The BGS Lexicon of Named Rock Units — Result Details

Spynie Clay Member

Computer Code: SPYCL Preferred Map Code: SC
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: A dark bluish grey to yellowish-red, commonly laminated clay containing well-dispersed clasts and lenses of sand, gravel and diamicton, and low diversity, high-Arctic microfossils, indicative of a glaciomarine environment.
Definition of Lower Boundary: A sharp, unconformable, undulating contact with underlying deposits of either glaciofluvial sand and gravel, or brown, gravelly clayey sand, and gravelly sandy clay diamictons, interpreted as till.
Definition of Upper Boundary: A sharp, planar, erosional, unconformable contact with late-glacial raised beach deposits, or at the present ground surface.
Thickness: To 20m
Geographical Limits: Sheet 95 (Elgin).
Parent Unit: Errol Clay Formation (ERRCL)
Previous Name(s): Spynie Clay Formation (-1840)
Late-Glacial Raised Beach And Estuarine Alluvium (-539)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Spynie claypit. Buchan, 1935; Eyles et al. 1946. 
Reference Section  BGS-registered borehole No. 4, cited in Peacock et al. 1966, at 2.1 to 11.7m depth. Peacock et al. 1966. 
Reference(s):
Peacock, J D, Berridge, N G, Harris, A L, May, F. 1968. The geology of the Elgin District. Memoir of the Geological Survey of Scotland. Sheets 86 and 96 (Scotland). (Edinburgh: HMSO). 
Eyles, V A, Anderson, J G C, Bonnell, D G R and Butterworth, A R I C. 1946. Brick clays of north-east Scotland. Part I - Description of occurrences; Part II - Report on analyses and physical tests. Geological Survey of Great Britain: Wartime Pamphlet, No.47. 
Peacock, J D. 1999. The pre-Windermere Interstadial (late Devensian) raised marine strata of eastern Scotland and their macrofauna: a review. Quaternary Science Reviews, Vol.18, 1655-1679. 
Merritt, J W, Connell, E R and Bridgland, D R (editors). 2000. The Quaternary of the Banffshire Coast and Buchan; Field Guide. (London: Quaternary Research Association.) 
Merritt, J W, Auton, C A, Connell, E R, Hall, A M and Peacock, J D. 2003. The Cainozoic geology and landscape evolution of north-east Scotland. Memoir of the British Geological Survey, Sheets 66E, 67, 76E, 77, 86E, 87W, 87E, 95, 96W, 96E and 97 (Scotland) 
Buchan, A. 1935. Investigations of the glacial and post-glacial deposits of Loch Spynie. Unpublished PhD thesis, University of Aberdeen. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S095