Using a dual isotopic approach to trace sources and mixing of sulphate in Changjiang Estuary, China

	Using a dual isotopic approach to trace sources and mixing of sulphate in Changjiang Estuary, China
	Si-Liang Li; Cong-Qiang Liu; Sivaji Patra; Fushun Wang; Baoli Wang; Fujun Yue
	2011
发表期刊	Applied Geochemistry
卷号	26 期号:S 页码:S210-S213
摘要	The dual isotopic compositions of dissolved SO(4)(2-) in aquatic systems are commonly used to ascertain SO(4)(2-) sources and possible biogeochemical processes. In this study, the physical parameters, major anions and isotopic compositions of SO(4)(2-) in water samples from Changjiang River (Nanjin) to the East Sea in Changjiang Estuary were determined. The salinity ranged from 0% to 32.3% in the estuary water samples. The Cl(-), SO(4)(2-) concentrations and delta(18)O-H(2)O values followed the salinity variations from freshwater to seawater, which indicated that mixing processes might be a major factor involved in the distribution of water and solutes. The contents and isotopic compositions of SO(4)(2-) suggested that atmospheric deposition, evaporite dissolution and sulphide oxidation were the major sources of dissolved SO(4)(2-) in the freshwater of Changjiang River. In addition, the mixing model calculated by contents and isotopic compositions of SO(4)(2-) indicated that the mixing of freshwater and sea water was the major factor involved in SO(4)(2-) distribution in Changjiang Estuary. However, slightly elevated delta(18)O-SO(4) values were observed in the turbidity maximum zone, which suggested that biological processes might affect the O isotopic compositions of SO(4)(2-) there.
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/4897
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Si-Liang Li,Cong-Qiang Liu,Sivaji Patra,et al. Using a dual isotopic approach to trace sources and mixing of sulphate in Changjiang Estuary, China[J]. Applied Geochemistry,2011,26(S):S210-S213.
APA	Si-Liang Li,Cong-Qiang Liu,Sivaji Patra,Fushun Wang,Baoli Wang,&Fujun Yue.(2011).Using a dual isotopic approach to trace sources and mixing of sulphate in Changjiang Estuary, China.Applied Geochemistry,26(S),S210-S213.
MLA	Si-Liang Li,et al."Using a dual isotopic approach to trace sources and mixing of sulphate in Changjiang Estuary, China".Applied Geochemistry 26.S(2011):S210-S213.

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