The BGS Lexicon of Named Rock Units — Result Details

Lyre Geo Sandstone Member

Computer Code: LYR Preferred Map Code: Lyr
Status Code: Full
Age range: Givetian Age (DV) — Givetian Age (DV)
Lithological Description: Poorly-cemented pale greyish-orange sandstone with thin pale olive mudstones.
Definition of Lower Boundary: Gradational contact with Lang Geo Sandstone Member.
Definition of Upper Boundary: Unconformably overlain by Haist Pebbly Sandstone Member.
Thickness: 65m at Lyre Geo HY 265 023, Hoy Island, Orkney.
Geographical Limits: Orkney Islands.
Parent Unit: Hoy Sandstone Formation (HOY)
Previous Name(s): Lyre Geo Sandstone Formation (-4175)
Alternative Name(s): none recorded or not applicable
Type Section  Cliff section at Lyre Geo, 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:
S117 S119