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      <marc:subfield code="a">Ruffman, Alan, </marc:subfield>
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      <marc:subfield code="a">Pre-Confederation historical seismicity of Nova Scotia with an examination of selected later events / </marc:subfield>
      <marc:subfield code="c">by Alan Ruffman and Jean Peterson.</marc:subfield>
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      <marc:subfield code="a">[Ottawa] : </marc:subfield>
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      <marc:subfield code="c">1988.</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.</marc:subfield>
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      <marc:subfield code="a">Volume 1. Text and appendixes 1-7 -- volume 2. [Appendix 8] copies of newspaper articles found during the study.</marc:subfield>
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      <marc:subfield code="a">"A recent four-month archival, contract research program for the Earth Physics Branch of the Canada Department of Energy, Mines and Resources has investigated the historical seismicity of Nova Scotia from 1752-1867. Long runs of all available issues of long-publishing Halifax newspapers were scanned for all earthquakes and tsunami"--page 1, volume 1.</marc:subfield>
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      <marc:subfield code="a">Geological Survey of Canada, </marc:subfield>
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      <marc:subfield code="z">Volume 2</marc:subfield>
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