 | | Journal (article/letter/editorial) | | Department of Geochemistry University of Cape Town, Republic of South Africa arro R. V. DnNcurrq2 Anglo-American...ResearchLaboratory Crown Mines, Johannesburg, Republic of South Africa Abstract Two new opaquemineralsare describedfrom...Presentaddress: Stockdale Prospectint-Ltd., 60 Wiison Street, South yarra, Victoria 3141,Australia. 0003-004x/83/0505-M94$02...from the De Beers kimberlite in the Republic of South Africa (RSA) and the mineral has since been recognized...accessory mineral in veined peridotites from nearby Bultfontein. Mathiasite, the K member has thus far been recognized |  | | 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 | | not attempted to describe diamond prospecting and mining and, although I have attempted to give some of...with whose research groups at the universities of Cape Town and Chicago I have had long and fruitful collaboration...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. . . . . . . . . . |  | | Journal (article/letter/editorial) | | 1990 Silicate-bearingrutile-dominatednodulesfrom South African kimberlites: Metasomatizedcumulates DaNrrr...Kampfersdam and Jagersfonteinkimberlite pipes in South Africa contain euhedral olivines and spinels,graphic...In a similar nodule from the Pulsator dump in Kimberley, rutile and ilmenite are graphically intergrown...Jagersfonteinsamplescontain Ca-Cr-NbZr-beaing armalcolite that may also be magmatic or, together with Nb-rich...including phlogopite, amphibole, rutile, ilmenite, armalcolite, and members of the lindsleyite-mathiasite group |  | | Journal (article/letter/editorial) | | in polymict xenoliths from the Bultfontein kimberlites, South Africa: implication for low bulk-rock oxygen...Polymict mantle xenoliths from the Bultfontein kimberlites, South Africa, contain abundant ilmenites (30%...of Geochemistry, University of Cape Town, Rondebosch 7700, South Africa Editorial responsibility: T.L...homogeneous high-Ti silicate melt. Keywords South Africa á Polymict xenolith á Oxide mineral á Ilmenite...migrated through the lithosphere. Examples are armalcolite and exotic oxides, such as lindsleyite-mathiasite |  | Jaques, A. L., O'Neill, H. St. C., Smith, C. B., Moon, J., Chappell, B. W. (1990) Diamondiferous peridotite xenoliths from the Argyle (AK1) lamproite pipe, Western Australia. Contributions to Mineralogy and Petrology, 104 (3) 255-276 doi:10.1007/bf00321484 | Journal (article/letter/editorial) | | Cr-rich (up to 13% Cr203) titanate resembling armalcolite but containing significant K20 (1%-2.5%), CaO...(McCallum and Eggler /976), 2 from Finsch in South Africa (Shee et al. 1982) and the remainder from Yakutia...s h t o n Joint Venture in 1979 (Atkinson et al. 1984a, b), is located in the east Kimberley region, Western...side of Lake Argyle on the Ord River some 200 km south of the town o f K u n u n u r r a (lat 16 ~ 42'...and R u t l a n d 1984) at the margin of the Kimberley Basin and has been dated (Rb-Sr phlogopite - whole |  | | Journal (article/letter/editorial) | | Abstract Kimberlite magmas from the Kimberley area of South Africa have sampled two main types of phlogopite-rich...and metasomatised, the upper mantle beneath the Kimberley area as indicated by the trace element characteristics...Geological Sciences, University of Cape Town, 7700 Rondebosch, South Africa Editorial responsibility: T.L...xenoliths have been known from the kimberlites of Kimberley for at least 80 years (e.g. Wagner 1914), it was...(1936) referred to phlogopite-rich xenoliths in South African kimberlites as ‘‘glimmerites’’. However |  | | Journal (article/letter/editorial) | | titanates from the Jagersfontein kimberlite, South Africa: Implications for metasomatism in the upper...Mg-Cr-ilmenite, Nb-Cr-rutile, and Ca-Cr (NbZr) armalcolite that have equally unusual chemistries. Kimberlitic...normalized abundances of IO’ to 10’. Crichtonite, armalcolite, and Nb-Cr-rutile occupy a compositional range...expressed as spine1 + Cr-ferropseudobrookite, and armalcolite is equivalent to Cr-geikielite + rutile in the...mineral. Two other equally exotic components, armalcolite (HAGGERTY, 1975, 1979; 1982; RABER and HAGGERTY |  | | Journal (article/letter/editorial) | | of some peridotites from the Kaapvaal craton (South Africa) Received: 27 October 2005 / Accepted: 15 January...in peridotite xenoliths from Kaapvaal craton (South Africa) provided compelling evidence for the occurrence...high-grade Archean Terranes: the Western Terrane, the South-Eastern Terrane, the Central Terrane and the Pietermaritz...kimberlite pipes of the Kimberley area (De Beers Mine; Bultfontein, Kimberley, South Africa) and Jagersfontein...Jagersfontein (Fig. 1). In the South-Eastern Terrane, samples come from several diamondiferous kimberlite localities |  | | Journal (article/letter/editorial) | | of Geochemistry, University of Cape Town, Rondebosch 7700 (South Africa) Received February 20, 1985; revised...mantle beneath the northern Lesotho margin of the Archaean craton in southern Africa are inferred to have...garnet lherzolite xenoliths from beneath the Kimberley area in the craton interior display internal isotopic...similar Cretaceous age, Bultfontein (Kimberley district) and Thaba Putsoa (northern Lesotho), was undertaken...orthopyroxene compositions indicate haba Putsoa Bultfontein (Kimberley cluster) 0 i . . . . 