 | | Journal (article/letter/editorial) | | varieties of perovskite from kimberlites of the Lac de Gras field (Northwest Territories, Canada) A. R. CHAKHMOURADIAN*...Ontario, Canada P7B 5E1 ABSTR ACT In hypabyssal and crater-facies kimberlites of the Lac de Gras kimberlite...kimberlite field, perovskite occurs as reaction-induced rims on earlier-crystallized Ti-bearing minerals (magnesian...accessory phases found in an assemblage with perovskite include titanite, monazite(Ce), witherite, strontium-apatite...types of perovskite can be distinguished on the basis of composition: (I) REE-Nb-Al-poor perovskite with |  | | Journal (article/letter/editorial) | | kimberlite volcanic activity in the Lac de Gras kimberlite field, Canada and some recommendations for kimberlite...kimberlite volcanic activity in the Lac de Gras kimberlite ïŹeld, Canada and some recommendations for kimberlite...VOLCANIC PT ACTIVITY IN THE LAC DE GRAS KIMBERLITE FIELD, RI CANADA AND SOME RECOMMENDATIONS FOR ...of Alberta, Edmonton, T6G MA 1 * TE D 2E3, CANADA Corresponding author (chiranjeeb.sarkar@ualberta...a key role in diamond exploration within the Lac de Gras kimberlite field. Nonetheless, emplacement age |  | | Journal (article/letter/editorial) | | Edmonton, Alberta, Canada T6G 2E3 b Geological Survey of Canada, Ottawa, Ontario, Canada K1A OE8 Abstract...(Alberta, Nunavut, Northwest Territories, Colorado/Wyoming). Ten new U â Pb perovskite/mantle zircon and...Jurassic and Permian kimberlite fields. New U â Pb perovskite results for the 614.5 F 2.1 Ma Chicken Park and...Kennady Lake, Canada) to the Tertiary (Mwadui, Tanzania; Ekati and Diavik in Lac de Gras, Canada). There are...encapsulated in a finer-grained matrix of calcite, perovskite, phlogopite, and spinel ( F apatite, monticellite |  | | Journal (article/letter/editorial) | | Edmonton, Alberta, Canada T6G 2E3 b Geological Survey of Canada, Ottawa, Canada K1A 0E8 Received 21...region of Ontario to Eocene kimberlites in the Lac de Gras field, N.W.T. Based on a compilation of more...more than 4000 km from Somerset Island in northern Canada through the Fort aÌ la Corne field in Saskatchewan...for kimberlites and related rocks, especially in Canada. The number of new kimberlite discoveries continues...(Saskatchewan), Kirkland Lake (Ontario/QueÌbec), Lac de Gras (N.W.T.), Somerset Island (Nunavut), State Line |  | | Journal (article/letter/editorial) | | values between these carbonates and the coexisting perovskite, a robust magmatic phase. However, this study...87Sr/86Sr ratios of primary carbonates and coexisting perovskite (e.g., calcite laths-shaped crystals with 87Sr/86Sr...within uncertainty to those of vein calcite in the De Beers kimberlite). This complexity emphasises the...Cullinan/Premier), Australia (Melita), Finland (Pipe 1) and Canada (Grizzly, Koala) (see Table S1 in supplementary...kimberlites (e.g., Wesselton, Pipe 1, Koala), dykes (e.g., De Beers, Jagersfontein) and carbonate-rich sills (i |  | | Journal (article/letter/editorial) | | Victoria, 3800 Finnerty Road, Victoria, BC V8W 3P6, Canada e-mail: dcanil@uvic.ca Mg# is broader and less...(2007) studied the partitioning of Fe3? between perovskite and liquid over a range of fO2 and developed...(Canil and Bellis 2007). Nonetheless, kimberlite perovskite can have a complex paragenesis, and few such...at low pressures (\0.5 GPa) after spinel and perovskite but prior to calcite and serpentine (Mitchell...wide crystallization ranges of monticellite and perovskite allow for the examination of kimberlite fO2 along |  | 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/ 10.1016/j...mineral-hosted inclusions in the Mark kimberlite (Lac de Gras, Canada) Adam Abersteiner1,2*, Vadim S. Kamenetsky1...5 Geological Survey of Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada 6 Department of Earth...Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada 7 Jo ur na 3 BHP Olympic Dam, Adelaide, SA |  | 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) | | diamondiferous kimberlites and tectonic settings: Ekati (Canada), Alto Paranaiba (Brazil) and Kaalvallei (South...tectonic settings, including the Slave craton, Canada (Ekati: Grizzly, Koala), the Brasilia mobile belt...localities: Grizzly and Koala (Ekati property), Lac de Gras, Canada; Limpeza-18 and Tres Ranchos-04, Alto Paranaiba...kimberlites are located in the Lac de Gras kimberlite field of the Slave craton, Canada. The studied samples derive...Ranchos-04 (407/409/004/6) were obtained from the De Beers collection. Samada and New Robinson are two |  | Creaser, Robert A., GrĂŒtter, Herman, Carlson, Jon, Crawford, Barbara (2004) Macrocrystal phlogopite RbâSr dates for the Ekati property kimberlites, Slave Province, Canada: evidence for multiple intrusive episodes in the Paleocene and Eocene. Lithos, 76 (1) 399-414 doi:10.1016/j.lithos.2004.03.039 | Journal (article/letter/editorial) | | the Ekati property kimberlites, Slave Province, Canada: evidence for multiple intrusive episodes in the...Alberta, 126 ESB, Edmonton, AB, Canada T6G 2E3 b Mineral Services Canada, 205-930 Harbourside Drive, North...Vancouver BC, Canada V7P 3S7 c BHP Billiton Diamonds Inc., #8-2604 Enterprise Way Kelowna BC, Canada V1X 7Y5...from the Ekati property of the Lac de Gras region, Slave Province, Canada. These new data show that kimberlite...Ma) to Middle Eocene time ( f 45 Ma). Older, perovskite-bearing kimberlites from Ekati extend this age |  | | Journal (article/letter/editorial) | | attributes of kimberlite magmatism at Ekati, Northwest Territories, Canada Grant Lockhart a,*, Herman GruÌtter...Kelowna, B.C., Canada V1X 7Y5 b Mineral Services Canada Inc., Vancouver, B.C., Canada Received 27 June...lithos.2004.03.029 The Lac de Gras kimberlite province occurs in a northwest trending zone, with dimensions...the central portion of the Archean Slave craton, Canada (Fig. 1). More than 270 confirmed kimberlites have...greater Lac de Gras kimberlite field within the central Slave craton, Northwest Territories and Nunavut |  | 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...minimally altered hypabyssal monticelliterich Leslie (Canada) and Pipe 1 (Finland) kimberlites. In these kimberlites...Primary multiphase melt inclusions in monticellite, perovskite and Mg-magnetite contain assemblages dominated...a lesser extent Fe-Mg-oxides in monticellite, perovskite and Mg-magnetite. Based on the ACCEPTED MANUSCRIPT...accessory components that include phlogopite, perovskite, spinel, monticellite, apatite and other minor |  | | Journal (article/letter/editorial) | | kimberlite localities from SC southern Africa, Canada, Greenland and Russia. These data show that the...g., Kimberley) and, potentially field (e.g., Lac de Gras), form a single compositional trend. This suggests...compositions of olivine rims in kimberlites from SC Lac de Gras that were emplaced as hypabyssal root-zones,...kimberlitic olivine 3.1. Data filtering PT E 3.3. Canada D 3.2. Southern Africa 3.4. West Greenland ...dolomite), serpentine, olivine, monticellite, spinel, perovskite, Mg-ilmenite, apatite and PT E phlogopite. |  | | Journal (article/letter/editorial) | | in hypabyssal kimberlite, Lac de Gras field, Northwest Territories, Canada Mark R. Wilson a,â, Bruce...Newfoundland, Canada A1B 3X5 b 601 Booth St., Geological Survey of Canada, Ottawa, Ontario, Canada Received...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 â Corresponding author. E-mail...hypabyssal kimberlite from eight bodies from the Lac de Gras field. They recognized that these hypabyssal |  | Crawford, Barbara, Hetman, Casey, Nowicki, Tom, Baumgartner, Mike, Harrison, Sara (2009) The geology and emplacement history of the Pigeon kimberlite, EKATI Diamond Mine, Northwest Territories, Canada. Lithos, 112. 