 | | Journal (article/letter/editorial) | | 1990 Silicate-bearingrutile-dominatednodulesfrom South African kimberlites: Metasomatizedcumulates DaNrrr...Rutile-dominated nodules from the Kampfersdam and Jagersfonteinkimberlite pipes in South Africa contain euhedral olivines...Pulsator dump in Kimberley, rutile and ilmenite are graphically intergrown with enstatite. These are interpreted...Haggerty,1987),and Jagersfontein and Kampfersdam in South Africa (Haggerty, 1983; Schulze,1983; Tollo...nodules from the Jagersfonteinkimberlite in South Africa, eachof which contains graphic interyrowths |  | | Journal (article/letter/editorial) | | R*CKWOOD** Division of Geological Sciences, University of Cape Town 12,eceived November 4, 1969 Abstract. Brief...in the kimberlites of Lesotho, Rhodesia, Sauth Africa, and Tanzania. Six new mineral assemblages, which...Johannesburg, South Ah'ica. ** Present address: School of Applied Geology, University of New South Wales, Kensington...(1932), a group of workers at the University of Cape Town has been engaged on further petrological and...specimens are nearly all from kimberlites in South Africa, Lesotho and Rhodesia. We do not claim t h a |  | | Journal (article/letter/editorial) | | 3b7S02.W;O Ultramafic nodules from the Kimberley pipes, South Africa F. R. BOYD Geophysical Laboratory, Carnegie...from the Kimberley pipes differ from suites collected in a number of other areas in southern Africa in two...low-temperature (< 1100°C) peridotites from the Kimberley pipes have textures ranging from coarse to fluidal...mosaic-porphyroclastic. In most nodule suites from southern Africa and elsewhere in the world, these low-temperature...Petrographic and electron microprobe study of the Kimberley peridotites shows that they are depleted in basaltic |  | | Journal (article/letter/editorial) | | megacrysts from the kimberlites the Kimberley area and Jagersfontein, South Africa of F. R. BOYD Geophysical...megacrysts, called Granny Smith nodules, in the Kimberley area and Jagersfontein kimberlites are sheared...of the xenolith and megacryst suites from the Kimberley and Jagersfontein pipes. The size of this fraction...number of Kimberley localities, including the Bultfontein and Kampfersdam dumps and the DeBeers mine. Megacrysts...have been found in abundance at the Jagersfontein mine and are also present in the Hanover pipe. SHEE and |  | | Journal (article/letter/editorial) | | upper mantle beneath the Kaapvaal craton, Southern Africa A.B. Woodland , M. Koch Mineralogisches Institut...the Kaapvaal craton in South Africa (Kimberley, Jagersfontein, Frank Smith Mine, Monastery) and Lesotho...coverage from V80 to 220 km. For the Lesotho and South African xenoliths there is a systematic, but not...attended metasomatism, as recorded in samples from Kimberley. Our results emphasise that the upper mantle cannot...garnet peridotite xenoliths from the Wesselton Mine, South Africa. However, a detailed analysis of the variation |  | | 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...1998) and kimberlitic megacryst zircons from the Kimberley area (B98: Belousova et al. 1998). Arrows mark |  | | Journal (article/letter/editorial) | | mantle: A study of xenoliths from the Finsch mine, South Africa Marina Lazarov ⁎, Alan B. Woodland, Gerhard...of 28 peridotite xenoliths from the Finsch mine, South Africa, have been studied to assess the geotherm...peridotites from younger southern African localities (Kimberley pool, Jagersfontein, Lesotho) centre around a...for a given pressure. This reflects heating and local perturbation of the thermal gradient of these mantle...perturbations at depth, but can also be due to local differences in mantle heat production as