500 i km Fig |  | | Journal (article/letter/editorial) | | Cretaceous to late Jurassic) kimberlites in the Kimberley area. The metasomatic style is characterized by...emplacement ages of group I kimberlites in the Kimberley area dated at 83 ‹ 4 (2r) and 84 ‹ 0.9 Ma. One...both group I and II kimberlite magmatism in the Kimberley area. MARID and PKP zircon ages are also consistent...1975; Smith 1983) and cluster around 85 Ma in the Kimberley area. Konzett et al. (1995, 1998), using SHRIMP...intergrown with ilmenite and possible Cr±Zr armalcolite as inclusion in Krichterite. Secondary phlogopite |  | Fitzpayne, Angus, Giuliani, Andrea, Hergt, Janet, Phillips, David, Janney, Philip (2018) New geochemical constraints on the origins of MARID and PIC rocks: Implications for mantle metasomatism and mantle-derived potassic magmatism. Lithos, 318. 478-493 doi:10.1016/j.lithos.2018.08.036 | Journal (article/letter/editorial) | | Ryde, 2109 New South Wales, Australia Department of Geological Sciences, University of Cape Town, Rondebosch...Rondebosch 7701, South MA 3 AC CE Corresponding author. PT E * D Africa ACCEPTED MANUSCRIPT Abstract...MARID and PIC samples from the Kimberley- D Barkly West area in South Africa. Similarities between compositions...PIC xenoliths originate from the Kimberley kimberlites (South Africa), although MARID samples have also...relative abundance of archetypal MARID rocks in the Kimberley kimberlites compared to other localities remains |  | | Book | | calcite, clay minerals and fragments of crustal and local host country-rock. At Lattavaram the kimberlite...Iherzolite nodules in kimberlites(from Lesotho and South Africa) and were analysed for isotopic compositions...Extended Abstract, First Kimberlite Conference, Cape Town, 23. Basu, A. R. and Murthy, V. R.(1977) EPSL...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) | | the Bultfontein, De Beers, Wesselton, Dutoitspan and Newlands kimberlite pipes in southern Africa. Therefore...temperatures, pseudobrookite group minerals (including armalcolite) are unstable and hence the above assemblage...except for BD2394 [54], which is from a diamond mine and the minimum pressure for diamond to be stable...the vein in polymict xenolith, from the Bultfontein diamond mine. PHN2793=8B from [56]. A-306 from [57]...polymict xenolith (BD2394) from the Bultfontein diamond mine, South Africa contains coexisting ilmenite, chromite |  | | 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.... . . . . . . . . . . . . . . . . . 6.18.1. Armalcolite ...................................................................... 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 |  | Giuliani, A., Kamenetsky, V.S., Kendrick, M.A., Phillips, D., Wyatt, B.A., Maas, R. (2013) Oxide, sulphide and carbonate minerals in a mantle polymict breccia: Metasomatism by proto-kimberlite magmas, and relationship to the kimberlite megacrystic suite. Chemical Geology, 353. 4-18 doi:10.1016/j.chemgeo.2012.09.025 | Journal (article/letter/editorial) | | polymict breccia (DU-1) from the Bultfontein Dumps (Kimberley, South Africa). Xenolith DU-1 contains heterogeneous...isotope values (initial εHf =2.1–3.0) in the range of South African Group I kimberlites and associated megacrysts...xenolith (DU-1) collected from the Bultfontein Dumps (Kimberley, South Africa). Textural relationships, mineral...1) collected from the Bultfontein Dumps (Kimberley, South Africa). The Bultfontein Dumps comprise waste...the Bultfontein mine, which is one of four major diamond-producing kimberlites in the Kimberley cluster |  | | 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-WYC•ING STATE mINE DISTRICT 42 M. E. McCal!um, C. D. Mabarak, and H. G... K. J. Stracke, 59 OF KIMBEHLITES H.