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      <marc:subfield code="a">Piper, D. J. W., </marc:subfield>
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      <marc:subfield code="a">High-resolution seismic transects of the upper continental slope off southeastern Canada / </marc:subfield>
      <marc:subfield code="c">D.J.W. Piper and R.A. Brunt.</marc:subfield>
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      <marc:subfield code="c">©2006</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Natural Resources Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 19-23).</marc:subfield>
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      <marc:subfield code="a">"This Open File Report presents information on the distribution of glacial till beneath the upper continental slope from a series of transects off southeastem Canada. The widespread occurrence of glacial till beneath the upper slope has important consequences for foundation and exploratory drilling conditions on the upper slope. The limit of till influences the steep morphology at the heads of submarine canyon, important in the routing of any pipelines from deep water to the continental shelf. The distribution of till is important for reconstructing the glacial history of the area"--Preface, page 4.</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada, </marc:subfield>
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      <marc:subfield code="u">https://doi.org/10.4095/222863</marc:subfield>
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