Two episodes of Gzhelian (latest Carboniferous) volcanism immediately predate Asselian (early Permian) cooling and glaciation - Ye Wang; Jing Lu; Minfang Yang; Pam Vervoort; Kai Zhou; Joyce A. Yager; Sarah E. Greene; Ruoyu Sun; Yuchen Yang; Shifeng Dai; Longyi Shao; Jason Hilton (Global and Planetary Change, 2026)