The BGS Lexicon of Named Rock Units — Result Details

Glen Taitneach Schist Member

Computer Code: GTSC Preferred Map Code: symb
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Graphitic pelite, silver-grey, locally garnetiferous with thin beds of metacarbonate rock. Striped psammites and graphitic pelites locally developed.
Definition of Lower Boundary: Base of dominantly graphitic succession stratigraphically overlying blue-grey metacarbonate rock at the top of the Glen Lochsie Calcareous Schist Member.
Definition of Upper Boundary: Gradational contact with the overlying locally developed Carn an Daimh Transitional Member, marked by the increase in proportion of psammite and quartzite. Where the Transitional Member is absent, sharp boundary with Creag Leacach Quartzite Formation.
Thickness: To 300m
Geographical Limits: Northern part of Sheet 56W and southern part of Sheet 65W.
Parent Unit: Gleann Beag Schist Formation (GBSC)
Previous Name(s): Gleann Beag Schist (-4064)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Glen Taitneach area. 
Reference(s):
Upton, P S, 1986. A structural cross-section of the Moine and Dalradian rocks of the Braemar area. Report of the British Geological Survey, Vol.17, No.1, 9-19. 
Crane, A, Goodman, S, Krabbendam, M K, Leslie, A G, Paterson, I B, Robertson, S and Rollin, K, 1996. Geology of the Glen Shee district. Memoir of the British Geological Survey, Sheet 56W and adjacent areas (Scotland). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S056 S065