The BGS Lexicon of Named Rock Units — Result Details

Carrickmore Shale Member

Stratotypes:
Computer Code:	CRKM	Preferred Map Code:	CRKM
Status Code:	Full
Age range:	Brigantian Substage (CX) — Brigantian Substage (CX)
Lithological Description:	Shale, dark grey with marine fauna; limestone, shaly, crinoidal, ironstone.
Definition of Lower Boundary:	Carrickmore Blackband Ironstone (0.6 m) overlain by marine shales.
Definition of Upper Boundary:	Top of grey shales succeeded by massive pink-red sandstones typical of Ballyvoy Sandstone Formation.
Thickness:	14 m.
Geographical Limits:	none recorded or not applicable
Parent Unit:	Ballyvoy Sandstone Formation (BVYS)
Previous Name(s):	Carrickmore Marine Band (CKMB) Carrickmore Marine Band (CKMB)
Alternative Name(s):	none recorded or not applicable
Type Area	North-east coast of Country Antrim, cliff sections east of Ballycastle to Murlough Bay.
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