Computer Code: |
FCM |
Preferred Map Code: |
FcM |
Status Code: |
Pending Upgrade |
Age range: |
Arundian Substage (CJ)
— Arundian Substage (CJ) |
Lithological Description: |
Black argillaceous limestone and mudstone. |
Definition of Lower Boundary: |
Sharp limestone/mudstone junction, underlain by the Pant Limestone Member. |
Definition of Upper Boundary: |
Sharp limestone/mudstone junction, overlain by the White Orr Limestone Member. |
Thickness: |
1.7 metres. |
Geographical Limits: |
Not defined. |
Parent Unit: |
Not Entered (?)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Area |
Sheet 262, Bridgend |
Reference(s): |
Fletcher, C J N. 1983. Geological notes and local details for 1:10,000 Sheets SS87SE, St. Brides Major and part of 1:50,000 Sheet 261/262 (Bridgend). British Geological Survey, Onshore Geology Series, Technical Report, WA/83/19, p.23. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E262
|