The BGS Lexicon of Named Rock Units — Result Details

Killiecrankie Schist Formation

Computer Code: DBKR Preferred Map Code: KicS
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Pelite, semipelite and psammite, well-bedded, usually garnetiferous, locally slightly graphitic and kyanite-bearing. Cross-bedding developed at lower boundary; includes quartzite beds in A9 section near Killiecrankie.
Definition of Lower Boundary: Change from fine-grained quartzite of Schiehallion Quartzite Formation to dark, layered semipelite and thin-bedded psammite containing 0.08m layers of fine-grained garnet-amphibolite.
Definition of Upper Boundary: First appearance of massive pebbly quartzite of Carn Mairg Quartzite Formation within 80m transition zone from impure quartzites and semipelites of Killiecrankie Schist Formation.
Thickness: 0 - 900m in Sheet 55W
Geographical Limits: From Carn Liath [NN 994 666], where it is cut off by the Killiecrankie Slide, southwards to Kinloch Rannoch [NN 659 576]. to the west of this, it is cut off by the Schiehallion Slide.
Parent Unit: Easdale Subgroup (DBED)
Previous Name(s): Killiecrankie Schist (-3981)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  From Geal Charn via Meallanan Odhar to Coire Cruach Sneachda. 
Reference(s):
Treagus, J E. 2001. Solid geology of the Schiehallion district. Memoir of the British Geological Survey, Sheet 55W (Scotland). 
Bailey, E B, 1925. Perthshire tectonics: Loch Tummel, Blair Atholl and Glen Shee. Transactions of the Royal Society of Edinburgh, Vol.53, 671-698. 
Stephenson, D and Gould, D , 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. 
Barrow, G, Grant Wilson, J S and Cunningham Craig, E H, 1905. The geology of the country around Blair Atholl, Pitlochry and Aberfeldy. Memoir of the British Geological Survey, Scotland (Sheet 55). 
Bailey, E B and McCallien, W J, 1937. Perthshire tectonics: Schiehallion to Glen Lyon. Transactions of the Royal Society of Edinburgh, Vol.59, 79-117. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S055 S055