isotope analysis

The lead and sulfur isotope analysis suggests that the tremendous thick and stringer ore bodies may be formed by fluid of different geologic periods.

铅和硫同位素都揭示了层状（块状）和脉状矿体可能来自不同时期的成矿流体。

the results of lead isotope analysis indicate that the materials of the bayan obo group originated at 1314 ma b. p. and that the mineralization occurred at 6650 ma b.p.

铅同位素分析结果表明，白云鄂博群的物质来源始于1310Ma，矿化时间为665Ma。

The longterm preserved specimens and fossil insects, when used for stable isotope analysis, can expand the temporal scale of these studies greatly.

对长期保存标本与昆虫化石的同位素分析则扩展了研究的时间范围。

This text summarized the advancement of the use of isotope analysis of herbicide remainder.

本文综述了利用同位素示踪技术对除草剂的残留分析进展.

The isotope analysis of minim lead in the gold dust has special meaning.

砂金中的微量铅同位素分析具有特殊的意义.

Hydrogen Isotope Analysis of Heavy Water

重水的氢同位素组成分析

On the basis of isotope analysis it is pointed out that the ages of the shallow groundwater are quite young in general.

文章根据同位素分析结果，提出了浅层地下水年龄都较年轻的观点。

Application of Stable Carbon Isotope Analysis in the Research on Global Climate Change

全球气候变化研究的新技术&稳定碳同位素分析的应用

Sr/ Nd isotope analysis showed that the South Luo River loess has a relatively high87Sr/ 86Sr ratio and very low ε Nd ( 0) value, indicating that the studied loess has multiple sources.

Sr/Nd同位素分析表明，南洛河流域的黄土具有相对较高的87Sr/86Sr比值和非常低的εNd（0）值，表明其物质来源不同于黄土高原，而具有多源区的混合特征。