| Computer Code: |
KYPS |
Preferred Map Code: |
KynP |
| Status Code: |
Full |
| Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
| Lithological Description: |
Thickly-bedded schistose psammite. Relict bedding seen in lower few hundred metres, but more flaggy towards top. Cross-bedding well-developed, giving good younging directions. Minor quartzite units locally present. |
| Definition of Lower Boundary: |
Gradational boundary with underlying Kynachan Quartzite Formation. |
| Definition of Upper Boundary: |
Sharp, conformable boundary with Dunalastair Quartzite Formation. |
| Thickness: |
0 - 700m |
| Geographical Limits: |
From Allt na Moine Buidhe near Mullinavadie [NN 713 611] via the south slopes of Creag Kynachan [NN 751 576] and the Allt Kynachan [NN 778 575] to the Loch Tay Fault [NN 802 598]. Also has small outcrop near the structural dome resulting from interference of the Clunes and Bohespic antiforms [NN 744 627]. |
| Parent Unit: |
Strathtummel Subgroup (STEL)
|
| Previous Name(s): |
Kynachan Psammite [Obsolete Name and Code: Use KYPS]
(-2277)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
South side of Creag Kynachan. |
| Reference(s): |
| 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. |
| Thomas, P R, 1980. The stratigraphy and structure of the Moine rocks north of the Schiehallion Complex, Scotland. Journal of the Geological Society, London, Vol.137, 469-482. |
| Treagus, J E. 2001. Solid geology of the Schiehallion district. Memoir of the British Geological Survey, Sheet 55W (Scotland). |
| Stephenson, D and Gould, D. 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S055
|
