KDE plots of U–Pb dates (²⁰⁶Pb/²³⁸U for dates younger than 1200 Ma; ²⁰⁶Pb/²⁰⁷Pb for dates older than 1200 Ma), comparing zircon and monazite data from this study with published data from the eastern French Massif Central (FMC). (A) Monazite ²⁰⁶Pb/²³⁸U dates’ distribution for paragneiss and diatexite (this study). (B) Monazite and zircon ²⁰⁶Pb/²³⁸U dates for LGU paragneiss (this study) and zircon dates for LGU and UGU (from Chelle-Michou et al., 2017; Couzinié et al., 2019). (C–D) Distribution of zircon dates of metasedimentary rocks from this study and from LGU, UGU and orthogneiss in the eastern FMC (compiled from Chelle-Michou et al., 2017; Couzinié et al., 2017, 2019; Do Couto et al., 2016).