 | | Journal (article/letter/editorial) | | sequence and magma evolution of the De Beers dyke (Kimberley, South Africa) Ashton Soltys 1 & Andrea Giuliani...the De Beers dyke, a contemporaneous, composite intrusion bordering the De Beers pipe (Kimberley, South...South Africa). Petrographic features and mineral compositions indicate the following stages in the evolution...apatite, monticellite, calcite micro-phenocrysts, kinoshitalite-phlogopite, barite, and baddeleyite) and the...mineral compositions of different units within the De Beers dyke are indistinguishable from one another, indicating |  | | Journal (article/letter/editorial) | | African Localities T o complement the Minerals of Africa theme of the 2002 Tucson Gem and Mineral Show,...88; Namibia is next with 73; the Republic of South Africa is third with 65; together they represent about...immediately leap to mind at the very mention of Africa, David Livingstone (18 13-73) and Henry Morton...for them, but neither species was first found in Africa; Mexico and Peru are the type localities for livingstoneite...appropriately discovered in a famed Kimberley diamond pipe in South Africa (see Who’s Who in Mineral Names |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Kjarsgaard, Bruce A., Fedortchouk, Yana, Ehrig, Kathy, Kamenetsky, Maya (2020) Evolution of kimberlite magmas in the crust: A case study of groundmass and mineral-hosted inclusions in the Mark kimberlite (Lac de Gras, Canada). Lithos, 372. 105690pp. doi:10.1016/j.lithos.2020.105690 | Journal (article/letter/editorial) | | mineral-hosted inclusions in the Mark kimberlite (Lac de Gras, Canada) Adam Abersteiner, Vadim S. Kamenetsky...mineral-hosted inclusions in the Mark kimberlite (Lac de Gras, Canada), LITHOS (2020), https://doi.org/ 10...mineral-hosted inclusions in the Mark kimberlite (Lac de Gras, Canada) Adam Abersteiner1,2*, Vadim S. Kamenetsky1...fresh archetypal kimberlite from the Mark pipe (Lac de Gras, Canada), which is characterised by well-preserved...Cr-diopside, spinel, perovskite, phlogopite/kinoshitalite, apatite and calcite preserve a record of different |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Giuliani, Andrea, Howarth, Geoffrey H., Castillo-Oliver, Montgarri, Thompson, Jay, Kamenetsky, Maya, Cherry, Alexander (2019) Composition and emplacement of the Benfontein kimberlite sill complex (Kimberley, South Africa): Textural, petrographic and melt inclusion constraints. Lithos, 324. 297-314 doi:10.1016/j.lithos.2018.11.017 | Journal (article/letter/editorial) | | the Benfontein Kimberlite Sill complex (Kimberley, South Africa): Textural, petrographic and melt inclusion...the Benfontein Kimberlite Sill complex (Kimberley, South Africa): Textural, petrographic and melt inclusion...the Benfontein Kimberlite Sill Complex (Kimberley, South Africa): Textural, petrographic and melt inclusion...Geological Sciences, University of Cape Town, Rondebosch 7701, South Africa 6 Department of Geology, University...emplacement coeval with other kimberlites of the Kimberley SC RI cluster. The Benfontein sills are characterised |  | WHITE, J. L., SPARKS, R. S. J., BAILEY, K., BARNETT, W. P., FIELD, M., WINDSOR, L. (2012) KIMBERLITE SILLS AND DYKES ASSOCIATED WITH THE WESSELTON KIMBERLITE PIPE, KIMBERLEY, SOUTH AFRICA. South African Journal of Geology, 115 (1) 1-32 doi:10.2113/gssajg.115.1.1 | Journal (article/letter/editorial) | | ASSOCIATED WITH THE WESSELTON KIMBERLITE PIPE, KIMBERLEY, SOUTH AFRICA J.L. WHITE, R.S.J. SPARKS, K. BAILEY Department...seroster99@hotmail.com © 2012 March Geological Society of South Africa ABSTRACT Field relations, petrography and bulk...complex exposed in water tunnels at Wesselton Mine, Kimberley. The sill complex, together with associated...associated with the Wesselton kimberlite pipe, Kimberley, South Africa. This study investigates their intrusion...Wesselton Mine is situated 6.5 km southeast of Kimberley in the Northern Cape Province of South Africa and |  | Dalton, Hayden, Giuliani, Andrea, O'Brien, Hugh, Phillips, David, Hergt, Janet (2020) The role of lithospheric heterogeneity on the composition of kimberlite magmas from a single field: The case of Kaavi-Kuopio, Finland. Lithos, 354. 