(Mediterranean Sea) and Implications for Its Neotectonics
Marine and Petroleum Geology 104 (2019) 361–374 Contents lists available at ScienceDirect Marine and Petroleum Geology journal homepage: www.elsevier.com/locate/marpetgeo Research paper Active degassing across the Maltese Islands (Mediterranean Sea) and T implications for its neotectonics ∗ Aaron Micallefa, , Daniele Spatolaa, Antonio Caracausib, Francesco Italianob, Giovanni Barrecac, Sebastiano D'Amicod, Lorenzo Petronioe, Franco Corene, Lorenzo Facchine, Rita Blanose, Alessandro Pavane, Paolo Paganinie, Marco Tavianif,g,h a Marine Geology and Seafloor Surveying Group, Department of Geosciences, University of Malta, Msida, Malta b Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Palermo, Italy c Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Catania, Catania, Italy d Seismic Monitoring and Research Group, Department of Geosciences, University of Malta, Msida, Malta e Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Trieste, Italy f CNR-ISMAR, Bologna, Italy g Stazione Zoologica Anton Dohrn, Napoli, Italy h Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, USA ARTICLE INFO ABSTRACT Keywords: The Maltese Islands, located in the central Mediterranean Sea, are intersected by two normal fault systems Gas seepage associated with continental rifting to the south. Due to a lack of evidence for offshore displacement and insig- Faults nificant historical seismicity, the systems are thought to be inactive and the rift-related deformation isbelieved Neotectonics to have ceased. In this study we integrate aerial, marine and onshore geological, geophysical and geochemical Maltese Islands data from the Maltese Islands to demonstrate that the majority of faults offshore the archipelago underwent Mediterranean sea extensional to transtensional deformation during the last 20 ka.
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