Halliburton Geoscientist Part of a Team That Has Discovered Large Explosive Silicic Eruptions That Likely Contributed to Climate Change During the Paleocene-–Eocene Thermal Maximum.
Dr. Graeme Nicoll, is part of a team that has recently published, in Scientific Reports (part of the nature publishing group), on catastrophic volcanism in the Scottish Highlands, during the initial rifting of the North Atlantic.
They propose that large-scale silicic volcanism was common during the opening of the North Atlantic, including in the British Paleogene Igneous Province. Some of these eruptions may have been as large as the Pinatubo or Krakatau eruptions, with pyroclastic ash runout distances of up to 50 km, which are amongst the largest known in the historical record. This is in contrast to the previously held opinion that the region did not have many large explosive eruptions.
These volcanic eruptions, now recognized from exposures in Scotland, Ireland and Greenland, are likely to have contributed to the climatic warming, associated with the Paleocene–Eocene Thermal Maximum (PETM) at ~56 Ma.
You can read more about this research on the BBC News and access the nature website for the full article.