a result |  | Bulanova, G.P., Muchemwa, E., Pearson, D.G., Griffin, B.J., Kelley, S.P., Klemme, S., Smith, C.B. (2004) Syngenetic inclusions of yimengite in diamond from Sese kimberlite (Zimbabwe) — evidence for metasomatic conditions of growth. Lithos, 77 (1) 181-192 doi:10.1016/j.lithos.2004.04.002 | Journal (article/letter/editorial) | | octahedral macrodiamond from the Sese kimberlite (50 km south of Masvingo, Zimbabwe). One yimengite inclusion...concentrate from a kimberlite sill in the Guaniamo district, Venezuela (Nixon and Condliffe, 1989). The mineral...associated with chromite, subcalcic G10 garnet and enstatite was identified by Sobolev et al. (1988) in diamond...harzburgite xenolith from kimberlite (Kimberley, South Africa), has also a magnetoplumbite type of structure...proceedings) is located on the Zimbabwe Craton in South Central Zimbabwe (Fig. 1) and its emplacement has |  | | Journal (article/letter/editorial) | | in xenoliths in the Jagersfontein Kimberlite, South Africa. Harzburgites of olivine and high-A1 (1.9-3...6 wt%), Ca (0.6-0.9 wt%) and Cr (0.3~.9 wt%) enstatite contain symplectites of spinel and diopside, or...2 wt%), Ca (0.10.4 wt%) and Cr (0.02-0.8 wt%) enstatite. From textures and mineral chemistries these symplectites...unmixing and migration from A1-Ca-Cr discrete enstatite to adjoining mineral interfaces. Garnet harzburgites...wt%), Ca (0.1-0.5 wt%), and Cr (0.1 0.3 wt%) enstatite and smaller interstitial garnet, diopside, and |  | | Journal (article/letter/editorial) | | the Mzongwana kimberlite dike, Transkei, southern Africa, are predominantly pyroxenites composed of ilmenite...Smith and associated Weltvreden kimberlites in South Africa (Rawlinson and Dawson 1979 ; Pasteris et al...an enstatie-ilmenite nodule from the Kampfersdam pipe, South Africa (authors' collection). The Mzongwana...peridotites, garnet lherzolites, dunites, coarse enstatite pyroxenites, and bronzite discrete nodules. A...crystals. Darker zone is predominantly ilmenite and enstatite with minor amphibole and mica. Xenolith is 4 cm |  | | Journal (article/letter/editorial) | | Cretaceous kimberlite of the central Kaapvaal Craton, South Africa. Two episodes of interaction between the host...emplacement ages of Cretaceous kimberlites in the Kimberley area. The age spread is interpreted as a result...al. / Lithos 182–183 (2013) 165–184 South Africa. In the Kimberley area numerous Cretaceous kimberlites...xenolith sampled by one of the kimberlites of the Kimberley cluster from the central Kaapvaal Craton, for...km W of the center of Kimberley. These dumps contain xenoliths from the Kimberley cluster of kimberlites |  | | Book (volume) | | rmf ' j^lr ^1 THE DIAMOND MINES OF SOUTH AFRICA VOL. II Digitized by the Internet Archive...org/details/diamondminesofso02will THE DIAMOND MINES OF SOUTH AFRICA BY GARDNER F. WILLIAMS, M.A. GENERAL MANAGER...Storing and Handling of Dynamite. The Fire in De Beers Mine, iith July, 1888. The Occurrence of “Mud Rushes...Churches in the Compounds. The Mining Towns Kimberley : its ........ Public Buildings, Streets,...Lapidaries. in in Produc- Orange River Colony, the South Art of Carving taught by The Modern Diamonds |  | Konzett, Jürgen, Krenn, Kurt, Rubatto, Daniela, Hauzenberger, Christoph, Stalder, Roland (2014) The formation of saline mantle fluids by open-system crystallization of hydrous silicate-rich vein assemblages – Evidence from fluid inclusions and their host phases in MARID xenoliths from the central Kaapvaal Craton, South Africa. Geochimica et Cosmochimica Acta, 147. 