 | | Book | | ABSTRACTS contributed to THE SECOND INTERNATIONAL KIMBERLITE CONFERENCE Bishop's Lodge, Santa Fe, October...■•A- V\ f I ' , A. DIAMONDIFEROUS SOUTHERN KIMBERLITE OF THE WAJRAKHARUR AREA, INDIA. Jagannadham...known in India from antiquity the presence of kimberlite has been the subject of much specu¬ lation and...were described, but were discounted as being kimberlite (Foote, 1889; Lake, 1890). Subsequently...and Mehr, 1953) but generally con¬ sidered that kimberlite was not present. However, in 1963 Rao and Phadtre |  | | Report (volume) | | parental or derivative ? 85 DAWSON, J. B. The kimberlite clan: relationship with olivine and leucite lamproites...TARNEY, J. & JORON, J. L. Geochemistry of ocean island basalts from the South Atlantic: Ascension, Bouvet...lavas and associated granite xenoliths of Ascension Island 269 FITTON, J. G. The Cameroon line, West Africa:...Outline of the petroIogy of the Kenya rift alkaline province 293 MACDONALD,R. Quaternary peralkaline silicic...petrochemistry of the northern part of the Chilwa alkaline province, Malawi 335 BOWDEN, P., BLACK, R., MARTIN, R |  | | Journal (article/letter/editorial) | | of the Archean Karelian craton by 600 Ma old kimberlite magmatism. In fact, our Re–Os data are the first...indicated that the lithospheric mantle at this locality has a layered structure, comprising at least three...plateau for the Kostomuksha (Puchtel et al., 1998), island arc for the Sumozero–Kenozero (Puchtel et al.,...kimberlites are indicated by a large star; other known kimberlite occurrences by smaller symbol. 1.91 and 1.87...lithospheric mantle beneath the Kaavi-Kuopio kimberlite province is structurally and compositionally stratified |  | Gardiner, Nicholas J., Kirkland, Christopher L., Hollis, Julie A., Cawood, Peter A., Nebel, Oliver, Szilas, Kristoffer, Yakymchuk, Chris (2020) North Atlantic Craton architecture revealed by kimberlite-hosted crustal zircons. Earth and Planetary Science Letters, 534. 116091 doi:10.1016/j.epsl.2020.116091 | Journal (article/letter/editorial) | | North Atlantic Craton architecture revealed by kimberlite-hosted crustal zircons Nicholas J. Gardiner a...zircon xenocrysts from a Neoproterozoic (557 Ma) kimberlite which intruded the Mesoarchean Akia Terrane....perhaps during late Archean terrane assembly. Kimberlite-hosted peridotite rhenium depletion model ages...geological map of the Nuuk area, with kimberlite 323 locality highlighted. The “Eoarchean terranes” contain...orthogneiss assemblages and granitic derivatives. The locality of sample G91-63 of Friend et al. (1996) at the |  | | Journal (article/letter/editorial) | | magmatic and deuteric carbonate phases in hypabyssal kimberlite, Lac de Gras field, Northwest Territories, Canada...Paleogene hypabyssal intrusions from the Lac de Gras kimberlite field indicate that the carbonates are well-preserved...values for whole-rock calcite in calcite-bearing kimberlite and for micro-samples of calcite from individual...segregations in calcite- and dolomite-bearing kimberlite generally vary from 6 to 9‰, consistent with...magmatic temperatures (e.g., N 750 °C) from a kimberlite melt. In contrast, higher δ18O values of 9 to |  | | Book | | Introduction COMPLEXES By P. J. WyLuir The Duke Island ultramafic complex, southeastern Alaska By T. N... By P. J. WYLLIE A review of the geology of kimberlite By J. B. DAwson Introduction Definition Field...kimberlites Emplacement of kimberlite World distribution of kimberlites Age of kimberlite Tectonic environment...251 251 253 258 259 261 Contents IV. V. Kimberlite pipes of northeastern Arizona A. Introduction...emplacement Bit Age Geochemistry and origin of kimberlite A. B. C. D. 9. II. E. Comparison with other |  | Tappe, Sebastian, Budde, Gerrit, Stracke, Andreas, Wilson, Allan, Kleine, Thorsten (2020) The tungsten-182 record of kimberlites above the African superplume: Exploring links to the core-mantle boundary. Earth and Planetary Science Letters, 547. 