The BGS Lexicon of Named Rock Units — Result Details

Sandy Craig Formation

Computer Code: SCB Preferred Map Code: SCB
Status Code: Full
Age range: Asbian Substage (CR) — Brigantian Substage (CX)
Lithological Description: Mudstone and siltstone with thin beds of non-marine limestone and dolomite; sandstone is subordinate; pattern of sedimentation both upward coarsening and upward fining cycles of non-marine origin.
Definition of Lower Boundary: The conformable base of the formation lies in a transitional sequence from the Pittenweem Formation and is taken at the top the St. Andrews Castle Marine Band.
Definition of Upper Boundary: The conformable top of the Formation lies in a transitional sequence up into the Pathhead Formation and is taken at the base of the West Braes Marine Band. This is slightly higher in the sequence than in the original definition, having been altered by Browne (1986, fig.2).
Thickness: Maximum thickness is about 670m in East Fife.
Geographical Limits: Central and east Fife.
Parent Unit: Strathclyde Group (SYG)
Previous Name(s): Sandy Craig Beds (-1804)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Sandy Craig on the Fife coast. 
Partial Type Section  Kilconquhar Mains Borehole (BGS Reg.No. NO40SE/26) from 203m to 700m. 
Partial Type Section  Pittenweem Harbour on the Fife coast. 
Reference(s):
Forsyth, I H and Chisholm, J I, 1977. The geology of east Fife. Memoirs of the Geological Survey of Great Britain. 
Browne, M A E, 1986. The Classification of the Lower Carboniferous in Fife and Lothian. Scottish Journal of Geology, Vol.22, p.422-425. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S040 S032 S032 S049 S041