The BGS Lexicon of Named Rock Units — Result Details

Greatmoor Hill Vent

Computer Code: GTMO Preferred Map Code: GTMO
Status Code: Full
Age range: Early Mississippian Epoch (CMIE) — Mid Mississippian Epoch (CMIM)
Lithological Description: Pyroclastic breccia or agglomerate in vent, with intrusions of trachyte and dolerite.
Definition of Lower Boundary: Intrusive.
Definition of Upper Boundary: Intrusive.
Thickness: Vent, roughly circular, c.900m in diameter.
Geographical Limits: Hawick area, southern Scotland.
Parent Unit: Kelso Subsuite (KELSO)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  Summit of Greatmoor Hill, c.13km south of Hawick. 
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used: