The BGS Lexicon of Named Rock Units — Result Details

Stoneyquoy Sandstone Formation [Obsolete Code: No Replacement]

Computer Code: STQS Preferred Map Code: STS
Status Code: Full
Age range: Mid Devonian Epoch (DM) — Mid Devonian Epoch (DM)
Lithological Description: Cross-bedded sandstone.
Definition of Lower Boundary: Flagstone - sandstone junction.
Definition of Upper Boundary: Base of the ashy sediments underlying the basalt lavas assigned to the 'Hoy Volcanic Formation'.
Thickness: c 35m
Geographical Limits: Hoy Island and neighbouring islands immediately to east.
Parent Unit: Eday Group (EDY)
Previous Name(s): Lower Eday Sandstone (-3519)
Alternative Name(s): none recorded or not applicable
Partial Type Section  Uppermost part: cliff section on western side of Too of the Head, Hoy. 
Partial Type Section  Basal part: coastal section southwestwards along the northeastern shore of North Bay, Hoy. 
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used: