The BGS Lexicon of Named Rock Units — Result Details

Kelhead Breccia Member

Computer Code: KHBR Preferred Map Code: KHBR
Status Code: Full
Age range: Permian Period (P) — Permian Period (P)
Lithological Description: A coarse-grained, poorly sorted, limestone breccia, mostly derived from local Carboniferous Limestone, with minor sandstone. The Kelhead Breccia is considered to be a local representative of the Brockram within the Annan sub-basin of the Carlisle Basin. Although Holliday et al. (2001) included thin (<4m) basal breccias of the Annan sub-basin within the Eden Shales Formation, it is recommended that the significantly thicker and lithologically distinctive Kelhead Breccia be assigned as a member of the Brockram.
Definition of Lower Boundary: Unconformable on strata of the Tyne Limestone Formation of Carboniferous age, or Early Palaeozoic rocks.
Definition of Upper Boundary: Locally unconformably overlain by strata of the Eden Shales Formation.
Thickness: 15 m thick.
Geographical Limits: Localised distribution in Annandale, south-west Scotland, on Sheets 6W, 6E, 10W and 10E.
Parent Unit: Brockram (BK)
Previous Name(s): Part Of: Brockram (-4117)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Disused quarry at Daltonbrook, 350 m south-east of Copewood Cottage, 6 km south-west of Lockerbie, Dumfries and Galloway. Dean, 1999. 
Type Section  Kelhead Quarry is situated immediately east of Kelhead Moss Plantation by the A75 trunk road, 3.5 km south-west of Brydekirk, and 5 km north-west of Annan, Dumfries and Galloway. Holliday et al., 2001. 
Reference(s):
Brookfield, M E, 1978. Revision of the Stratigraphy of Permian and Supposed Permian Rocks of Southern Scotland. Geologische Rundschau, Vol.67, p.110-143. 
Brand, P J. 1992. Reports on fossil collections from Sheet 10W (Scotland). British Geological Survey Technical Report WH92/100C. 
Harkness, R. 1856. On the sandstones and breccias of the south of Scotland of an age subsequent to the Carboniferous period. Quareterly Journal of the Geological Society, Vol. 12, p.254-267. 
Holliday, D W, Warrington, G, Brookfield, M E, McMillan, A A and Holliday, S. 2001. Permo-Triassic rocks in boreholes in the Annan-Canonbie area, Dumfries and Galloway, southern Scotland. Scottish Journal of Geology, vol. 37, p.97-113. 
Dean, M T. 1999. Fauna from and biostratigraphy of a breccia at Daltonhook, Sheet 10W (Scotland). British Geological Survey Technical Report WH/99/76R. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S006 S010 S010