| Computer Code: |
CLYNQ |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Callovian Age (JC)
— Kimmeridgian Age (JD) |
| Lithological Description: |
Friable, fine-grained yellow sand with occasional carbonaceous debris, in which cemented sandstone with horizons of nodular silicified sandstone, flame structures and a rich fauna of ammonites and bivalves are locally seen. |
| Definition of Lower Boundary: |
Overlies the Fascally Sandstone Member (FCYSD). |
| Definition of Upper Boundary: |
Overlain by the Brora Sandstone Member (BROSD). |
| Thickness: |
About 20 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: |
| Partial Type Section |
Cliffs on the south bank of the River Brora: the upper part of the member is exposed opposite the disused Brora colliery [NC 899 039] (Trewin and Hurst, 1993). |
| Partial Type Section |
Cliffs on the south bank of the River Brora: the lower part of the member is exposed 800 m west-south-west of the A9 road bridge [NC 898 038] (Trewin and Hurst, 1993). |
| Reference(s): |
| Trewin, N H, and Hurst, A R (editors). 1993. Excursion guide to the geology of east Sutherland and Caithness. (Edinburgh: Scottish Academic Press.) |
| 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. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
