Formation of HREE-enriched ion-adsorption ore from LREE-rich granodiorite: a case study from the Meng Khun deposit, Laos - Mingjun Xie; Jian Zhou; Xueqiu Wang; Huohua Mo; Hanliang Liu; Jinfeng Bai; Xuemiao Du; Hui Wu (Mineralium Deposita, 2026)