 | | Journal (article/letter/editorial) | | 889 EXCURSION TO THE SOUTH ITALIAN VOLCANOES. By H. J. JOHNSTON-LAVIS, M.D., F.G.IS. (Read January...the night. A portion of the party walked to the south end of the island to watch the explosions from Vulcano...p. 126) you will notice the striking re sem- SOUTH ITALIAN VOI.CANOER. 391 the east coast of that...lla Castagna. The far gr eat er heigh t of t he south wall of t he crater , with its peculiar hump, now...and white pumice are well seen. Farther to the south, the g eologists were shown another obsidian stream |  | Kamenetsky, Vadim S., Belousova, Elena A., Giuliani, Andrea, Kamenetsky, Maya B., Goemann, Karsten, Griffin, William L. (2014) Chemical abrasion of zircon and ilmenite megacrysts in the Monastery kimberlite: Implications for the composition of kimberlite melts. Chemical Geology, 383. 76-85 doi:10.1016/j.chemgeo.2014.06.008 | Journal (article/letter/editorial) | | abrasion of zircon and ilmenite megacrysts in the Monastery kimberlite: Implications for the composition of...ilmenite and zircon megacrysts from the Monastery kimberlite (South Africa) represent a textbook example of...by alkali-bearing phases, including silicates (nepheline, kalsilite, sodalite, phlogopiteâtetraferriphlogopite)...exploration. The âclassicâ megacryst suite in the Monastery kimberlite, renowned for the size of its crystals...more abundant in the Group I Monastery kimberlite pipe in South Africa than in any other studied kimberlite |  | | Journal (issue) | | sales of pink and blue diamonds from the Argyle mine ⢠Chalcedony-epoxy composite imitation of âcandy...Paris, France New York, New York Johannesburg, South Africa Al Gilbertson Laura Otter Wuyi Wang Carlsbad...Schmetzer traces the history of the Habachtal emerald mine through several centuries up to World War I, using...inclusions. referred to as the Pyu city-states. This state structure was replaced by a line of larger kingdoms...left: 7.63, 9.77, and 7.44 ct) from the Baw Mar mine at Kyatpyin in the Mogok region of Myanmar. Photo |  | | Book | | relevant protective laws and regulations and therefore free for general use. 2132/3130-543210 To my wife,...collaboration. Much of my fieldwork in southern Africa has been carried out with the cooperation and assistance...7.3 2.8 2.9 Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . West Africa . . . . . . .... . . . . Central Africa. . . . . . . . . . . . . . . . . . . . . . . East Africa. . . . . . . . . .... . . . . . . . . . . . . . . . Southern Africa . . . . . . . . . . . . . . . . . . . . . U.S.S.R. . |  | | Journal (article/letter/editorial) | | tion from continental to oceanic crust between Africa and Madagascar (Flower, 1973); Oahu, Hawaii (Jackson...unusually K- and Ti-rich mega crysts in the Monastery kimberlite to a precursory metasomatic event....petrographic studies of these hydrous minerals to deter mine the provenance of the liquids or fluids to understand...phlogopites and richterites from xeno liths in South African kimberlites that were reported by Kuroda...Photornicrogiaph⢠of phlogopitL' 111t,gacâ˘)Mine (sample Kb-5-1-A), showing Fe-rich coae 1vith teHâ˘a- |  | | Book | | calcite, clay minerals and fragments of crustal and local host country-rock. At Lattavaram the kimberlite...Akimoto and Masaki Akaogi (Institute for Solid State Physics, University of Tokyo, Roppongi 7-22-1, Minato-ku...Iherzolite nodules in kimberlites(from Lesotho and South Africa) and were analysed for isotopic compositions...University of the Witwatersrand, Johannesburg, 2001, South Africa) Radiometric age determinations were undertaken...undertaken on 15 kimberlite occurrences in Southern Africa, emphasis being placed on a wide areal distribution |  | | Journal (article/letter/editorial) | | GOLD Department of Ceoscitmces, The Pennsylvania State University, University Park, Pennsylvania 16802...is only one carbonatite (Oka) for which one can state the average carbon isotopic composition for sovites...