|
British Tertiary Igneous Province |
Department of Applied Geology, University of Strathclyde, Glasgow G1 1XJ, UK
Department of Geological Sciences, University of Durham, Durham DH1 3LE, UK
Silicic airfall and ashflow tuffs constitute a significant component of the extrusive products of the British Tertiary Volcanic Province. These deposits typically formed early in the evolution of individual volcanic centres as proximal facies accumulations intercalated with polylithic pyroclastic breccias, and occur throughout the evolution of the Province. Rhyolites and, less commonly, trachytes occur as lavas in close spatial and temporal association and, together with the silicic pyroclastic rocks, are interpreted as the extrusive equivalents of the felsic and felsic-mafic (mixed-magma) subvolcanic intrusions which are important members of the central intrusive complexes of the Province. The field relations of the silicic tuffs suggest that the associated pyroclastic breccias are also often extrusive and together they form crater infills.
This article has been cited by other articles:
![]() |
V. R. TROLL, G. R. NICOLL, C. H. DONALDSON, and H. C. EMELEUS Dating the onset of volcanism at the Rum Igneous Centre, NW Scotland Journal of the Geological Society, 2008; 165: 651 - 659. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. T. E. Stevenson, B. O'Driscoll, E. P. Holohan, R. Couchman, R. J. Reavy, and G. D. M. Andrews The structure, fabrics and AMS of the Slieve Gullion ring-complex, Northern Ireland: testing the ring-dyke emplacement model Geological Society, London, Special Publications, 2008; 302: 159 - 184. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. P. L. Walker Flood basalts versus central volcanoes and the British Tertiary volcanic Province Geological Society, London, Memoirs, 1995; 16: 195 - 202. [Abstract] [PDF] |
||||