论文部分内容阅读
稳定硫同位素地球化学特征包含了大量的地质信息,在沉积学中有着广泛的用途。现在稳定硫同位素在沉积学中的研究主要涉及古海水硫酸盐浓度,古温计和古环境,沉积矿床成矿条件等方面。研究原理主要是依据稳定硫同位素分馏及其原因,研究方法主要利用质谱分析。本文以稳定硫同位素在沉积学中的应用的角度,介绍了稳定硫同位素的组成和分布,探讨了稳定硫同位素分馏在反映古海水硫酸盐浓度、古环境和沉积矿床方面的应用,指出了目前稳定硫同位素在沉积学应用中存在的问题、不足以及今后研究的展望。
Stable sulfur isotope geochemical characteristics contain a lot of geological information, has a wide range of uses in sedimentology. Now stable sulfur isotopes in sedimentology studies mainly related to the ancient seawater sulfate concentration, ancient thermometer and paleoenvironment, sedimentary deposit metallogenic conditions and so on. The principle of the study is mainly based on the stable sulfur isotope fractionation and its causes. The research methods mainly use mass spectrometry. In this paper, the composition and distribution of stable sulfur isotopes are introduced in the perspective of the application of stable sulfur isotopes in sedimentology. The application of stable sulfur isotope fractionation to reflect the ancient seawater sulphate concentration, paleoenvironment and sedimentary deposits is discussed. At present, The problems in the application of stable sulfur isotopes in sedimentology are not enough and the prospect of future research is expected.