501-512 doi:10.1016/j.lithos.2009.06.032 | Journal (article/letter/editorial) | | Pigeon kimberlite, EKATI Diamond Mine, Northwest Territories, Canada Barbara Crawford a,â, Casey Hetman b...4920-52nd Street, Yellowknife, NT, Canada, X1A 3T1 Mineral Services Canada Inc., 205-930 Harbourside Drive...Drive, North Vancouver, BC, Canada V7P 3S7 a r t i c l e i n f o Article history: Received 7 October 2008...kimberlite is located approximately 6 km to the northwest of the Koala cluster of the EKATI Diamond Mine... forming part of the Lac de Gras kimberlite ïŹeld, Northwest Territories, Canada. The EKATI kimberlites |  | 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) | | hypabyssal kimberlite, $ $$ Lac de Gras, Slave Province, Northwest Territories, Canada , John P. Armstrong a...Yellowknife, NT, Canada Department of Earth Sciences, Memorial University, St. Johnâs, 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...Cretaceous to Eocene hypabyssal kimberlites from the Lac de Gras field were studied in order to understand better |  | 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) | | Sciences Building, Edmonton, Alberta T6G 2E3, Canada g CE A.P. Vinogradov Institute of Geochemistry...the Diavik, RI Jericho, Leslie (Slave Craton, Canada) and Udachnaya-East (Siberian Craton, Russia) kimberlites...groundmass, and consist of olivine, calcite, spinel, perovskite, phlogopite and apatite (± serpentine, alkali-carbonates...up to 1400 °C; Bussweiler et al., 2016, 2018; NU De Bruin, 2005; Gurney et al., 1979; Harte and Gurney...megacrysts from the Diavik, Jericho, Leslie kimberlites (Canada), and olivine and clinopyroxene megacrysts from |  | | Journal (article/letter/editorial) | | constitute constitute fragments diamond Slave craton, Canada (modified after Bussweiler et al. [44];ettheir...Polymineralic diamondmine, mine, Slave craton, Canada (modified after Bussweiler al. Figure [44]; their...2002 [47] Diavik A154N kimberlite, Slave craton, Canada cpx Ti-rich phl, ol, cc, Cr-spl, silicate glass...Bussweiler et al., 2016 [44] Lac de Gras kimberlites, Slave craton, Canada cpx, grt inclusions in cpx:...Abersteiner et al., 2019 [46] Lac de Gras & Jericho kimberlites, Slave craton, Canada; Udachnaya-East kimberlite |  | Nowicki, Tom, Crawford, Barbara, Dyck, Darren, Carlson, Jon, McElroy, Ross, Oshust, Peter, Helmstaedt, Herb (2004) The geology of kimberlite pipes of the Ekati property, Northwest Territories, Canada. Lithos, 76 (1) 1-27 doi:10.1016/j.lithos.2004.03.020 | Journal (article/letter/editorial) | | kimberlite pipes of the Ekati property, Northwest Territories, Canada Tom Nowicki a,*, Barbara Crawford b...Mineral Services Canada Inc., 205-930 Harbourside Drive, North Vancouver, BC, Canada V7P3S7 b BHP Billiton...Kelowna, Canada c BHP Billiton Diamonds Inc., Yellowknife, Canada d Queens University, Kingston, Canada Received...characteristics of kimberlites on the Ekati property, NWT, Canada. To date 150 kimberlites have been discovered on...Keywords: Volcaniclastic; Diamond; Geochemistry; Lac de Gras; Emplacement; Eruption 1. Introduction The Ekati |  | Tappert, Ralf, Stachel, Thomas, Harris, Jeffrey W., Shimizu, Nobumichi, Brey, Gerhard P. (2005) Mineral inclusions in diamonds from the Panda kimberlite, Slave Province, Canada. European Journal of Mineralogy, 17 (3) 423-440 doi:10.1127/0935-1221/2005/0017-0423 | Journal (article/letter/editorial) | | diamonds from the Panda kimberlite, Slave Province, Canada RALF TAPPERT1, 4*, THOMAS STACHEL1, JEFFREY W....University of Alberta, Edmonton, Alberta, T6G 2E3, Canada of Earth Sciences, Centre for Geosciences, University...Eocene Panda kimberlite (Ekati Mine, Northwest Territories, Canada) were analyzed for the major and trace...(most likely originally included as Ca-silicate perovskite), however, is regarded as evidence for a lower...diamonds, lithospheric mantle, lower mantle, Lac de Gras, Slave craton. 