 | WU, FU-YUAN, MITCHELL, ROGER H., LI, QIU-LI, ZHANG, CHANG, YANG, YUE-HENG (2017) Emplacement age and isotopic composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada. Geological Magazine, 154 (2) 217-236 doi:10.1017/s0016756815001120 | Journal (article/letter/editorial) | | composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada F U - Y UA N W U ∗...‡Department of Geology, Lakehead University, Ontario, P7B 5E1, Canada (Received 3 September 2015; accepted...Alkaline rock and carbonatite complexes, including the Prairie Lake complex (NW Ontario), are widely distributed...related to a mantle plume. The Prairie Lake complex is composed of carbonatite, ijolite and potassic nepheline...syenite. Two samples of baddeleyite from the carbonatite yield U–Pb ages of 1157.2 ± 2.3 and 1158.2 ± |  | | Journal (article/letter/editorial) | | of orbicular ijolites from the Prairie Lake complex, Marathon, Ontario: Textural evidence from rare processes...of orbicular ijolites from the Prairie Lake complex, Marathon, Ontario: Textural evidence from rare processes...of orbicular ijolites from the Prairie Lake complex, Marathon, Ontario: SHANNON E. ZUREVINSKI* and ROGER...Department of Geology, Lakehead University, Thunder Bay, ON, CANADA P7B 5E1 *Corresponding author. Telephone:...ijolite at the 1.1 Ga Prairie Lake Carbonatite Complex (Marathon, Ontario, Canada), and is the only known |  | | Journal (article/letter/editorial) | | Perovskite, loparite and Ba-Fe hollandite from the Schryburt Lake carbonatite complex, northwestern Ontario...Ontario, Canada R. GARTHPLATr Department of Geology, Lakehead University, Thunder Bay, Ontario, Canada...ultramafic rocks of the Schryburt Lake carbonatite complex of northwestern Ontario, loparite and Ba-Fe hollandite...hollandite occur in intimate association with perovskite. The host rocks have variable modal proportions of...melilitite clan, in the sense of Mitchell (1993). Perovskite is the principal titanate phase, forming both |  | | Journal (article/letter/editorial) | | Slate Islands, northeastern Lake Superior R. P. SAGE Geological Branch, Ontario Ministry of Natural Resources...Resources, Toronto, Ontario, Canada MSS 1B3 ABSTRACT The Precambrian rocks of the Slate Islands exhibit...alkalic magmatism. Alkalic intrusive events north of Lake Superior occurred on the Slate Islands. These alkalic...alkalic intrusions are represented by a carbonatite dike in the southeast corner of the island and a set...covering a surface area of approximately 39 km 2 in the northeast corner of Lake Superior (Fig. 1), were |  | | Journal (article/letter/editorial) | | of Geology, Lakehead University, Thunder Bay, Ontario P7B 5E1, Canada a r t i c l e i n f o Article...production of Nb, with the primary St. Honoré carbonatite and other sources accounting for only for 7 and...individual petrographically-defined units of carbonatite contain distinct suites of pyrochlore. Bulk rock...10 times or more above those of the primary carbonatite. Commonly, pyrochlores in laterites are fine grained...[Araxá and Catalão-II (Brazil) and St. Honoré (Canada)]. All produce ferroniobium alloy from pyrochlore |  | Chakhmouradian, A. R., Mitchell, R. H., Burns, P. C., Mikhailova, Y., Reguir, E. P. (2008) Marianoite, a new member of the cuspidine group from the Prarie Lake siliconcarbonatite, Ontario. The Canadian Mineralogist, 46 (4) 1023-1032 doi:10.3749/canmin.46.4.1023 | Journal (article/letter/editorial) | | OF THE CUSPIDINE GROUP FROM THE PRAIRIE LAKE SILICOCARBONATITE, ONTARIO Anton R. CHAKHMOURADIAN§ Department...2N2, Canada Roger H. MITCHELL Department of Geology, Lakehead University, 955 Oliver Road, Thunder Bay...Bay, Ontario P7B 5E1, Canada Peter C. BURNS Department of Civil Engineering and Geological Sciences, University...University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada Abstract Marianoite, a new member of the cuspidine...the Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. The mineral forms |  | | Journal (article/letter/editorial) | | DOI 10.1007/s00269-014-0667-z Original Paper Perovskite alteration in kimberlites and carbonatites: the...magmatic perovskite from kimberlite (Iron Hill, Wyoming, USA) and carbonatite (Prairie Lake, Ontario, Canada)...Canada) showed that the early product of perovskite replacement in these samples is kassite, a monoclinic...strongest X-ray diffraction lines, measured for the Prairie Lake material, are [dobs in Å (I) hkl]: ~3.29 (100)...also commonly observed as direct products of perovskite alteration in silica-undersaturated igneous rocks |  | Drenth, Benjamin J., Souders, A. Kate, Schulz, Klaus J., Feinberg, Joshua M., Anderson, Raymond R., Chandler, Val.W., Cannon, William F., Clark, Ryan J. (2020) Evidence for a concealed Midcontinent Rift-related northeast Iowa intrusive complex. Precambrian Research, 347. 