| Computer Code: |
FCYSI |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Callovian Age (JC)
— Callovian Age (JC) |
| Lithological Description: |
Coarse siltstone, passing upwards into silty, fine-grained sandstone. |
| Definition of Lower Boundary: |
The lower boundary is defined by a change up from the bituminous sandy siltstone with mudstone intercalations of the Brora Brick Clay Member (BROBC) of the Strathsteven Mudstone Formation (SSTV) to the coarse siltstone to silty fine-grained sandstone of the Fascally Siltstone Member. The boundary is conformable. |
| Definition of Upper Boundary: |
Overlain by the Fascally Sandstone Member (FCYSD). |
| Thickness: |
33.5 m. |
| Geographical Limits: |
Onshore area around Brora, on the Moray Firth, north-east Scotland. |
| Parent Unit: |
Clynekirkton Sandstone Formation (CYK)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
The foreshore [NC 909 031] south of the River Brora estuary (Sykes, 1975). |
| Reference(s): |
| Barron, A J M, Lott, G K, and Riding, J B. 2012. Stratigraphical framework for the Middle Jurassic strata of Great Britain and the adjoining continental shelf. British Geological Survey Research Report RR/11/06. |
| Sykes, R M. 1975. The stratigraphy of the Callovian and Oxfordian stages (Middle-Upper Jurassic) in northern Scotland. Scottish Journal of Geology, Vol.11, 51-78. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
