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      <marc:subfield code="a">Mercier-Langevin, Patrick, </marc:subfield>
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      <marc:subfield code="a">Rhenium-rich molybdenite and Re-Os age of the Archean porphyry-style Don Rouyn deposit, Abitibi greenstone belt, Rouyn-Noranda, Québec / </marc:subfield>
      <marc:subfield code="c">P. Mercier-Langevin, R.A. Creaser, J. Goutier, and I. Kjarsgaard.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 9-14).</marc:subfield>
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      <marc:subfield code="a">"This report presents Re-Os dating of molybdenite from the Don Rouyn deposit and St. Jude breccia prospect in the Rouyn-Noranda mining district in the southern Abitibi greenstone belt, Quebec. Both have been described as porphyry-style, magmatic-hydrothermal Cu-(Au-Mo) deposits associated with the Flavrian and Powell subvolcanic plutons based on the nature of the mineralized zones, their setting and available U-Pb age constraints"--Abstract, page 1.</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada, </marc:subfield>
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