(Mbeya carbonatite, southwestern Tanzania, East Africa; SUWAet al., 1969) all c&rbon~tite complexes studied...connection with crater and diatreme studies in Africa and Canada. Where possible only fresh material...o&rbonatites were sampled from drill cores ; the South African kimberlites were sampled from ~derground |  | | Book | | Distribution of the main Phanerozoic volcanic provinces in Africa (after Choubert and Muret, 1975 and others) ISBN-13...:978¡3¡642¡73968¡2 1. Magmatism - Africa. 2. Geology, Structural - Africa. 3. Petrology - Africa. I. Kampunzu, A. B...relevant protective laws and regulations and therefore free for general use. lYpesetting: K +V Fotosatz, Beerfelden...Beerfelden 2132/3145-543210 - Printed on acid-free paper This book is dedicated to the authors' indulgent...Carbonatite-Nephelinite volcanism; ii) the southern Africa Karoo magmatism which is extensively dealt with |  | | Book (volume) | | ANDWILLIAMSON MINE, TANZANIA H.-M. Tsai, O. A. Meyer, 0. Moreau, and H. Judith Milledge REGIONAL AND LOCAL VARIATIONS...KIFYBERLiTES IN THE COLORADO-WYCâ˘ING STATE mINE DISTRICT 42 M. E. McCal!um, C. D. Mabarak, and H... K. J. Stracke, 59 OF KIMBEHLITES H.-M. IN SOUTH-EASteRN AUSTRALIA 71 J. Ferguson, an⢠L. P. Black...CARBONATITEERUPTIVES AT SALTPETRE 111 KOP, SUâ˘}tERLAND, SOU'iH AFRICA J. R. â˘cIver and J. Ferguson Mâ˘NERALOGY AND PETROLOGY...MINERAL CHEMISTRY OF A KIMBERLITE FROM THE PRâ˘Iâ˘IER MINE: Iâ˘iPLICATIONS FOR THE EVOLUTION OF KiFmEHLITIC |  | | Journal (article/letter/editorial) | | were originally garnet-free assemblages equilibrated with kimberlitic or nepheline-melilite basalt-like...olivine and orthopyroxene. They are, in general, free from inclusions and extremely homogeneous with respect...and only grains surrounded by fresh surfaces and free from alteration products were selected. Handpicking...Roberts Victor Pipe [6] and megacryst from the Monastery Mine (Shimizu, unpublished data) have similar REE...eclogites [6] and a diopside megacryst from the Monastery Mine (Shimizu, unpublished data) show similar REE |  | | Journal (article/letter/editorial) | | Yu. A. Litvinb a b Faculty of Geology, Moscow State University, Moscow, 119991 Russia Institute of Experimental...Australia) [5] fPer + MgSiO3 Koffiefontein (South Africa) [5] fPer + MgSiO3 + CaSiO3 + TAPP Sao Luiz...Slave Craton (Canada) [12] Maj + Omp Monastery (South Africa) [13] Maj + Omp Sao Luiz (Brazil) [14]... [15] Maj Jagersfontein (South Africa) [16] Maj Helam (South Africa) [17] Maj Brazil [18] Maj...by R. Moore and J. Gurney [13] in the Monastery pipe (South Africa). This find demonstrated that diamonds |  | | Journal (article/letter/editorial) | | SiOaundersaturated volcanic and plutonic rocks (nepheline syenites, nephelinites, phonolites, carbonatites...THIS STUDY Pyrope from kimberlite, Monastery Mine, Orange Free State. The sample 1. was a large, homogeneous...NIXON and BOYD, 1973). Pyrope and associated nepheline basanite, Dutsen Dushowo scoria cones, 2. Nigeria...6 778 A. J. Irving and F. A. Frey Table. Monastery La Dutsen Dushowo Trace element data for garnets...are below detection limits for all samples ie. Monastery' - 1.4 40 230 1.09 Binge Mt. Black Spur |  | Nosova, A. A., Sazonova, L. V., Kargin, A. V., Smirnova, M. D., Lapin, A. V., Shcherbakov, V. D. (2018) Olivine in ultramafic lamprophyres: chemistry, crystallisation, and