1-25 doi:10.1016/j.gca.2014.10.015 | Journal (article/letter/editorial) | | xenoliths from the central Kaapvaal Craton, South Africa Jürgen Konzett, Kurt Krenn, Daniela Rubatto...xenoliths from the central Kaapvaal Craton, South Africa, Geochimica et Cosmochimica Acta (2014), doi:...xenoliths from the central Kaapvaal Craton, South Africa Jürgen Konzett1, Kurt Krenn2, Daniela Rubatto3...sampled by Cretaceous group-I kimberlites of the Kimberley cluster from the central Kaapvaal Craton. We use...emplacement ages of the group-I kimberlites in the Kimberley area which range from 83±4 to 90±3 Ma (Allsopp |  | | Journal (article/letter/editorial) | | et al. [44];ettheir 2. Polymineralic diamondmine, mine, Slave craton, Canada (modified after Bussweiler...[32] Monastery kimberlite, Kaapvaal craton, South Africa ol Ti-rich phl, ol, spl, ilm, grt; + sulfide-rich...[45] Monastery kimberlite, Kaapvaal craton, South Africa ol cc, phl, spl (low Al & Cr), prv, srp, fresh/devitrified...olivine megacrysts from the Monastery kimberlite, South Africa, favored an “entrapped liquid hypothesis”, implying...the Jagersfontein, Kampfersdam, Frank Smith, Kao, and Camatue pipes in southern Africa. The interpretations |  | | Book | | calcite, clay minerals and fragments of crustal and local host country-rock. At Lattavaram the kimberlite...temperature range 850 to 1450°C for the system enstatite-pyrope and in the pres¬ sure range 30 to 105 kbar...are shown in Figure 1. The solid solubility of enstatite in pyrope increases gradually to 140 kbar and...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 |  | Giuliani, Andrea, Woodhead, Jon D., Phillips, David, Maas, Roland, Davies, Gareth R., Griffin, William L. (2018) Titanates of the lindsleyite–mathiasite (LIMA) group reveal isotope disequilibrium associated with metasomatism in the mantle beneath Kimberley (South Africa) Earth and Planetary Science Letters, 482. 253-264 doi:10.1016/j.epsl.2017.11.014 | Journal (article/letter/editorial) | | with metasomatism in the mantle beneath Kimberley (South Africa) Andrea Giuliani a,b,c,∗ , Jon D. Woodhead...xenoliths Sr isotope disequilibrium metasomatism Kimberley * a b s t r a c t Radiogenic isotope variations...xenoliths from the ∼84 Ma Bultfontein kimberlite (South Africa). Previous U/Pb dating of the LIMA phases was...and entrained xenoliths from the Kimberley kimberlites (South Africa) lead us to question the basic assumption...magmatism in the lithospheric mantle beneath Kimberley (Dawson et al., 2001; Giuliani et al., 2013a, |  | | Book (edition) | | iMi THE DIAMOND MINES OF SOUTH AFRICA SOME ACCOUNT OF THEIR AND DEVELOPMENT RISE BY GARDNER F. ...The Rush The to 87 114 . the Vaal 140 Kimberley 164 Camps Great White Opening 32 . the...Statistics of De Beers Main for Shaft, Kimberley Mine Kimberley Mine Company . 605 667 669 670 671...House, Achter Brand Solder Cape Cart The Gate 81 82 . Herd of Cape Goats Cellar. Tatr, 1757 ...Machinery . Lightning Gong Gong, i88o 55 Kimberley at Day View, Same 56 Scene Diamond Largest |  | | Journal (article/letter/editorial) | | Department of Geological Sciences, Durham UniÕersity, South Road, Durham, DH1 3LE, UK Received 20 March 1998;...events. Some locations, such as Premier in southern Africa, and Lashaine in Tanzania, indicate more recent...quantifiable in terms of length scale, an idea of the local CLM isotopic variability sampled by individual kimberlites...garnet lherzolite from the Premier kimberlite, S. Africa. Data from Pearson et al. Ž1995a.. Error bars are...diamondiferous suite from the Newlands kimberlite, S. Africa ŽMenzies et al., 1998. gives a whole rock D.G |  | | 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 |  | Robles-Cruz, Sandra E., Escayola, Monica, Jackson, Simon, Galí, Salvador, Pervov, Vladimir, Watangua, Manuel, Gonçalves, Antonio, Melgarejo, Joan Carles (2012) U–Pb SHRIMP geochronology of zircon from the Catoca kimberlite, Angola: Implications for diamond exploration. Chemical Geology, 310. 