鑀–镭地质年代学
ionium-radium geochronology
标准世界地质年代表
standard global geochronologic scale
地质年〔代〕表
geologic (geological) time scale
地质年代测定
geological age determination
地质年代间隔
geochronological interval
地质年代学
Geochelone nigrita
geochronology
geologic chronology
Geochronoiogy
geochrony
geological chronology
Reservoir organic petrology