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Enlargement of the active rift during glaciations

Abstract : During the last glaciation, an ice sheet covered Iceland approximately 1000 m thick. A reconstruction of the ice flow lines shows that the ice sheet was partly drained through fast-flowing streams. The major drainage routes correlate with locations of geothermal anomalies, suggesting that ice stream activity was favoured by water produced in regions of high geothermal heat flux. A widening of active rift zone was also deduced revealing a coupling between deep and surface processes.
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Submitted on : Tuesday, May 4, 2010 - 5:11:42 PM
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Olivier Dauteuil, Olivier Bourgeois, Brigitte van Vliet-Lanoë. Enlargement of the active rift during glaciations. Iceland in the Central Northern Atlantic : hotspot, sea currents and climate change, May 2010, Plouzané, France. ⟨hal-00480686⟩

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