The BGS Lexicon of Named Rock Units — Result Details

Broad Law Intrusion

Computer Code: BROD Preferred Map Code: BROD
Status Code: Full
Age range: Pridoli Epoch (SO) — Early Devonian Epoch (DL)
Lithological Description: Lenticular granodiorite body c. 1km x 100m, elongated NE - SW.
Definition of Lower Boundary: Intrusive into Portpatrick Formation, possibly along a fault.
Definition of Upper Boundary: Intrusive into Portpatrick Formation.
Thickness: c. 1km x 100m vertical intrusion.
Geographical Limits: Southeast Scotland.
Parent Unit: South Of Scotland Granitic Suite (SSCGR)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Broadlaw Quarry, B7007, Middleton, East Lothian. 
Reference(s):
Mould, D D C P. 1947. The Broadlaw "granite". Geological Magazine, Vol.84, 178 - 180. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S024