1. Introduction Syngenetic mineral |  | 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 applications...a b c Geological Survey of Canada, 601 Booth Street, Ottawa, ON, Canada K1A 0E8 Earth Sciences, Durham...Sciences, University of Alberta, Edmonton, AB, Canada T6G 2E3 a r t i c l e i n f o Article history:...geochemical analyses of hypabyssal kimberlite from the Lac de Gras ïŹeld. Screens using Yb versus Al2O3 and ln Si/Al...of peridotite contamination. We utilize the Lac de Gras data suite to calculate, by two different methods |  | Abersteiner, Adam, Kamenetsky, Vadim S., Kamenetsky, Maya, Goemann, Karsten, Ehrig, Kathy, Rodemann, Thomas (2018) Significance of halogens (F, Cl) in kimberlite melts: Insights from mineralogy and melt inclusions in the Roger pipe (Ekati, Canada) Chemical Geology, 478. 148-163 doi:10.1016/j.chemgeo.2017.06.008 | Journal (article/letter/editorial) | | mineralogy and melt inclusions in the Roger pipe (Ekati, Canada) Adam Abersteiner, Vadim S. Kamenetsky, Maya Kamenetsky...mineralogy and melt inclusions in the Roger pipe (Ekati, Canada), Chemical Geology (2017), doi: 10.1016/j.chemgeo...mineralogy and melt inclusions in the Roger pipe (Ekati, Canada) Adam Abersteinera*, Vadim S. Kamenetskya, Maya...archetypal) Roger SC kimberlite (Ekati cluster, Canada). The studied samples contain abundant anhedral-toeuhedral...(MUM), Mg-magnetite, pleonaste, Cr-spinel), and perovskite along with abundant secondary alteration phases |  | Griffin, W. L., Doyle, B. J., Ryan, C. G., Pearson, N. J., Suzanne, Y. O., Davies, R., Kivi, K., Van Achterbergh, E., Natapov, L. M. (1999) Layered Mantle Lithosphere in the Lac de Gras Area, Slave Craton: Composition, Structure and Origin. Journal of Petrology, 40 (5) 705-727 doi:10.1093/petroj/40.5.705 | Journal (article/letter/editorial) | | 705â727 1999 Layered Mantle Lithosphere in the Lac de Gras Area, Slave Craton: Composition, Structure and... KENNECOTT CANADA EXPLORATION INC., 200 GRANVILLE STREET, VANCOUVER, B.C. V6C 1S4, CANADA 4 KENNECOTT...KENNECOTT CANADA EXPLORATION INC., 1300 WALSH STREET, THUNDER BAY, ONT. P7E 4X4, CANADA RECEIVED APRIL 17...used to map the lithospheric mantle beneath the Lac de Gras area in the central part of the Slave Province...composition and sharply defined structure of the Lac de Gras lithosphere are unique within our current knowledge |  | | Journal (article/letter/editorial) | | archetypal kimberlites from southern Africa, Lac de Gras (Canada) and Alto Paranaiba (Brazil), which exhibit... olivine rinds from the Koala kimberlite 2 (Canada) display an inverse correlation between ï€18O and...source of kimberlites from southern Africa, Lac de Gras and Alto Paranaiba, or that the recycled material...the analysis of pristine magmatic phases (e.g., perovskite) either physically separated or by in situ techniques...and argument applies to kimberlites from Lac de Gras (Canada) of Cretaceous to Eocene age (Tappe et al |  | Masun, K.M., Doyle, B.J., Ball, S., Walker, S. (2004) The geology and mineralogy of the Anuri kimberlite, Nunavut, Canada. Lithos, 76 (1) 75-97 doi:10.1016/j.lithos.2004.03.022 | Journal (article/letter/editorial) | | kimberlite, Nunavut, Canada K.M. Masun *, B.J. Doyle, S. Ball, S. Walker Kennecott Canada Exploration Inc...Suite 354, 200 Granville Street, Vancouver, BC, Canada V6C 1S4 Received 25 June 2003; accepted 6 January...and groundmass spinel, phlogopite, apatite and perovskite in a serpentine â calcite â phlogopite matrix...There is some similarity between Anuri and the Lac de Gras kimberlites, with variable types of VK forming...the Rockinghorse joint venture between Kennecott Canada Exploration (Kennecott) and Tahera (Tahera). The |  | | Journal (article/letter/editorial) | | hypabyssal and pyroclastic units in the Diavik mine, Canada Madeline Tovey, Andrea Giuliani, David Phillips...hypabyssal and pyroclastic units in the Diavik mine, Canada, LITHOS(2020), https://doi.org/10.1016/ j.lithos...hypabyssal and pyroclastic units in the Diavik mine, Canada Madeline Toveya*, Andrea Giuliania,b, David Phillipsa...Street, Vancouver, British Columbia V5K 1R1, Pr Canada. Jo u rn al *Corresponding author; email, toveym@student...South kimberlite pipes in the Diavik Mine (Lac de Gras, Canada). These localities host exceptionally fresh |
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