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地球科学进展  2010, Vol. 25 Issue (2): 220-229    DOI: 10.11867/j.issn.1001-8166.2010.02.0220
IODP研究     
Nd同位素方法应用于示踪古洋流的研究进展
吴  琼,刘志飞
同济大学海洋地质国家重点实验室,上海  200092
Research Advance in Tracing Evolution Pattern of Paleo-Currents by Using Nd isotpic Composition
Wu Qiong, Liu Zhifei
State Key Laboratory of Marine Geology, Tongji University, Shanghai  200092, China
 全文: PDF(26283 KB)  
摘要:

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。

关键词: Nd同位素Fe-Mn氧化物覆层鱼骨碎屑海洋环境洋流演化    
Abstract:

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.

 

Key words: Nd isotopic composition    Fe-Mn coating    fossil fish debris    ocean condition    ocean current evolution
收稿日期: 2009-12-16 出版日期: 2010-02-10
:  P734.2+  
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

通讯作者: 吴琼     E-mail: wuqiong06@gmail.com
作者简介: 吴琼(1985-),女,安徽安庆人,硕士研究生,主要从事同位素地球化学研究. E-mail:wuqiong06@gmail.com
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引用本文:

吴 琼,刘志飞. Nd同位素方法应用于示踪古洋流的研究进展[J]. 地球科学进展, 2010, 25(2): 220-229.

Wu Qiong, Liu Zhifei. Research Advance in Tracing Evolution Pattern of Paleo-Currents by Using Nd isotpic Composition. Advances in Earth Science, 2010, 25(2): 220-229.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2010.02.0220        http://www.adearth.ac.cn/CN/Y2010/V25/I2/220

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