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      <marc:subfield code="a">A review of November 24-25, 2011 shale gas workshop, Calgary, Alberta : </marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 11).</marc:subfield>
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      <marc:subfield code="a">"Shale gas is one of the hottest energy resources in North America, as improved completion and production techniques are unlocking huge volumes of natural gas. In Canada, production is increasing rapidly in British Columbia and almost all provincial jurisdictions have shale targets currently being explored and evaluated with highly variable technical and societal successes and issues. Recognizing the importance for the Canadian economy of these major resources, the Earth Science Sector of Natural Resources Canada has initiated a reflection on its potential implication in this new research area and how its Geological Survey and the provinces/territories can collaborate on addressing the geological and societal concerns regarding the extraction of the shale gas resources"--Introduction, page 2.</marc:subfield>
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