 | | Journal (article/letter/editorial) | | University, 3450 University Street, Montreal, Quebec, Canada H3A 2A7 Stornoway Diamond Corporation, Suite #800-625...#800-625 Howe St., Vancouver, British Columbia, Canada V6C 2T6 a r t i c l e i n f o Article history:...kimberlite. The Foxtrot kimberlite Field in Northern Québec is comprised of at least three distinct kimberlite...Field is a diamond play in the Otish Mountains of Québec that is operated by a joint venture between Stornoway...similar to the 629± 29 Ma age reported for the Wemindji kimberlites that are approximately 400 km to the |  | | Journal (article/letter/editorial) | | evolved hypabyssal kimberlite sills from Wemindji, Quebec, Canada: insights into the process of flow differentiation...emplaced in granite located near the town of Wemindji (Quebec, Canada) range from 2 cm to 1.2 m in thickness...modal mineralogy with respect to the abundances of spinel, apatite, phlogopite and dolomite. Olivine is the...between phlogopite and kinoshitalite end members. Spinel compositions mainly represent the Cr-poor members...kimberlite magma will crystallize these phases. The Wemindji kimberlites offer insight into the process of |  | Tappe, Sebastian, Brand, Natalie B., Stracke, Andreas, van Acken, David, Liu, Chuan-Zhou, Strauss, Harald, Wu, Fu-Yuan, Luguet, Ambre, Mitchell, Roger H. (2017) Plates or plumes in the origin of kimberlites: U/Pb perovskite and Sr-Nd-Hf-Os-C-O isotope constraints from the Superior craton (Canada) Chemical Geology, 455. 57-83 doi:10.1016/j.chemgeo.2016.08.019 | Journal (article/letter/editorial) | | Sr-Nd-HfOs-C-O isotope constraints from the Superior craton (Canada) Sebastian Tappe, Natalie B. Brand, Andreas Stracke...Sr-Nd-Hf-Os-C-O isotope constraints from the Superior craton (Canada), Chemical Geology (2016), doi: 10.1016/j.chemgeo...SR-ND-HF-OS-C-O ISOTOPE CONSTRAINTS FROM THE SUPERIOR CRATON (CANADA) PT Sebastian Tappe a *, Natalie B. Brand a,...955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada * AC Corresponding author (S.Tappe): Department...629 Ma ‘barren’ Wemindji kimberlites on the eastern Superior craton in Quebec, Canada. 1 ACCEPTED MANUSCRIPT |  | Sarkar, Chiranjeeb, Kjarsgaard, Bruce A., Pearson, D. Graham, Heaman, Larry M., Locock, Andrew J., Armstrong, John P. (2018) Geochronology, classification and mantle source characteristics of kimberlites and related rocks from the Rae Craton, Melville Peninsula, Nunavut, Canada. Mineralogy and Petrology, 112. 653-672 doi:10.1007/s00710-018-0632-5 | Journal (article/letter/editorial) | | from the Rae Craton, Melville Peninsula, Nunavut, Canada Chiranjeeb Sarkar 1 & Bruce A. Kjarsgaard 2 & D...Aviat and Qilalugaq, Melville Peninsula, north-east Canada. Magmatic rocks from the Aviat pipes have geochemical...mineralogical characteristics (e.g., phlogopite and spinel compositions, highly enriched Sr isotopic signature)...presence of primary clinopyroxene, phlogopite and spinel compositions] that are similar to features displayed...T6G 2E3, Canada 2 Geological Survey of Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada 3 Lucara |  | | Journal (article/letter/editorial) | | Sciences de la Terre, Université du Québec à Chicoutimi, G7H 2B1, Canada Abstract. We present high-precision...a matrix of olivine, monticellite, perovskite, spinel, mica, calcite, and serpentine, whereas Group II...include Krichterite, Mn-rich ilmenite, Cr-rich spinel zoned to Ti-magnetite, apatite and perovskite in...to euhedral olivine, monticellite, perovskite, spinel, mica, apatite, calcite and serpentine), major...