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    <marc:controlfield tag="008">171106s1997    onca|||fo    f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">En13-5/97-126E-PDF</marc:subfield>
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      <marc:subfield code="a">Preliminary characterization of fracturing at the site of the Chalk River Laboratories </marc:subfield>
      <marc:subfield code="h">[electronic resource] / </marc:subfield>
      <marc:subfield code="c">by A. Piggott ... [et al.].</marc:subfield>
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    <marc:datafield tag="260" ind1=" " ind2=" ">
      <marc:subfield code="a">Burlington, Ont. : </marc:subfield>
      <marc:subfield code="b">Environment Canada, Water Science and Technology Directorate,</marc:subfield>
      <marc:subfield code="c">[1997].</marc:subfield>
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      <marc:subfield code="a">[11] p. : </marc:subfield>
      <marc:subfield code="b">ill. </marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">97-126</marc:subfield>
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      <marc:subfield code="a">Cover title.</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"‘A three-dimensional conceptual model of fracture system geometry based on a uniform and isotropic distribution of disc-shaped fractures and a fractal relation between the frequency and dimension of the fractures is developed for the site of the Chalk River Laboratories of Atomic Energy of Canada Limited. The model is applied to site and outcrop scale fracture trace length data and is consistent with the data for trace lengths in the range of 1 to 1000 m. Probabilistic results derived from the model confirm he accuracy of the plotting and interpretation of the in situ data and illustrate the three-dimensional form of the estimated fracture system"--Abstract.</marc:subfield>
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      <marc:subfield code="a">Includes abstract in French.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="a">Piggott, Andrew R. </marc:subfield>
      <marc:subfield code="q">(Andrew Robert)</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
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      <marc:subfield code="a">National Water Research Institute (Canada)</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ;</marc:subfield>
      <marc:subfield code="v">no. 97-126</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.844121</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">866 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2017/eccc/En13-5-97-126-eng.pdf</marc:subfield>
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