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Authors: | Mantovani, E.* Viti, M.* Babbucci, D.* Albarello, D.* |
Title: | Nubia-Eurasia kinematics: an alternative interpretation from Mediterranean and North Atlantic evidence | Issue Date: | 3-Apr-2007 | Keywords: | Nubia-Eurasia kinematics Mediterranean region Plio-Quaternary deformation |
Subject Classification: | 04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics | Abstract: | 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. |
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Nubia Eurasia_Mantovani.pdf | 733.45 kB | Adobe PDF | View/Open |
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