Sm-Nd dating on three eclogite bodies from Tiqiushan, Xinyi in the northern Jiansu yield the following new age results: 212, 217and 222Ma, respectively. The isochron age of three eclogites and six minerals is 217(5Ma...
Ar-Ar total fusion and step heating methods have been used to determination the isotopic ages of the volcanic rocks from George King Island ,west Antarctica .Argon isotopes of the seven volcanic rock samples are measu...