105333 doi:10.1016/j.lithos.2019.105333 | Journal (article/letter/editorial) | | kimberlites of a single cluster and field (e.g., Lac de Gras), the Kaavi-Kuopio al kimberlites appear to...perovskite, magnesian- ilmenite, phlogopite-kinoshitalite mica, apatite, monticellite, carbonate (calcite...kimberlite clusters (e.g., Kimberley, South Africa) and fields (i.e. Lac de Gras, oo f Canada) which...event is represented by the Kuusamo cluster in northern Finland (Fig. 1) and consists of seven evolved... 2E). Microphenocrysts of zoned poikilitic kinoshitalite-phlogopite (100-250 µm) are present in Pipe |  | Lim, Emilie, Giuliani, Andrea, Phillips, David, Goemann, Karsten (2018) Origin of complex zoning in olivine from diverse, diamondiferous kimberlites and tectonic settings: Ekati (Canada), Alto Paranaiba (Brazil) and Kaalvallei (South Africa) Mineralogy and Petrology, 112. 539-554 doi:10.1007/s00710-018-0607-6 | Journal (article/letter/editorial) | | (Canada), Alto Paranaiba (Brazil) and Kaalvallei (South Africa) Emilie Lim 1 & Andrea Giuliani 1,2 & David... Tres Ranchos-04), and the Kaapvaal craton, South Africa (Kaalvallei: Samada, New Robinson). Olivine...localities: Grizzly and Koala (Ekati property), Lac de Gras, Canada; Limpeza-18 and Tres Ranchos-04, Alto...Samada and New Robinson (Kaalvallei cluster), South Africa (Fig. 1). This is the first detailed study of...Grizzly and Koala kimberlites are located in the Lac de Gras kimberlite field of the Slave craton, Canada |  | | Journal (article/letter/editorial) | | Sciences Building, Edmonton, Alberta, Canada T6G 2E3 De Beers Canada Inc., Kimberlite Petrology Unit, 300-65...altered volcanic and pyroclastic meimechites from northern Canada (Baragar et al., 2001) to define a so-called...formation of abundant groundmass primary phlogopite–kinoshitalite, hydroxyl-rich apatite, and primary serpentine...data on this rock type, in particular the West Kimberley suites (Jaques et al., 1986). Francis and Patterson...mineralogy of kimberlites (especially phlogopite–kinoshitalite, Cr– spinel, apatite, and perovskite), and certainly |  | | Journal (article/letter/editorial) | | Territories, Canada. Sommaire La kimberlite cambrienne de Snap Lake, située dans les Territoires du Nord-Ouest...au Canada, constitue un rare exemple d’un gisement de kimberlite diamantifère filonien économique, presque...monticellite; elle contient une faible proportion de brèches kimberlitiques. La kimberlite contient une...une olivine serpentinisée dans une matrice de monticellite serpentinisée, serpentine, phlogopite, dolomite...apatite, rutile et ilménite. La composition de la kimberlite de Snap Lake ressemble, dans ses éléments majeurs |  | | Journal (article/letter/editorial) | | Tuffisitic kimberlites from the Wesselton Mine, South Africa: Mineralogical characteristics relevant to...Geology, Rhodes University, Grahamstown 6140, South Africa Scott-Smith Petrology Inc., 2555 Edgemont Blvd...r a c t Tuffisitic kimberlites from the Wesselton Mine consist, in order of formation, of the following...these rocks. We have chosen the Wesselton Mine (South Africa) as the “type locality” for “tuffisitic kimberlite”...so-called KIMFIK pipes (a collective term for De Beers, Wesselton, Dutoitspan, Bultfontein, Finsch, and |  | Kjarsgaard, B.A., Pearson, D.G., Tappe, S., Nowell, G.M., Dowall, D.P. (2009) Geochemistry of hypabyssal kimberlites from Lac de Gras, Canada: Comparisons to a global database and applications to the parent magma problem. Lithos, 112. 