Computer Code: |
OAK |
Preferred Map Code: |
OAK |
Status Code: |
Full |
Age range: |
Gorstian Age (SG)
— Gorstian Age (SG) |
Lithological Description: |
Mudstones, bedding-fissile with much graptolitic hemipelagite and thin siltstone laminae. |
Definition of Lower Boundary: |
Passage from underlying Aston Mudstones - trench: (SO 3494 8817) to (SO 3481 8810). |
Definition of Upper Boundary: |
Overlain by Bailey Hill Formation. |
Thickness: |
0-180m |
Geographical Limits: |
Eastern environs of Bishops Castle. |
Parent Unit: |
Not Applicable (-)
|
Previous Name(s): |
Lower Ludlow Graptolitic Shales [Obsolete Name and Code: Use GFS, OAK]
(-4060)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Old quarry, 250m east of Oakley House, Bishops Castle, Shropshire. |
Reference Section |
Track section c.100m south of Oakley House. |
Reference(s): |
none recorded or not applicable |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E165
|