Interesting assessment of the Bardabunga intrusion from the resourceful Volcano Café blog. Recommended reading indeed. Thank you Carl – very much appreciated.
Image by Margaret E. Hartley/Thor Thordarson. Upper part shows a closed propagating dyke. The lower shows a rift open down to the mantle. The upper version draws its magma from a central volcano, the lower from the mantle. Upper alternative would give a smaller eruption than the lower.
Richie, one of our readers emailed in a good question that is a good starting point for a brief update on Bárðarbunga.
“Could you do an article comparing this intrusion to others? Looking at the post it appears that it is almost 40 Km long but how wide is it and in terms of volume. I am not sure if any diagrams are available to give an indication of the size underground. ”
It is hard to compare this intrusion to any other that we have instrumental data on. The main reason is that we have not seen one like this…
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