Geochemical transitions in the ancestral Iceland plume: evidence from the Isle of Mull Tertiary volcano, Scotland
- 1 March 2000
- journal article
- Published by Geological Society of London in Journal of the Geological Society
- Vol. 157 (2) , 261-263
- https://doi.org/10.1144/jgs.157.2.261
Abstract
The Mull Tertiary volcano lies on the eastern edge of the North Atlantic Igneous Province, and was active soon after the initiation of the Iceland plume. Detailed sampling of the Mull lava pile has allowed temporal changes in the mantle source to be determined. A significant change at 700 m above sea level from N‐MORB‐like to ‘Icelandic’ marks the first arrival beneath the region of mantle from the core of the ancestral plume. The earlier basalts represent an outer plume sheath of heated upper mantle. From the initiation of magmatism in Mull, it took 1.9±0.4 Ma for this transition to occur.Keywords
This publication has 8 references indexed in Scilit:
- The North Atlantic Igneous ProvincePublished by Wiley ,2013
- Thermal and chemical structure of the Iceland plumePublished by Elsevier ,1998
- Generation of the Pb isotopic characteristics of the Iceland plumeJournal of the Geological Society, 1995
- Crustal assimilation during turbulent magma ascent (ATA); new isotopic evidence from the Mull Tertiary lava succession, N. W. ScotlandContributions to Mineralogy and Petrology, 1995
- The geochemical stratigraphy, field relations and temporal variation of the Mull–Morvern Tertiary lava succession, NW ScotlandEarth and Environmental Science Transactions of the Royal Society of Edinburgh, 1995
- Polarity, stratigraphy and duration of the Tertiary igneous activity of Mull, ScotlandJournal of the Geological Society, 1987
- Two contrasting styles of interaction between basic magmas and continental crust in the British Tertiary Volcanic ProvinceJournal of Geophysical Research, 1986
- Lewisian gneiss geochemistry and Archaean crustal development modelsEarth and Planetary Science Letters, 1981