105845pp. doi:10.1016/j.precamres.2020.105845 | Journal (article/letter/editorial) | | aeromagnetic and gravity anomalies over a ~16,000 km2 area of 32 northeast Iowa and southeast Minnesota have...including the MRS-related Coldwell Complex of Ontario. The largest of the zoned intrusions are 48 ~40...Midcontinent Rift System (MRS) are exposed in the Lake 62 Superior region, where they host several different...detail for several decades. However, away from the Lake Superior 65 region, the MRS is covered by Paleozoic...penetrations of Proterozoic rocks in the region. The area of the 4 86 NEIIC is covered by 200-700 m of |  | Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., Shpachenko, A. K. (2006) Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44 (4) 929-942 doi:10.2113/gscanmin.44.4.929 | Journal (article/letter/editorial) | | Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada Dmitriy R. ZOZULYA and Arkadiy...banalsite, nepheline, syenite, ijolite, alteration, Prairie Lake, Pilansberg, Sakharjok, Gremyakha–Vyrmes, Turiy... néphéline, syénite, ijolite, altération, lac Prairie, Pilansberg, Sakharjok, Gremyakha–Vyrmes, Turiy...nepheline syenite and alkaline ultramafic rocks: the Prairie Lake complex of alkaline rocks and carbonatites,... Superior Alkaline Province, northwestern Ontario, Canada, the Pilansberg peralkaline complex, South |  | | Journal (article/letter/editorial) | | Sciences, Carleton University, Ottawa, Ontario, Kl S 5B6, Canada 4Department of Chemistry, Tokyo Metropolitan...Tapira) and Canada (Borden, Oka, and Prairie Lake) as well as one syenite (Poohbah Lake, Canada). Mineral...forsterite, diopside, calcite, monticellite, and perovskite. Large amount of in situ produced 238U-fissiogenic...most samples. An apatite sample from the Prairie Lake carbonatite showed a 136Xe/13°Xe ratio of about 1400...heating studies of an apatite from the Jacupiranga carbonatite indicate that the high temperature fractions |  | Wu, Fu-Yuan, Yang, Yue-Heng, Mitchell, Roger H., Bellatreccia, Fabio, Li, Qiu-Li, Zhao, Zi-Fu (2010) In situ U–Pb and Nd–Hf–(Sr) isotopic investigations of zirconolite and calzirtite. Chemical Geology, 277 (1) 178-195 doi:10.1016/j.chemgeo.2010.08.007 | Journal (article/letter/editorial) | | Department of Geology, Lakehead University, Ontario, Canada, P7B 5E1 c Dipartimento di Scienze Geologiche...isotopes Zirconolite Calzirtite In situ analysis Carbonatite a b s t r a c t Although the calcium- and titanium-bearing...occurring at Phalaborwa (South Africa), Prairie Lake (Canada), Afrikanda and Kovdor (Kola, Russia), Guli...Calzirtite (Ca2Zr5Ti2O16) is a common mineral in carbonatite and associated pyroxenite and phoscorite (van...(c) Phalaborwa zirconolite Phala-ZrkC; (d) Priarie Lake calzirtite NW-1; (e) Afrikanda calzirtite Afrk-1 |  | | Journal (article/letter/editorial) | | Daniel S. Barker Calculated silica activities in carbonatite liquids Received: 21 April 2000 / Accepted:...11 July 2001 Ó Springer-Verlag 2001 Abstract Carbonatite magmas precipitate silicates, in addition to...assemblages provide tests of alternative sources (carbonatite magma, coeval silicate magma, or older rock)...carbonatites, because the silica activity in carbonatite magmas is too low to stabilize these minerals...should be unstable relative to baddeleyite and perovskite, respectively, but they do occur in carbonatites |  | | Journal (article/letter/editorial) | | University. The ‘PRAP’ apatite from a carbonatite complex at Prairie Lake, Ontario with a 207 Pb)– 206 Pb) age...Oqr238 Uq calibration. Apatites from the Poohbah Lake alkaline complex give 204 Pbr206 Pb– 238 Ur206 Pb...ŽDeWolf et al., 1993; Williams et al., 1996., perovskite ŽIreland et al., 1990., sphene ŽKinny et al....= 100 mm. extracted from the alkaline rocks of Ontario which are widely distributed over a large part...Shield ŽFig. 1.. POAP was derived from the Poohbah Lake alkaline complex, an Archean undersaturated potassic |  | 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) | | kimberlites: U/PB perovskite and Sr-Nd-HfOs-C-O isotope constraints from the Superior craton (Canada) Sebastian...kimberlites: U/PB perovskite and Sr-Nd-Hf-Os-C-O isotope constraints from the Superior craton (Canada), Chemical...KIMBERLITES: U/PB PEROVSKITE AND SR-ND-HF-OS-C-O ISOTOPE CONSTRAINTS FROM THE SUPERIOR CRATON (CANADA) PT Sebastian...Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada * AC Corresponding author (S...Neoproterozoic kimberlite, ultramafic lamprophyre, and carbonatite magmatic activity was widespread across the Canadian-Greenland |  | | Journal (article/letter/editorial) | | U/Pb, Th/Pb as well as Pb/Pb dates from several carbonatite complexes from Europe and North America are presented...Canadian Shield. Other, less well-defined, events in Canada include magmatism at 1770 Ma from Argor, 570 Ma...at 360 Ma from the Canadian Cordillera. One carbonatite from the Ukrainian Shield (Chernigovka) has been...University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada e-mail: arukhlov_ablinova@shaw.ca Present...Building, 4999 - 98 Avenue, Edmonton, Alberta T6B 2X3, Canada of plume magmatism and associated continental |  | | Report (issue) | | Ontario Geological Survey Open File Report 6000 Summary of Field Work and Other Activities 1999 1999...1999 ONTARIO GEOLOGICAL SURVEY Open File Report 6000 Summary of Field Work and Other Activities 1999...Marshall Lake volcano on the northern margin of eastern Wabigoon Subprovince, northwestern Ontario; in Summary...Summary of Field Work and Other Activities 1999, Ontario Geological Survey, Open File Report 6000, p.23-1...Printer for Ontario, 1999 © Queen’s Printer for Ontario, 1999. Open File Reports of the Ontario Geological |  | Doroshkevich, Anna G., Veksler, Ilya V., Klemd, Reiner, Khromova, Elena A., Izbrodin, Ivan A. (2017) Trace-element composition of minerals and rocks in the Belaya Zima carbonatite complex (Russia): Implications for the mechanisms of magma evolution and carbonatite formation. Lithos, 284. 91-108 doi:10.1016/j.lithos.2017.04.003 | Journal (article/letter/editorial) | | composition of minerals and rocks in the Belaya Zima carbonatite complex (Russia): Implications for the mechanisms...mechanisms of magma evolution and carbonatite formation Anna G. Doroshkevich, Ilya V. Veksler, Reiner Klemd...composition of minerals and rocks in the Belaya Zima carbonatite complex (Russia): Implications for the mechanisms...mechanisms of magma evolution and carbonatite formation, LITHOS (2017), doi:10.1016/j.lithos.2017.04.003 ...composition of minerals and rocks in the Belaya Zima carbonatite complex (Russia): T implications for the mechanisms |  | Chen, Maohong, Bagas, Leon, Liao, Xin, Zhang, Zhiqiang, Li, Qiuli (2019) Hydrothermal apatite SIMS Th Pb dating: Constraints on the timing of low-temperature hydrothermal Au deposits in Nibao, SW China. Lithos, 324. 418-428 doi:10.1016/j.lithos.2018.11.018 | Journal (article/letter/editorial) | | for one crystal in each sample. A rectangular area was identified around each crystal using ...analyses were performed along traverses across the area covered. The instrument was run with an ACCEPTED...were acquired by rastering a EP T 40 40 m2 area. The images show the relative abundances of elements...The spot size was ellipsoidal and ~20 30 µm in area. A previously reported Th–Pb dating protocol was...relationship between RI between allanite and perovskite (Gregory et al., 2007; Li et al., 2010a, 2018) |  | | Book | | South Africa 189 3.4.2. The Mackenzie dyke swarm, Canada 190 3.4.3. Parami-Etendeka dykes 192 3.5 Intracontinental...troctolite-anorthosite complexes 8.4.1. Voisey's Bay Ni-Cu-Co 8.5 Komatiite-related magmatic ore deposits...from the 3 Ga Lumby 1ake greenstone be1t, Ontario, Canada. Geo1ogy, 26: 719-722. PARTONE CHAPTERONE...t Q) "'2 Perovskite structure "'Ci; ~ ;!: 0 ...J 900 t 4 5 6 7 Perovskite S-wave velocity...700 km depth, from the spinel structure to a perovskite structure (Fig. 1.3; McKenzie, 1983). A small |
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