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      <marc:subfield code="a">Rayner, N. M., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Report on U-Pb geochronology from the 2017-2020 GEM-2 activity : </marc:subfield>
      <marc:subfield code="b">"Saglek Block, Labrador: Geological Evolution and Mineral Potential" / </marc:subfield>
      <marc:subfield code="c">N.M. Rayner.</marc:subfield>
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      <marc:subfield code="a">Saglek Block, Labrador: </marc:subfield>
      <marc:subfield code="b">Geological Evolution and Mineral Potential</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Geological Survey of Canada, </marc:subfield>
      <marc:subfield code="c">2022.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="4">
      <marc:subfield code="c">©2022</marc:subfield>
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      <marc:subfield code="a">1 online resource (15 pages) : </marc:subfield>
      <marc:subfield code="b">maps, photographs + </marc:subfield>
      <marc:subfield code="e">Lab images (19 volumes).</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="2">rdamedia</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
      <marc:subfield code="b">cr</marc:subfield>
      <marc:subfield code="2">rdacarrier</marc:subfield>
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      <marc:subfield code="a">Open file ; </marc:subfield>
      <marc:subfield code="v">8901</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">This record only includes the Open File in PDF; the complete data set with all the files in various formats is available for free download at http://geoscan.nrcan.gc.ca/.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references (pages 14-15).</marc:subfield>
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      <marc:subfield code="a">"This report contains the U-Pb geochronological results for 17 rock samples from Labrador collected as part of the Geomapping for Energy and Minerals (GEM2) activity entitled Saglek Block, Labrador: Geological Evolution and Mineral Potential. The purpose of this report is to release the existing data with the required sample and laboratory metadata along with a limted, preliminary interpretation so that this information is available for consideration by future researchers. The scanning electron microscope zircon images annotated with the sensitive high-resolution ion microprobe (SHRIMP) spot locations are included as separate Adobe pdf files"--Description of Content, page 1.</marc:subfield>
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      <marc:subfield code="a">Geological time</marc:subfield>
      <marc:subfield code="z">Newfoundland and Labrador</marc:subfield>
      <marc:subfield code="z">Labrador.</marc:subfield>
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      <marc:subfield code="a">Uranium-lead dating</marc:subfield>
      <marc:subfield code="z">Newfoundland and Labrador</marc:subfield>
      <marc:subfield code="z">Labrador.</marc:subfield>
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      <marc:subfield code="a">Zircon</marc:subfield>
      <marc:subfield code="z">Newfoundland and Labrador</marc:subfield>
      <marc:subfield code="z">Labrador</marc:subfield>
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      <marc:subfield code="a">Géochronologie</marc:subfield>
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      <marc:subfield code="z">Labrador.</marc:subfield>
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      <marc:subfield code="a">Zircon</marc:subfield>
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      <marc:subfield code="z">Labrador</marc:subfield>
      <marc:subfield code="x">Analyse.</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada, </marc:subfield>
      <marc:subfield code="e">issuing body.</marc:subfield>
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      <marc:subfield code="a">Open file (Geological Survey of Canada)</marc:subfield>
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      <marc:subfield code="z">Lab # 12217</marc:subfield>
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      <marc:subfield code="z">Lab # 12408 Zircon</marc:subfield>
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      <marc:subfield code="z">Lab # 12409 Titanite</marc:subfield>
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      <marc:subfield code="z">Lab # 12409 Zircon</marc:subfield>
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      <marc:subfield code="z">Lab # 12521</marc:subfield>
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      <marc:subfield code="z">Lab # 12623</marc:subfield>
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      <marc:subfield code="z">Lab # 12624</marc:subfield>
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      <marc:subfield code="z">Lab # 12628</marc:subfield>
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      <marc:subfield code="z">Lab # 12631</marc:subfield>
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