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J. David Felix and Emily M. Elliott The agricultural history of human-nitrogen interactions as recorded in ice core δ15N-NO3− Geophysical Research Letters 40

Version of Record online: 25 APR 2013 | DOI: 10.1002/grl.50209

Key Points

  • Agricultural advances had a profound impact on soil N cycling and NOx emissions
  • Ice core d15N is a powerful tool for inferring changes in NOx emission sources
  • Earthquake locations and focal mechanisms suggest fault mesh failure

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