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Laboratory experiments of slab break-off and slab dip reversal: insight into the Alpine Oligocene reorganization

Abstract : We present laboratory experiments to study the consequence of the rupture of a subducting slab on the deep geometry of the subduction zone. In our experiments, slab break-off occurs after the entrance of buoyant material at trench causing a slowing down of the subduction, and producing an increase of the shortening rate and a transient episode of subduction dip reversal. We discuss the potential application of these processes to the recent collisional evolution of the Alps proposing that the rupture of the slab produced a re-organisation of the belt with a transition from one sided to a doubly vergent orogen.
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https://hal.archives-ouvertes.fr/hal-00325527
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Submitted on : Thursday, December 4, 2008 - 12:48:57 PM
Last modification on : Wednesday, June 1, 2022 - 3:56:31 AM
Long-term archiving on: : Friday, June 4, 2010 - 11:55:25 AM

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Vincent Regard, Claudio Faccenna, Olivier Bellier, Joseph Martinod. Laboratory experiments of slab break-off and slab dip reversal: insight into the Alpine Oligocene reorganization. Terra Nova, Wiley-Blackwell, 2008, 20, pp.267-273. ⟨10.1111/j.1365-3121.2008.00815.x⟩. ⟨hal-00325527⟩

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