Petrified Forest


  • Photographer
    Patricia Dinu
  • Prize
    Honorable Mention
  • Date of Photograph
    2014

Petrified Forest, named for its large deposits of petrified wood.During the Late Triassic, downed trees accumulating in river channels were buried periodically by sediment containing volcanic ash. Groundwater dissolved silica (silicon dioxide) from the ash and carried it into the logs, where it formed quartz crystals that gradually replaced the organic matter. Traces of iron oxide and other substances combined with the silica to create varied colors in the petrified wood.

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