| Computer Code: |
UNC |
Preferred Map Code: |
UnC |
| Status Code: |
Pending Upgrade |
| Age range: |
Brigantian Substage (CX)
— Brigantian Substage (CX) |
| Lithological Description: |
Chert. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Alston Formation (AG)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Wells, A J, 1957. The stratigraphy and structure of the Middleton Tyas-Sleightholme Anticline, North Yorkshire. Proceedings of the Geologists' Association. Vol.68. 231-254. |
| Dunham, K C, and Wilson, A A. 1985. Geology of the Northern Pennine Orefield: Volume 2, Stainmore to Craven. Econ. Mem. Br. Geol. Surv., Sheets 40, 41, 50, and parts of 31, 32, 51, 60 and 61, New Series. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E040
|
