地球科学进展 ›› 2010, Vol. 25 ›› Issue (2): 220 -229. doi: 10.11867/j.issn.1001-8166.2010.02.0220

所属专题: IODP研究

IODP研究 上一篇    

Nd同位素方法应用于示踪古洋流的研究进展
吴  琼,刘志飞   
  1. 同济大学海洋地质国家重点实验室,上海  200092
  • 收稿日期:2009-12-16 修回日期:2010-01-15 出版日期:2010-02-10
  • 通讯作者: 吴琼 E-mail:wuqiong06@gmail.com
  • 基金资助:

    国家杰出青年科学基金项目“南海陆源碎屑沉积物的源区、搬运和沉积”(编号:40925008);国家自然科学基金项目“末次冰盛期以来南海深水洋流演化的示踪研究”(编号:40876024);国家高技术研究发展计划重点课题“大洋钻探站位调查关键技术研究”(编号:2008AA093001)资助

Research Advance in Tracing Evolution Pattern of Paleo-Currents by Using Nd isotpic Composition

Wu Qiong, Liu Zhifei   

  1. State Key Laboratory of Marine Geology, Tongji University, Shanghai  200092, China
  • Received:2009-12-16 Revised:2010-01-15 Online:2010-02-10 Published:2010-02-10

大洋环流在调节全球水热分配方面起着举足轻重的作用,对全球气候变化有着重要影响。为了更好地了解未来的气候变化模式,掌握古洋流变化与气候冷暖交替耦合关系的机理成为当务之急。目前,海水Nd同位素是追踪洋流演化方式的有效指标,获得了越来越多的关注。通过从海洋环境Nd同位素的相关特性以及研究材料与方法方面来阐述Nd同位素应用于示踪古洋流研究的可行性以及最新的进展,并配合实例进行说明。

Oceanic current plays a key role in controlling the redistribution of global heat and moisture, which may have effect on climatic change finally. It′s urgent to understand the mechanism of ocean current evolution, which may be related to alternation between warm and cold weather, and to better predict the trend of present climatic change. It has been confirmed that the Nd isotopic composition is an effective proxy for studying ocean current evolution, and has attracted many attentions. This paper interprets why the Nd isotopic composition could be used as a proxy to reconstruct paleocirculation through illustrating the characteristic of Nd. Besides, some materials enriched in Nd and methods for studying will be explained in detail.

 

中图分类号: 

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