 | | Journal (article/letter/editorial) | | 1978 Mineralogy of the Elwin Bay kimberlite, SomersetIsland, N.W.T., Canada Rocsn H. MITcHBI-rDepartment...Uniuersity Thunder Bay, Ontario, Canada Abstract of by the presence The Etwin Bay kimberliteis a sma...texturallythe "roundedphenocrysts" as smallergroundmass kimberlite. in this as xenocrysts and garnet xenoliths lherzolite...vincehasbeen Compositions of minerals in the kimberlite were by Mitchell(1976),andis analogous brieflydescribed...(Finger and Hadidiacos, kimber- automated of kimberlite,micaceous dikesand diatremes 1972) and the Bence |  | | Journal (article/letter/editorial) | | Iron in monticellite as an oxygen barometer for kimberlite magmas Audrey Le Pioufle • Dante Canil Received:...groundmass of kimberlites. A new oxygen barometer for kimberlite magmas is calibrated based on the Fe content...of monticellite, CaMgSiO4, in equilibrium with kimberlite liquids in experiments at 100 kPa from 1,230...NNO?1.7. A range of Mg/(Mg ? Fe2?) (Mg#) for kimberlite melts of 0.46–0.88 was derived from the application...Victoria, 3800 Finnerty Road, Victoria, BC V8W 3P6, Canada e-mail: dcanil@uvic.ca Mg# is broader and less |  | Smith, C.B., Allsopp, H.L., Garvie, O.G., Kramers, J.D., Jackson, P.F.S., Clement, C.R. (1989) Note on the UPb perovskite method for dating kimberlites: Examples from the Wesselton and De Beers mines, South Africa, and Somerset Island, Canada. Chemical Geology: Isotope Geoscience section, 79 (2). 137-145 doi:10.1016/0168-9622(89)90016-x | Journal (article/letter/editorial) | | and De Beers mines, South Africa, and Somerset Island, Canada C.B. SMITH’, ‘Bernard H.L. ALLSOPP’p*...and De Beers mines, South Africa, and Somerset Island, Canada. Chem. Geol. (Isot. Geosci. Sect.), 79:...previously reported U-Pb perovskite method of dating kimberlite has been substantially improved by obtaining...age of 89 Ma was obtained from the Wesselton kimberlite and one of two De Beers Mine samples, while a...Mines is 81 Ma. An age of - 105 Ma for a Somerset Island kimberlite is in agreement with a Rb-Sr errorchron |  | Wu, Fu-Yuan, Yang, Yue-Heng, Mitchell, Roger H., Li, Qiu-Li, Yang, Jin-Hui, Zhang, Yan-Bin (2010) In situ U–Pb age determination and Nd isotopic analysis of perovskites from kimberlites in southern Africa and Somerset Island, Canada. Lithos, 115 (1) 205-222 doi:10.1016/j.lithos.2009.12.010 | Journal (article/letter/editorial) | | from kimberlites in southern Africa and Somerset Island, Canada Fu-Yuan Wu a,⁎, Yue-Heng Yang a, Roger...of Geology, Lakehead University, Thunder Bay, Ontario, Canada P7B 5E1 a r t i c l e i n f o Article...U–Pb ages Nd isotopes Perovskite Kimberlite Southern Africa Canada a b s t r a c t Determination of...emplacement ages and initial isotopic composition of kimberlite by conventional isotopic methods using bulk rock...twelve samples from 7 kimberlites from Somerset Island, Canada have been selected for in situ perovskite |  | Zaccarini, F., Thalhammer, O. A.R., Princivalle, F., Lenaz, D., Stanley, C. J., Garuti, G. (2007) DJERFISHERITE IN THE GULI DUNITE COMPLEX, POLAR SIBERIA: A PRIMARY OR METASOMATIC PHASE?. The Canadian Mineralogist, 45 (5) 1201-1211 doi:10.2113/gscanmin.45.5.1201 | Journal (article/letter/editorial) | | rocks, including kimberlites, maÞc xenoliths in kimberlite, peralkaline ultramaÞc, maÞc and syenite rocks...was described in several kimberlites from Russia, Canada and South Africa (Dobrovol’skaya et al. 1975, Clarke...(Henderson et al. 1999) plots in the Þeld of kimberlite. The three published compositions of djerÞsherite...Guli (Siberia) and Ile Cadieux, Monteregian Hills (Canada) show that djerÞsherite found in carbonatitic rocks...alkaline rocks (maÞc– ultramaÞc and felsic) and kimberlite. Individual symbols: occurrences with fewer than |  | TAKECHI, Yasushi, KUSACHI, Isao, NAKAMUTA, Yoshihiro, KASE, Katsuo (2000) Nickel-bearing Djerfisherite in Gehlenite-Spurrite Skarn at Kushiro, Hiroshima Prefecture, Japan. Resource Geology, 50 (3) 179-184 doi:10.1111/j.1751-3928.2000.tb00067.x | Journal (article/letter/editorial) | | terrestrial samples including kimberlite, mafic xenolithes in kimberlite, peralkaline ultramafic, mafic...7: kimberlite, Yakutia, Russia (Henderson et al., 1999), 8: Elwin Bay kimberlite, Somerset Island, Northchemical...composition. The number of K