The BGS Lexicon of Named Rock Units — Result Details

Gully Member

Computer Code: GUY Preferred Map Code: GUY
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Slumped debris flow unit containing limestone clasts with shelly faunas within graptolitic shaly mudstones and siltstones of the Penwhapple Formation.
Definition of Lower Boundary: Succeeds more typical Penwhapple Formation graptolitic siltstone and mudstone in Penwhapple Burn.
Definition of Upper Boundary: Succeeded by normal graptolitic siltstone and mudstone of the Penwhapple Formation.
Thickness: To 5m
Geographical Limits: Girvan area, southwest Scotland.
Parent Unit: Penwhapple Formation (PWH)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  Section in Penwhapple Burn, Girvan, southwest Scotland. Ingham in Fortey et al. 2000. 
Fortey, R A, Harper, D A T, Ingham, J K, Owen, A W, Parkes, M A, Rushton, A W A and Woodcock, N H. 2000. A revised correlation of Ordovician rocks in the British Isles. Geological Society Special Report, No.24. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable