Betic-Rifian and Tyrrhenian Arcs : Distinctive Features, Genesis and Development Stages

Bouillin, Jean-Pierre; Durand-Delga, Michel; Olivier, Ph.

doi:10.1016/b978-0-444-42688-8.50017-5

Cited by 182 publications

(109 citation statements)

References 9 publications

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“…In fact, according to ODP Leg 107 results, major stretching in the Tyrrhenian Sea only occurs since upper Tortonian times (ODP Site 654, see above). Moreover, similarly to Apennines-Calabria-Sicily, compressional tectonism of about Tortonian age is recorded around the Western Mediterranean also in Tunisia (Bouillin et al, 1986), in the Ligurian Sea (Fanucci, 1986), and in the Balearic Islands (Bourrouilh, 1973;Pomar et al, 1983;Curzi et al, 1986).…”

Section: Outline Of the Perityrrhenian Neogene Chains In Relation To mentioning

confidence: 99%

The Main Results of ODP Leg 107 in the Frame of Neogene to Recent Geology of Perityrrhenian Areas

Sartori¹

1990

Proceedings of the Ocean Drilling Program

104

115

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Section: Outline Of the Perityrrhenian Neogene Chains In Relation To mentioning

confidence: 99%

The Main Results of ODP Leg 107 in the Frame of Neogene to Recent Geology of Perityrrhenian Areas

Sartori¹

1990

Proceedings of the Ocean Drilling Program

104

115

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“…Subsequently to the Eo-Alpine reestructuration of the Mesomediterranean Terrane, mainly affecting its northern margin, took place, during the late Oligocene and earliest Miocene, the dislaceration of this microplate into the different blocks collectively known, according to Bouillin et al [88], as AlKaPeCa (Alboran, Kabylian, Peloritan and Calabrian). These blocks were displaced toward the south to attain their respective present locations due to subduction toward the NW and roll-back under them of different oceanic plates, genetically related with the development of the new Mediterranean oceanic basins (Handy et al [59]; Chalouan and Michard [89]; Lonergan and White [90], Rosebaum et al [91]; Lustrino et al [92]).…”

Section: Neogene Geodynamic Evolution Of the Mesomediterranean Terranementioning

confidence: 99%

The Betic Ophiolites and the Mesozoic Evolution of the Western Tethys

et al. 2017

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Abstract:The Betic Ophiolites consist of numerous tectonic slices, metric to kilometric in size, of eclogitized mafic and ultramafic rocks associated to oceanic metasediments, deriving from the Betic oceanic domain. The outcrop of these ophiolites is aligned along 250 km in the Mulhacén Complex of the Nevado-Filábride Domain, located at the center-eastern zone of the Betic Cordillera (SE Spain). According to petrological/geochemical inferences and SHRIMP (Sensitive High Resolution Ion Micro-Probe) dating of igneous zircons, the Betic oceanic lithosphere originated along an ultra-slow mid-ocean ridge, after rifting, thinning and breakup of the preexisting continental crust. The Betic oceanic sector, located at the westernmost end of the Tethys Ocean, developed from the Lower to Middle Jurassic (185-170 Ma), just at the beginning of the Pangaea break-up between the Iberia-European and the Africa-Adrian plates. Subsequently, the oceanic spreading migrated northeastward to form the Ligurian and Alpine Tethys oceans, from 165 to 140 Ma. Breakup and oceanization isolated continental remnants, known as the Mesomediterranean Terrane, which were deformed and affected by the Upper Cretaceous-Paleocene Eo-Alpine high-pressure metamorphic event, due to the intra-oceanic subduction of the Jurassic oceanic lithosphere and the related continental margins. This process was followed by the partial exhumation of the subducted oceanic rocks onto their continental margins, forming the Betic and Alpine Ophiolites. Subsequently, along the Upper Oligocene and Miocene, the deformed and metamorphosed Mesomediterranean Terrane was dismembered into different continental blocks collectively known as AlKaPeCa microplate (Alboran, Kabylian, Peloritan and Calabrian). In particular, the Alboran block was displaced toward the SW to occupy its current setting between the Iberian and African plates, due to the Neogene opening of the Algero-Provençal Basin. During this translation, the different domains of the Alboran microplate, forming the Internal Zones of the Betic and Rifean Cordilleras, collided with the External Zones representing the Iberian and African margins and, together with them, underwent the later alpine deformation and metamorphism, characterized by local differences of P-T (Pressure-Temperature) conditions. These Neogene metamorphic processes, known as Meso-Alpine and Neo-Alpine events, developed in the Nevado-Filábride Domain under Ab-Ep amphibolite and greenschists facies conditions, respectively, causing retrogradation and intensive deformation of the Eo-Alpine eclogites.

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“…To the latter domain belong the Tunisian series analysed here, deposited on the North Africa Margin of western Tethys. Replaced in their broader geodynamic setting, we consider, as have other authors, that some elements of the Maghrebian inner zones were part of the Alkapeca micro-continent (Bouillin et al 1986), which also included present-day Calabrese and Peloritan overthrusts. The western part of this micro-continent consisted of the Alboran terrane.…”

Section: West-tethyan Geodynamic Contextmentioning

confidence: 99%

Integrated biostratigraphy and regional correlations of Upper Jurassic–lowermost Cretaceous series in northern Tunisia

Boughdiri

Sallouhi

Haddad

et al. 2009

GFF

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Integrated biostratigraphy and palaeogeographical interpretations of Upper Jurassic-Lower Cretaceous (Callovian-Berriasian) successions are synthesised on the basis of published data and our recent investigations of key sections from the "Tunisian Dorasale" (TD) and "Tunisian Trough" (TT) domains of northern Tunisia. After a revised biostratigraphy had been proposed for the "rosso ammonitico" series, bed-by-bed sampling led to a radiolarian-based first direct dating of the partly coeval biosiliceous series in the TT. Upward within the Jurassic column, an integrated biostratigraphy (ammonites, calpionellids and associated biomicrofacies) allowed precise biozonation for the Kimmeridgian-middle Berriasian interval. The heterogeneity of the Late Jurassic facies in northern Tunisia is the result of two main geodynamical and palaeogeographical events. The first corresponds to the fragmentation of the initial Early Jurassic platform linked to Tethyan rifting. The second event, coeval to the radiolarian-bearing series of the TT, is expressed by a significant deepening in north-west Tunisian palaeoenvironments. During Kimmeridgian -Tithonian times, previous troughs evolved back into carbonate platforms. Within the Maghrebian Belt, Upper Jurassic-lowermost Cretaceous series comprising three major facies groups are easily correlated; minor differences in age are interpreted as due to local tectonic control. Regional correlations confirm, on the one hand, a common geological history for the external segments of the African margin and, on the other hand, a distinct palaeogeographical evolution of the inner domain including the "Dorsales calcaires" and ancient massifs, both being separated by intermediate flysch zone segments.

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Betic-Rifian and Tyrrhenian Arcs : Distinctive Features, Genesis and Development Stages

Cited by 182 publications

References 9 publications

The Main Results of ODP Leg 107 in the Frame of Neogene to Recent Geology of Perityrrhenian Areas

The Main Results of ODP Leg 107 in the Frame of Neogene to Recent Geology of Perityrrhenian Areas

The Betic Ophiolites and the Mesozoic Evolution of the Western Tethys

Integrated biostratigraphy and regional correlations of Upper Jurassic–lowermost Cretaceous series in northern Tunisia

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