in west Territories, Canada (Clarke et al., 1994). the formula unit, for example...occurrences. In the melilite skarns from the Qala-Dizeh region, northeast Iraq, and contact-metamorphosed calcareous...metasomatic djerfisherites. In the Elwin Bay monticellite kimberlite, Canada, however, djerfisherite occurs |  | | Journal (article/letter/editorial) | | Springer-Verlag1978 Garnet Lherzolites From Somerset Island, Canada and Aspects of the Nature of Perturbed...Department of Geology,LakeheadUniversity,Thunder Bay, Ontario, Canada P7B 5El Abstract. Garnet lherzolite xenoliths...similar petrography and mineralogy are found in the Elwin Bay, Nanorluk, and Amayersuk kimberlites. The xenoliths...perturbed geotherm existed in this region at the time of kimberlite intrusion. The formation of perturbed...xenoliths derived from above and below the point of kimberlite liquid segregation. The lower temperature limbs |  | | Journal (article/letter/editorial) | | American craton: mantle xenolith evidence from Somerset Island kimberlites S.S. Schmidberger ) , D. Francis...UniÕersity, 3450 UniÕersity Street, Montreal, Quebec, Canada H3A 2A7 Received 23 March 1998; received in revised...Abstract The recently discovered Nikos kimberlite on Somerset Island, in the Canadian Arctic, hosts an unusually...beneath the Canadian Arctic. A large number of kimberlite-hosted peridotites from the Kaapvaal craton in...feature of the cratonic upper mantle beneath Somerset Island. q 1999 Elsevier Science B.V. All rights reserved |  | | Journal (article/letter/editorial) | | VOL. 58, PP. 496-501 Monticellite in the Gwena kimberlite (Shaba, Zaire): evidence of late-magmatic crystallization...established it as a fine grained constituent in many kimberlite matrices (e.g. Clement et al., 1975; Mitchell...composition of well-developedmonticellite in the Gwena kimberlite, Shaba, Z~re. SHORT COMMUNICATIONS 497 Fro...ilmenite (white). On the Kundulungu Plateau, some 20 kimberlite pipes are known, cropping out roughly along two...monticellite. Petrographic characteristics. The Gwena kimberlite is dark grey and remarkably fresh. It contains |  | | Report (issue) | | Talnakh area, Noril’sk region, western Siberia; Udachnaya and other kimberlite pipes, Sakhan; the Inagli...On Dupezeh Mountain, near Hero Town, Qala-Dizeh region, northeastern Iraq. From the Ilı́maussaq intrusion...origin of djerfisherite from the Elwin Bay kimberlite, Somerset Island, Northwest territories. Can. Mineral |  | Bragagni, A., Luguet, A., Fonseca, R.O.C., Pearson, D.G., Lorand, J.-P., Nowell, G.M., Kjarsgaard, B.A. (2017) The geological record of base metal sulfides in the cratonic mantle: A microscale 187 Os/ 188 Os study of peridotite xenoliths from Somerset Island, Rae Craton (Canada) Geochimica et Cosmochimica Acta, 216. 264-285 doi:10.1016/j.gca.2017.04.015 | Journal (article/letter/editorial) | | study of peridotite xenoliths from Somerset Island, Rae Craton (Canada) A. Bragagni, A. Luguet, R.O.C. Fonseca...study of peridotite xenoliths from Somerset Island, Rae Craton (Canada), Geochimica et Cosmochimica Acta...STUDY OF PERIDOTITE XENOLITHS FROM SOMERSET ISLAND, RAE CRATON (CANADA) A. Bragagni1, 2*, A. Luguet1, R...Atmospheric Sciences, University of Alberta, Edmonton, Canada 4 Laboratoire de Planétologie et Géodynamique...Durham, Durham, UK 6 Geological Survey of Canada, Ottawa, Canada *: Corresponding author: abragagn@uni-koeln |  | Sharygin, Victor V., Golovin, Alexander V., Pokhilenko, Nikolai P., Kamenetsky, Vadim S. (2007) Djerfisherite in the Udachnaya-East pipe kimberlites (Sakha-Yakutia, Russia): paragenesis, composition and origin. European Journal of Mineralogy, 19 (1) 51-63 doi:10.1127/0935-1221/2007/0019-0051 | Journal (article/letter/editorial) | | Udachnaya-East kimberlite pipe, including several varieties of kimberlite and a kimberlite-hosted phlogopite-spinel...lherzolite xenolith. In both kimberlite breccia and monticellite kimberlite djerfisherite is a common groundmass...association with magnetite and pyrrhotite in the kimberlite groundmass, and together with carbonates, Na-K-chlorides...origin of djerfisherite in the Udachnaya-East kimberlite groundmass, at shallow depths and at T e 800oC...evolved kimberlite magma infiltrating into lithospheric xenoliths or reactions of evolved kimberlite fluids/melts |  | | Journal (article/letter/editorial) | | Europe, India, Central Africa, North America, and Canada) and alkali basalts (Southeastern Siberia, Mongolia...East Siberia, Northeastern Europe (Archangelsk region and Finland), South Africa, India, and North America...Lithos 74 (2004) 1–20 Fig. 2. Location of (1) kimberlite pipes and (2) alkali-basalt volcanoes from which...in the basement of the Arctic platform on Somerset Island), Archaean (the Limpopo belt) and Proterozoic...and Archaean basement of the Arctic platform in Canada has similar values: the averages are 7.5 F 0.1 |  | 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) | | Sciences NU SC a MA Building, Edmonton, Alberta, Canada T6G 2E3 Central Science Laboratory, University...monticellite and its potential significance to kimberlite melt evolution, we PT examine the petrography...minimally altered hypabyssal monticelliterich Leslie (Canada) and Pipe 1 (Finland) kimberlites. In these kimberlites...represent snapshots of a variably differentiated kimberlite melt that evolved in-situ D towards carbonatitic...they are a more significant component of the kimberlite melt than commonly recorded by CE whole-rock |  | | Journal (article/letter/editorial) | | and Mir pipes), Proterozoic orogeny (Somerset Island, N.W.T., Canada; Gibeon Province, Namibia; and the...are illustrated below for Somerset Island N.W.T., Canada, the Gibeon kimberlite province, Namibia, the Colorado...geotherms presented below, range from 160 km on Somerset Island to 145 km on the Colorado Plateau, with intermediate...depleted in "basaltoid" components from the Matsoku kimberlite pipe in Northern Lesotho, and the 0.044 |0,W/m3...pressures of the low-temperature xenoliths from the kimberlite pipes of Northern Lesotho. In the same way, the |  | 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) | | exceptional preservation enable investigation of kimberlite magma compositions and alteration pathways of...basaltic pyroclasts) and viscous kimberlite lavas. Keywords: Extrusive kimberlite, Igwisi Hills, serpentine...MA NU SC R IP T 2005; Coe et al. 2008). Kimberlite volcanism is generally confined to cratons older...Forte a la Corne, Canada, Zonneveld et al. 2004) and in a tuff ring in the Kasami kimberlite pipe, Mali (Hawthorne...dispersed in a finegrained matrix. Mineral phases in kimberlite comprise complex mixtures of primary magmatic |  | | Journal (article/letter/editorial) | | 3749/canmin.46.4.1079 POTASSIUM SULFIDES IN KIMBERLITE-HOSTED CHLORIDE–“NYEREREITE” AND CHLORIDE CLASTS...previously described in the groundmass of the host kimberlite. Rasvumite occurs in chloride–“nyerereite” and...octahedral crystals at the contact with host kimberlite. In chloride clasts and the host kimberlites...order of magnitude. Unlike djerfisherite in the kimberlite groundmass, that in the chloride clasts is generally...djerfisherite, chloride clasts, carbonatite, kimberlite, rubidium, cesium, Udachnaya pipe, Yakutia, Russia |  | Kamenetsky, Vadim S., Kamenetsky, Maya B., Weiss, Yakov, Navon, Oded, Nielsen, Troels F.D., Mernagh, Terrence P. (2009) How unique is the Udachnaya-East kimberlite? Comparison with kimberlites from the Slave Craton (Canada) and SW Greenland. Lithos, 112. 334-346 doi:10.1016/j.lithos.2009.03.032 | Journal (article/letter/editorial) | | Udachnaya-East kimberlite? Comparison with kimberlites from the Slave Craton (Canada) and SW Greenland...2009 Available online 31 March 2009 Keywords: Kimberlite Olivine Melt inclusions Alkali carbonates Chlorine...Contrary to existing dogma that the Udachnaya-East kimberlite was either contaminated by the crustal sediments...idea of alkali- and chlorine enrichment of the kimberlite parental melt by studying olivine-hosted melt...serpentine in kimberlites from the Slave Craton, Canada (Gahcho Kué, Jericho, Aaron and Leslie pipes) and |  | Armstrong, John P., Wilson, Mark, Barnett, Robert L., Nowicki, Tom, Kjarsgaard, Bruce A. (2004) Mineralogy of primary carbonate-bearing hypabyssal kimberlite, Lac de Gras, Slave Province, Northwest Territories, Canada. Lithos, 76 (1) 415-433 doi:10.1016/j.lithos.2004.03.025 | Journal (article/letter/editorial) | | carbonate-bearing hypabyssal kimberlite, $ $$ Lac de Gras, Slave Province, Northwest Territories, Canada , John P. Armstrong...Yellowknife, NT, Canada Department of Earth Sciences, Memorial