摘要
By means of multi-dimensional regression analysis the author proposes for the first time the concept of “isochron plane” and develops two methods for solving three-stage U-Pb equations. Evolution of Nanling granites, metamorphic rocks fromthe Liaotung Peninsula and lunar basalts from Ocean Procellarum has been discussed in the light of U-Pb three.stage model calculations. The U-Pb third-stage modcl ages for these rocks are consistent with their K-Ar or Rb-Sr ages as well as with geological field observations.
By means of multi-dimensional regression analysis the author proposes for thefirst time the concept of 'isochron plane' and develops two methods for solvingthree-stage U-Pb equations. Evolution of Nanling granites, metamorphic rocks fromthe Liaotung Peninsula and lunar basalts from Ocean Procellarum has been dis-cussed in the light of U-Pb three-stage model calculations. The U-Pb third-stagemodel ages for these rocks are consistent with their K-Ar or Rb-Sr ages as well aswith geological field observations.
出处
《地球化学》
CAS
1975年第2期123-134,共12页
Geochimica
