Transfer zones and associated volcanic province in the eastern Valencia Basin: Evidence for a hot rifted margin?

Maillard, Agnès; Jolivet, Laurent; Lofi, Johanna; Thinon, Isabelle; Couëffé, Renaud; Canva, Albane; Dofal, Anthony

doi:10.1016/j.marpetgeo.2020.104419

Cited by 19 publications

(17 citation statements)

References 93 publications

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“…This Rupelian change in stress orientation reflects a change at plate boundaries, which we relate to the onset of subduction roll-back and back-arc rifting above the Apennine subduction (Réhault et al, 1984;Séranne, 1999;Jolivet and Faccenna, 2000;Jolivet et al, 2015;Romagny et al, 2020). Southeasttrending transfer faults zones are a distinctive feature of the rifting of the Gulf of Lion (Gorini et al, 1993;Guennoc et al, 2000;Mauffret et al, 2001;Canva et al, 2020;Maillard et al, 2020). However, there is no evidence of active SE-oriented structure in the onshore study area, until the Oligocene rifting episode (Maerten and Séranne, 1995;Sanchis and Séranne, 2000).…”

Section: Regional Synthesis and Discussionmentioning

confidence: 99%

The transition from Pyrenean shortening to Gulf of Lion rifting in Languedoc (South France) – A tectonic-sedimentation analysis

Séranne¹,

Couëffé²,

Husson³

et al. 2021

BSGF - Earth Sci. Bull.

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The Pyrenean orogen extended eastward, across the present-day Gulf of Lion margin. The late or post-orogenic dismantling of this orogen segment, contemporaneous with ongoing shortening in the Spanish Pyrénées, is still debated. Understanding the transition between the two geodynamic events requires to document the precise timing of the succession of the tectonic processes involved. We investigate the superposition of rifting structures over Pyrenean thrusts and folds in the onshore Languedoc. Compilation and reassessment of the regional chronostratigraphy, in the light of recent biostratigraphic dating and new mapping of Paleogene basins, lead to date the transition to the Priabonian. Tectonic-sedimentation relationship in the Eocene to Oligocene depocentres are analysed in surface exposures as well as in seismic reflection surveys. Bed-to bed mapping allowed us to: i) characterise an intermediate sequence of Priabonian age, bounded at the base and the top by unconformities; ii) evidence syn-depositional deformation within the Priabonian; iii) define the axes of Priabonian deformation. Interpretation of seismic reflection profiles, across the onshore basins covered by syn- and post-rift sequences, reveals the existence of an intermediate sequence displaying similar features, and that is correlated to the Priabonian. Syn-depositional deformation of some Priabonian basins correspond to extensional structure, whereas neighbouring, contemporaneous basins, reveal compressional deformation. The distribution of such apparently conflicting observations across the studied area provides evidence for left-lateral strike-slip deformation between two major regional faults (Cévennes and Nîmes faults). Left-lateral strike-slip along NE-trending faults accommodates E-W extension of the West European Rift (ECRIS) and part of the ongoing N-S shortening in the Central and Western Pyrénées. Priabonian clastic sedimentation and deformation in Languedoc witness the initial stages of the dismantling of the Languedoc-Provence Pyrénées, prior to Oligocene-Aquitanian back-arc rifting.

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Section: Regional Synthesis and Discussionmentioning

confidence: 99%

The transition from Pyrenean shortening to Gulf of Lion rifting in Languedoc (South France) – A tectonic-sedimentation analysis

Séranne¹,

Couëffé²,

Husson³

et al. 2021

BSGF - Earth Sci. Bull.

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“…East of the Balearic Promontary, the North-Balearic-Fracture-Zone (see Maillard et al, 2020 and references therein) forms a transfer zone that accommodated the differential extension between the Valencia basin and the counterclockwise rotation of Sardinia-Corsica and extension in the Liguro-Provençal oceanic basin. The first calc-alkaline magmatic event is dated as late Oligocene-lower Miocene in the Valencia basin (24 Ma; Marti et al, 1992; Fig.…”

Section: Iberian Range and Central Systemmentioning

confidence: 99%

Evolution of the Alpine orogenic belts in the Western Mediterranean region as resolved by the kinematics of the Europe-Africa diffuse plate boundary

Angrand¹,

Mouthereau²

2021

BSGF - Earth Sci. Bull.

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The West European collisional Alpine belts are the result of the inversion, initiated in the middle Cretaceous, of the complex western Neotethys and the Atlantic continental rift domains and closure of remnants of Tethys between North Africa and European cratons. While the kinematics of Africa relative to Europe is well understood, the kinematics of microplates such as Iberia and Adria, within the diffuse collisional plate boundary, are still a matter of debate. We review geological and stratigraphic constraints in the peri-Iberia fold-thrust belts and basins to define the deformation history and crustal segmentation of the West European realm. These data are then implemented with other constraints from recently published kinematic and paleogeographic reconstructions to propose a new regional tectonic and kinematic model of the Western Europe from the late Permian to recent times. Our model shows that the pre-collisional extension between Europe and Africa plates was distributed and oblique, hence building discontinuous rift segments between the southern Alpine Tethys and the Central Atlantic. They were characterised by variably extended crust and narrow oceanic domains segmented across transfer structures and micro-continental blocks. The main tectonic structures that are inherited from the late Variscan orogeny localized both rifting and orogenic belts. We show that several continental blocks, including the Ebro-Sardinia-Corsica block, have been key in accommodating strike-slip, extension, and contraction in both Iberia and Adria. Its existence further allows refining the tectonic relationship between Iberia, Europe and Adria in the Alps. By the Paleogene, the convergence of Africa closed the spatially distributed oceanic domains, except for the Ionian basin. From this time onwards, collision spread over the different continental blocks, allowing an efficient transfer of the deformation from Africa to Europe. The area was eventually affected by the West European Rift, in the late Eocene, which may have influenced the opening of the West Mediterranean. The low convergence associated with collisional evolution of Western Europe permits to resolve the control of the inherited crustal architecture on the distribution of strain in collision zone, that is otherwise lost in more mature collision domain such as the Himalaya.

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“…We positioned our Liguro-Provençal model in the south of the basin between the North Balearic and Catalan transverse fracture zones, an area also referred to in the literature as the North Balearic Basin (Figure 1; black box) where undeformed to mildly deformed sediment on seismic data (e.g. seismic profile SPBal-15 & SPBal-27) progressively deepens from the North Balearic fracture zone towards the Gulf of Lion (Maillard et al, 2003(Maillard et al, , 2020. In comparison, the Gulf of Lion slope between the Catalan and Arlesian transverse fracture zones (Figure 1) tilts towards the southeast with listric faults in the upslope, salt anticlines and translation in the mid-slope and contraction and diapirs in the downslope area (Maillard et al, 2003).…”

Section: Modelling Strategy and Scenariosmentioning

confidence: 99%

The Messinian Salinity Crisis as a trigger for high pore pressure development in the Western Mediterranean

et al. 2021

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Transfer zones and associated volcanic province in the eastern Valencia Basin: Evidence for a hot rifted margin?

Cited by 19 publications

References 93 publications

The transition from Pyrenean shortening to Gulf of Lion rifting in Languedoc (South France) – A tectonic-sedimentation analysis

The transition from Pyrenean shortening to Gulf of Lion rifting in Languedoc (South France) – A tectonic-sedimentation analysis

Evolution of the Alpine orogenic belts in the Western Mediterranean region as resolved by the kinematics of the Europe-Africa diffuse plate boundary

The Messinian Salinity Crisis as a trigger for high pore pressure development in the Western Mediterranean

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