 | | Journal (article/letter/editorial) | | of Nepheline Syenites from the Coldwell Alkaline Complex, Ontario, Canada by ROGER H. MITCHELL AND R....University, Thunder Bay, Ontario, Canada P7B 5E1 WITH SEVEN PLATES ABSTRACT Nepheline natrolite syenites...syenites of Center 2 of the Coldwell alkaline complex exhibit rare wispy mafic-rich modal layering, extensive...Formation of late stage primary and replacement natrolite, muscovite and thomsonite is characteristic. The...alkali basaltic magmas. INTRODUCTION The Coldwell complex is located on the north shore of Lake Superior |  | | Journal (article/letter/editorial) | | Ferroaugite Syenite from the Coldwell Alkaline Complex, Ontario, Canada 6>-ROGER H. MITCHELL and R. GARTH...Department of Geology, Lakehead University, Thunder Bay, Ontario, Canada P7B 5E1 (Received 7 July 1977; in revisedform...E R A L GEOLOGY OF THE COLDWELL COMPLEX Tectonic setting The Coldwell complex located on the north shore...studied alkaline intrusions in North America. The complex is unusual in that it contains oversaturated, saturated...Archean metavolcanic-metasediment terrain. The complex is a part of the Keweenawan activity centered around |  | 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) | | GROUP FROM THE PRAIRIE LAKE SILICOCARBONATITE, ONTARIO Anton R. CHAKHMOURADIAN§ Department of Geological...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...Mesoproterozoic Prairie Lake intrusive complex, in northwestern Ontario, Canada. The mineral forms flattened prismatic |  | | Journal (article/letter/editorial) | | Nepheline-Bearing Rocks From the Poohbah Lake Complex, Ontario: Malignites and MaUgnites Roger H. Mitchell...University, Thunder Bay, Ontario, Canada Abstract. Malignites from the Poohbah Lake complex of northwestern...northwestern Ontario, Canada are melanocratic cumulates. Cumulus pyroxene and apatite are poikilitically enclosed...malignite from the type locality at Poohbah Lake, Ontario, Canada, to point out inconsistencies in the use of...Lake (48 ~ 25' N, 91 ~ 40' W) in northwestern Ontario. These rocks, following the type locality nomenclature |  | | Journal (article/letter/editorial) | | magmatism, North America: evidence from the Coldwell Complex L . M . H e a m a n and N. M a c h a d o *...Department of Geology, Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario, Canada M5S 2C6 Received January...Accepted September 26, 1991 Abstract. The Coldwell Complex represents the largest alkaline intrusion...Midcontinent Rift System in North America. This complex contains a plethora of rock types that have previously...five samples indicates that the majority of the complex was emplaced into "cold" Archean crust at 1108 |  | | Journal (article/letter/editorial) | | orbicular ijolites from the Prairie Lake complex, Marathon, Ontario: Textural evidence from rare processes...orbicular ijolites from the Prairie Lake complex, Marathon, Ontario: Textural evidence from rare processes...orbicular ijolites from the Prairie Lake complex, Marathon, Ontario: SHANNON E. ZUREVINSKI* and ROGER H...Department of Geology, Lakehead University, Thunder Bay, ON, CANADA P7B 5E1 *Corresponding author. Telephone:...the 1.1 Ga Prairie Lake Carbonatite Complex (Marathon, Ontario, Canada), and is the only known occurrence |  | | Journal (article/letter/editorial) | | AMPHIBOLE â CLINOPYROXENE ROCK FROM THE AFRIKANDA COMPLEX, KOLA PENINSULA, RUSSIA: MINERALOGY AND A POSSIBLE...Manitoba, 125 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada ANATOLY N. ZAITSEV Department of Mineralogy, St...in cumulate ultramafic series of the Afrikanda complex, Kola Peninsula, Russia. The rock is composed of...our previous studies, we demonstrated that the complex mineralogy of CAPR could not be explained in terms...xenocrysts of SILICATE MINERALS IN CAPR, AFRIKANDA COMPLEX, RUSSIA golden yellow, distinctly pleochroic clinopyroxene |  | SĂĄnchez-Muñoz, Luis, MĂŒller, Axel, AndrĂ©s, Sol LĂłpez, Martin, Robert F., Modreski, Peter J., de Moura, Odulio J.M. (2017) The PâFe diagram for K-feldspars: A preliminary approach in the discrimination of pegmatites. Lithos, 272. 