Nubia-Eurasia kinematics: an alternative interpretation from Mediterranean and North Atlantic evidence

It is argued that the Plio-Quaternary deformation pattern in the Mediterranean region is compatible with a SSW-NNE convergence between Africa (Nubia) and Eurasia and that the significant difference between this kinematics and the one provided by global models (SSE-NNW convergence, e.g., the NUVEL-1)...

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Bibliographic Details
Published in:Journal of Geophysical Research: Solid Earth
Main Authors: Mantovani, E., Viti, M., Babbucci, D., Albarello, D.
Other Authors: Mantovani, E.; Dipartimento di Scienze della Terra, Università degli Studi di Siena, Viti, M.; Dipartimento di Scienze della Terra, Università degli Studi di Siena, Babbucci, D.; Dipartimento di Scienze della Terra, Università degli Studi di Siena, Albarello, D.; Dipartimento di Scienze della Terra, Università degli Studi di Siena, Dipartimento di Scienze della Terra, Università degli Studi di Siena
Format: Manuscript
Language:English
Published: 2007
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Online Access:http://hdl.handle.net/2122/2071
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Summary:It is argued that the Plio-Quaternary deformation pattern in the Mediterranean region is compatible with a SSW-NNE convergence between Africa (Nubia) and Eurasia and that the significant difference between this kinematics and the one provided by global models (SSE-NNW convergence, e.g., the NUVEL-1) may be due to the fact that those models interpret North Atlantic data by adopting an oversimplified two-plate configuration, which cannot account for the occurrence of significant seismotectonic activity inside the presumed Nubia and Eurasia blocks. It is shown that the adoption of a new plate configuration involving the Iberia and Morocco microplates, strongly suggested by geological and seismotectonic evidence, makes it possible to identify a kinematic model compatible within errors with the constraints recognized in the Mediterranean region and with the NUVEL-1 North Atlantic data set. Some considerations are made about the reason why the present-day Nubia-Eurasia kinematic models inferred from geodetic observations are significantly different from long-term models, such as model NUVEL-1 and the one proposed in this work. Submitted open