Analysis

Main Points

  • 96% of AFT ages are from the Cenozoic
  • Most AFT ages are younger than 40 Ma
  • 99% of AHe ages are from the Cenozoic
  • Most AHe ages are younger than 20 Ma
  • Youngest cooling ages associated with coastal fault systems and the Denali fault (near Mt Denali)
  • Sample locations are usually in proximity to known active faults
  • Histogram

    Areas of Missing Data

    Areas of missing AFT basement data for Southern Alaska

    Areas of missing AFT basement data for Southern Alaska

    Areas of missing AFT basement data within 50km of a quaternary fault for Southern Alaska

    Areas of missing AFT basement data within 50km of a quaternary fault for Southern Alaska

    Areas of missing AHe basement data for Southern Alaska

    Areas of missing AHe basement data for Southern Alaska

    Areas of missing AHe basement data within 50km of a quaternary fault for Southern Alaska

    Areas of missing AHe basement data within 50km of a quaternary fault for Southern Alaska

    The script used to create these areas can be downloaded HERE