The Girkin Formation is a geologic formation located in the Chester Escarpment of central Kentucky, USA. It comprises a level of Mammoth Cave and lies above the Ste. Genevieve Limestone and St. Louis Limestone and below the Big Clifty Sandstone in that area. The Girkin is a limestone Mississippian in age.[1]

Members of the Girkin are as follows in descending order:

  • Beech Creek Member
  • Elwren Member
  • Reelsville Member
  • Sample Member
  • Beaver Bend Member
  • Bethel Member
  • Paoli Member

References

  1. ↑ "Groundwater Resources of Logan County, Kentucky". www.uky.edu. Retrieved 2016-01-26.


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