The ophiolite-bearing Schistes lustrés nappe in Alpine Corsica: A model for the emplacement of ophiolites that have suffered HP/LT metamorphism

Deformation history of the ophiolite sequence from the Balagne Nappe, northern Corsica: insights in the tectonic evolution of Alpine Corsica

“…Before the Late Eocene and, probably, from the 'mid'-Cretaceous onwards, the Ligure-Piemontese Basin was characterized by an east-dipping, i.e. alpine, subduction zone where the oceanic lithosphere and the Europe/Corsica continental margin crust were progressively involved Proust 1975, 1976;Mattauer et al 1977;Faure and Malavieille 1981;Harris 1985;Warburton 1986;Malavieille et al 1998).…”

“…Also, the continental crust was largely involved in the subduction, as testified by the strict association of the ophiolites with gneiss slices (Serra di Pigno and Farinole gneiss units) that are affected by Tertiary HP/LT metamorphism (Brunet et al 2000). Deformation features and kinematic indicators recognized in the Schistes lustrés complex provide evidence for a foreland-vergent, westward thrusting connected with an east-dipping subduction zone Proust 1975, 1976;Mattauer et al 1977;Faure and Malavieille 1981;Malavieille 1983;Harris 1985;Warburton 1986;Fournier et al 1991;Jolivet et al 1991;Malavieille et al 1998). The Schistes lustrés complex was also affected in 45 to 25 Ma time by retrograde metamorphism under decreasing pressure (Maluski 1977;Brunet et al 2000).…”

Tectono-metamorphic history of the ophiolitic Lento unit (northern Corsica): evidences for the complexity of accretion-exhumation processes in a fossil subduction system

“…The processes related to the intraoceanic subduction and the subsequent continental collision are well recorded by the dominant deformation and the associated metamorphism observed in the oceanic and continental units belonging to the Schistes Lustrés complex [11,3,4,5,6,7,8,12,13,10]. In this complex, the ophiolite sequences are generally characterized by Late Cretaceous deformations associated to HP/LT metamorphism [14,15] ranging from low-grade to blueschist and eclogite facies [14,16,17,18].…”

“…While several papers devoted to the structural history of the eclogite-facies metamorphic units from the Schistes Lustrés are available [11,3,4,5,6,7,8,12,13,10], no reconstruction of deformation history has still now proposed for the Lento unit. Padoa [39] provided a reconstruction of the structural history of the Inzecca unit, that is generally correlated with the Lento unit by the similar lithostratigraphy and the same metamorphic grade.…”

“…1,2,3,4,5,6,7,8,9,10]. The oceanic units are considered remnants of the Ligure-Piemontese domain, i.e.…”