supported by the Knowedge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-140);The National Natural Science Foundation of China (40872041);the President Foundation of Chinese Academy of Sciences (2007)
The well-preserved 1.8-km-diameter Xiuyan crater is located in the low mountain-hill region of the northern part of Liaodong Peninsula of northern China. Recently, a 307-m-deep borehole at the centre of crater became ...