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    <marc:controlfield tag="001">9.858774</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20230131161138</marc:controlfield>
    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">180710s2018    onca    o    f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">CaOODSP</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
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      <marc:subfield code="a">eng</marc:subfield>
      <marc:subfield code="a">fre</marc:subfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
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      <marc:subfield code="a">M41-11/86-2018-PDF</marc:subfield>
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    <marc:datafield tag="245" ind1="0" ind2="0">
      <marc:subfield code="a">Reflection seismology </marc:subfield>
      <marc:subfield code="h">[electronic resource] : </marc:subfield>
      <marc:subfield code="b">example using different seismic sources = Sismologie de réflexion : exemple utilisant différentes sources sismiques / </marc:subfield>
      <marc:subfield code="c">B. Dietiker ... [et al.].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="246" ind1="3" ind2="1">
      <marc:subfield code="a">Sismologie de réflexion : </marc:subfield>
      <marc:subfield code="b">exemple utilisant différentes sources sismiques</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="260" ind1=" " ind2=" ">
      <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>
    </marc:datafield>
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      <marc:subfield code="a">[1] p. : </marc:subfield>
      <marc:subfield code="b">ill. (some col.)</marc:subfield>
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    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">Scientific presentation = Présentation scientifique ; </marc:subfield>
      <marc:subfield code="v">86</marc:subfield>
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      <marc:subfield code="a">Caption title.</marc:subfield>
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      <marc:subfield code="a">"Presented at Doors Open Ottawa 2017. Date presented: June 2017."</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">“As part of the 175th anniversary of the Geological Survey of Canada (GSC), staff of the Booth Street Complex in Ottawa participated in the Doors Open 2017 event. The near surface geophysics group showcased reflection seismology by displaying examples using different seismic sources. This poster compares the Minivib source with a smaller more portable source called Microvibe. The IVI Minivib 1 is a 9 ton vehicle with a vibrating mass of 140kg. The Microvibe's total weight is 180 kg. Despite the smaller size and decreased weight, the new Microvibe is capable of creating subsurface images with more detail"--provided by publisher.</marc:subfield>
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    <marc:datafield tag="546" ind1=" " ind2=" ">
      <marc:subfield code="a">Text in English and French.</marc:subfield>
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      <marc:subfield code="a">Seismic reflection method</marc:subfield>
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    <marc:datafield tag="700" ind1="1" ind2=" ">
      <marc:subfield code="a">Dietiker, Barbara.</marc:subfield>
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    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Natural Resources Canada.</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada.</marc:subfield>
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      <marc:subfield code="t">Reflection seismology </marc:subfield>
      <marc:subfield code="e">fre</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.858777</marc:subfield>
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    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">Scientific presentation (Geological Survey of Canada) = Présentation scientifique (Commission géologique du Canada)</marc:subfield>
      <marc:subfield code="v">86.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.858893</marc:subfield>
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    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">7.16 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m41-11/M41-11-86-2018.pdf</marc:subfield>
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      <marc:subfield code="a">308259</marc:subfield>
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