Division of crustal units in China using grid-based clustering and a zircon U–Pb geochronology database

Xianjun Fang, Yujing Wu, Sisi Liao, Lizhi Xue, Zhe Chen, Jiangnan Yang, Yamin Lu, Kun Ling, Shengyi Hu, Shuyuan Kong, Yiwei Xiong, Huacheng Li, Xiuqi Shang, Rui Ji, Xueyun Lu, Biao Song, Lei Zhang, Jianqing Ji