Paleomagnetic study of Sicily: consequences for the deformation of Italian and African margins over the last 100 million years

Besse, J.; Pozzi, Jean-Pierre; Mascle, Georges; Feinberg, H.

doi:10.1016/0012-821x(84)90176-6

Cited by 43 publications

(12 citation statements)

References 31 publications

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“…Palaeomagnetic studies of Neogene strata confirm that Apulia has not rotated with respect to Hyblea, consistent with these platforms having developed on, and forming part of a coherent Adria lithospheric block (Besse et al 1984;Eldredge et al 1985;Scheepers 1992). Interpretations involving the presence of a strait floored by Ionian oceanic lithosphere separating Apulia and Hyblea require that subduction of the oceanic lithosphere underlying the strait occurred without resulting in rotation or translation of Apulia relative to Hyblea (Rosenbaum et al 2002) and are inconsistent with Apulia-Hyblea moving coherently with and forming a coherent continuation of the African continent.…”

Section: The Apulian -Hyblean Forelandmentioning

confidence: 68%

The Calabrian Orocline: buckling of a previously more linear orogen

Johnston

Mazzoli

2009

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Recent structural studies of the Apennines and the Calabrian orocline and a compilation of structural, stratigraphic, GPS and palaeomagnetic data from the central and western Mediterranean region show that beginning in the Late Miocene a N-S trending ribbon continent that had been previously deformed, and which we now recognize as the Apennine-Sicilian thrust belt, buckled eastward in response to northward movement of Africa relative to stable Europe. A simple geometric model is consistent with available data and shows how eastward buckling of an originally north-south continental beam explains: (1) opening of the Tyrrhenian Sea basin from 7 -2 Ma, at which point sea-floor spreading ceases and the basin begins to shrink by southward subduction beneath Sicily; (2) the coeval development of an east-verging fold-andthrust belt along the length of the Apennine-Sicilian belt in response to overthrusting of the autochthon to the east, followed by extension beginning at 1 Ma as the Apennine portion of the beam begins to retreat to the SW; and (3) subduction of continental and oceanic lithosphere east of the buckling beam into a trench that migrates eastward through time due to 'push back' by the buckling upper plate.

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Section: The Apulian -Hyblean Forelandmentioning

confidence: 68%

The Calabrian Orocline: buckling of a previously more linear orogen

Johnston

Mazzoli

2009

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“… a References are 1, Marton and Nardi [1994]; 2, Scheepers [1992]; 3, Gattaceca and Speranza [2002]; 4, Jackson [1990]; 5, Catalano et al [1976]; 6, Manzoni [1975]; 7, Scheepers and Langereis [1994]; 8, Scheepers et al [1993]; 9, Sagnotti [1992]; 10, Mattei et al [2004b]; 11, Mattei et al [2002]; 12, Speranza et al [2000]; 13, Scheepers [1994]; 14, Scheepers et al [1994]; 15, Aifa et al [1988]; 16, Cifelli et al [2004]; 17, Tauxe et al [1983]; 18, Channell et al [1990]; 19, Schult [1976]; 20, Channell et al [1980]; 21, Speranza et al [2003]; 22, Nairn et al [1985]; 23, Speranza et al [1999]; 24, Butler et al [1999]; 25, Scheepers and Langereis [1993]; 26, Besse et al [1984]; 27, Duermejier et al [1998]; 28, Channell et al [1992]; 29, Gregor et al [1975]; 30, Barberi et al [1974]. Da, Ia are locality (site) declinations and inclinations values after tectonic correction; α 95 is statistic parameter after Fisher [1953].…”

Section: A Critical Review Of Paleomagnetic Data From Southern Italymentioning

confidence: 99%

Tectonic evolution of arcuate mountain belts on top of a retreating subduction slab: The example of the Calabrian Arc

2007

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[1] In this paper, new paleomagnetic results from the Calabrian Arc are presented, together with a critical review of all paleomagnetic data collected in the last decades in southern Italy. Our study is focused on the upper Miocene to middle Pleistocene deposits of the Crati extensional basin, a sector of the arc where an abrupt change in the sense of paleomagnetic rotations is observed. Paleomagnetic data indicate that the Crati basin underwent a uniform clockwise (CW) rotation of about 15°-20°in its central and southern part, whereas the northern sector is organized in small-scale fault-bounded blocks, which rotated independently. We interpret this pattern of deformation as the evidence of the complex nature of this area, which represents the boundary between two domains characterized by opposite rotations: the southern Apennines, which rotated counterclockwise, and the Calabria and Sicily, which rotated CW. Integrating these new paleomagnetic data with paleomagnetic data from southern Italy, we reconstruct the history of paleomagnetic rotations through time. Paleomagnetic rotations highlight the peculiarity of the formation of the Calabrian Arc curvature and imply that either an oroclinal bending model or a progressive arc model cannot be simply applied to the Calabrian Arc formation. We describe a realistic tectonic-geodynamic model, where the progressive curvature of the Calabrian Arc is framed within the space-time evolution of the Ionian subduction system.

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“…The paleomagnetic data available for the Southern Apennines, Calabria, and Sicily are reported in Figure 1 (among others, Aifa et al [1988], Besse et al [1984], Butler et al [1999], Channell et al [1980, 1990], Cifelli et al [2004, 2007a, 2007b], Duermeijer et al [1998], Gattacceca and Speranza [2002], Mattei et al [2002, 2004], Sagnotti [1992], Scheepers and Langereis [1993, 1994], Scheepers et al [1993, 1994], and Speranza et al [1999, 2003]). These data come from about 500 sites collected either for paleomagnetic or magnetostratigraphic investigations from Middle Jurassic to Pleistocene strata (see Cifelli et al [2007b] for further details on paleomagnetic database).…”

Section: Paleomagnetic Databasementioning

confidence: 99%

Calabrian Arc oroclinal bending: The role of subduction

2008

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[1] Paleomagnetic data collected in the last 30 years indicate that a simple orocline model is not sufficient to describe the complex evolution of the Calabrian Arc. Present-day curvature of the Calabrian Arc is the result of a different tectonic history between the edges of the arc, namely the Southern Apennines and Sicily, and its core, the Calabria-Peloritani Domain. These differences mirror the structural architecture and deep lithospheric configuration of the Calabrian Arc, which are related to the geometry and evolution of the Ionian subduction system. In particular, the presence of lateral heterogeneities in the subducting lithosphere and the subsequent progressive decrease in width of the trench during subduction are likely the main causes of Calabrian Arc formation and of its present-day narrow tight shape.

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Paleomagnetic study of Sicily: consequences for the deformation of Italian and African margins over the last 100 million years

Cited by 43 publications

References 31 publications

The Calabrian Orocline: buckling of a previously more linear orogen

The Calabrian Orocline: buckling of a previously more linear orogen

Tectonic evolution of arcuate mountain belts on top of a retreating subduction slab: The example of the Calabrian Arc

Calabrian Arc oroclinal bending: The role of subduction

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