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
Type Section  Haist shoreline, Hoy Island, Orkney. 
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:
S119 S117