 | Tappe, Sebastian, Jenner, George A., Foley, Stephen F., Heaman, Larry, Besserer, Dean, Kjarsgaard, Bruce A., Ryan, Bruce (2004) Torngat ultramafic lamprophyres and their relation to the North Atlantic Alkaline Province. Lithos, 76 (1) 491-518 doi:10.1016/j.lithos.2004.03.040 | Journal (article/letter/editorial) | | represent solid solutions between phlogopite, tetraferriphlogopite, annite and eastonite endmembers. A weak...weak core-rim evolutionary trend toward tetraferriphlogopite with increasing Fe and strongly decreasing...occurs (Fig. 4). Nearly Al-free discrete tetraferriphlogopite rims occur only in aillikites (Fig. 3A and...microphenocrysts. Phlogopite crystals are rimmed by tetraferriphlogopite. The groundmass is dominated by carbonate...olivine. Phlogopite exhibits Fe-rich (bright) tetraferriphlogopite rims. (D) Zoned clinopyroxenes in mela-aillikite |  | Tappe, Sebastian, Steenfelt, Agnete, Heaman, Larry M., Simonetti, Antonio (2009) The newly discovered Jurassic Tikiusaaq carbonatite-aillikite occurrence, West Greenland, and some remarks on carbonatiteākimberlite relationships. Lithos, 112. 385-399 doi:10.1016/j.lithos.2009.03.002 | Journal (article/letter/editorial) | | West Greenland, and some remarks on carbonatiteākimberlite relationships Sebastian Tappe a,b,ā, Agnete Steenfelt...156 Fitzpatrick Hall, Notre Dame, Indiana 46556, USA b c a r t i c l e i n f o Article history: Received...unnecessarily to over-emphasis of carbonatiteākimberlite relationships and provoked extreme ideas such...great part of the range reported for worldwide kimberlite monticellite (Mitchell, 1986; Armstrong et al...gm ā groundmass; Phl ā phlogopite; TFP ā tetraferriphlogopite. groundmass clinopyroxene in orangeites |  | | Journal (article/letter/editorial) | | online 20 June 2012 Keywords: SĆ£o Francisco craton Kimberlite petrology UāPb perovskite geochronology Mantle...sources a b s t r a c t The diamondiferous Brauna kimberlite ļ¬eld is situated in the northeast part of the...UraniumāPb perovskite age determinations of hypabyssal kimberlite material yielded a high-precision emplacement...provides the ļ¬rst evidence for Neoproterozoic kimberlite magmatism in Brazil, and the Brauna kimberlites...diamonds in the SĆ£o Francisco craton. Primary kimberlite mineralogy at Brauna comprises olivine, spinel |  | TAPPE, SEBASTIAN, FOLEY, STEPHEN F., JENNER, GEORGE A., HEAMAN, LARRY M., KJARSGAARD, BRUCE A., ROMER, ROLF L., STRACKE, ANDREAS, JOYCE, NANCY, HOEFS, JOCHEN (2006) Genesis of Ultramafic Lamprophyres and Carbonatites at Aillik Bay, Labrador: a Consequence of Incipient Lithospheric Thinning beneath the North Atlantic Craton. Journal of Petrology, 47 (7) 1261-1315 doi:10.1093/petrology/egl008 | Journal (article/letter/editorial) | | been discussed as though they are varieties of kimberlite (Dawson, 1971; Griffin & Taylor, 1975; Raeside...22 O equivalents; Phl, phlogopite; TFP, tetraferriphlogopite; Bt, biotite; pc, phenocryst; mpc, microphenocryst;... inner mantle and broad rim with narrow tetraferriphlogopite overgrowth (TFP, arrow). (d) Zoned euhedral...may culminate in virtually Al- and Ti-free tetraferriphlogopite rims in the most carbonate-rich samples...samples (Figs 6c and 8a; Table 5). Whereas tetraferriphlogopite is uncommon in kimberlites, the rims reported |  | 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) | | Group I kimberlite. In contrast, Aviat intrusive sheets are similar to āmicaceousā Group II kimberlite (orangeite)...and phlogopite chemistry are similar to Group I kimberlite. UāPb perovskite geochronology reveals that Aviat...breakup of the Rodinia supercontinent. Keywords Kimberlite . Orangeite . Olivine lamproite . Cambrian Introduction...America has several Archean cratons containing kimberlite, including the central Slave craton, which hosts...hosts the richly diamondiferous Lac de Gras kimberlite field (Fipke et al. 1995; Kjarsgaard and Levinson |  | | Book | | org/details/seventhinternati07inte SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE Cape Town, April 1998 EXTENDED ABSTRACTS...Organising Committee of the 7th International Kimberlite Conference takes no responsibility for authorsā...omissions. SOUTH AFRICA SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE SPONSORS The 7IKC Organising Committee...recently discovered kimberlites of the Siberian kimberlite province. 9 K - rich clinopyroxenes as mantle...Preliminary studies. 26 The Complete Phlogopite-Tetraferriphlogopite Series in the Catalao-I and -II Carbonatite |
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