李百蝉;冯兰平;王倩;陶云;周炼;

• 1:中国地质大学(武汉)地质过程与矿产资源国家重点实验室

摘要(Abstract)：

非传统稳定锶同位素(δ~(88)/~(86)Sr)的研究近年来已取得了较大的进展,其主要研究内容集中在讨论稳定锶同位素在海洋地球化学中的应用,主要包括以下几个方面:稳定锶同位素(δ~(88)/~(86)Sr)在自然界主要储库中的组成、显生宙海水δ~(88)/~(86)Sr的变化规律和海洋中锶同位素系统平衡的评估。海水中的锶同位素组成在显生宙发生过较大的变化,通过对海洋锶同位素体系对各输入和输出通量组成动态变化的响应评估表明,现代海洋锶同位素体系处于不平衡状态,这一现象被归因于冰期后的风化顶峰尚未结束。联立放射性锶同位素87Sr/~(86)Sr和稳定同位素δ~(88)/~(86)Sr所建立的完整的锶同位素体系相较传统放射性锶同位素87Sr/~(86)Sr能够对海洋锶地球化学循环的动态过程进行更好的评估,在海洋地球化学相关领域具有广阔的应用前景。

关键词(KeyWords)： δ88/86Sr;同位素分馏;海洋地球化学循环

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41473007;41673013)

作者(Author): 李百蝉;冯兰平;王倩;陶云;周炼;

Email:

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