| Computer Code: |
BLEG |
Preferred Map Code: |
BLGF |
| Status Code: |
Full |
| Age range: |
Ediacaran Period (AD)
— Comley Series (EC) |
| Lithological Description: |
Metasandstone, arenite to wacke, pale to dark grey, fine- to very coarse-grained, locally gritty and pebbly, interbedded with semipelite and pelite; contains brown-weathering calcareous nodules in upper part. Generally becomes coarser-grained upwards. |
| Definition of Lower Boundary: |
Outgoing of chloritic and epidotic, pale to dark green and grey rocks or outgoing of clean, coarse arenites and incoming of more matrix-rich arenites and wackes. |
| Definition of Upper Boundary: |
Outgoing of chloritic and feldspathic coarse arenites and wackes and incoming of clean arenites (base of Keltie Water Grit and Loch Ard Grit formations). |
| Thickness: |
In excess of 2000m (estimated) |
| Geographical Limits: |
Southern Highland Group outcrop across southern Highlands of Scotland, from Glen Clova and Glen Esk to the Kintyre peninsula, Argyllshire. |
| Parent Unit: |
Southern Highland Group (SOHI)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
Ledard Burn, Kinlochard, north of Loch Ard, Aberfoyle, Perthshire. |
| Reference Section |
From north side of Stuc a' Chroin (Coire Fhuadaraich). South-south-east down Gleann a' Chroin to the Keltie Water. |
| Type Section |
Type section/area. Milton Glen Burn section and surrounding area of Ben Ledi, north of Loch Venachar, Perthshire, on southeast limb of Ben Ledi Antiform. |
| Reference(s): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S038
S038
S039
S046
S047
S047
|
