| Computer Code: |
STND |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Guadalupian Epoch (PUG)
— Lopingian Epoch (PUL) |
| Lithological Description: |
[Obsolete: use ZG] Mudstones, evaporites and subsidiary carbonates. |
| Definition of Lower Boundary: |
Drawn at base of the Carnallitic Marl Formation where it rests conformably on the Boulby Halite Formation. |
| Definition of Upper Boundary: |
Drawn at conformable boundary between the Sneaton Halite Formation and the Sleights Siltstone Formation. |
| Thickness: |
To c.100m |
| Geographical Limits: |
Eastern England. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Fison's Limited F2 Borehole, Staintondale, Yorkshire, England. |
| Reference(s): |
| Rayner, D H, and Hemingway, J E (editors). 1974. The geology and mineral resources of Yorkshire. (Leeds: Yorkshire Geological Society.) |
| Smith, D B, Harwood, G M, Pattison, J and Pettigrew, T H. 1986. A revised nomenclature for Upper Permian strata in eastern England. 9-17 in Harwood, G M and Smith, D B (editors). The English Zechstein and Related Topics. Geological Society Special Publication No.22. |
| Smith, D B, Brunstrom, R G W, Manning, D I, Simpson, S and Shotton, F W. 1974. A correlation of Permian rocks in the British Isles. Geological Society of London Special Report No. 5. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