melt sources of Siberian Pre- and post-trap aillikites. Contributions to Mineralogy and Petrology, 173 (7) doi:10.1007/s00410-018-1480-3 | Journal (article/letter/editorial) | | 119017, Russian Federation 2 Lomonosov Moscow State University, GSPâ1, Vorobyovy Gory, Moscow 119991...range phlogopite, clinopyroxene, monticellite and nepheline contents. They have been found as dykes, sills...at the Laboratory of Local Analytical Methods, Geology Department, Moscow State University, Russia. Based...equipped at the Geology Department of Lomonosov Moscow State University using analytical procedure similar to...Mnz monazite, Mg-Ilm magnesium ilmenite, Nph nepheline, Ntr natrolite, Ol olivine, Phl phlogopite, Prv |  | | Book (volume) | | Diamond-Graphite Ecologite From the Roberts Victor Mine, C. J. Hatton and John J. Gurney .................Granulites and Eclogites From Lesotho, Southern Africa, W. L. Griffin, D. A. Carswell, and P. H. Nixon...Garnet Harzburgite XenolithsFrom the Premier Mine, South Africa, R. V. Danchin ...........................the Bultfontein and De Beers Mines, Kimberley, South Africa, P. J. Lawless, J. J. Gurney, and J. B. Dawson...257 The Ilmenite Associationat the Frank Smith Mine, R.S.A., Jill Dill Pasteris, F. R. Boyd, and P. |  | Georgiev, S., von Quadt, A., Heinrich, C.A., Peytcheva, I., Marchev, P. (2012) Time evolution of a rifted continental arc: Integrated ID-TIMS and LA-ICPMS study of magmatic zircons from the Eastern Srednogorie, Bulgaria. Lithos, 154. 53-67 doi:10.1016/j.lithos.2012.06.020 | Journal (article/letter/editorial) | | extensive magmatic arc that formed by convergence of Africa and Europe during Mesozoic to Tertiary times. Northward...tectono-magmatic regions are distinguished from north to south within Eastern Srednogorie: East Balkan, YambolâBurgas...region extended into the Strandzha region further south, in the form of numerous tholeiitic, calc-alkaline...the East Balkan and Strandzha regions, indicating local incorporation as xenocrysts. In contrast, magmatic...tholeiitic and calc-alkaline intrusions in the south (Strandzha), and the voluminous 81â78Ma old gabbroic |  | | Book | | ............................ 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...7.2. 2. Compositional Variation of Contamination-Free Kimberlites .......... 7.2 .2 .I. Intra-kimberlite.......................... 437 KIMBERLITES Ex Africa semper aliquid novi. Pliny The Elder, Natural...confluence of the Vaal, Orange, and Riet Rivers of South Africa in 1866-1867. The ebb and flow of prospecting |  | | Journal (article/letter/editorial) | | Eclogites from the Chicundo (Angola) and Lace (S. Africa) kimberlites have been subject to post-equilibrium...kimberlite intrusions of the Roberts Victor Mine and Bellsbank (S. Africa), and from the Mir and Udachnaya kimberlites...and sapphirine (Chinner and Cornell, 1974) and nepheline (Lappin, 1978). Studies on eclogites (including...partial melting, and Spetsius and Taylor (2002) state that all the Siberian eclogites have been partly...the textures of samples from the Roberts Victor Mine, deďŹning Group I as characterised by rounded garnet |  | | Journal (article/letter/editorial) | | Koptyuga 3, Novosibirsk, 630090 Russia b Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090...2001; McCammon, 1997; Wilding et al., 1991), West Africa (Joswig et al., 1999; Stachel et al., 2002; Stachel...craton, South Africa (Deines et al., 1991; McDade and Harris, 1999; Moore and Gurney, 1985), South Australia...and Al2SiO5, Na-clinopyroxene, and a phase of nepheline composition. Such garnets are usually Ca-rich...diamond and from deposit to deposit (SaĂľâLuiz, Monastery, Jagersfrontein, Kankan). It