锶同位素研究综述

Strontium Isotope Research Progress

锶有4个稳定同位素:^(84)Sr,^(86)Sr,^(87)Sr和^(88)Sr。其中,^(87)Sr由^(87)Rb衰变产生,随着时间的演化^(87)Sr单方向增长,不同来源物质^(87)Sr/^(86)Sr比值不同,可以把锶同位素作为物源示踪的指纹。锶同位素在地下水、古海水、河流、碳酸盐岩和地层定年等领域研究中取得了一定的进展,但是由于样品选择、分析测试技术等因素的制约,不同时代的锶同位素演化曲线或数据库还不完善,曲线的分辨率还不够清晰,锶同位素在前寒武纪的应用相对较少,锶同位素地球化学与其他学科结合研究是今后努力的方向。随着技术的不断发展以及锶同位素的深入研究,锶同位素的地质应用前景将日趋广泛。

Strontium has four stable isotopes：（84）Sr,（86）Sr,（87）Sr and （88）Sr.（87）Sr is decaying from （87）Rb.As the time going by,the（87）Sr is growing under certain circumstances.The radio of（87）Sr/（86）Sr that from all kinds of sources varies,then,we can look the strontium isotope as the fingerprint of the sources.The use of strontium isotope has made some progress in recent years in some areas,such as the groundwater,paleoseawater,rivers,carbonate and stratum.However,because of the samples,the analysis and testing technology and so on,the strontium isotope curve in different times is imperfect,the curve resolution needs to be improved and the application of strontium isotope in Precambrian is relatively little.It would be better to combine strontium isotope geochemistry with other subjects in research.As the technology evolving along with the deeper research of the strontium isotope,strontium isotope geology application prospects will be increasingly widespread.