116473pp. doi:10.1016/j.epsl.2020.116473 | Journal (article/letter/editorial) | | Available online xxxx Editor: R. Dasgupta Keywords: kimberlite origin plate tectonics ultradeep diamonds primordial...182 W/184 W measurements for a large suite of kimberlite volcanic rocks from across the African tectonic...African LLSVP, or ‘large low shear-wave velocity province’, is widely suspected to store early Earth remnants...as the ultimate source of global Phanerozoic kimberlite magmatism. Our results show, however, that kimberlites...anomalous 182 W may simply suggest that low-volume kimberlite magmas are not derived from hot lower mantle |  | | Book | | petrological recorder 9 Island Arc-Oceanic Plateau Collision;Santa Isabel, Solomon Islands 10 The petrology...and mineralisation of the plutonic roots of an island arc magmatic system - the Greenhills Complex, New...Siberian Platform: imaging the lithosphere T he kimberlite fields of the northern Siberian Platform sample...exploration contents. LAM-ICPMS data show that kimberlite zircons have distinctive trace element patterns...Cathodoluminescence image of zircon from Yakutian kimberlite (Russia) shows inherited core with thin oscillatory |  | | Journal (article/letter/editorial) | | homepage: www.elsevier.com/locate/chemgeo Editorial Kimberlite, carbonatite, and potassic magmatism as part...source-forming processes and the evolution of kimberlite, carbonatite, and potassic magmas. We believe...often artificial, conceptual boundaries between kimberlite, carbonatite, and potassic magma formation (Tappe...numerous studies have demonstrated that both kimberlite, carbonatite, and potassic magmas are among our...Kröner, 2008; Shirey and Richardson, 2011). Hence, kimberlite, carbonatite, and potassic magmatism appear to |  | | Journal (article/letter/editorial) | | Accepted Manuscript Insights into kimberlite petrogenesis and mantle metasomatism from a review of the...this article as: Andrea Giuliani , Insights into kimberlite petrogenesis and mantle metasomatism from a review...pertain. ACCEPTED MANUSCRIPT Insights into kimberlite petrogenesis and mantle metasomatism from a review...and minor element analyses of olivine from 17 kimberlite localities from SC southern Africa, Canada...olivine cores is sourced from the products of kimberlite metasomatism at mantle depths (e.g., sheared |  | Phillips, David, Harris, Jeffrey W., de Wit, Michiel C. J., Matchan, Erin L. (2018) Provenance history of detrital diamond deposits, West Coast of Namaqualand, South Africa. Mineralogy and Petrology, 112. 259-273 doi:10.1007/s00710-018-0568-9 | Journal (article/letter/editorial) | | yield ages approaching the time(s) of source kimberlite emplacement, which can be used to constrain the...additional placer deposits. Keywords Diamond . Kimberlite . 40Ar/39Ar . Provenance Introduction Editorial...cover Dwyka Group km Kaapvaal Craton Fig. 1 Locality map of southern Africa showing the outline of...Jacobs et al. 2008). Note that some individual kimberlite and orangeite localities are shown in Fig. 5...Location Locality examples References Kimberlite Orangeite Orangeite Orangeite Orangeite Kimberlite Kimberlite |  | Giuliani, Andrea, Phillips, David, Kamenetsky, Vadim S., Fiorentini, Marco L., Farquhar, James, Kendrick, Mark A. (2014) Stable isotope (C, O, S) compositions of volatile-rich minerals in kimberlites: A review. Chemical Geology, 374. 61-83 doi:10.1016/j.chemgeo.2014.03.003 | Journal (article/letter/editorial) | | March 2014 Editor: David R. Hilton Keywords: Kimberlite Carbonate Serpentine Carbon-oxygen-sulphur isotopes...isotopes a b s t r a c t The composition of primary kimberlite melts and, in particular, the absolute and relative...CO2 and H2O) are controversial issues, because kimberlite melts entrain and interact with abundant mantle...altering kimberlitic rocks. A global compilation of kimberlite carbonate data (δ13C = −11.9 to +0.2‰, median...mantle carbonates (δ18O ~ 6–9‰). Variations in kimberlite carbon isotopic compositions occur on regional |  | | Journal (article/letter/editorial) | | isotope variations in Cr-poor megacrysts from kimberlite DANIEL