The BGS Lexicon of Named Rock Units — Result Details

Plewland Sandstone Formation

Computer Code: PLWS Preferred Map Code: PLWS
Status Code: Full
Age range: Wenlock Epoch (SW) — Wenlock Epoch (SW)
Lithological Description: Sandstone, greyish red or pale brown, medium- to fine-grained, cross-bedded with a few partings of red-brown siltstone.
Definition of Lower Boundary: Taken at top of highest conglomerate bed in underlying formation (Middlefield Conglomerate).
Definition of Upper Boundary: Taken at base of overlying conglomerate formation (Greywacke Conglomerate).
Thickness: To 1400m
Geographical Limits: Muirkirk to Strathaven area, Strathclyde region, Central Scotland.
Parent Unit: Dungavel Group (DGL)
Previous Name(s): Plewlands Formation (-1761)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Cliff section in the Glengave Water. 
Reference(s):
Jennings, J S. Not published. The geology of the eastern part of the Lesmahagow Inlier. Ph.D.Thesis, University of Edinburgh, 1961. 
Walton, E K, 1965. "In" Craig, G Y, (Editor). The Geology of Scotland: Lower Palaeozoic rocks. Oliver and Boyd, Edinburgh, 161-227. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S023 S015