| Computer Code: |
EYVO |
Preferred Map Code: |
EYVO |
| Status Code: |
Full |
| Age range: |
Early Devonian Epoch (DL)
— Early Devonian Epoch (DL) |
| Lithological Description: |
Olivine-phyric basaltic lavas, basaltic andesites and andesites with interbeds of tuff and tuffaceous rocks, and rare dacite or rhyodacite. |
| Definition of Lower Boundary: |
At White Heugh, south of St Abb's Head, where the lavas overlie the 'Bell Hill sediments' of the Great Conglomerate Formation and north-west of Coldingham, unconformably overlying Silurian strata. |
| Definition of Upper Boundary: |
The top of the basaltic to andesitic lavas, below the Auchencrow Burn Sandstone Formation. |
| Thickness: |
From 500 to 600 m thick. |
| Geographical Limits: |
Between Eyemouth and St Abb's Head. |
| Parent Unit: |
Reston Group (REST)
|
| Previous Name(s): |
Lower Devonian [Lower Old Red Sandstone] Lavas [Obsolete Name and Code: Use EYVO]
(-3396)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Along the coastline from Pettico Wick to St Abb's Harbour. Stephenson, D. 1999. |
| Reference(s): |
| Stephenson, D. 1999. Pettico Wick to St Abb's Harbour, 552 - 556 in Caledonian Igneous Rocks of Great Britain. (Geological Conservation Review Series No. 17). Stephenson, D and six others (editors). [Peterborough: Joint Nature Conservation Committee.] |
| Greig, D C. 1988. Geology of the Eyemouth district. Memoir of the British Geological Survey, Sheet 34 (Scotland). |
| Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) |
| Browne, M A E, Smith, R A, and Aitken, A M. 2002. Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. British Geological Survey Research Report RR/01/04. 67 pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S034
|
