening”...Ortelius was the first to recognize the match of the South American and African Atlantic margins (Ortelius...translated to ‘if comparisons are made between Asia, Africa and Europe, it is clear that different areas in...Kontinente und Ozeane, Alfred Wegener considered South America, Africa, India and Australia as the main parts of |  | | Book (edition) | | for all amateur mineralogists and students in the field. Jacket photo: (Top) sulfur, Sicily, 14cm; (top...(lower /eft) rnodochrosite, N’Chwaning mine, South Africa; (lower left, center) wulfenite, Red Cloud mine...MEMORY OF 2. HELEN KEMPNER < i FROM ye = JOHN & ELAINE WOODARD oe le sy n-- alor anima ...England Thomas Nelson Australia 102 Dodds Street South Melbourne, Victoria 3205, Australia Nelson Canada...Nancy Smith, preparation and entry data for Groen John and , Chapman Gary Caballero, Craig ous amount of | | | Book (edition) | | for all amateur mineralogists and students in the field. Jacket photo: (Top) sulfur, Sicily, 14 cm; (top... Encyclopedia of Minerals HELEN KEMPNER FRCM JOHN & ElAINE WOODARD . . . N CYCL·OPEDIA OF INERALS...England Thomas Nelson Australia 102 Dodds Street South Melbourne, Victoria 3205, Australia Nelson Canada...Carey Kucera, Gary Caballero, Craig Chapman, and John Groen for data entry and preparation of the final...Herbert Obodda IK Irwin Kennedy JB F. John Barlow JF James Fowler JH John Holfert JL Jack Lowell JP Joe Pfeifer |  | | Journal (issue) | | Harold and Erica Van Pelt Los Angeles, CA Founder John Sampson White European Correspondent Michael P....Leavitt Recent discoveries from the Wessels mine, South Africa ............365 by J. Gutzmer & B. Cairncross...resort from 1852 to the 1920’s, is located in northern Sonoma County about 145 km north of San Fran...the only steam field outside of Italy which produces dry steam. It is also the first field to produce electrical...as if 339 Figure 1. View of The Geysers steam field in 1963, looking east. Photo courtesy of Pacific |  | | Book | | Corporation of South Africa, the Chair of Economic Geology at Rhodes University, South Africa, and since...appointments at the Astrobiology Centre, University of New South Wales, Sydney, and the China University of Geosciences...which has included work in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific...their hospitality and support for the numerous field trips in China and their patience with the idiosyncrasies...support, even when faced with harsh conditions in the field, abroad and in outback Australia. ix Contents |  | | Book | | case of the island of Laven in the Langesundfjord District of Norway. Interestingly, and in contrast to its...1981 to the present) for organizing and managing field trips to the quarry. We are very grateful to the...[Delphinapterus leucas] vertebrae have been discovered on the south side of the mountain (radiocarbon dated at 9470...Yamaska to the east, and Mont Saint-Gregoire to the south in the distance, all members of the Monteregian...companion in North America, John Guillemard, an English naturalist. John Lewis Guillemard (1754 - 1844) |  | | Book | | Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo by Brian Boyle. Courtesy...(flatland), Old High German and Old English feld (field) to feldspar. — Generalized scheme of language...litharge aug-a, to shine Gk. auge, light ray augite bhel, to thrive, bloom Gk. phyllon, leaf pyrophylilite...Hendrik van Prehn, who brought the mineral from the Cape of Good Hope. This was the first mineral named after...néche, Sadne-et-Loire, France, or annite, after Cape anionic radical. Thus oxides, sulfides, carbonates |  | | Book (edition) | | rock identification, and ore mineralogy, 3rd ed. John Wiley and Sons, Hoboken, NJ. A Solutions Manual...who have adopted Minerals and Rock: Exercises from John Wiley and Sons. For classroom instruction: www...Copyright Copyright, 2007 © John Wiley & Sons, Inc. All rights reserved © 1977, by John Wiley & Sons, Inc. 1912...1959, 1971, 1977, 1985 by John Wiley & Sons, Inc. Copyright © 1993, 1999 by John Wiley & Sons, Inc. Copyright...Copyright © 2002 by John Wiley & Sons, Inc. No part of this publication may be reproduced, stored in a retrieval |  | | Book | | extensive guide to the scientific literature in this field. This book will be valuable to a wide readership...the book all the journals and monographs in the field have been consulted so that the book should stand...the magma as a whole. Diamondiferous pipes in South Africa and elsewhere contain this kind of rock. When...magnification but a microscope that can provide dark-field illumination is very useful since the inclusions...spinel seems to be common in Siberian diamonds and South African stones are rich in garnets. A structural | | | Book | | the book all the journals and monographs in the field have been consulted so that the book should stand...the magma as a whole. Diamondiferous pipes in South Africa and elsewhere contain this kind of rock. When...magnification but a microscope that can provide dark-field illumination is very useful since the inclusions...spinel seems to be common in Siberian diamonds and South African stones are rich in garnets. A structural...found in Siam rubies. Sapphires from the Pailin gem field in Kampuchea are characterized by tiny red uranium |  | | Book (edition) | | Mineralogy, and Hand Specimen Petrology, revised edition, John Wiley & Sons, Inc., New York, 405 pp. A Solutions...have adopted Minerals and Rocks: Exercises from John Wiley & Sons. For classroom instruction: A 35-mm...of CORNEMWSSHURLBUT, Jr. Harvard University JOHN WILEY & SONS, INC. Acquisitions Editor Clifford...preserving what has been written, it is a policy of John Wiley & Sons, Inc. to have books of enduring value...our best efforts to that end. Copyright © 1977, by John Wiley & Sons, Inc. Copyright, 1912, 1929, by Edward |
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