| Computer Code: |
FBC |
Preferred Map Code: |
FBC |
| Status Code: |
Full |
| Age range: |
Pridoli Epoch (SO)
— Early Devonian Epoch (DL) |
| Lithological Description: |
A series of approximately concordant microdiorite and tonalite sheets, sills or small stocks intruded into an Early Devonian succession of lavas, tuffs and sandstones. Intrusion breccias form a series of pipes along a fault zone. The whole complex has experienced widespread tourmalinisation. |
| Definition of Lower Boundary: |
Intrusive. |
| Definition of Upper Boundary: |
Intrusive. |
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
Southwest Scotland. |
| Parent Unit: |
Midland Valley Siluro-Devonian Mafic Intrusion Suite (MVMAI)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Fore Burn, about 7km southeast of Straiton, Ayrshire. |
| Reference(s): |
| Eyles, V A, Simpson, J B, and Macregor, A G. 1929. The igneous geology of Central Ayrshire. Transactions of the Geological Society of Glasgow, Vol. 18, 361-387. |
| Allen, P M, Cooper, D C, Parker, M E, Easterbrook, G D, and Haslam, H W. 1982. Mineral exploration in the area of the Fore Burn igneous complex, south-western Scotland. Mineral Reconnaissance Programme Report, Institute of Geological Sciences, No. 55. |
| Eyles, V A, Simpson, J B, and Macgregor, M C. 1949. Geology of Central Ayrshire. Memoir of the Geological Survey of Scotland, British Geological Survey, Sheet 14 (Scotland). |
| Floyd, J D. 1999. Geology of the Carrick - Loch Doon district. Memoir for 1:50 000 geological sheets 8W and 8E (Scotland). (London: The Stationery Office for the British Geological Survey.) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S008
|
