Affiliation: | WANG Er-Kang WAN Yu-Qiu, SHI Yang-Shen(Department of Earth Sciences, Nanjing University, Nanjing 210008, PRC)V. L. Sharpton(Lunar and planetary Institute, Houston, Texas 77058, USA)and K. Burke(Department of Geosciences, University of Houston, Houston, Texas 77204, USA) |