236-248 doi:10.1016/j.lithos.2009.06.001 | Journal (article/letter/editorial) | | Geochemistry of hypabyssal kimberlites from Lac de Gras, Canada: Comparisons to a global database and...Canada K1A 0E8 Earth Sciences, Durham University, South Road, Durham, DH1 3LE, United Kingdom Earth and...geochemical analyses of hypabyssal kimberlite from the Lac de Gras field. Screens using Yb versus Al2O3 and ln Si/Al...contents of peridotite contamination. We utilize the Lac de Gras data suite to calculate, by two different methods...geochemically distinct parent magma types. The Lac de Gras parent magma compositions are compared to those |  | | Journal (article/letter/editorial) | | from 17 kimberlite localities from SC southern Africa, Canada, Greenland and Russia. These data show...kimberlite locality, cluster (e.g., Kimberley) and, potentially field (e.g., Lac de Gras), form a single compositional...compositions of olivine rims in kimberlites from SC Lac de Gras that were emplaced as hypabyssal root-zones...different areas suggest contribution from a range of local processes, such as variable source composition,...filtering PT E 3.3. Canada D 3.2. Southern Africa 3.4. West Greenland CE 3.5. Russia 4. Origin |  | Willcox, A., Buisman, I., Sparks, R.S.J., Brown, R.J., Manya, S., Schumacher, J.C., Tuffen, H. (2015) Petrology, geochemistry and low-temperature alteration of lavas and pyroclastic rocks of the kimberlitic Igwisi Hills volcanoes, Tanzania. Chemical Geology, 405. 82-101 doi:10.1016/j.chemgeo.2015.04.012 | Journal (article/letter/editorial) | | (Bell and Dodson 1981). Quaternary volcanism in northern Tanzania is mainly confined to the Gregory Rift...carbonate-rich kimberlites of the Benfontein Sills, South Africa (Dawson 1994). It has been contentious whether...range between 0.49-0.51, which is similar to Lac de Gras and Churchill kimberlites, Canada (Armstrong...Zurevinski et al. 2008) and Leslie kimberlite (Lac de Gras, Canada; Armstrong et al. 2004) but is lower...Island; Mitchell 1986, 1978) and Duitoitspan (South Africa; Snowden 1981). Both Leslie and Elwin Bay kimberlites |  | Dalton, Hayden, Giuliani, Andrea, Phillips, David, Hergt, Janet, Maas, Roland, Matchan, Erin, Woodhead, Jon, O'Brien, Hugh (2020) A comparison of geochronological methods commonly applied to kimberlites and related rocks: Three case studies from Finland. Chemical Geology, 558. 119899pp. doi:10.1016/j.chemgeo.2020.119899 | Journal (article/letter/editorial) | | from kimberlites and related rocks in southern Africa (e.g., Fitch and Miller, 1983; Allsopp and Roddick...on kimberlites from the Prieska area, southern Africa. Batumike et al. ro (2008) presented the first...U-Pb dating results for kimberlites from South -p Africa and the Congo, building on the earlier work...event is represented by the Kuusamo cluster in northern Finland (Fig. 1) and consists of seven evolved...from Pipe 5 (P5). Colourless, zoned poikilitic kinoshitalite-phlogopite is common in both the Kuusamo and |  | Abersteiner, Adam, Kamenetsky, Vadim S., Graham Pearson, D., Kamenetsky, Maya, Goemann, Karsten, Ehrig, Kathy, Rodemann, Thomas (2018) Monticellite in group-I kimberlites: Implications for evolution of parental melts and post-emplacement CO2 degassing. Chemical Geology, 478. 