| Computer Code: |
GGM |
Preferred Map Code: |
GGM |
| Status Code: |
Full |
| Age range: |
Tremadoc Series (O1)
— Tremadoc Series (O1) |
| Lithological Description: |
Breccia, mainly of siltstone in a siltstone matrix. |
| Definition of Lower Boundary: |
Base not seen. |
| Definition of Upper Boundary: |
Top sharp with overlying (inverted sequence) Robinson Member. |
| Thickness: |
Approx. 100 metres. |
| Geographical Limits: |
Not defined. |
| Parent Unit: |
Buttermere Formation (BUF)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Goat Gills, east of Buttermere Lake. |
| Reference(s): |
| Cooper, A H, and Webb, B C. 1988. Slump Folds and Gravity Slide Structures in a Lower Palaeozoic Marginal Basin Sequence (The Skiddaw Group), north west England. Journal of Structural Geology, Vol. 10(5), 463-472. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E029
|