J. SCHULZE,1,* JOHN R. VALLEY,2 DAVID...Cr-poor megacrysts from kimberlite demonstrate that the megacrysts and kimberlite hosts are genetically...higher ␦18O). Actual samples of potential Group II kimberlite source rocks (e.g., mica/ amphibole veined peridotites)...mantle garnets from the Cr-poor megacryst suite in kimberlite (e.g., Nixon and Boyd, 1973; Eggler et al., 1979;...fractional crystallization products of their host kimberlite or related magmas and their radiogenic “isotope |  | | Journal (article/letter/editorial) | | in late 2004 of the diamondiferous Garnet Lake kimberlite in the Sarfartoq area. Single-clinopyroxene thermobarometry...thermobarometry reveals a cold geotherm during kimberlite magmatism (600 to 550 Ma ago), with diamond stable...dominantly from within the graphite stability field. Kimberlite float collected at these sample sites contains...results in associated kimberlite float. The diamondiferous Garnet Lake kimberlite was discovered in one...aillikite, mela-aillikite, lamproite, carbonatite and kimberlite (Mitchell et al., 1999; Tappe et al., 2008 and |  | | Report (chapter) | | cinder cones, dykes, sills and diatremes. Whereas kimberlite diatremes tend to be carrot shaped, the shape...to melting. In contrast with alkali basalt and kimberlite melts which are apparently produced from the...Prairie Creek, Murfreesboro, Arkansas, from a kimberlite (albeit anomalous) (Miser & Ross 1923; Bolivar...far discovered, dwarfing many of the S African kimberlite pipes (typically 20-80 ct per 100 tons in grade.../ NHB(DII 9 9 MUR FOR ]W 9 HM 9 CARBONATITES KIMBERLITE A 9 SANDSTONES t i l ~ N 9 NSW -- SHALES ULTRAMAFIC |  | Walker, R.J, Carlson, R.W, Shirey, S.B, F.R, Boyd (1989) Os, Sr, Nd, and Pb isotope systematics of southern African peridotite xenoliths: Implications for the chemical evolution of subcontinental mantle. Geochimica et Cosmochimica Acta, 53 (7) 1583-1595 doi:10.1016/0016-7037(89)90240-8 | Journal (article/letter/editorial) | | compositions for the Letseng-la-terae (Group I) kimberlite are within the range observed for rocks from...whereas these isotopic compositions in a Group II kimberlite from the Bellsbank group suggest a source for...trace-element contamination of the samples by the host kimberlite. MANTLE Re-0s SYSTEMATICS The geochemical behavior...0 FIG. 2a. Effects of mixing of mantle with kimberlite or average continental crust on the Nd and OS...Letseng-la-terse kimberlite data reported here was used as representative of Group I kimberlite, and the data |  | | Book (volume) | | AmericanGeophysicalUnion Washington,D.C. 20009 1979 Kimberlite Conference Preface Since the first edition...was published in 1979, the Third International Kimberlite Conference was held in Clermont-Ferrand in 1982...concerning rocks now misleadingly referred to as Kimberlite will be removea. Diamonds received attention...still there persists the belief that diamonds an• kimberlite are genetically related. And this in spite of...one can separate out the essential minerals of kimberlite. This comment is pertinent to isotopic studies |  | | Journal (article/letter/editorial) | | anhedralmacrocrysts(0'20 mm) and euhedral crystals (0.05 mm) in kimberlite, and as cleavagereplacement products of high...crystallization of primary magmaticchlorite in the kimberlite groundmass. the upper mantle, and phlogopite...chlorite occurs in some diabases three meters of a kimberlite from the De Beers (Lehmann, 1965)and Fawcett...experiments at 5 resulting from fluidization and kimberlite emplacement and l0 kbar at temperaturesabove...variations in Cr2O3content from the Moses Rock kimberlite and the CaneValley carbonatitedikes,Utah. Diopsidic |  | Li, Zhuoyuan, Fedortchouk, Yana, Fulop, Alexandrina, Chinn, Ingrid L., Forbes, Njillan (2018) Positively oriented trigons on diamonds from the Snap Lake kimberlite dike, Canada: Implications for fluids and kimberlite cooling rates. American Mineralogist, 103 (10) 1634-1648 doi:10.2138/am-2018-6496 | Journal (article/letter/editorial) | | from the Snap Lake kimberlite