Late Variscan metamorphic and magmatic evolution in the eastern Pyrenees revealed by U–Pb age zircon dating

摘要: Variscan migmatites cropping out in the eastern Pyrenees were dated together with Late plutonic rocks. Upper Proterozoic–Lower Cambrian series migmatized during a thermal episode that occurred interval 320–315 Ma coeval main deformation event (D 1 ). The calc-alkaline Sant Llorenc–La Jonquera pluton and gabbro–diorite Ceret stock emplaced later synchronous D 2 event. A tonalite located at base of La suite intruded into upper crustal levels between 314 311 Ma. was middle two magmatic pulses 312 307 evolution recorded can be correlated neighbouring areas NE Iberia (Pyrenees–Catalan Coastal Ranges) SE France (Montagne Noire). correlation suggests NW–SE-trending zonation where northeasternmost Noire Pyrenees) would occupy relatively more internal zones orogen than southwesternmost ones. Supplementary material: Methods U–Th–Pb isotopic REE geochemical data for zircon are available www.geolsoc.org.uk/SUP18703.