This is because particular isotopes of strontium dominant within a geologicalregion are digested by individuals living there and incorporated into their tooth enamel.
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。
2
These fragments were then analysed to test for particular isotopes, or forms, of the metallic element strontium, which can reveal the geologicalregion where individuals were raised.
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。
3
Bown and his colleagues stumbled across it while they were doing geological mapping in the region.