The BGS Lexicon of Named Rock Units — Result Details

Loch Tay Limestone Formation

Computer Code: LTAY Preferred Map Code: symb
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Schistose calcareous psammite and semipelite with units of blue-grey, crystalline meta-carbonate rock up to 10m thick.
Definition of Lower Boundary: Base of calcareous lithologies above dominantly semipelitic rocks of the Ben Lui Schist Formation.
Definition of Upper Boundary: Top of highest metacarbonate rock unit below the Mount Blair Psammite and Semipelite Formation or undivided Southern Highland Group.
Thickness: Not known.
Geographical Limits: Campbeltown to Glen Isla.
Parent Unit: Tayvallich Subgroup (DBTV)
Previous Name(s): Loch Tay Limestone [Obsolete Name And Code: Use LTAY] (DBLT)
Loch Tay Limestone (*398)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  East of Auchintaple Loch - several small quarries. 
Reference Section  Wester Bleaton Quarry. 
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. 
Johnstone, G S and Smith, D I, 1965. Geological observations concerning the Breadalbane Hydroelectric Project, Perthshire. Bulletin of the Geological Survey of Great Britain, No.22, 1-52. 
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). 
Elles, G L, 1926. The geological structure of Ben Lawers and Meall Corranaich (Perthshire). Quarterly Journal of the Geological Society, London, Vol.82, 304-331. 
McCallien, W J, 1929. The metamorphic rocks of Kintyre. Transactions of the Royal Society of Edinburgh, Vol.56, 409-436. 
Roberts, J L, 1966. Sedimentary affiliations and stratigraphic correlation of the Dalradian rocks in the south-west Highlands of Scotland. Scottish Journal of Geology, Vol.2, 200-223. 
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). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S056 S055 S029 S020 S012 S028 S055 S038 S045 S054 S046 S047 S047 S046