The BGS Lexicon of Named Rock Units — Result Details

Cowie Harbour Siltstone Member

Computer Code: CHSI Preferred Map Code: CHSI
Status Code: Full
Age range: Homerian Age (SH) — Gorstian Age (SG)
Lithological Description: A fine- to medium-grained lithic sandstone interbedded with minor amounts of conglomerate and siltstone.
Definition of Lower Boundary: Grey, cross-laminated sandy siltstones of the Cowie Harbour Siltstone Member overlying red, trough cross-bedded medium-grained sandstone of the Red Sandstone Member
Definition of Upper Boundary: Grey, laminated sandy siltstones overlain by red, trough, cross-bedded and horizontally-laminated, medium-grained sandstone of the Carron Sandstone Formation.
Thickness: From 36 m to 90 m thick.
Geographical Limits: Stonehaven area.
Parent Unit: Cowie Sandstone Formation (CWE)
Previous Name(s): Dictyocaris Member (Obsolete Name And Code: Use CHSI) (-128)
Replaced By Cowie Harbour Siltstone Member (*142)
Cowie Harbour Fish-Bed [Obsolete Name And Code: Use CHSI] (CWFB)
Dictyocaris Member [Obsolete Name And Code: Use CHSI] (DICT)
Alternative Name(s): none recorded or not applicable
Type Section  Foreshore at Cowie Harbour. 
Campbell, R, 1912. Cambrian, Downtonian and Lower Old Red Sandstone rocks near Stonehaven. Proceedings of the Geologists' Association, Vol.23, 296. 
Marshall, J E A, 1991. Palynology of the Stonehaven Group, Scotland: Evidence for a mid-Silurian age and its geological implications. Geological Magazine, Vol.128 (3), p.283-286. 
Carroll, S, 1994. Geology of the Stonehaven District. 1:10 000 Sheets NO88NW, NO88NE, NO88SW and NO88SE. British Geological Survey Technical Report WA/94/19. 
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. 
Campbell, R, 1913. The geology of south-eastern Kincardineshire. Transactions of the Royal Society of Edinburgh, Vol.48, pp.923-960. 
Armstrong, M, Donovan, R M and Paterson, I B, 1978. Angus and Kincardine. In Friend, P F and Williams, B P J (editors), A field guide to selected outcrop areas of the Devonian of Scotland, the Welsh Borderland and South Wales. Palaeontological Association. 
Wellman, C, 1993. A land plant microfossil assemblage of Mid Silurian age from the Stonehaven Group, Scotland. Journal of Micropalaeontology, Vol.12, 47-66. 
Hickling, G, 1908. The Old Red Sandstone of Forfarshire Geological Magazine, Vol.5 (new series) p.396-408. 
Westoll, T S, 1945. A new cephalaspid fish from the Downtonian of Scotland.Transactions of the Royal Society of Edinburgh, Vol.61, p.341-357. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S067 S066