| 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 [Obsolete Name and Code: Use KHBR]
(-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): |
| 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. |
| Brookfield, M E. 1978. Revision of the Stratigraphy of Permian and Supposed Permian Rocks of Southern Scotland. Geologische Rundschau, Vol. 67, 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. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S006
S010
S010
|
