the National 973 Project of Chinese Ministry of Science and Technology (Grant No. 2003CB716502); the Natural Science Foundation of China (Grant No. 40399143) ; the German Science Foundation (DFG; grant No. GE 1152/2-2 , WE2850/3- 1).
Eclogite lenses in marbles from the Dabie-Sulu ultrahigh-pressure (UHP) terrane are deeply subducted meta-sedimentary rocks. Zircons in these rocks have been used to constrain the ages of prograde and UHP metamorphi...