| Computer Code: |
FHG |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Interbedded, soft to firm, grey muds and silty muds, and dark grey-brown silts, with rare small pebbles. |
| Definition of Lower Boundary: |
Generally rests unconformably on the St Abbs Formation although locally it may be conformable. |
| Definition of Upper Boundary: |
Top of unit has been eroded and these sediments are unconformably overlain by the St Andrew's Bay Member. |
| Thickness: |
c.16 metres. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
Forth Formation (FH)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Thomson, M E, and Eden, R A. 1977. Quaternary deposits of the central North Sea, 3. The Quaternary sequence in the west-central North Sea. Report of the Institute of Geological Sciences, No. 77/12. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
