The BGS Lexicon of Named Rock Units — Result Details
Ben Lawers Schist Formation
| Computer Code: | BLAS | Preferred Map Code: | symb |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ) | ||
| Lithological Description: | Calcareous schist with thin layers of psammite and hornblende schist with white metacarbonate rock, quartzite and graphitic pelite. | ||
| Definition of Lower Boundary: | Base of calcareous succession overlying the dominantly graphitic Ben Eagach Schist Formation. | ||
| Definition of Upper Boundary: | Base of dominantly fine-grained amphibolitic succession of the Farragon Volcanic Formation west of Glen Shee. Base of dominantly psammite and semipelitic succession of Ben Lui Schist Formation east of Glen Shee. | ||
| Thickness: | c.700m | ||
| Geographical Limits: | Tyndrum to the Glen Shee area. | ||
| Parent Unit: | Easdale Subgroup (DBED) | ||
| Previous Name(s): | Ben Lawers Schist [Obsolete Name And Code: Use BLAS]
(DBBL)
Ben Lawers Schist [Obsolete Name and Code: Use BLAS] (*274) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Ben Lawers area, Perthshire | ||
| Reference(s): | |||
| 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). | |||
| 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. | |||
| 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). | |||
| Sturt, B A, 1960. The geological structure of the area south of Loch Tummel. Quarterly Journal of the Geological Society of London, Vol.117, 131-156. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S056 S055 S055 S054 S046 S047 S047 S065 | |||