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本文详细地阐述了海水 陆表水双元体系中锶同位素的混合原理、混合水体中87Sr/ 86Sr值与盐度的定量关系。利用Sr同位素不随生物、化学作用过程发生分馏作用及Sr与Ca化学性质相似等特征 ,地层、沉积物中生物壳体和碳酸盐岩87Sr/ 86Sr值可作为沉积水体 (古 )盐度确定的一种有用工具。文中详细地综述了国内外在这方面的研究进展 ,并讨论了成岩后生作用对生物壳体和碳酸盐岩87Sr/ 86Sr原始值的影响作用 ,以及可能存在的一些问题
This paper describes in detail the principle of mixing strontium isotopes in seawater and surface water dual-element system, and quantitative relationship between 87Sr / 86Sr and salinity in mixed water. Utilizing the fact that Sr isotopes are not fractionated by biological and chemical processes and that the chemical properties of Sr and Ca are similar, the 87Sr / 86Sr values of the biological crusts and carbonate rocks in the strata and sediments can be determined as the salinity of sedimentary bodies A useful tool In this paper, the progress of research at home and abroad in this area is reviewed in detail, and the effect of post-diagenesis on the original values of 87Sr / 86Sr in biological shells and carbonate rocks is discussed, and some possible problems are discussed