The BGS Lexicon of Named Rock Units — Result Details

Carse of Gowrie Member

Computer Code: COGW Preferred Map Code: notEntered
Status Code: Full
Age range: Holocene Epoch (QH) — Holocene Epoch (QH)
Lithological Description: Clayey silt and clay, commonly rooty and structureless; highly laminated with silt and very fine- to medium-, locally coarse-grained sand with pebbles up to 5mm and fragments of vivianite; grey and brownish grey, finely micaceous with sporadic dark sulphidic patches.
Definition of Lower Boundary: Unconformable, on the sub-Carse Peat (Flanders Moss Peat Formation) and older Holocene and late Devensian units including the Carey Silt Member.
Definition of Upper Boundary: Upper boundary (unconformable?) with transgressing Gowrie Silt Member (Carse Clay Formation) and commonly at the surface.
Thickness: Veneer to 10m
Geographical Limits: Lower Tay valley from northwest of Perth, the Tay estuary and Firth of Tay, the lower Earn valley, east of Forteviot, and estuary, the lower Eden valley, east of Cupar, and estuary, the Montrose basin area.
Parent Unit: Carse Clay Formation (CARCL)
Previous Name(s): Carse Of Gowrie Clay Member [Obsolete Name And Code: Use COGW] (COGCL)
Alternative Name(s): Carse Clay [Obsolete: use COGW, COSCL]
Stratotypes:
Type Section  Culfargie Borehole, BGS Ref NO11NE/2, from surface to 7.34m in depth, lower Earn estuary. Patterson, I B, et al. 1981. 
Reference Section  Burnside Borehole, BGS Ref NO32NW/11, from surface to 7.97m in depth, lower Tay estuary. Patterson, I B, et al. 1981. 
Reference(s):
Paterson, I B, Armstrong, M and Browne, M A E. 1981. Quaternary estuarine deposits in the Tay-Earn area, Scotland. Report of the Institute of Geological Sciences, No.81/7. 
Armstrong, M, Paterson, I B, and Browne, M A E. 1985. Geology of the Perth and Dundee district. Memoir of the British Geological Survey, Sheets 48W, 48E and 49 (Scotland). 108pp. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S048 S048 S049 S057