The BGS Lexicon of Named Rock Units — Result Details
Carrickmore Shale Member
Computer Code: | CRKM | Preferred Map Code: | CRKM |
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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) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
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 |