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Significant: The Iceland hotspot is widely thought to be the surface expression of a deep mantle plume from the core–mantle boundary that can be traced back in time at least 62 My. However, some lavas contain continental material, which has previously been proposed to have been recycled through the plume. Here, we argue that the plume split off a sliver of continent from Greenland in the Early Eocene. This sliver is now located beneath southeast Iceland where it locally contaminates some of the plume-derived magmas.
Published May 28, 2015 11:50 AM

Published by T. H. Torsvik, H. E. F. Amundsen, R. G. Trønnes, P. V. Doubrovine, C. Gaina, N. J. Kusznir, B. Steinberger, F. Corfu, L. D. Ashwal, W. L. Griffin, S.  C. Werner and Bjørn Jamtveit in PNAS. 

Published Feb. 6, 2015 1:31 PM

This year’s first issue of UiO’s research magazine “Apollon” includes an article on Ole Ivar Ulven’s work on fracture patterns and CO2-sequestration. Anders Malthe-Sørenssen appears in two more articles; one on the importance of computations for the advancement of science and education, and one on the use of modelling to investigate memory and learning processes in the brain. (Articles are in Norwegian.)