DISTRIBUTION OF MAJOR ELEMENTS IN SEDIMENT BY SEQUENTIAL EXTRACTION PROCEDURES

ZOU Liang; WEI Gang-jian

Marine Geology & Quaternary Geology > 2007 > 27(2): 133-140.

ZOU Liang, WEI Gang-jian. DISTRIBUTION OF MAJOR ELEMENTS IN SEDIMENT BY SEQUENTIAL EXTRACTION PROCEDURES[J]. Marine Geology & Quaternary Geology, 2007, 27(2): 133-140.

Citation:

ZOU Liang, WEI Gang-jian. DISTRIBUTION OF MAJOR ELEMENTS IN SEDIMENT BY SEQUENTIAL EXTRACTION PROCEDURES[J]. Marine Geology & Quaternary Geology, 2007, 27(2): 133-140.

Citation:

ZOU Liang, WEI Gang-jian. DISTRIBUTION OF MAJOR ELEMENTS IN SEDIMENT BY SEQUENTIAL EXTRACTION PROCEDURES[J]. Marine Geology & Quaternary Geology, 2007, 27(2): 133-140.

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DISTRIBUTION OF MAJOR ELEMENTS IN SEDIMENT BY SEQUENTIAL EXTRACTION PROCEDURES

ZOU Liang^1,2,
WEI Gang-jian¹

1 Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;
2 Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

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Received Date: November 14, 2006
Revised Date: January 04, 2007

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Abstract

Abstract

Distribution of major elements in marine sediments and water system was studied in this paper by using a modified sequential extraction procedure according to the methods of Tessier,BCR and so on. Concentrations of Ti,Al,Na,Mg,K,Ca,P,Fe,and Mn in the extracted components leached by different reagents were measured using inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-AES). The results indicate that the most abundant elements extracted by water are Na and Ca, and Ca and P tend to be abundant in organic materials compared with other elements. Large amounts of Ca and Mg are extracted by HAc, which may result from dissolution of carbonate. Additionally, some of the Al, Mn, Na and K are also extracted by HAc. In the component extracted by diluted HCl, the concentrations of these elements except Ti are high, indicating that authigenic materials were significantly dissolved. However, nearly all the Ti in sediments retains in the residue after previous four extraction procedures, suggesting that Ti is mostly hosted in detrital component. The Ti-normalized ratios of other elements in the extracted components all show significantly higher values than those of the average composition in sediments in China, indicating that the dissolved components are mainly authigenic biogenic materials, and the residue after this sequential extraction can basically represent the terrestrial detrital component in sediments.
- sequential extraction procedures,
- marine sediment,
- major elements

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References (18)

References

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DISTRIBUTION OF MAJOR ELEMENTS IN SEDIMENT BY SEQUENTIAL EXTRACTION PROCEDURES