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      <marc:subfield code="a">McMartin, Isabelle, </marc:subfield>
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      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Till composition across the MacAlpine Moraine System : </marc:subfield>
      <marc:subfield code="b">results from the GEM-2 Thelon tectonic zone project, Nunavut (NTS 76-H and NTS 76-I) / </marc:subfield>
      <marc:subfield code="c">I. McMartin and R.G. Berman.</marc:subfield>
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    <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">2015.</marc:subfield>
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      <marc:subfield code="c">©2015</marc:subfield>
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      <marc:subfield code="a">1 online resource (iv, 18 pages) : </marc:subfield>
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      <marc:subfield code="a">Open file, </marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 16-18).</marc:subfield>
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      <marc:subfield code="a">"This report releases the field database and analytical results from a targeted till sampling survey completed during 8 days in 2014 over NTS 76H and 76I as part of the Geological Survey of Canada’s GEM-2 Thelon tectonic zone project, mainland Nunavut. The survey covers parts of the Thelon tectonic zone and adjacent Slave craton, and crosses the western end of the MacAlpine Moraine System. Quaternary field observations were recorded at 55 field stations; 28 of these included the collection of surface till samples. Samples were analyzed mainly for matrix geochemistry, gold grain counts, indicator mineral picking of the sand fraction, and pebble lithology analysis"--Abstract, page 1.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Drift</marc:subfield>
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      <marc:subfield code="a">Drift</marc:subfield>
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      <marc:subfield code="a">Drift (Glaciologie)</marc:subfield>
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      <marc:subfield code="a">Drift (Glaciologie)</marc:subfield>
      <marc:subfield code="x">Échantillonnage</marc:subfield>
      <marc:subfield code="z">Nunavut.</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="q">PDF</marc:subfield>
      <marc:subfield code="s">2.23 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2025/rncan-nrcan/m183-2/M183-2-7910-eng.pdf</marc:subfield>
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