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      <marc:subfield code="a">Galloway, Jennifer M. </marc:subfield>
      <marc:subfield code="q">(Jennifer Margaret), </marc:subfield>
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      <marc:subfield code="a">Palynological analyses of maar lake sediments from core samples of Wombat kimberlite pipe, Northwest Territories, Canada / </marc:subfield>
      <marc:subfield code="c">J.M. Galloway, M. Bringué, S.D. Buryak, A.V. Reyes, C.K. West, and P.A. Siver.</marc:subfield>
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      <marc:subfield code="a">Calgary, Alberta : </marc:subfield>
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      <marc:subfield code="c">2022.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 18-27).</marc:subfield>
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      <marc:subfield code="a">"Six samples from various depths from two drill-cores of the Wombat kimberlite pipe, drilled by BHP Billiton in the Lac de Gras kimberlite field, Northwest Territories (NT), Canada, were prepared and analyzed for palynology for the purposes of biostratigraphic age determination and comparison to a U-Pb age from a recovered bentonite bed in one of the cores"--Introduction, page 2.</marc:subfield>
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