Computer Code: |
ORKG |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Tonian Period (AT)
— Tonian Period (AT) |
Lithological Description: |
Psammite, variably gneissose, with minor quartzite and pelite. |
Definition of Lower Boundary: |
Not exposed; unknown. |
Definition of Upper Boundary: |
Likely overlain by North Holm Gneiss Formation (NHGN). |
Thickness: |
none recorded or not applicable
|
Geographical Limits: |
NE Shetland: Unst, Fetlar, Linga. |
Parent Unit: |
Westing Group (WEGP)
|
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. |
Flinn, D. 2014. Geology of Unst, Fetlar and adjacent islands. Memoir of the British Geological Survey, Sheets 131 and part of 130, Scotland. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S131
|