English Burket Shale Cited by user Zigismon on 11 Dec 2023 The Burket Shale or Geneseo Shale is the lowest member of the Harrell Shale/Genessee Group.
English Genesee Formation Cited by user Zigismon on 10 Dec 2023 The Genesee Formation (Group) is a geologic formation in New York. It is equivalent the Harrell Shale in Pennsylvania.