Abstract
We performed geodetic strain rate analyses in southern Italy, using new GPS velocities. Two-dimensional strain and rotation rate fields were estimated and results show that most of the shortening is distributed in the northern Sicily offshore. Extension becomes more evident and comparable with shortening on the eastern side of the same margin, and greater in the eastern Sicily offshore. Principal shortening and extension rate axes are consistent with long-term geological features: seismic reflection profiles show both active compressive and extensional faults affecting Pleistocene strata. We show evidence for contemporaneous extension and transtension in the Cefalù Basin. Combining geodetic data and geological features point to the coexistence of independent geodynamic processes, i.e., the active E–W backarc spreading in the hangingwall of the Apennines subduction zone and shortening along the southern margin of the Tyrrhenian backarc basin operated by the NNW-motion of Africa relative to Eurasia.
References
Allmendinger RW, Reilinger R, Loveless J (2007) Strain and rotation rate from GPS in Tibet, Anatolia, and the Altiplano. Tectonics 26. doi:10.1029/2006TC002030
Altamimi Z, Collilieux X, Legrand J, Garayt B, Boucher C (2007) ITRF2005: a new release of the international terrestrial reference frame based on time series of station positions and earth orientation parameters. J Geophys Res 112. doi:10.1029/2007JB004949
Argnani A, Serpelloni E, Bonazzi C (2007) Pattern of deformation around the central Aeolian Islands: evidence from multichannel seismics and GPS data. Terra Nova 19:317–323
Bacini Sedimentari (1980) Dati geologici preliminari sul bacino di Cefalù (Mar Tirreno). Ateneo Parmense. Acta Nat 16:3–18
Beutler G et al (2007) Bernese GPS software. In: Dach R, Hugentobler U, Fridez P, Meindl M (eds) Astronomical Institute, University of Bern
Bianco G, Devoti R, Luceri V (2003) Combination of loosely constrained solutions. IERS Tech Note 30:107–109
Billi A, Barberi G, Faccenna C, Neri G, Pepe F, Sulli A (2006) Tectonics and seismicity of the Tindari Fault System, southern Italy: crustal deformations at the transition between ongoing contractional and extensional domains located above the edge of a subducting slab. Tectonics 25. doi:10.1029/2004TC001763
Billi A, Presti D, Faccenna C, Neri G, Orecchio B (2007) Seismotectonics of the Nubia plate compressive margin in the south Tyrrhenian region, Italy: clues for subduction inception. J Geophys Res 112. doi:10.1029/2006JB004837
Calais E, Nocquet JM, Jouanne F, Tardy M (2002) Current strain regime in the Western Alps from continuous global positioning system measurements, 1996–2001. Geology 30:651–654
Cardozo N, Allmendinger RW (2009) SSPX: a program to compute strain from displacement/velocity data. Comput Geosci 35:1343–1357
Carminati E, Giardina F, Doglioni C (2002) Rheological control of subcrustal seismicity in the Apennines subduction (Italy). Geophys Res Lett 29. doi:10.1029/2001GL014084
Casero P, Roure F (1994) Neogene deformation at the sicilian-north african plate boundary. In: Roure F (ed) Peri-Tethyan platforms. Editions Technip, Paris, pp 27–50
Catalano R, Infuso S, Sulli A (1995) Tectonic history of the submerged Maghrebian Chain from the Southern Tyrrhenian Sea to the Pelagian Foreland. Terra Nova 7:179–188
Catalano R, Di Stefano P, Sulli A, Vitale FP (1996) Paleogeography and structure of the central Mediterranean: Sicily and its offshore area. Tectonophysics 260:291–323