137-147 doi:10.1016/j.chemgeo.2012.04.001 | Journal (article/letter/editorial) | | northeastern Angola is influenced by the opening of the south Atlantic, which reactivated deep NE–SW-trending...Lucapa deep-seated fault system, which developed a local basin in northeastern Angola along a line that continues...Angola likely could have led to decompression (local extension) and compression, resulting in some control...zircon crystals from other kimberlites in southern Africa, Yakutia, and Australia (Belousova et al., 1998...southeastern Brazil and southwestern Africa, coincident with the opening of the South Atlantic Ocean (Hawkesworth |  | | Journal (article/letter/editorial) | | 1986 Volatile contents of phlogopite micas from South African kimberlite Dean W. Matson 1, David W. Muenow...USA Abstract. Phlogopite micas from nodules in South African kimberlites were analyzed for major elements...nodules in South African kimberlites. Phologopite of upper mantle origin has been identified in South African...w/cloudy interiors (submicroscopic inclusions) 3 Kampfersdam pipe '~ Monastery pipe Results Major elements...stored in phlogopite. He showed that 407 I0,000 South African X~,, Kimberhte M i c a s - - i I 5000 |  | Ashchepkov, I. V., Alymova, N. V., Logvinova, A. M., Vladykin, N. V., Kuligin, S. S., Mityukhin, S. I., Downes, H., Stegnitsky, Yu. B., Prokopiev, S. A., Salikhov, R. F., Palessky, V. S., Khmel'nikova, O. S. (2014) Picroilmenites in Yakutian kimberlites: variations and genetic models. Solid Earth, 5 (2). 915-938 doi:10.5194/se-5-915-2014 | Journal (article/letter/editorial) | | symplectites occur more rarely in Yakutia compared with South African kimberlites (Dawson and Reid, 1970; Ringwood...containing Cr diopsides similar to those described in South African kimberlites (Moore and Lock, 2001) (Fig...by continuous fractionation, as suggested for South Africa (Moore et al., 1992; Griffin et al., 1997) and...be used to reconstruct the SCLM section in the northern part of the Alakit region. The PT paths for ilmenite...and Hf, similar to those for ilmenites from South Africa (Dawson et al., 2001; Gregoire et al., 2003) |  | | Book | | e SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE Cape Town, April 1998 EXTENDED ABSTRACTS All extended...responsibility for authors’ errors and omissions. SOUTH AFRICA SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE...Survey of South Africa) SouthemEra Resources Ltd SOCIETY SPONSORS Geological Society of South Africa (GSSA)...a Phanerozoic subduction regime in eastern New South Wales, Australia. Mantle Dynamics beneath Mongolia:...growth of Archean cratons: a case study from west Africa. The vertical distribution of indicator minerals |  | | 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.......................... 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...to shallow water-filled depressions known in South Africa as "pans." The mud was used in the construction |  | | Book | | (Novosibirsk) International Treasurer: H.O.Meyer (USA) Local Treasurer: 0 AKozmenko (Novosibirsk) Members: V...associated alkalic basaltic rocks from Pishin District, Pakistan.4 Reasons of variations of individual...lamproites and kimberlites of the Kola peninsula and Northern Karelia.............28 Experimental study of fluid...prognosis and prospering of diamond's host rocks on the south of Siberian platform.38 The petrology and geochemistry...geochemistry of a polymict xenolith from the Kimberley Area, South Africa......40 Eclogites from the Mir kimberlite |
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