| Computer Code: |
CLQU |
Preferred Map Code: |
symb |
| Status Code: |
Full |
| Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
| Lithological Description: |
White quartzite lenses succeeded upwards by cream quartzite and micaceous psammite. |
| Definition of Lower Boundary: |
Base of dominantly quartzite succession overlying dominantly graphitic succession of the Blair Atholl Subgroup. Base of boulder bed, where developed. |
| Definition of Upper Boundary: |
Top of dominantly quartzitic succession below dominantly graphitic succession of the overlying Ben Eagach Schist Formation. |
| Thickness: |
Not known. |
| Geographical Limits: |
Braemar, Ballater and Glen Shee districts. |
| Parent Unit: |
Islay Subgroup (DBIS)
|
| Previous Name(s): |
Creag Leacach Quartzite [Obsolete Name and Code: Use CLQU]
(-3308)
|
| Alternative Name(s): |
Schiehallion Quartzite [Obsolete: use DBSQ]
|
| Stratotypes: |
| Type Area |
Creag Leacach area. |
| 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. |
| 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). |
| 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. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S065
S056
S065
|
