The BGS Lexicon of Named Rock Units — Result Details

Trowie Glen Sandstone Member

Computer Code: TGS Preferred Map Code: TGS
Status Code: Full
Age range: Givetian Age (DV) — Frasnian Age (DR)
Lithological Description: Non-pebbly sandstone.
Definition of Lower Boundary: Gradational contact with laminated sandstone at top of pebbly sandstones characterising the Haist Pebbly Sandstone Member.
Definition of Upper Boundary: Youngest unit in Orkney Old Red Sandstone sequence, no younger beds known in the area.
Thickness: 1300m at Haist [HY 2320 0218] on Hoy Island, Orkney.
Geographical Limits: Orkney Islands.
Parent Unit: Hoy Sandstone Formation (HOY)
Previous Name(s): Trowie Glen Sandstone Formation (-3080)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Haist shoreline, Hoy Island, Orkney. 
Reference(s):
McAlpine, A, 1978. The Upper Old Red Sandstone of Orkney, Caithness and adjacent areas. PhD Thesis, University of Newcastle-upon-Tyne. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S117 S119