微量元素锶及其同位素的地球化学研究与应用前景

锶元素的浓度和同位素组成在自然界的碳酸盐、水体和生物体中有很大的变化范围,这种变率和定量的相关性可能是沉积速率、介质环境、矿物结晶体生长机制和生物聚集或选择吸收作用的函数。随着测量分析技术的提高,以及锶元素含量和同位素组成变化的地球化学理论模式的逐步完善,锶元素和同位素组成的地球化学特征成为研究水文循环、碳酸盐成岩作用机制、以及由此引出的古环境评价和现代环境的监测与示踪等方面的重要工具。主要介绍了锶元素及其同位素在以上各方面的研究进展及其应用前景。

RECENT ADVANCES IN THE TRACE ELEMENT AND ISOTOPIC GEOCHEMISTRY OF STRONTIUM AND THE APPLICATION PERSPECTIVES

The wide range and quantifiable covariation of the concentration and isotopic composition of strontium may be the parameters of precipitation rate, media environment, crystal growth mechanism and biological effects. With the advancing analysis technique and the improving theoretical modeling of Sr concentration and isotopic variation, the study on the trace element and isotope geochemistry of Sr become increasingly important tools for understanding the hydrological cycle and carbonate diagenesis, and for evaluating the paleoenvironment and modern environmental problems. This paper reviews the study on strontium's trace element and isotope geochemistry and offers new perspectives into their applications.