(O’Brien, 2015), and (v) spinels from upper mantle spinel lherzolites and rare chromites plotting within |  | | Journal (article/letter/editorial) | | de Eglise, Sainte-Foy, Quebec, Canada G1V 3V9 Ashton Mining of Canada Inc., Unit 123-930 West 1st Street...Street, North Vancouver, BC, Canada V7P 3N4 Received 21 June 2003; accepted 4 January 2004 Available online...exploration program launched by Ashton Mining of Canada and SOQUEM. Nine bodies have been discovered within...forsterite in a groundmass of serpentine, phlogopite, spinel and perovskite, establishing an ultramafic igneous... This age is similar to that reported for the Wemindji kimberlites (629 F 29 Ma; Letendre et al., 2003) |  | 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) | | mineralogy, which is composed of monticellite, spinel, perovskite, baddeleyite, ilmenite, apatite, calcite...glagolevite is reported in kimberlites. Groundmass spinel exhibits atoll-textures and is composed of a magnesian...olivine and primary inclusions in monticellite, spinel, perovskite, apatite and interstitial calcite are...Kimberlite, Sill, Magma Differentiation, Atoll-Spinel, Melt Inclusion ACCEPTED MANUSCRIPT 1. Introduction...(Zimbabwe; Hawthorne, 1968), Amon (Canada; Tappe et al., 2014), Wemindji (Canada; Zurevinski and Mitchell, 2011) |  | Castillo-Oliver, Montgarri, Giuliani, Andrea, Griffin, William L., O’Reilly, Suzanne Y., Drysdale, Russell N., Abersteiner, Adam, Thomassot, Emilie, Li, Xian-Hua (2020) New constraints on the source, composition, and post-emplacement modification of kimberlites from in situ C–O–Sr-isotope analyses of carbonates from the Benfontein sills (South Africa) Contributions to Mineralogy and Petrology, 175 (4) doi:10.1007/s00410-020-1662-7 | Journal (article/letter/editorial) | | been described in other kimberlites including the Wemindji sills (Zurevinski and Mitchell 2011), the Wesselton...complex including an olivine-rich layer, an olivine–spinel layer, and Contributions to Mineralogy and Petrology...Kimberley, where the Benfontein complex is located a spinel–perovskite layer. However, what makes the Benfontein...vol.% of the sample, respectively. Small (< 5 µm) spinel grains are often included in olivine. The groundmass...grains) includes abundant apatite, atoll-shaped spinel, perovskite, and rare monticellite, with interstitial |  | | Journal (article/letter/editorial) | | 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada ABSTRACT Carbonatites are redefined using a m...distincts, et formées à des profondeurs différentes du manteau supérieur selon des taux distincts de fusion...saturés ou sous-saturés et dérivés surtout à partir du manteau lithosphérique ayant subi une métasomatose...influential petrologists Reginald Daly (1933) and James Shand (1943) remained adamant that these “igneous...carbonatites, e.g., nepheline syenite at Mt. Brome (Canada) or Kangerdlugssuaq (Greenland), lamproite (Leucite |  | | Journal (article/letter/editorial) | | Koala kimberlite (Canada): Constraints from melt inclusions in olivine and Cr-spinel, and groundmass carbonate...Tasmania 7001, Australia BHP Billiton, Vancouver, BC, Canada Central Science Laboratory, University of Tasmania...Palaeogene Koala pipe (Ekati cluster, Slave craton, Canada) is focused on reconstruction of the kimberlite...primary crystal (apatite, Cr-spinel) and melt inclusions. The magmatic spinel phenocrysts are strongly zoned... with the cores having the same composition as spinel inclusions in olivine. The primary and pseudo-secondary |  | | Journal (issue) | | FEATURE ARTICLE______________ 208 Diamonds in Canada B. A. Kjarsgaard and A. A. Levinson This article...Miyahira-Smith Contributing Editors John I. Koivula James E. Shigley Subscriptions Debbie Ortiz (800) 421-7250...Switzerland John I. Koivula Carlsbad, California James E. Shigley Carlsbad, California C. S. Hurlbut,...Massachusetts