-M. IN SOUTH-EASteRN AUSTRALIA 71 J. Ferguson, an• L. P. Black...92 DYKES WITH KIMBER•.ITE AFFINITIES IN THE KIMBERLEY AREA C. R. Clement, E. M. Skinner, J. B. Hawthorne...CARBONATITEERUPTIVES AT SALTPETRE 111 KOP, SU•}tERLAND, SOU'iH AFRICA J. R. •cIver and J. Ferguson M•NERALOGY AND PETROLOGY |  | Fraser, K.J., Hawkesworth, C.J., Erlank, A.J., Mitchell, R.H., Scott-Smith, B.H. (1985) Sr, Nd and Pb isotope and minor element geochemistry of lamproites and kimberlites. Earth and Planetary Science Letters, 76 (1) 57-70 doi:10.1016/0012-821x(85)90148-7 | Journal (article/letter/editorial) | | of Geochemisto', University of Cape Town, Rondebosch 7700 (South Africa) ¢ Department of Geolog& Lakehead...e l e c t e d suites from Western Australia, South Africa, and M o n t a n a , U.S.A., a n d use t h e...the mobile belt at the southern margin of the Kimberley Block, and a recent K / A r and R b / S r age...the Ellendale area (20 22 Ma) and those further south (18 20 Ma). The lamproites from Smoky Butte in Montana...that intrude Palaeocene sediments. They contain armalcolite, sanidine, alkali amphobiles and Ti-phlogopite |  | Haggerty, Stephen E., Grey, Ian E., Madsen, Ian C., Criddle, A. J., Stanley, C. J., Erlank, A. J. (1989) Hawthorneite, Ba[Ti3Cr4Fe4Mg]O19: A new metasomatic magnetoplumbite-type mineral from the upper mantle. American Mineralogist, 74 (5-6) 668-675 | Journal (article/letter/editorial) | | of Geochemistry,University of Cape Town, Rondebosch,7700, South Africa AusrRAcr A new opaque mineral...from a diamondiferous kimberlite pipe in Kimberley, South Africa. The new mineral, hawthorneite (- 100 pm...(Diamonds),De BeersConsolidatedMines, Republic of South Africa, in recognition ofhis foundation studies on...and nondiamondiferous pipes throughout southern Africa to the international scientific community. This...sample from the Bultfontein mine (Boshof Road waste dumps) in Kimberley, South Africa. This sample, 8D3096 |  | | Journal (article/letter/editorial) | | Garnet Lherzolites from the Kaapvaal Craton (South Africa): Trace Element Evidence for a Metasomatic History...GEOLOGICAL SCIENCES, UNIVERSITY OF CAPE TOWN, RONDEBOSCH 7701, SOUTH AFRICA 2 DEPARTMENT OF EARTH, ATMOSPHERIC...features of mantle peridotite xenoliths of southern Africa JOURNAL OF PETROLOGY VOLUME 44 so that it is...that very few cratonic mantle peridotites from South Africa have escaped such enrichment. This is potentially...phlogopite-bearing lherzolite xenoliths from four well-known South African kimberlite localities of the 630 GREÂGOIRE |  | | Report (issue) | | (Mg, Fe2+ )Ti2 O5 Armalcolite c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic...Butte, Montana, USA); rutile, ilmenite (Kimberley, South Africa). Distribution: From Mare Tranquillitatis...Jagersfontein, Bultfontein, and Dutoitspan diamond mines, Kimberley, Transvaal, South Africa. In the Mwenezi... Prinz, P. Ramdohr, and A. El Goresy (1970) Armalcolite: a new mineral from the Apollo 11 samples. Geochim...2136 (abs. ref. 1). (3) Pedersen, A.K. (1981) Armalcolite-bearing Fe–Ti oxide assemblages in graphite-equilibrated |  | | Report (chapter) | | Ellendale and Argyle, on the SW and E margins of the Kimberley craton in N W Australia (Atkinson et al. 1984a...kimberlites (e.g. the Group II kimberlites of S Africa (Smith 1983a, b) and other m i c a c e o u s kimberlites)...et al. 1985; Foley et al., K-rich rocks occur as local variations within in review). Niggli (1923, pp....(Ti,Fe)6013 ), apatite, perovskite, sphene, armalcolite ((Mg,Fe)Ti4010), enstatite (rare) and ilmenite...1.5 x 103 to 2.5 • 103 Ma. Enoree Vermiculite district, S Carolina ( E V D ) (34 ~ 30' N, 82 ~ W) Geochemical |  | | Journal (article/letter/editorial) | | diamondiferous district, Siberian craton) is the worldwide renowned primary diamond mine, which carries...xenoliths carried out by kimberlite magmas in South Africa (Haggerty 1975, 1983, 1988, 1989; Jones et al...the central part of the Udachnaya-East open-pit mine at the depth interval 620–640 m. The xenolith is...compositions of magnetoplumbite-group minerals from South Africa (Haggerty et al. 1989), China (Dong et al. 1984;...0.500 0.470 0.012 0.022 13.439 1.004 LIMA (South Africa) K Figure 6. A-site occupancy of the studied |  | | Book (edition) | | 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...Mineralogia e Petrologia Program with abstract ·.joint 01111110/ meeting of the GAC. ,\L.J.Cand CSPG Pennskiye...Pennskiye gubemskiye wdomo.sti (Perm district ga=elle) Pl,ilosopl,ical Maga=ine Periodico de Alineralogia-Roma...Abernathyitc, K[(UO 2 )(AsO,)](HP) 3, tet., Fumerole No. 2 mine, Temple Mountain. on the southeast flank of the |  | | Book (volume) | | development since the First Kimberlite Conference, held in Cape Town in 1973, has come in the interpretation of...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 ...........................Geochemistryof Ultramarie NodulesFrom Pipe 200, Northern Lesotho, D. A. Carswell, D. B. Clarke, and R. |
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