116-127 doi:10.1016/j.lithos.2016.10.030 | Journal (article/letter/editorial) | | McGill University, Montreal, Quebec, H3A 0E8, Canada. f U.S. Geological Survey, Federal Center Denver...as in the Coldwell Alkaline Complex ACCEPTED MANUSCRIPT in northwestern Ontario, Canada. Group II comprises...syenitic pegmatites. Our simplified approach to a complex problem targets an essential mineral common to...geologist mapping uncharted territory in a pegmatite district. Our aim in this research is to test whether the...(Dewaele et al., 2011). In the same way, the Gascoin Complex in the Capricorn Orogen (West Australia) contains |  | | Journal (issue) | | Their formation processes are so varied and often complex and their physical form often so unusual that I...material is located in Canada, specifically the Coldwell Alkaline Complex in Ontario, and that fragments...fragments of this complex were transported to their approximate present-day location by continental glaciation...orange-red natrolite (alteration of nepheline) in these clasts argues strongly for a Coldwell Complex origin... Vicky Underhill, Audrey E. Smith, Mark Smyk (Ontario Geological Survey) and Shannon Zurevinski (Lakehead |  | | Journal (article/letter/editorial) | | nepheline syenite (white foyaite) from the Pilanesberg Complex, South Africa Tom Andersen, Marlina Elburg, Muriel...nepheline syenite (white foyaite) from the Pilanesberg Complex, South Africa, Chemical Geology (2016), doi: 10...nepheline syenite (white foyaite) from the Pilanesberg Complex, South Africa Muriel Erambert1 T Tom Andersen1...Abstract MA The Mesoproterozoic Pilanesberg Complex, South Africa, is built up by several distinct...outermost ring in the southwestern part of the complex (âMatooster type TE white foyaiteâ). In this |  | | Book | | ............................ 4 NORTH AMERICA Canada..................................................exploration in particular of Africa, the U.S.S.R., Canada and Brazil, much of it inspired by the search for...Lengai natrocarbonatite volcano and the Ilimaussaq complex, but comparative studies on alkaline rocks have...style adopted for Currie's 'The Alkaline Rocks of Canada' (1976) and the descriptions of carbonatites compiled...pathoidal rocks of the Haliburton-Bancroft area of Canada. Kimberlites are not included, partly because they |  | | Report (issue) | | and the Rustenburg Layered Suite of the Bushveld Complex (in North-West, Mpumalanga and Northern Provinces)...from the Rustenburg Layered Suite of the Bushveld Complex; the total number of type species of the platinum...by the number of type species from the Noril'sk Complex in Russia. Twenty (20) valid type species so far...from the Rustenburg Layered Suite of the Bushveld Complex. 1. INTRODUCTION 1.1 Nomenclature Usage A...kimberlite pipe, Farm Dorst Fontein K 77, Kimberley district, Northern Cape Province (Parry and Wright, 1925) |  | | Book | | Malawi Rhodesia Sierra Leone Tanzania Uganda Zambia Canada India Australia New Zealand Nepheline-Syenite...1967. Illustrations PLATE I Nepheline-syenite Ontario PLATE II 1. Stjernoya nepheline-syenite with...Nepheline-syenite occurrences Quebec provinces, Canada page 66 Figure 7 Production flowsheet of glass...glass grade nephelinesyenite at Blue Mountain, Ontario page 73 Figure 8 Phonolite Germany page 84...in the U.S.S.R. page 99 occurrences in in Ontario Czechoslovakia and and Preface Tuis monograph |  | | Journal (article/letter/editorial) | | similar to that of the neighbouring IlԎmaussaq complex. Various mineral assemblages were used to reconstruct...as a small equivalent of the larger IlԎmaussaq complex, in which identical differentiation processes proceeded...additionally characterized by the occurrence of complex Zr- and Ti-silicate minerals, such as eudialyte...extreme fractionation trend found in the IlԎmaussaq complex is governed by low water activity, low SiO2 activity...nepheline syenites (kakortokites) of the IlԎmaussaq complex, he termed the dyke a micro-kakortokite (MiKa) |  | Marks, Michael, Vennemann, Torsten, Siebel, Wolfgang, Markl, Gregor (2004) Nd-, O-, and H-isotopic evidence for complex, closed-system fluid evolution of the peralkaline IlıÌmaussaq intrusion, south Greenland. Geochimica et Cosmochimica Acta, 68 (16) 