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| I N G OF THE L A C K N E R LAKE COMPLEX, N O R T H E R N ONTARIO, CANADA* L B. OWEN** and G. FAURE Department... 1977. Rb-Sr dating of the Lackner Lake Complex, northern Ontario, Canada. Precambrian Res, 5. 299--303...299--303. The Lackner Lake Complex of northern Ontario consists of nephehne syenite and ijolite with associated...associated bodies of apatite--magnetite rock and carbonatite. A whole-rock Rb-Sr lsochron indicates that...syenite-carbonatlte complexes. INTRODUCTION The L a c k n e r Lake C o m p l e x is l o c a t e d in parts o f M c |
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| concentrationof carbonatitecomplexesin North America is in northern Ontario and western Quebec, in a petrographicprovince...petrographicprovince here named the Ontario Carbonatite Province. This petrographicprovince has some 50 known...carbonates. Such enrichment occurs on the Cargill complex, located on a branch structure off the KapuskasingHigh...well-developedkarst topographynow buried under glacial lake clays. During karst developmentcarbonateswere dissolvedfrom...possibleeconomicpotential. The Introduction Ontario Carbonatite Province T•IE carbonatitepetrographicprovince• |
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| alkaline complexes. The latter plutons include the North Qoroq intrusion ( 1291 _61 Ma) yielding a pole position... d p / d m = 4/7 ° ). The younger South Qoroq complex ( l 160 _+8 Ma ) yields a pole position at 216...= 5/7 ° ) ] to the slightly-older South Qoroq complex. Together with earlier results from the Gardar...for which data from the Keweenawan Province of North America (ca. 1100-1050 Ma) define the return path...1987). The well-studied Keweenawan Province of North America is an example. Since the early studies of |
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| Part 1: North and South America Alkaline Rocks and Carbonatites of the World Part 1: North and South...Alkaline rocks and carbonatites of the world. Pt. 1, North and South America 1. Alkalic igneous rocks I. Title...................................... 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 |
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| University of Manitoba, Winnipeg, Man. R3T2N2, Canada ELSEVIER, Amsterdam - Oxford - New York - Tokyo...Netherlands Distributors for the United States and Canada: ELSEVIER SCIENCE PUBLISHING COMPANY INC. 52, Vanderbilt...colour index. This is, without doubt, the most complex lithologie association to be handled from the point...or in the mine workings at all. The Climax Mo complex is the best known example. Here three generations...Buddington (1959) in his classical paper on the North American granites, proposed a three-fold depth subdivision |
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| University Man. R3T2N2, of Manitoba, Winnipeg, Canada ELSEVIER, Amsterdam - Oxford - New Y o r k - T...Netherlands Distributors for the United States and Canada: ELSEVIER SCIENCE PUBLISHING COMPANY INC. 52,...colour index. This is, without doubt, the most complex lithologic association to be handled from the point...or in the mine workings at all. The Climax Mo complex is the best known example. Here three generations...Buddington (1959) in his classical paper on the North American granites, proposed a three-fold depth subdivision |
