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计算了变质成因和岩浆成因锆石从晶体核部至边缘的平均离子半径，发现它们的变化存在规律性，作者认为这种规律性同锆石结晶时岩浆或母岩的温压条件变化密切相关，论述了用锆石平均阳离子半径变化趋势来判别其结晶PT条件变化趋势的方法及可能性。
The average ion radius of metamorphic and magmatic zircons from the nucleus to the edge of the magma was calculated and found to be regular. The author believes that this regularity is closely related to the change of temperature and pressure conditions of the magma or parent rock during zircon crystallization , Discusses the method and the possibility of judging the changing trend of the crystallization PT of zircon by the change tendency of average cation radius of zircon.