The BGS Lexicon of Named Rock Units — Result Details

Rascarrel Member

Computer Code: RASC Preferred Map Code: RASC
Status Code: Full
Age range: Arundian Substage (CJ) — Holkerian Substage (CQ)
Lithological Description: Conglomeratic sandstone interbedded with thin beds of marl and siltstone.
Definition of Lower Boundary: Faulted and unconformable contacts with Lower Palaeozoic Ross Formation (Hawick Group). In the Rerrick Outlier the strata are faulted against the Orroland Formation (Lower Carboniferous).
Definition of Upper Boundary: Not seen.
Thickness: >360m
Geographical Limits: Rascarrel Bay (Rerrick Outlier); Castlehill Point to Gutcher's Isle and Portling to Portowarren shores (Colvend Outlier), Kirkcudbrightshire, south-western Scotland (Southern Uplands).
Parent Unit: Fell Sandstone Formation (FELL)
Previous Name(s): Rascarrel Sandstone Formation (-479)
Rascarrel Group (-3632)
Rascarrel Sandstones And Conglomerates (-4284)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Partial Type Section  Coastal section between Castle Muir Point and Rascarrel Burnfoot, Kirkcudbrightshire. 
Partial Type Section  Coastal section between Castlehill Point and Gutcher's Isle, Kirkcudbrightshire. 
Reference(s):
Deegan, C E. 1973. Tectonic control of sedimentation at the margin of a Carboniferous depositional basin in Kirkcudbrightshire. Scottish Journal of Geology, Vol. 9, p. 1 - 28. 
Craig, G Y and Nairn, A E M. 1956. The Lower Carboniferous outliers of the Colvend and Rerrick shores, Kirkcudbrightshire. Geological Magazine, Vol.93, 249-256. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S005