Computer Code: |
CLGL |
Preferred Map Code: |
notEntered |
Status Code: |
Pending Upgrade |
Age range: |
Asbian Substage (CR)
— Asbian Substage (CR) |
Lithological Description: |
Highly bioclastic, crinoidal microspar grainstone. |
Definition of Lower Boundary: |
Lower boundary is abrupt contact with poorly fossiliferous and cherty argillaceous limestones of Dartrey Formation. |
Definition of Upper Boundary: |
Upper contact is base of lowest shale of succeeding Carn Limestone Member. |
Thickness: |
0.97 metres in type section. Range 0.56 - 1.25 metres. |
Geographical Limits: |
Not defined. |
Parent Unit: |
Dartry Limestone Formation (DARL)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
Legg, I C, et al. 1998. Geology of the country around Derrygonnelly and Marble Arch, 2nd edition. Memoir of the British Geological Survey, Sheet 44/56. (N. Ireland). |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |