| Computer Code: |
SPLI |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Pliensbachian Age (JE)
— Pliensbachian Age (JE) |
| Lithological Description: |
Interbedded muddy limestones and thin silty mudstones. |
| Definition of Lower Boundary: |
Upward change from thick mudstone sequence to a dominantly limestone sequence. |
| Definition of Upper Boundary: |
Upward change from a dominantly limestone sequence to silty and fine-grained sandy clays. |
| Thickness: |
0-2.5m |
| Geographical Limits: |
From just southwest of Ditcheat [ST 620 361] in an arc northeastward through Spargrove to just north of Stoney Stratton (limit of current mapping on 1:50 000 sheets 296 and 297). |
| Parent Unit: |
Charmouth Mudstone Formation (CHAM)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Small exposures around the hamlet of Spargrove, Somerset, 2km ESE of Evercreech. |
| Reference(s): |
| 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: |
|
E296
E297
|
