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geogeny +‎ -ic


geogenic (comparative more geogenic, superlative most geogenic)

  1. Of or relating to the history of the earth.
  2. Resulting from geological processes.
    • 2005, Kuykenda, William, Emissions Inventory Guidance for Implementation of Ozone and Particulate Matter National Ambient Air Quality Standards (NAAQS) and Regional Haze Regulations, DIANE Publishing, ISBN 9781428904491, page 61:
      Geogenic emissions are primarily the result of oil or natural gas seeps and soil wind erosion. In addition, lightning may also be a significant contributor to natural NO2 emissions in an inventory area. Volcanoes and fumaroles (i.e., vapor or gas vents in a volcanic region) can be additional sources of geogenic emissions.