在18件样本上检测了氧和锶的同位素。这两种元素在牙齿成型时，会固定在牙釉质上。
Oxygen and strontium isotopes, which are fixed in dental enamel at the time of tooth formation, were tested in 18 subjects.
对这些珐琅碎片进行金属元素锶的同位素测试，这种元素可以揭示出个体所成长的地理区域。
These fragments were then analysed to test for particular isotopes, or forms, of the metallic element strontium, which can reveal the geological region where individuals were raised.
依据是在一个地质区域内主要的锶同位素在被生活在该地的个体消化以后会被融进牙齿的釉质中。
This is because particular isotopes of strontium dominant within a geological region are digested by individuals living there and incorporated into their tooth enamel.
炸弹的副产品之一的放射性同位素锶-90扩散到空中，降落到地面，被奶牛摄取，然后通过牛奶供应传递出去。
The radioactive isotope Strontium-90, one of the by-products of the bombs, spread into the atmosphere, fell onto the land, was ingested by dairy cows and passed into the milk supply.
利用同位素对矿物质zh锶(这种矿物由人体从植物中吸收)的对比发现，他应该在地中海地区出生并长大。
And an isotopic comparison of the mineral strontium, which is absorbed by the body from plants, revealed that he was born and grew up in the Mediterranean.
海相岩石自生矿物中的锶同位素组成可反映其沉积时期的海平面波动趋势。
The Strontium isotope composition of Marine autogenetic minerals can reflect the sea level fluctuation trend during the minerals deposited.
根据川黔地区海相上古生界未经蚀变的92个样品的锶同位素测试数据，建立了该地区晚古生代锶同位素组成曲线。
This paper sets up a curve of the strontium isotopic composition of the Late Paleozoic based on 92 unaltered marine carbonate samples collected from Sichuan and Guizhou.
对放射性同位素衰变的测量，尤其是铀、锶、铷、氩和碳，可允许地质学家更精确地确定岩层的年龄。
The measurement of the decay of radioactive isotopes, especially uranium, strontium, rubidium, argon and carbon, has allowed geologists to more precisely determine the age of rock formations.
三叠纪是地球环境的重大变革时期，海水锶同位素组成的研究也较为困难。
Triassic is a period with a great change in global environment, so it is more difficult to study its strontium isotopic composition of seawater.
中新生代是地质历史中海水锶同位素组成变化最大的时期。
The Mesozoic and the Cenozoic are geological periods in which the greatest change in the composition of seawater strontium isotopes occurred.
利用锶同位素地球化学行为、地球化学特征及这些特征在沉积环境方面的指示意义，分析了东濮凹陷下第三系盐湖沉积的锶同位素特征。
With indicating significance of geochemical characteristics of Sr isotope in sedimentary environment, characteristics of Sr isotope in Eogene saline deposits in Dongpu depression have been studied.
川黔地区晚古生代锶同位素曲线与国外学者公布的同时代锶同位素曲线特征极为相似，显示了在地层学上的重要意义。
The fairly high similarity between this curve and other coeval curves sets up by some foreign scholars in other regions abroad, exhibits important stratigraphical significance.
随着分析测试技术的不断提高，锶同位素研究取得了重大进展。
Owing to the improvements on analytical and testing techniques, great progress has been made in research on Sr isotopes.
已公布的全球海水锶同位素曲线也具有显著的不一致性。
The published Strontium isotope curves of global seawater are different.
碳酸盐岩风化对碳平衡和锶同位素变化的影响不可被忽视。
The results report here reveal more evidence for CO2 comsumption and the evlution of Sr isotope by carbonate weathering.
碳酸盐岩风化对碳平衡和锶同位素变化的影响不可被忽视。
The results report here reveal more evidence for CO2 comsumption and the evlution of Sr isotope by carbonate weathering.
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