76-88 doi:10.1016/j.chemgeo.2017.06.037 | Journal (article/letter/editorial) | | et al., 2015) Leslie kimberlite is part of the Lac de Gras kimberlite field consists of more than 150 kimberlite...kimberlite bodies (Tyni (1997)) and is located on south- D western margin of the Archean Karelian Craton...abundance) monticellite, calcite, phlogopite/kinoshitalite, brucite, spinel (Crspinel, MUM, Mg-magnetite...– f; see section 4 for details). Phlogopite/kinoshitalite is complexly zoned and commonly forms elongate...to be the dominant eruption mechanism in many Lac de Gras kimberlites (e.g., Nowicki et al., 2004; Kurszlaukis |  | | Book | | discovery of these rocks in the Orange Free State of South Africa. The name is not a new one: In 1928, Percy Wagner...Research Council of Canada, Lakehead University, and De Beers Consolidated Mines are acknowledged for financial...3. Boshof District . . . 1.8.3.1. Roberts Victor 1.8.3.2. New Elands 1.8.4. Winburg District ... 1.8.5...Kroonstad District .. 1.8.6. Swartruggens District. 1.8.7. Dokolwayo .. 1.8.8. Prieska District 1.8.9. Summary...derived from kimberlites were first found in South Africa in October 1869 on the farms Bultfontein and |  | | Journal (article/letter/editorial) | | Kroonstad group II kimberlite (orangeite) cluster, South Africa: Evolution of the magma within the cluster Geoffrey...Rhodes University, P.O. Box 94, Grahamstown, South Africa a r t i c l e i n f o Article history: Received...town of Kroonstad in the Free State Province of South Africa (Fig. 1) and is made up of six pipes and numerous...believed to be unique to the Kaapvaal Craton, South Africa, however recent studies present data indicating...(Chalapathi Rao et al., 2010). Group II kimberlites of South Africa typically contain two end member com⁎ Corresponding |  | | Journal (article/letter/editorial) | | the Premier diatreme root (Cullinan Diamond Mine, South Africa): New insights to mineralogical-genetic classifications...the Premier diatreme root (Cullinan Diamond Mine, South Africa): New insights to mineralogical-genetic classifications...the Premier diatreme root (Cullinan Diamond Mine, South Africa): New insights to mineralogical-genetic classifications...University of AN Johannesburg, Auckland Park 2006, South Africa US 1 CR Ashish Dongre1, * and Sebastian...Introduction The ca. 1153 Ma Premier kimberlite pipe in South Africa is a classic example of a large (~32 hectares) |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Golovin, Alexander V., Sharygin, Igor S., Pearson, D. Graham, Kamenetsky, Maya, Gornova, Marina A. (2019) Polymineralic inclusions in kimberlite-hosted megacrysts: Implications for kimberlite melt evolution. Lithos, 336. 310-325 doi:10.1016/j.lithos.2019.04.004 | Journal (article/letter/editorial) | | up to 1400 °C; Bussweiler et al., 2016, 2018; NU De Bruin, 2005; Gurney et al., 1979; Harte and Gurney...kimberlite cluster ~150 km north of the main Lac de Gras kimberlite field in the Slave Craton (Cookenboo...in the Ekati property, which is located in the Lac de Gras kimberlite field in the Slave Craton. The Leslie...(UV9774-cpx, UV-AVG). All samples were collected from mine dumps, which represent different sections of the...cm in size) of a single olivine megacryst from a mine dump of the unserpentinised Udachnaya-East kimberlite |  | | Journal (article/letter/editorial) | | Cambrian Gahcho Kue kimberlite cluster (Slave craton, northern Canada). This Group-IA kimberlite is a multiphase...Occasional samples with diopside ± melilite may reflect local heterogeneities in the bulk composition or separate...rocktype, it also varies significantly in response to local chemical heterogeneities and to the composition...variability in