Global Geology     2018 21 (1):  14-25    ISSN: 1673-9736:  CN: 22-1371/P Geochronology and geochemistry of Baicaogou tuff in Yanji, NE China and its tectonic implications for Early Cretaceous WANG Yingchao, SUN Fengyue, LI Liang, XIN Wei, YAN Jiaming, TIAN Lidan College of Earth Sciences, Jilin University, Changchun 130061, China Received null  Revised null  Online 2018-03-25 Reference  null Corresponding author: SUN Fengyue