Catalano R, Franchino A, Merlini S, Sulli A (2000) A crustal section from the eastern Algerian basin to the Ionian ocean (Central Mediterranean). Mem Soc Geol It 55:71–85
Chiarabba C, De Gori P, Speranza F (2008) The Southern Tyrrhenian subduction zone: deep geometry, magmatism and Plio-Pleistocene evolution. Earth Planet Sci Lett 268:408–423
Chimera G, Aoudia A, Saraò A, Panza GF (2003) Active tectonics in central Italy: constraints from surface wave tomography and source moment tensor inversion. Phys Earth Planet Int 138:241–262
Corti G, Cuffaro M, Doglioni C, Innocenti F, Manetti P (2006) Coexisting geodynamic processes in the Sicily Channel. In: Dilek Y, Pavlides S (eds) Post-collisional tectonics and magmatism in the eastern mediterranean region, vol 409. Geol Soc Am Sp Paper, pp 83–95
Cuffaro M, Riguzzi F, Scrocca D, Antonioli F, Carminati E, Livani M, Doglioni C (2010) On the geodynamics of the northern Adriatic plate. Rend Fis Acc Lincei 21(Suppl 1):S253–S279. doi:10.1007/s12210-010-0098-9
Déverchère J, Yelles K, Domzig A, Mercier de Lépinay B, Bouillin J, Gaullier V, Bracene R, Calais E, Savoye B, Kherroubi A, Roy PL, Pauc H, Dan G (2005) Active thrust faulting offshore Boumerdes, Algeria, and its relations to the 2003 Mw 6.9 earthquake. Geophys Res Lett 32. doi:10.1029/2004GL021646
Devoti R, Riguzzi F, Cuffaro M, Doglioni C (2008) New GPS constraints on the kinematics of the Apennines subduction. Earth Planet Sci Lett 273:163–174
Doglioni C, Innocenti F, Mariotti G (2001) Why mt etna? Terra Nova 13:25–31
Doglioni C, Carminati E, Cuffaro M, Scrocca D (2007) Subduction kinematics and dynamic constraints. Earth Sci Rev 83:125–175
Domzig A (2006) Déformation active et récente, et structuration tectonoésédimentaire de la marge sous-marine algérienne. PhD Dissertation, Brest (UBO) University, Institut Universitaire Européen de la Mer, Brittany, France, 333 pp
Giunta G, Nigro F, Renda P, Giorgianni A (2000) The Sicilian-Magrebides Tyrrhenian Margin: a neotectonic evolutionary model. Boll Soc Geol It 119:553–565
Goes S, Giardini D, Jenny S, Hollenstein C, Kahle HG, Geiger A (2005) A recent tectonic reorganization in the south-central Mediterranean. Earth Planet Sci Lett 226:335–345
Gutscher MA, Roger J, Baptista MA, Miranda JM, Tinti S (2006) Source of the 1693 catania earthquake and tsunami (southern Italy): new evidence from tsunami modeling of a locked subduction fault plane. Geophys Res Lett 33. doi:10.1029/2005GL025442
Gvirtzman Z, Nur A (1999) The formation of Mount Etna as the consequence of slab rollback. Nature 401:782–785
Jenny S, Goes S, Giardini D, Kahle HG (2006) Seismic potential of southern Italy. Tectonophysics 415:81–101
Mele G (1998) High-frequency wave propagation from mantle earthquakes in the Tyrrhenian Sea: new constraints for the geometry of the South Tyrrhenian Subduction Zone. Geophys Res Lett 25:2877–2880
Monaco C, Bianca M, Catalano S, De Guidi G, Tortorici L (2002) Sudden change in the Late Quaternary tectonic regime in eastern Sicily: evidences from geological and geomorphological features. Boll Soc Geol It 1:901–913
Panza GF, Peccerillo A, Aoudia A, Farina B (2007) Geophysical and petrological modelling of the structure and composition of the crust and upper mantle in complex geodynamic settings: the Tyrrhenian Sea and surroundings. Earth Sci Rev 80:1–46
Pepe F, Bertotti G, Cella F, Marsella E (2000) Rifted margin formation in the south Tyrrhenian Sea: a high-resolution seismic profile across the north Sicily passive continental margin. Tectonics 19:241–257
