Computer Code: |
INAV |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Tonian Period (AT)
— Tonian Period (AT) |
Lithological Description: |
Gneissose pelite, with schistose amphibolite layers. |
Definition of Lower Boundary: |
Occurs within the Bettyhill Formation. |
Definition of Upper Boundary: |
Occurs within the Bettyhill Formation. |
Thickness: |
c. 100 m (estimate - post-deformational thickness). |
Geographical Limits: |
Northern Highlands: Sutherland, Strath Naver. |
Parent Unit: |
Bettyhill Formation (BTYH)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
Krabbendam, M. 2021. A stratigraphic framework for the early Neoproterozoic successions of the Northern Highlands of Scotland. UK Stratigraphic Framework Series. British Geological Survey Open Report, OR/21/072. 86pp. |
British Geological Survey. 1996. Strathy Point, Scotland. Sheet 115W. Solid Geology, 1:50 000 (Keyworth, Nottingham: British Geological Survey.) |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S115
|