InstituteofEarthEnvironment;
ChineseAcademyofSciences;
Xi'an710054;
P.R.China;
EmperorQin'sTerra-CottaWardersandHorsesMuseum;
Xi'an710054;
P.R.China;
TheHongKongPolytechnicUniversity;
HongKong;
P.R.China;
DesertResearchInstiute;
Reno;
NV;
USA;
InstituteofEarthEnvironment;
ChineseAcademyofSciences;
Xi'an710054;
P.R.China;