Pepe F, Sulli A, Bertotti G, Catalano R (2005) Structural highs formation and their relationship to sedimentary basins in the north Sicily continental margin (southern Tyrrhenian Sea): implication for the Drepano Thrust Front. Tectonophysics 409:1–18
Pietrantonio G, Riguzzi F (2004) Three-dimensional strain tensor estimation by GPS: observations: methodological aspects and geophysical applications. J Geodyn 38:1–18
Piromallo C, Morelli AD (2003) P-wave tomography of the mantle under the Alpine-Mediterranean area. J Geophys Res 108. doi:10.1029/2002JB001757
Pondrelli S, Salimbeni S, Ekstrom G, Morelli A, Gasperini P, Vannucci G (2006) The Italian CMT dataset from 1977 to the present. Phys Earth Planet Int 159:286–303
Roure F, Howell DG, Muller C, Moretti I (1990) Late Cenozoic subduction complex of Sicily. J Struct Geol 12:259–266
Scrocca D, Doglioni C, Recanati R, Chiarabba C, Guerrini M, Ferrante V, Anastasio M (2006) Caratterizzazione delle principali strutture sismogenetiche nell’offshore della Sicilia settentrionale, abstracts GNGTS, Roma, 28–30 November
Serpelloni E, Vannucci G, Pondrelli S, Argnani A, Casula G, Anzidei M, Baldi P, Gasperini P (2007) Kinematics of the western Africa-Eurasia plate boundary from focal mechanisms and GPS data. Geophys J Int 169:1180–1200
Shen ZK, Jackson DD, Ge BX (1996) Crustal deformation across and beyond the Los Angeles basin from geodetic measurements. J Geophys Res 101:27957–27980
Visini F, De Nardis R, Lavecchia G (2009) Rates of active compressional deformation in central Italy and Sicily: evaluation of the seismic budget. Int J Earth Sci 98. doi:10.1007/s00531-009-0473-x
Walter TR, Wang R, Acocella V, Neri M, Grosser H, Zschau J (2009) Simultaneous magma and gas eruptions at three volcanoes in southern Italy: an earthquake trigger? Geology 37:251–254
Wessel P, Smith WHF (1995) New version of generic mapping tools (GMT) version 3.0 released. Eos Trans AGU 76:329
Yelles A, Domzig A, Déverchère J, Bracéne R, Mercier de Lépinay B, Strzerzynski P, Bertrand G, Boudiaf A, Winter T, Kherroubi A, Le Roy P, Djellit H (2009) Plio-quaternary reactivation of the Neogene margin off NW Algiers, Algeria: the Khayr al Din bank. Tectonophysics 475:98–116
Acknowledgments
Discussions with Marco Ligi, Roberto Devoti and Grazia Pietrantonio were very fruitful. The article strongly benefited from the reviews by Francois Roure, Donna M. Jurdy and an anonymous reviewer. Single-channel “Sparker” profiles were made available by Nevio Zitellini (ISMAR-CNR). Valentina Ferrante is thanked for reprocessing the CROP M6A multichannel seismic profile. Riccardo Recanati and Marinella Anastasio provided support with the interpretation of the seismic profiles. Marco Guerrini gave useful help with the September 2002 relocated afterschocks. Ilaria Paradisi is warmly thanked for her suggestions on figure optimization. Many of the figures were made with the Generic Mapping Tools of Wessel and Smith (1995). Research carried out with the contribution of the Italian Istituto Nazionale di Geofisica e Vulcanologia (INGV) and Dipartimento per la Protezione Civile.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Cuffaro, M., Riguzzi, F., Scrocca, D. et al. Coexisting tectonic settings: the example of the southern Tyrrhenian Sea. Int J Earth Sci (Geol Rundsch) 100, 1915–1924 (2011). https://doi.org/10.1007/s00531-010-0625-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00531-010-0625-z