A. A. Levinson Calgary, Alberta, Canada Christopher P. Smith Lucerne, Switzerland Editor...still a newcomer as a supplier of rough diamonds, Canada is now among the world’s most important diamond |  | | Journal (article/letter/editorial) | | 1093/petrology/egn034 Crystallization of Groundmass Spinel in Kimberlite P. L. ROEDER1* AND D. J. SCHULZE2...QUEEN’S UNIVERSITY, KINGSTON, ONTARIO K7L 3N6, CANADA 2 DEPARTMENT OF GEOLOGY, UNIVERSITY OF TORONTO...COLLEGE, MISSISSAUGA, ONTARIO L5L 1C6, CANADA Groundmass spinel grains in 46 kimberlite and related rocks...of the spinel analyses are classified as high-chromium chromite (Chr) and magnesioulvo« spinel^magnetite...significant stages of spinel growth. There are also a significant number of spinel grains that are classified |  | Giuliani, Andrea, Tappe, Sebastian, Rooney, Tyrone O., McCoy-West, Alex J., Yaxley, Gregory M., Mezger, Klaus (2017) Editorial: The role of intraplate magmas and their inclusions in Earth’s mantle evolution. Chemical Geology, 455. 1-5 doi:10.1016/j.chemgeo.2017.03.019 | Journal (article/letter/editorial) | | Neoproterozoic kimberlites from eastern Canada (Renard and Wemindji clusters). Their data, which include...pyroxenite xenoliths from the northern Slave craton in Canada from a wide range of equilibration pressures. Geochemical... Trestrail et al., (this volume) investigate a spinel peridotite xenolith suite from a lithosphere-scale...Peccerillo, A., Tiepolo, M., De Astis, G., (Garnet)-spinel peridotite xenoliths from Mega (Ethiopia): Evidence...mantle lithosphere, Voyageur kimberlite, Arctic Canada. Chemical Geology, this volume. Spetsius, Z.V. |  | Zhang, Dongyang, Zhang, Zhaochong, Santosh, M., Cheng, Zhiguo, He, Huang, Kang, Jianli (2013) Perovskite and baddeleyite from kimberlitic intrusions in the Tarim large igneous province signal the onset of an end-Carboniferous mantle plume. Earth and Planetary Science Letters, 361. 238-248 doi:10.1016/j.epsl.2012.10.034 | Journal (article/letter/editorial) | | diamondbearing rock reported in Xinjiang (Fig. 1b, c; Du, 1983). The kimberlitic cluster trends NWW-SEE within...oval-shaped body with dimensions of ca. 180 m 100 m (Du, 1983; Su, 1991). The Wajilitag kimberlitic intrusions...olivine, apatite, perovskite, baddeleyite, garnet, spinel, rutile, magnetite, calcite and graphite (Supplementary...controversial and has been loosely described as kimberlite (Du, 1983; Wang and Su, 1987; Su, 1991), brecciated phlogopite...has been described in Benfontein, Mbuji-Mayi, Wemindji, Mengyin and Fuxian kimberlites (ScatenaWachel |  | Kaur, Gurmeet, Mitchell, Roger H., Ahmed, Suhel (2018) Mineralogy of the Vattikod lamproite dykes, Ramadugu lamproite field, Nalgonda District, Telangana: A possible expression of ancient subduction-related alkaline magmatism along Eastern Ghats Mobile Belt, India. Mineralogical Magazine, 82 (1) 35-58 doi:10.1180/minmag.2017.081.045 | Journal (article/letter/editorial) | | Lakehead University, Thunder Bay, Ontario P7B 5E1, Canada Geological Survey of India, Southern Region, Hyderabad...electron microscope at Lakehead University, Ontario, Canada. All raw X-ray data were acquired using a beam...amphibole, clinopyroxene, K-feldspar ( pseudoleucite), spinel, apatite, monazite, calcite, baryte, titanite,...phlogopites commonly have inclusions of apatite, spinel, 39 GURMEET KAUR ET AL. FIG. 4. BSE images:...not been observed in any of the Vattikod dykes. Spinel occurs as euhedral-to-subhedral crystals (<50 µm) |  | Xu, Jingyao, Melgarejo, Joan, Li, Qiuli, Abat, Lisard, Castillo-Oliver, Montgarri (2020) Magma Mingling in Kimberlites: Evidence from the Groundmass Cocrystallization of Two Spinel-Group Minerals. Minerals, 10 (9) 829 doi:10.3390/min10090829 | Journal (article/letter/editorial) | | Evidence from the Groundmass Cocrystallization of Two Spinel-Group Minerals Jingyao Xu 1,2 , Joan Carles Melgarejo... Several generations of olivine, ilmenite, and spinel-group minerals are described. Early olivine and...first rim in which rutile, geikielite, and spinel s.s. (spinel sensu stricto) cocrystallized. The in situ...consists of olivine, spinel s.s., a magnesian ulvöspinel–ulvöspinel–magnetite (MUM) spinel, calcite, and dolomite...activity of Si is suggested by the crystallization of spinel s.s. instead of phlogopite in the groundmass. The |  | | Journal (article/letter/editorial) | | Cullinan/Premier), Australia (Melita), Finland (Pipe 1) and Canada (Grizzly, Koala) (see Table S1 in supplementary...groundmass phases, such as apatite, perovskite, spinel, monticellite or olivine micro-phenocrysts (Fig...inclusions of groundmass phases (apatite, monticellite, spinel, perovskite). Laths of calcite have been described...between phlogopite (phl), zoned olivine (ol) and spinel (spl) in the Bultfontein kimberlite. b Groundmass...kimberlites, with calcite (cal), dolomite (dol), spinel, phlogopite, apatite (ap), perovskite (prv) and |  | | Journal (article/letter/editorial) | | Victoria, 3800 Finnerty Road, Victoria, BC V8W 3P6, Canada e-mail: dcanil@uvic.ca Mg# is broader and less...rocks contain phenocrysts of fresh olivine with spinel inclusions. We develop an oxygen barometer for...crystallizing at low pressures (\0.5 GPa) after spinel and perovskite but prior to calcite and serpentine...studied, but decrease in size with increasing fO2. Spinel appears as minute grains at NNO [ ?1 at 1,280°C...De Gras area, in the Archean Slave Province of Canada (Fedortchouk and Canil 2004). The Leslie and Aaron |  | | Journal (article/letter/editorial) | | for volatile-rich ultramafic rocks. Groundmass spinel US compositions are transitional between magnesian...major element compositional trends of groundmass spinel and phlogopite in the kimberlite PT dykes deviate... CR Analytical Laboratories Ltd in Vancouver (Canada) by liberation of CO2 gas from the AN detection...mesostasis consisting of monticellite, phlogopite, spinel, ilmenite, perovskite, apatite, AC calcite, and...ultramafic magma types it typically crystallizes after spinel and AN perovskite (with some temporal overlap) |  | Soltys, Ashton, Giuliani, Andrea, Phillips, David, Kamenetsky, Vadim S., Maas, Roland, Woodhead, Jon, Rodemann, Thomas (2016) In-situ assimilation of mantle minerals by kimberlitic magmas — Direct evidence from a garnet wehrlite xenolith entrained in the Bultfontein kimberlite (Kimberley, South Africa) Lithos, 256. 182-196 doi:10.1016/j.lithos.2016.04.011 | Journal (article/letter/editorial) | | magmatic kimberlite minerals, particularly olivine and spinel, which represent early crystallising phases in...inclusions in olivine and spinel grains from kimberlites worldwide (Russia, Canada and Greenland) contain...sampled by the A154 MA kimberlite (Lac de Gras, Canada – Araujo et al., 2009; van Achterbergh et al.,...fine-grained (~ 10-50 μm) oxide minerals (Mg-magnetite, Cr-spinel and picro-ilmenite), CE olivine, sulphides (pentlandite...single-mineral inclusions of Mgrich magnetite, Cr-spinel and picro-ilmenite in addition to rare, < 2 μm |  | Poitras, Stéphane P., Pearson, D. Graham, Hardman, Matthew F., Stachel, Thomas, Nowell, Geoff M., Cairns, Scott (2018) Evidence for a 200 km thick diamond-bearing root beneath the Central Mackenzie Valley, Northwest Territories, Canada? Diamond indicator mineral geochemistry from the Horn Plateau and Trout Lake regions. Mineralogy and Petrology, 112. 