| Computer Code: |
CYKSD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Oxfordian Age (JO)
— Kimmeridgian Age (JD) |
| Lithological Description: |
[Obsolete: use ACHSD]
Pale grey, calcareous and silica-cemented sandstones with rare pebbles and subordinate shelly siltstones and mudstones or carbonaceous beds (Lee, 1925). |
| Definition of Lower Boundary: |
Overlies the Ardassie Limestone Member (ARDAL). |
| Definition of Upper Boundary: |
Not exposed. |
| Thickness: |
About 400 m. |
| Geographical Limits: |
Onshore area around Brora, on the Moray Firth, north-east Scotland. Present in boreholes to the north of Brora. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
There is no type section for the Clynekirkton Sandstone Member but it was reported exposed near Clynekirkton church [NC 8940 0616] by Lee (1925, pp 96, 99) (Cox and Sumbler, 2002; Trewin and Hurst, 1993). |
| Reference(s): |
| British Geological Survey. 1998. Helmsdale. Scotland Sheet 103E. Solid and Drift. 1:50 000 Geology Series. (Keyworth, Nottingham: British Geological Survey.) |
| Cox, B M, and Sumbler, M G. 2002. British Middle Jurassic Stratigraphy. Geological Conservation Review Series No. 26. (Peterborough: Joint Nature Conservation Committee.) |
| Lee, G.W., 1925. Mesozoic rocks of East Sutherland and Ross, In: Read, H.H., Ross, G., Phemister, J. (Eds.), The geology of the country around Golspie, Sutherlandshire. Memoir of the Geological Survey, pp. 65-114. |
| 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 |
