Girkin Formation

From Wikipedia, the free encyclopedia
Jump to: navigation, search

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:


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