The BGS Lexicon of Named Rock Units — Result Details

Tulaichean Schist Formation

Computer Code: TUSC Preferred Map Code: symb
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Schistose semipelite to psammite, garnetiferous, with graded bedding. Some layers and lenses of calcareous schists, calcsilicate rocks and quartzite.
Definition of Lower Boundary: Top of Sron nan Dias Pelite and Limestone Formation.
Definition of Upper Boundary: Top of dominantly semipelitic rocks below the dominantly calcareous and graphitic rocks of the overlying Gleann Beag Schist Formation.
Thickness: Not known
Geographical Limits: Glen Shee district: north-west part of Sheet 56W, south-west part of Sheet 65W, south-east part of Sheet 64E and north-east part of Sheet 55E.
Parent Unit: Blair Atholl Subgroup (DABA)
Previous Name(s): Lochaber Subgroup Baddoch Burn Pelite (-1243)
Killiecrankie Schist (-3981)
Crinan Subgroup Caenlochan Schist (-2503)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Glas Tulaichean - Creag a Chaise - Carn an t'Sionnaich area. 
Reference Section  Loch Burn. 
Reference(s):
Bailey, E B, 1925. Perthshire tectonics: Loch Tummel, Blair Atholl and Glen Shee. Transactions of the Royal Society of Edinburgh, Vol.53, 671-698. 
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. 
Harris, A L, Haselock, P J, Kennedy, M J and Mendum, J R, 1994. The Dalradian Supergroup in Scotland, Shetland and Ireland. 33-53 in Gibbons, W E and Harris, A L (editors). A revised correlation of Precambrian rocks in the British Isles. Special Report of the Geological Society, London, No.22. 
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 S064 S055