isochrone

常见例句

Studies of isochron luminescence dating with sand-sized grains.
粗顆粒的等時線釋光方法研究。
The same samples were also dated by mineral Rb-Sr isochron method.
結果表明，花崗巖和片麻巖鑛物的氧同位素溫度大小順序爲：角閃石>磁鉄鑛>榍石>石英>黑雲母>長石，遵循緩慢冷卻條件下擴散控制的氧同位素交換封閉順序，指示這些巖石沒有受到後期熱液蝕變的擾動。
It concludes with a discussion on the scientific validity of isochron dating.
這裡包括許多等時線測年的科學有傚性討論。
Its age determined by Rb-Sr isochron is 306 Ma, suggesting that it was formed at Hercynian.
據Rb-Sr等時線測定,其年令值爲306Ma,說明它形成於海西期。
The isochron of whole rock Rb-Sr of intrusive during Caledonian in xiao Qinling mountain is 503 Ma.
小秦嶺加裡東期侵入巖的全巖Rb－Sr等時線年齡值爲503Ma。
Through K-Ar isotope age study in pillow basalt,has gained the isochrone age is 139Ma.The age is the formation age of pillow basalt.
在枕狀玄武巖中獲得K-Ar（全巖）同位素年齡爲139Ma（測試單位：宜昌地質鑛産所同位素室），因此確定其時代爲晚侏羅世晚期。