| Computer Code: |
SRE |
Preferred Map Code: |
SRE |
| Status Code: |
Full |
| Age range: |
Caradoc Series (O4)
— Caradoc Series (O4) |
| Lithological Description: |
A massive, eutaxitic, lithic-rich, andesitic lapilli-tuff. |
| Definition of Lower Boundary: |
Taken at the base of eutaxitic lapilli-tuff resting on volcaniclastic sandstone or bedded tuff of the Glaramara Tuff. |
| Definition of Upper Boundary: |
Taken at the abrupt change from massive lapilli-tuff to volcaniclastic sandstone. |
| Thickness: |
Up to 40 m thick. |
| Geographical Limits: |
Kirkstone Pass to Troutbeck and south of Hayeswater, eastern Lake District, Cumbria. |
| Parent Unit: |
Seathwaite Fell Sandstone Formation (SET)
|
| Previous Name(s): |
St Raven's Edge Member
(-540)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
St Raven's Edge, eastern side of the Kirkstone Pass, Cumbria. |
| Reference(s): |
| Woodhall, D G. 2000. The geology of the Haweswater and Martindale areas of the north-eastern Lake District. British Geological Survey Technical Report WA/00/55. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E030
E039
|
