Computer Code: |
CRV |
Preferred Map Code: |
CRV |
Status Code: |
Full |
Age range: |
Abereiddian Stage (O2)
— Caradoc Series (O4) |
Lithological Description: |
Basaltic pillow lava, with associated bedded chert. |
Definition of Lower Boundary: |
Lower boundary not seen. |
Definition of Upper Boundary: |
Unconformably overlain by the Craighead Limestone Formation. |
Thickness: |
At least 500 m thick. |
Geographical Limits: |
Craighead Inlier, Girvan. |
Parent Unit: |
Not Applicable (-)
|
Previous Name(s): |
Arenig Ballantrae Volcanic Complex (assumed to be part of) [Obsolete Name and Code: Use CRV]
(-2124)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
The northern, western and eastern slopes of Craighead Hill, Girvan. |
Reference(s): |
Lamont, A, and Lindstrom, M, 1957. Arenigian and Llandeilian cherts identified in the Southern Uplands by means of conodonts, etc., Transactions of the Edinburgh Geological Society, Vol. 17, 60-70. |
Peach, B N and Horne, J. 1899. The Silurian Rocks of Britain, Volume 1. Scotland. Memoir of the Geological Survey of the United Kingdom. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S014
S008
|