719-736 doi:10.1007/s00710-018-0641-4 | Journal (article/letter/editorial) | | Central Mackenzie Valley, Northwest Territories, Canada? Diamond indicator mineral geochemistry from the...Earth Sciences Building, Edmonton, AB T6G 2E3, Canada 2 Department of Earth Sciences, Science Labs...Geological Survey, 5310 44 St, Yellowknife, NT X1A 1K3, Canada Since the discovery of the first diamondiferous...lithospheric mantle underlying other parts of northern Canada, such as the area west of the Slave Craton margin...Horn Plateau region by the Geological Survey of Canada (GSC; Day et al. 2007). GSC and Northwest Territories |  | Munteanu, Marian, Wilson, Allan H., Costin, Gelu, Yao, Yong, Lum, Jullieta Enone, Jiang, Shao-Yong, Jourdan, Fred, Chunnett, Gordon, Cioacă, Mihaela-Elena (2017) The Mafic–Ultramafic Dykes in the Yanbian Terrane (Sichuan Province, SW China): Record of Magma Differentiation and Emplacement in the Emeishan Large Igneous Province. Journal of Petrology, 58 (3) 513-538 doi:10.1093/petrology/egx025 | Journal (article/letter/editorial) | | generation of olivine, hornblende and biotite. Chrome-spinel occurs mostly as inclusions in the olivine phenocrysts...with Mg# values of 720–939. The Cr number of the spinel is 062–076. Clinopyroxene is Carich (076–089...modelling suggest magma evolution by olivine þ Cr-spinel fractionation at P 5 kbar. Elemental and Sr–Nd...previous studies. These contain olivine and Cr-spinel crystals fractionated at depth from the primary...residues of pure melt to infer the line of olivine–Cr-spinel fractionation. references therein), was tectonically |  | Kargin, Alexey Vladimirovich, Nosova, Anna Andreevna, Sazonova, Ludmila Vyacheslavovna, Tretyachenko, Vladimir Vasilievich, Larionova, Yulia Olegovna, Kovalchuk, Elena Vladimirovna (2021) Ultramafic Alkaline Rocks of Kepino Cluster, Arkhangelsk, Russia: Different Evolution of Kimberlite Melts in Sills and Pipes. Minerals, 11 (5) 540 doi:10.3390/min11050540 | Journal (article/letter/editorial) | | toward tetraferriphlogopite and the transition of spinel compositions from magmatic chromite to magnesian...province; kimberlite; kimberlitic sills; phlogopite; spinel; melt evolution Accepted: 16 May 2021 Published:...the Slave Province in the Northwest Territories, Canada; and in the Arkhangelsk diamond province (ADP)...microphenocrystal olivine, minor phlogopite, and chromium spinel set in a very fine-grained groundmass composed...phlogopite–kinoshitalite (solid solution), perovskite, spinel, apatite, carbonate (calcite and/or dolomite), |  | | Journal (article/letter/editorial) | | talc), oxides (several generations of ilmenite and spinel, rutile, perovskite, rare titanates of the crichtonite...Rct—richterite, Rlg—redledgeite; Rt—rutile; Spl—spinel; Srp—serpentine; Tphl—tetraferriphlogopite; YI...vein-like (“necklace”) garnet (Cr-rich pyrope), and Cr-spinel (magnesio-chromite) occurring interstitial to enstatite...grains also host another type of diopside and Cr-spinel inclusions, which may be discordant with the preferred...magnesio-chromite are presented in subordinate amounts. Other spinel-group minerals, sulfides (djerfisherite, pentlandite) |  | | Journal (article/letter/editorial) | | variable degree consumed by kelyphite composed of spinel clinopyroxene and orthopyroxene (Fig. 2c). Garnets...Mgs magnesite, Dol dolomite, Nrs norsethite, Spl spinel, Chr chromite, Thr thorianite, Urn uraninite, Gr...clinopyroxene (omphacite), garnet II, graphite, spinel, Cl-apatite, thorianite/uraninite, monazite, pentlandite...peridotites, mainly those reported from the MSI hosted in spinel (Zaccarini et al. 2004; Naemura et al. 2008), also...of pargasite, dolomite and magnesite along with spinel suggests pressures below c. 1.8–2 GPa and a still |
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