“…Mantle exhumation appears to have been accompanied by HT‐LP metamorphism of prerift and synrift sedimentary strata in extensional basins associated with exhumed mantle domains, localized basement metasomatism, and late synrift alkaline magmatism dated between 110 and 90 Ma (e.g., Boutin et al, ; Clerc et al, ; Golberg et al, ; Hart et al, ; Montigny et al, ; Vacherat et al, ). The HT‐LP metamorphism of Mesozoic prerift and synrift strata occurred at 110–85 Ma, with the peak of HT‐LP metamorphism at ~95 Ma, with maximum temperatures of up to 550–650 °C (Albarède & Michard‐Vitrac, ; Bernus Maury, ; Boulvais, ; Clerc & Lagabrielle, ; Chelalou et al, ; Clerc, Lahfid, et al, , ; Corre et al, ; Golberg et al, ; Golberg & Leyreloup, ; Montigny et al, ; Vauchez, Clerc, et al, ).…”