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      <marc:subfield code="a">Lavoie, D., </marc:subfield>
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      <marc:subfield code="a">Sandstone composition and diagenesis of the Paskapoo Formation and their significance for shallow groundwater aquifer in the Fox Creek area, west-central Alberta / </marc:subfield>
      <marc:subfield code="c">D. Lavoie, V. Tremblay, and C. Rivard.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 41-48).</marc:subfield>
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      <marc:subfield code="a">"The shallow aquifer in the Fox Creek area is hosted by the Paleocene Paskapoo Formation. The formation consists of fluvial deposits with channel-filled high-energy sandstone cutting through fine grained, low energy overbank sediments. Three internal members are recognized, these members  define three hydrostratigraphic units (two aquifers and one aquitard)"--Abstract, page 7.</marc:subfield>
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      <marc:subfield code="a">Aquifers</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada, </marc:subfield>
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