A model for the evolution of the axial zone of mid-ocean ridges as suggested by icelandic tectonics |
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| Authors: | Marc Daignieres Vincent Courtillot Roger Bayer Paul Tapponnier |
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| Institution: | Laboratoire de Géophysique, U.S.T.L., Montpellier France;Institut de Physique du Globe, Université de Paris VI, Paris France;Laboratoire de Géophysique, U.S.T.L., Montpellier France;Laboratoire de Géologie structurale, U.S.T.L., Montpellier France |
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| Abstract: | In Iceland tectonic activity in the neovolcanic zone leads to the formation of three kinds of parallel structures: open fissures, emissive fissures, and normal faults.This observation is used to built a kinematic model which is based on the superposition of lava flows generated from an active central belt of finite width. The results are in good agreement with the recent results in magnetism and tectonic observations of both subaerial and underwater active ridges. |
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