is likely that this |  | | Journal (article/letter/editorial) | | Evolution of a Grospydite From the Roberts Victor Mine, South Africa M.A. Lappin Department of Geology & Mineralogy...yet found in South African kimberlite xenoliths and also sub-micron sized sodic nepheline in melted and...jadeite-rich clinopyroxenes and quenching to glass, nepheline and plagioclase. Most of the glass has a composition...similar to clinopyroxene, except for K20, though local areas of different glass, possibly the result of...from the waste tip of the Roberts Victor Mine, Orange Free State. The specimen contains clinopyroxene, garnet |  | | Journal (article/letter/editorial) | | regions of Archean orogeny (the Kaapvaal Craton, South Africa and Lesotho, and the Siberian Platform in the...edge of the Archean Kaapvaal Craton of southern Africa, is regarded as a model because of the thorough...eruption: 185 km in Northern Lesotho and 190 km in South Africa on the basis of high-temperature xenoliths from...from the Frank Smith, Jagersfontein, and Monastery pipes, and 205 km on the basis of low-temperature...thermobarometry of xenoliths from the kimberlitic pipes of South Africa, on the Kaapvaal Craton, but somewhat farther |  | | Journal (article/letter/editorial) | | steep-sided hills, and peaked serrotes ".âA. H. VII.âNEPHELINE SYENITES OP HALIBUETON COUNTY, ONTAHIO. By W...author describes two differentiated laccoliths of nepheline syenite that lie in a syncline of limestone between...agreement with Professor Smyth's opinion that nepheline and sodalite rocks are results of the pneumatolytia...limestone as the parent materials, amphibolite and nepheline syenite were, it is believed, thus derived, and...a fortress or a fetish monastery by an earlier race of inhabitants; the local Ashantis display utter |  | | 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 |  | | Journal (article/letter/editorial) | | peralkaline nepheline syenite (white foyaite) from the Pilanesberg Complex, South Africa Tom Andersen...peralkaline nepheline syenite (white foyaite) from the Pilanesberg Complex, South Africa, Chemical Geology...peralkaline nepheline syenite (white foyaite) from the Pilanesberg Complex, South Africa Muriel Erambert1...PO Box 524 Auckland Park 2006, Johannesburg South Africa NU *: Corresponding author, tom.andersen@geo...MA The Mesoproterozoic Pilanesberg Complex, South Africa, is built up by several distinct, ring-shaped |  | | Journal (article/letter/editorial) | | Brazil, black diamonds from German possession in Africa â Jagersfontein and common diamonds from Luderitz...spherosiderite (botryoidal siderite) from the Buklovsky mine at Vyksy, Italic designates the names given by...were diamonds from Kimberley and Jagersfontein, South Africa, and also diamonds from Brazil and from Bingara...engineergeologist A.G. Kitaev have visited the Blyumov mine (Southern Urals), from which they have extracted...for M. Curie, who worked at that time in Paris. Local miner Andrey Lobachev greatly helped them showing |  | | Journal (article/letter/editorial) | | 100â 1000 in zircons from some carbonatites and nepheline syenite pegmatites. The geochemical signatures...crystals in granite pegmatites and particularly in nepheline syenites (Deer et al. 1966) and carbonatites;...granitoids, syenitic rocks, syenite pegmatites and nephelineâsyenite pegmatites) from diďŹerent geographical...kimberlite pipes of Southern Africa, Russia and Australia. Zircons from South African kimberlites are the...from three small kimberlite bodies: Orroroo from South Australia, Pteropus from the Kimberley Block and |
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