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	Influence of particle composition on thorium scavenging in the marginal China seas
	Yang, Weifeng ; Yang WF(杨伟锋) ; Chen, Min ; Chen M(陈敏) ; Cao, Jianping ; Cao JP(曹建平) ; Qiu, Yusheng ; Qiu YS(邱雨生) ; Zhang, Run ; Ma, Qiang ; Tong, Jinlu ; Yang, Junhong ; Yang, Zhi ; Lue, E
	2009
关键词	POC biogenic silica thorium carbonate particle composition
英文摘要	Thorium-234 and particle composition (organic matter, biogenic silica, carbonate and lithogenic component) were examined in the East China Sea (ECS) and the northern South China Sea (NSCS) in order to constrain the particle types scavenging thorium isotopes. Good positive correlations between particulate organic matter (POM) or carbonate and thorium-234 in suspended particulate matter (SPM) indicates that POM and carbonate are efficient to scavenge thorium-234. No relationship between biogenic silica and thorium-234 suggests that geochemical behavior of thorium-234 may be not influenced by biogenic silica. A simple model was used to evaluate the affinity of thorium-234 to different particle components. The results show that POM is the most efficient scavenger for thorium-234 in the ECS and the NSCS, followed by carbonate. The authors' results lend support to the utility of thorium-234 as a proxy of POC and carbonate in the upper layer. However; the strong dependence of thorium scavenging on particle composition challenges thorium-230 as a constant flux proxy.
语种	英语
出版者	CHINA OCEAN PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/8817]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Yang, Weifeng,Yang WF,Chen, Min,et al. Influence of particle composition on thorium scavenging in the marginal China seas[J],2009.
APA	Yang, Weifeng.,杨伟锋.,Chen, Min.,陈敏.,Cao, Jianping.,...&Lue, E.(2009).Influence of particle composition on thorium scavenging in the marginal China seas..
MLA	Yang, Weifeng,et al."Influence of particle composition on thorium scavenging in the marginal China seas".(2009).

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