The BGS Lexicon of Named Rock Units — Result Details
Lamancha Conglomerate Formation
Computer Code: | LCHA | Preferred Map Code: | LCHA |
---|---|---|---|
Status Code: | Full | ||
Age range: | Ludlow Epoch (SU) — Ludlow Epoch (SU) | ||
Lithological Description: | Purple and reddish brown conglomerates and breccias in a sandstone matrix, with pebbles and rounded boulders of local derivation, up to 0.4 m in diameter of wacke and local 'Haggis Rock'. | ||
Definition of Lower Boundary: | Unconformably overlies Ordovician rocks of the Southern Upland Terrane. | ||
Definition of Upper Boundary: | Not seen, as it is cut by the Southern Upland fault. | ||
Thickness: | At least 50 m thick. | ||
Geographical Limits: | The Peebles area of the Southern Uplands. | ||
Parent Unit: | Reston Group (REST) | ||
Previous Name(s): | Lower Old Red Sandstone Group
(LORS)
Lower Old Red Sandstone Group (LORS) |
||
Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Area | Lamancha, 4 km south-west of Leadburn, Peebleshire. Brown et al., 2001. | ||
Reference(s): | |||
Browne, M A E, Smith, R A, and Aitken, A M. 2002. Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. British Geological Survey Research Report RR/01/04. 67 pp. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
S024 |