University, St. John’s, NL A1B 3X5, Canada c R.L...Lambeth, ON, Canada d Mineral Services, Vancouver, BC, Canada e Geological Survey of Canada, Ottawa, ON...ON, Canada Received 21 June 2003; accepted 4 January 2004 Available online 28 May 2004 Abstract A suite...mineralogy and are archetypal or Group 1 kimberlite. Five kimberlite localities are identified as calcite-bearing |  | 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) | | kimberlites and their xenoliths: implications for kimberlite melt evolution Adam Abersteiner1 · Vadim S. Kamenetsky1...diversity reflects the composition of the host kimberlite melt and/or interacting metasomatic medium. In...transporting kimberlite melt; (2) direct crystallisation of djerfisherite from the kimberlite melt in groundmass...groundmass or due to kimberlite melt infiltration into xenoliths. The occurrence of djerfisherite in kimberlites...evidence that the metasomatising/infiltrating kimberlite melt/fluid was enriched in K and Cl. We suggest |  | Kamenetsky, Vadim S., Kamenetsky, Maya B., Sharygin, Victor V., Faure, Kevin, Golovin, Alexander V. (2007) Chloride and carbonate immiscible liquids at the closure of the kimberlite magma evolution (Udachnaya-East kimberlite, Siberia) Chemical Geology, 237 (3) 384-400 doi:10.1016/j.chemgeo.2006.07.010 | Journal (article/letter/editorial) | | liquids at the closure of the kimberlite magma evolution (Udachnaya-East kimberlite, Siberia) Vadim S. Kamenetsky...(b0.5 wt.% H2O), kimberlite samples from the Udachnaya-East pipe (Daldyn–Alakit region, Siberia). The groundmass...thermometamorphic effects on the contacts with the host kimberlite. The chloride–carbonate nodules demonstrate liquid...the chloride–carbonate nodules from residual kimberlite melts, pooled after exhaustion of the silicate...inherited from the kimberlite parental magma, and it can be responsible for the kimberlite low liquidus temperatures |  | | Journal (article/letter/editorial) | | Udachnaya-East Pipe, Yakutia: Some Aspects of Kimberlite Magma Evolution during Late Crystallization Stages...solution. The inclusions are derivatives of the kimberlite melt. The complex silicate–carbonate–salt composition...inclusions in olivine from the kimberlite suggests that the composition of the kimberlite melt near the surface...Cr2O3, and TiO2. Hence, when crystallizing, the kimberlite melt evolved toward carbonatite compositions...compositions. The last derivatives of the kimberlite melt had an alkaline carbonatite composition. DOI: 10.1134/S086959110702004X |  | | Journal (article/letter/editorial) | | Zaccarini et al. 2007) and kimberlites (e.g., Elwin Bay, Udachnaya; Clarke et al. 1994; Sharygin et al...Solar System formation), and likely in a different region to the chondrites (Alexander et al. 2008), are...higher still. Published djerfisherite data in kimberlite samples (Clarke et al. 1977, 1994; Sharygin et...is variably present in megacrysts, xenoliths, kimberlite groundmass, and as inclusions within diamonds...contents. As all kimberlite djerfisherites plotted in Figures 3 and 4 (e.g., Frank Smith kimberlite, Clarke et |  | | Book | | H. Mitchell Lakehead University Thunder Bay, Ontario, Canada SPRINGER SCIENCE+BUSINESS MEDIA, LLC Library...petrology. Bibliography: p. Includes index. I. Kimberlite. I. Title. QE462.K5M58 1986 552' .3 ISBN 978-1-4899-0570-3...critique of the advances which have been made in kimberlite studies over the last twenty-five years. Kimberlites...in this book will serve to stimulate further kimberlite studies. Some of the hypotheses discussed will...University and for his help in the continuance of my kimberlite research. This book would not have been possible |  | | Journal (article/letter/editorial) | | formation of serpentine and carbonate minerals in kimberlite bodies. Carbonates and minerals of the serpentine...serpentine-carbonate mineralization to de duce the primary kimberlite composition, and also to improve mineralogical...a single-phase body (composed of one type of kimberlite), there are no sharp fluctuations in the serpentine...depth; this also occurs within the in dividual kimberlite varieties in the multi phase pipe. The relation...and carbonate varies con siderably from one kimberlite body to an other. For example, serpentine predominates |
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