dike, Canada: Implications for fluids and kimberlite cooling rates Zhuoyuan...understood. The uncertainty in the composition of kimberlite melts hampers understanding the composition of...Recent estimates of H2O and CO2 solubility in kimberlite-like magmas suggest very shallow exsolution of...feature of resorption events unique to only some kimberlite magmas. Here we present the first systematic...etch pits on natural diamonds from Snap Lake kimberlite dike, Northwest Territories, Canada. The study |  | | Book (volume) | | Sparks Editors Proceedings of 10th International Kimberlite Conference Volume 1 Dedicated to Roger H. Mitchell...Mitchell Proceedings of 10th International Kimberlite Conference D. Graham Pearson • Herman S. Grütter...Sparks Editors Proceedings of 10th International Kimberlite Conference Volume 1 Special Issue of the Journal...Photograph The 10th International Kimberlite Conference International Kimberlite Conferences (IKCs) are special...146 poster presentations on following topics: Kimberlite geology, origin, evolution and emplacement of |  | | Journal (article/letter/editorial) | | ev i e r. c o m / l o c a t e / l i t h o s Kimberlite and related rocks from Garnet Lake, West Greenland...2009 Available online 25 June 2009 Keywords: Kimberlite Aillikite Orangeite Carbonatite Diamond Mantle...aillikite and the second rock type is a kimberlite. The kimberlite exhibits thin Ba-rich rims (towards kinoshitalite)...chemical and geographic associations between kimberlite, aillikite and carbonatite. © 2009 Elsevier B...has proven to be controversial with carbonate-kimberlite, UML (aillikite) and orangeite identified (e.g |  | | Journal (article/letter/editorial) | | been used to determine the emplacement ages of kimberlite and other alkaline intrusives. Leaching of fresh...lattice. The emplacement age of the Makganyene kimberlite pipe is 121.2 + 1.2 Ma, given by a Rb-Sr isochron...phlogopite mineralogy, indicates that the kimberlite is a Group-II kimberlite. 1. Introduction The task of obtaining...obtaining reliable kimberlite emplacement ages is hindered by a number of geological as well as analytical...analytical problems. Kimberlite intrusions are heterogeneous in that they commonly involve several intrusive |  | | Journal (article/letter/editorial) | | Ar/39Ar Diamond Clinopyroxene inclusion Provenance Kimberlite Namibia a b s t r a c t The west coast of Namibia...40 Ar/39Ar ages approaching the time of source kimberlite eruption. This behaviour is attributed to diffusion...detrital diamonds, in order to determine potential kimberlite sources, craton erosion histories and palaeo-drainage...placer deposits far removed from their original kimberlite/lamproite source(s). Worldwide, there are numerous... Harris / Lithos 112S (2009) 793–805 Fig. 1. Locality map showing the Archaean Kalahari craton, Karoo |  | | Journal (article/letter/editorial) | | immediately prior to entrainment in the enclosing kimberlite, and the array of P - T points defined by an...analysed suite of xenoliths at a particular kimberlite locality taken to represent the upper mantle geotherm...by Nixon and Boyd (in Nixon 1973) from various kimberlite localities in northern Lesotho, southern Africa...garnet lherzolite xenoliths in the Udachnaya kimberlite, USSR, have been shown (Boyd 1984) to have equilibrated...xenolith suite in the Precambrian Premier Mine kimberlite (Danchin and Boyd 1976; Danchin 1979). Secondly |  | | Book | | past tectonic environments (e.g. mid-ocean ridge, island arc) from the compositions of ancient igneous rocks;...subduction-related volcanic rocks is shown in Fig. 1.6. In many island arcs, the potassium content of volcanic rocks increases...0 tion 55 ssocia line a -alka calc Low-K (island 50 line o ass sociation arc tholeiite) as 60...(e.g. mid-ocean ridges, island arcs, back-arc basins, intraplate oceanic islands, large igneous provinces...basalt’ (often abbreviated to ‘MORB’) and ‘ocean-island basalt’ (OIB) being obvious examples. As we shall |
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