The BGS Lexicon of Named Rock Units — Result Details

Mcgildowney's Shale Member

Computer Code: MCYS Preferred Map Code: MCYS
Status Code: Pending Upgrade
Age range: Pendleian Substage (CE) — Pendleian Substage (CE)
Lithological Description: Shales, mudstones, sandstone (lenticular), ironstone, limestone.
Definition of Lower Boundary: Massive sandstones overlying Main Coal, typical of Ballyvoy Sandstone Formation.
Definition of Upper Boundary: Junction with non-marine shale, sandstone and coals.
Thickness: 20m.
Geographical Limits: none recorded or not applicable
Parent Unit: Ballyvoy Sandstone Formation (BVYS)
Previous Name(s): Mcgildowneys Marine Band (MYMB)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  North-east coast of County Antrim, coastal cliff sections east of Ballycastle. 
Reference(s):
Wilson, H E and Robbie, J A. 1966. Geology of the Country around Ballycastle. Memoir of the Geological Survey. [Belfast: HMSO.] 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable