| Computer Code: |
DOCR |
Preferred Map Code: |
DoCr |
| Status Code: |
Full |
| Age range: |
Caradoc Series (O4)
— Caradoc Series (O4) |
| Lithological Description: |
Andesitic lapilli-tuff and tuff, in part welded, with eutaxitic texture. |
| Definition of Lower Boundary: |
Slight unconformity on bedded volcaniclastic sandstone (Deepdale Sandstone Formation). |
| Definition of Upper Boundary: |
Not preserved (Hart Crag) or intruded by an andesite sill (Dove Crag). |
| Thickness: |
45m (maximum) |
| Geographical Limits: |
Hart Crag and Dove Crag, northeastern Lake District (between Grasmere and Patterdale). |
| Parent Unit: |
Deepdale Sandstone Formation (DPD)
|
| Previous Name(s): |
Dove Crag Member [Obsolete Name and Code: Use DOCR]
(-3369)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
(Deepdale Formation). Hart Crag, 4.35km southwest of Deepdale. |
| Reference Section |
Dove Crag, 4.5km southwest of Deepdale. |
| Reference(s): |
| Woodhall, D G, 1998. The geology of the Wythburn, Thirlmere and Fairfield areas of the north-east Lake District. British Geological Survey Technical Report WA/98/07. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E029
|
