Les granitoides hercyniens corso-sardes; mise en evidence de deux associations magmatiques

The mineralogy and geochemistry of uranium, thorium, and rare-earth elements in two radioactive granites of the Vosges, France

“…The subalkaline granitoid association, first described from Corsica by Orsini (1976), is characterized by high U, Th, LREE and Ba, Rb, and Sr contents comparable with those of the shoshonite association (Morrison, 1980). The granites are formed by anatexis of the deep crust as a result of steep geothermal gradients caused by influx of basaltic melts.…”

Detrital zircon age patterns from turbidites of the Balagne and Piedmont nappes of Alpine Corsica (France): Evidence for an European margin source

“…The blueschist or eclogite facies rocks are partly retrogressed into greenschist facies conditions. This highly ductilely deformed "Schistes Lustrés" Nappe with ophiolites, and continental crust slices was thrust Westward onto the European Variscan continental basement during the Late Eocene (Bartonian, 40-37 Ma; Mattauer and Proust, 1975, 1976, Faure and Malavieille, 1981Malavieille et al, 2011;Vitale-Brovarone et al, 2013).…”

Evolution of the Corsica–Sardinia Batholith and late-orogenic shearing of the Variscides

“…Almost all plutons in the Borborema Province have a ribbon like shape with a mean aspect ratio of about 5, are internally homogeneous and range in composition from S-type leuco-granite to granodiorite, with the more mafic rocks such as gabbro and tonalite being less abundant. This paper focuses on the evolution of the Corsica-Sardinia Batholith (C-SB), a large batholith developed along a network of late-Variscan (Carboniferous-Permian) crustal shear zones bridging the northern Gondwana margin to central Europe (340-280 Ma; (Cocherie et al, 2005;Gaggero et al, 2007;Orsini, 1976;Paquette et al, 2003;Rossi and Cocherie, 1991)). The combination of excellent geological exposure, the absence of post-Variscan ductile deformation, and the existence of detailed geochemical, geochronological, and structural datasets make the C-SB an ideal candidate for testing models of pluton emplacement and crustal reworking.…”