phlogopite compositions is due to very local diffusion-controlled crystallization, and not to...isotopiques à propos de la kimberlite 5034 de l’agglomération de kimberlites de Gahcho Kue (d’âge cambrien |  | | Journal (article/letter/editorial) | | of the extensive Devonian magmatic event of the northern Baltic Shield and Kola Peninsula. Two main groups...crust ŽWhite et al., 1995., e.g., South Africa, West Africa, northern Canada, central USA and Eastern Siberia...2 kimberlites are thought to be confined to South Africa. However, Mahotkin and Skinner Ž1998. have suggested...widespread Devonian ultramafic magmatic event in the northern Baltic Shield. 3. Petrography and mineral chemistry...solution from phlogopite towards the brittle mica kinoshitalite. The Mga ranges from 0.89 for the cores to 0 |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Kjarsgaard, Bruce A., Rodemann, Thomas, Kamenetsky, Maya, Ehrig, Kathy (2020) A genetic story of olivine crystallisation in the Mark kimberlite (Canada) revealed by zoning and melt inclusions. Lithos, 358. 105405 doi:10.1016/j.lithos.2020.105405 | Journal (article/letter/editorial) | | Keywords: Kimberlite Olivine Zoning Melt inclusion Lac de Gras or Slave Craton a b s t r a c t Elucidating...zoned olivine crystals from the Mark kimberlite (Lac de Gras, Canada). Olivine typically consists of xenocrystic...study of fresh olivine in the Mark kimberlite (Lac de Gras, Canada) provides new insights into different...diamondiferous Mark kimberlite is located in the Lac de Gras kimberlite field, which is situated in the Archean...lesser amounts of macrocrystic phlogopite (with kinoshitalite rims), Cr-pyrope, 111°10'W 109°13‘W 64°53'N |  | | 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...Cr-spl no estimate Bussweiler et al., 2016 [44] Lac de Gras kimberlites, Slave craton, Canada cpx, grt...[45] Monastery kimberlite, Kaapvaal craton, South Africa ol cc, phl, spl (low Al & Cr), prv, srp, fresh/devitrified... 4.5–6.0 GPa Abersteiner et al., 2019 [46] Lac de Gras & Jericho kimberlites, Slave craton, Canada; |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Golovin, Alexander V., Sharygin, Igor S., Giuliani, Andrea, Rodemann, Thomas, Spetsius, Zdislav V., Kamenetsky, Maya (2019) Djerfisherite in kimberlites and their xenoliths: implications for kimberlite melt evolution. Contributions to Mineralogy and Petrology, 174 (1) doi:10.1007/s00410-018-1540-8 | Journal (article/letter/editorial) | | obtained from the mine dumps of the Bultfontein (Group I, or archetypal) kimberlite (South Africa) and comprise...Roberts Victor orangeite (or Group II kimberlite; South Africa). 3. Nine kimberlite rock samples from the Udachnaya-East...Bultfontein kimberlite (Group I), Kaapvaal Craton (South Africa) ~ 84 Ma (Allsopp and Barrett 1975) Petrography...orthopyroxene, garnet, Cr–spinel and Craton (South Africa) minor clinopyroxene. Olivine and orthopy128...monticellite, spinel, perovskite, phlogopite/ kinoshitalite, apatite and accessory pyrochlore (Na,Ca)2Nb2O6(OH |  | | Journal (article/letter/editorial) | | deuteric carbonate phases in hypabyssal kimberlite, Lac de Gras field, Northwest Territories, Canada Mark R...Cretaceous to Paleogene hypabyssal intrusions from the Lac de Gras kimberlite field indicate that the carbonates...isotopes; Calcite; Dolomite; Primary carbonate; Lac de Gras; Slave Province ⁎ Corresponding author. E-mail...hypabyssal kimberlite from eight bodies from the Lac de Gras field. They recognized that these hypabyssal...idiomorphic crystals of Sr and Ba-rich calcite in the Lac de Gras kimberlites. They interpreted this calcite to |
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