| Computer Code: |
PENS |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Pliensbachian Age (JE)
— Pliensbachian Age (JE) |
| Lithological Description: |
[Obsolete: use DYS] Fine-grained sandy clay, clayey fine-grained sand and thin beds of fine-grained sand. |
| Definition of Lower Boundary: |
Upward change from silty clays and silts (Ditcheat Clay) to fine-grained sandy clays and sands. |
| Definition of Upper Boundary: |
Upward change to fossiliferous limestone of the Marlstone Rock Bed. |
| Thickness: |
25-40m |
| Geographical Limits: |
From Pennard Hill (limit of mapping in west) eastwards to Wyke Champflower - Milton Clevedon - Batcombe - north of Stoney Stratton. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
Pennard Sands [Obsolete Name And Code: See PENS]
(PNS)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Pennard Hill, Somerset. |
| Reference(s): |
| Kellaway, G A and Wilson, V. 1941. An outline of the geology of Yeovil, Sherborne and Sparkford Vale. Proceedings of the Geologists' Association, Vol.52, 131-174. |
| Bristow, C R, and Westhead R K. 1993. Geology of the Evercreech-Batcombe area (Somerset). British Geological Survey Technical Report WA/93/89. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
