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 [Obsolete Name and Code: Use TGS]
(-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
|