Computer Code: |
TEDO |
Preferred Map Code: |
Temp |
Status Code: |
Full |
Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
Lithological Description: |
Calcareous and non-calcareous semipelite at base passes upwards into well-bedded tremolitic dolomite. At top dolomite passes upward into semipelite and fine-grained psammite before upper boundary with Schiehallion Quartzite is reached. |
Definition of Lower Boundary: |
Sharp change from quartzite to calc-semipelite and non-calcareous semipelite. |
Definition of Upper Boundary: |
Change from finely-bedded semipelite to well-bedded quartzite. |
Thickness: |
0 - 50m |
Geographical Limits: |
Discontinuous occurrence from closure of Errochty Synform [NN 7131 6655] to near Loch Kinardochy [NN 7750 5440]. Occurs sporadically east of Loch Tay Fault near Loch Tummel [NN 8334 6005] and Kincraigie [NN 892 678]. |
Parent Unit: |
Schiehallion Quartzite Formation (DBSQ)
|
Previous Name(s): |
Dolomitic Beds [Obsolete Name and Code: Use TEDO]
(-3720)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Tempar Burn 800m south of East Tempar. |
Reference(s): |
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. |
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). |
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. |
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. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S055
S055
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