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Studies of isochron luminescence dating with sand-sized grains. 粗颗粒的等时线释光方法研究。
The same samples were also dated by mineral Rb-Sr isochron method. 结果表明,花岗岩和片麻岩矿物的氧同位素温度大小顺序为:角闪石>磁铁矿>榍石>石英>黑云母>长石,遵循缓慢冷却条件下扩散控制的氧同位素交换封闭顺序,指示这些岩石没有受到后期热液蚀变的扰动。
It concludes with a discussion on the scientific validity of isochron dating. 这里包括许多等时线测年的科学有效性讨论。
Its age determined by Rb-Sr isochron is 306 Ma, suggesting that it was formed at Hercynian. 据Rb-Sr等时线测定,其年令值为306Ma,说明它形成于海西期。
The isochron of whole rock Rb-Sr of intrusive during Caledonian in xiao Qinling mountain is 503 Ma. 小秦岭加里东期侵入岩的全岩Rb-Sr等时线年龄值为503Ma。