| Computer Code: |
CLGH |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Asbian Substage (CR)
— Asbian Substage (CR) |
| Lithological Description: |
At base comprises small mud mounds and enveloping shales, silts and bioclastic shaly limestone, overlain by interbedded shales, silts and thin limestones, overlain to the top by thin-bedded, non-shaly limestones with coral bioherms and unfossiliferous small mud mounds. |
| Definition of Lower Boundary: |
Lower boundary with Knockmore Member, marked by incoming of shales and shaly limestone. |
| Definition of Upper Boundary: |
Upper contact is with bedded argillaceous cherty limestone of Dartry Limestone Formation. |
| Thickness: |
c 30 metres in type section; up to 50 metres to west of type section. |
| 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): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