3379-3395 doi:10.1016/j.gca.2003.12.008 | Journal (article/letter/editorial) | | 2003.12.008 Nd-, O-, and H-isotopic evidence for complex, closed-system fluid evolution of the peralkaline...indicate a closed system evolution of this igneous complex and support a mantle derivation of the magma. In...on the silica-saturated to oversaturated Puklen complex in the western part of the Gardar Province indicated...of a crustal component for the genesis of this complex (Marks et al., 2003). Nd isotope compositions for...and illustrated enlarged in Figure 2. The Puklen complex is a location referred to in the text. Konnerup-Madsen |  | | Report (volume) | | Geography, University of Alberta. Edmonton, Alberta, Canada. Am. Antiquity- American Antiquity. Society for...Arctic Institute of North America. Montreal, Quebec, Canada, and Washington, D. C. Arctic and Alpine Research-...North America Research Paper. Montreal, Quebec, Canada, and Washington, D. C. Arctic lnst. North America...North America Technical Paper. Montreal, Quebec, Canada, and Washington, D. C. Arizona Acad. Sci. Jour...Resources Annual Report. Victoria, British Columbia, Canada. British Columbia Univ. Dept. Geology Rept. - The |  | | Book (volume) | | the relative stabilities of minerals in quite complex chemical systems. In geochronology, the KâAr and...the present volume. Amphiboles are notoriously complex chemically and their nomenclature was the subject...Mineral Sciences; Mineralogical Association of Canada for diagrams from Canadian Mineralogist, Elsevier...American Mineralogist; National Research Council of Canada for diagrams from Canadian Journal of Earth Sciences;...Asbestos Determination (Ed. R. L. Ledoux). Min. Assoc. Canada. 1-34. Whittaker, E. J. W., Cressey, B. A. & Hutchison |  | | Conference Proceedings (Volume) | | regional scale 3D-model of the Skellefte mining district, northern Sweden ..............................VHMS-type deposits, Kristineberg area, Skellefte District, Sweden . . ....................................modelling for VMS exploration in the PyhĂ€salmi district, Central Finland ..............................Co-Ni-Cu-Au- mineralization in the Siegerland district, Rhenish Massif, NW Germany ....................Reflection seismic imaging in the Skellefte ore district, northern Sweden Mahdieh Dehghannejad, Christopher |  | | Book | | A. T. N. IRVINE, Geological Survey of Canada, Ottawa, Canada E. D. JACKSON, U.S. Geological Survey,...S.A. C. H. SMITH, Geological Survey of Canada, Ottawa, Canada Contributors vi H. SORENSEN, Universitetets...Bhattacharji, Geological Survey of Canada, and the National Research Council of Canada. T. N. Irvine: J. A. Noble...of the Muskox intrusion, Northwest Territories, Canada By T. N. Irvine and C. H. Smrru A. B. C. Introduction...COMPLEXES By P. J. WyLuir The Duke Island ultramafic complex, southeastern Alaska By T. N. IRVINE Introduction |  | Kogel, Jessica Elzea, Trivedi, Nikhil C., Barker, James M., Krukowski, Stanley T. - Eds. (2006) Industrial Minerals and Rocks (7th ed.) Society for Mining, Metallurgy, and Exploration, Inc., Littleton, CO. | Book (edition) | | substantial and wide-ranging changes and their complex ramifications for the industry. For example, numerous...George C. Hawley and Associates Brossard, Quebec, Canada Hassan E. El-Shall National Stone, Sand, and...and Development Ltd. Israel Chemicals Group Haifa Bay, Israel Tadataka Hida Shokozan Mining Company Ltd...and Development Ltd. Israel Chemicals Group Haifa Bay, Israel John R. Snoddy, IV Robert Virta Kyanite...as well as specialized industrial minerals, but complex interactions b etween consuming industries produce |  | | Book | | Alan D. Edgar, University of Western Ontario London, Ontario Introduction 1. Feldspathoids in rocks...simple chemistry and develop some of the most complex microstructures known. The microstructures are...invariably associated with feldspars. They have more complex chemistries, sometimes involving volatile elements...the processes invol ved in the formation of the complex structures and microstructures, not only from a...tetrahedral sites, respectively. Thus an intensely complex 'e'plagioclase or a pI or transitional anorthite |
|
