<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
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    <marc:controlfield tag="007">aj cznzn</marc:controlfield>
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      <marc:subfield code="a">Geological Survey of Canada.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Gravity gradiometer survey of the Creighton area, Saskatchewan, parts of NTS 63-L/7, 8, 9 and 10.</marc:subfield>
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      <marc:subfield code="a">Scale: 1:50,000 ; </marc:subfield>
      <marc:subfield code="b">universal transverse Mercator projection, zone 13N </marc:subfield>
      <marc:subfield code="c">(W 102°50'--W 102°15'/N 54°37'--N 54°20').</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Natural Resources Canada = Ressources naturelles Canada, </marc:subfield>
      <marc:subfield code="c">2018.</marc:subfield>
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      <marc:subfield code="c">©2018</marc:subfield>
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      <marc:subfield code="a">1 online resource (4 maps) : </marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada open file ; </marc:subfield>
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      <marc:subfield code="a">"Authors: O. Boulanger, F. Kiss and M. Coyle."</marc:subfield>
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      <marc:subfield code="a">Vertical component of gravity -- Vertical gravity gradient -- Residual total magnetic field -- First vertical derivative of the magnetic field.</marc:subfield>
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      <marc:subfield code="a">Boulanger, Olivier, </marc:subfield>
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      <marc:subfield code="a">Kiss, Frank, </marc:subfield>
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      <marc:subfield code="a">Coyle, Maurice, </marc:subfield>
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      <marc:subfield code="a">Saskatchewan Geological Survey.</marc:subfield>
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      <marc:subfield code="a">Open file (Geological Survey of Canada)</marc:subfield>
      <marc:subfield code="v">8441.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.832719</marc:subfield>
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      <marc:subfield code="s">2.24 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/rncan-nrcan/m183-2/M183-2-8441-eng.pdf</marc:subfield>
      <marc:subfield code="z">(Vertical component of gravity)</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/rncan-nrcan/m183-2/M183-2-8441-1-eng.pdf</marc:subfield>
      <marc:subfield code="z">(Vertical gravity gradient)</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/rncan-nrcan/m183-2/M183-2-8441-2-eng.pdf</marc:subfield>
      <marc:subfield code="z">(Residual total magnetic field)</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="z">(First vertical derivative of the magnetic field)</marc:subfield>
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