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      <marc:subfield code="a">"A total of 195 cuttings samples were collected from between 229 – 2226 m from the Natsek E-56 well of Beaufort-Mackenzie Basin for Rock-Eval Pyrolysis. The Natsek E-56 well is being investigated as part of a multi-disciplinary study of petroleum systems in the Beaufort-Mackenzie Basin, carried out by the Geological Survey of Canada (Calgary) under the GeoMapping for Energy and Minerals (GEM) Program, Western Arctic Project"--Abstract, page 3.</marc:subfield>
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