Journal of Palaeogeography     2017 6 (4):  370-380    ISSN: 2095-3836  CN: 10-1041/P Weathering geochemistry and palaeoclimate implication of the Early Permian mudstones from eastern Henan Province, North China Jiang-Hai Yang, Yuan-Sheng Du State Key Laboratory of Biogeology, Environmental Geology, China University of Geosciences, Wuhan430074, China Received: null  Revised: null  Online: null Supporting info null