The calibration and quality evaluation of elemental analysis results of marine sediment measured by an X-ray fluorescence core scanner

ZHANG Xilin; FAN Dejiang; WANG Liang; LIAO Yongjie; YAO Zhengquan

Article Contents

Article Navigation > Haiyang Xuebao > 2013 > 35(6): 86-95

ZHANG Xilin, FAN Dejiang, WANG Liang, LIAO Yongjie, YAO Zhengquan. The calibration and quality evaluation of elemental analysis results of marine sediment measured by an X-ray fluorescence core scanner[J]. Haiyang Xuebao, 2013, 35(6): 86-95.

Citation:

PDF( 7923 KB)

The calibration and quality evaluation of elemental analysis results of marine sediment measured by an X-ray fluorescence core scanner

1.
Key Laboratory of Ministry of Education for Submarine Geosciences and Technology, College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
2.
Key Laboratory of State Oceanic Administration for Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Received Date: 2012-06-01

Abstract

Abstract

Based on Core C0702 in the East China Sea mud area, an elemental analysis quality was appraised by comparing the results of two analysis methods, which are an X-ray fluorescence core scanner (X-ray core scanner) and an X-ray fluorescence spectrometer (XRF). The results show that: (1) The elements detected by the X-ray core scanner can be divided into four classes. Elements in Class Ⅰ show a high detecting quality, and the intensities of these elemente measured by the X-ray core scanner can be taken as contents directly. The measuring intensities of elements in Class Ⅱ are great significance, and those in Class Ⅲ are small significance. However,the measured intensities of elements in Class Ⅳ are worthless and minor significant. (2) The analysis results of element itensities in marine sediments detected by the X-ray core scanner affected by compaction, especially, Ca,Fe,K,Ti,Si are more vulnerable. A formula for eliminating this effect via calibration is proposed. (3) The measuring results of Ca,Fe,K,Si,Ti detected by the two methods show a good linear relationship (with correlation coefficients of 0.46-0.87), so the element intensities of Ca,Fe,K,Si,Ti detected by the X-ray core scanner could be converted into the chemical content according to the relationship.
- X-ray core scanner,
- marine sediment,
- elemental analysis,
- quality evaluation,
- compaction correction,
- high-resolution sedimentary record

FullText(HTML)

References(17)

References

Jansen J H F, Van der Gaast S J, Koster B, et al. CORTEX, a shipboard XRF-scanner for element analyses in split sediment cores[J]. Marine Geology, 1998, 151: 143-153.

汪品先, 翦知湣. 寻求高分辨率的古环境记录[J]. 第四纪研究, 1999 (1) :1-17.

Croudace I W, Williams-Thorpe O. A low dilution, wavelength-dispersive X-ray fluorescence procedure for the analysis of archaeological rock artefacts[J]. Archaeometry, 1988, 30: 227-236.

Croudace I W, Rindby Anders, Rothwell R Guy. ITRAX: description and evaluation of a new multi-function X-ray core scanner[M]//Rothwell R G. New Techniques in Sediment Core Analysis: Special Publications. Geological Society, London, 2006: 51-63.

Jenkins R.X-Ray Fluorescence Spectrometry[M]. 2nd Chichester: Wiley, 1999.

Kido Y, Koshikawa T, Tada R. Rapid and quantitative major element ananlysis method for wet fine-grained sediments using an XRF microscanner[J]. Marine Geology, 2006, 229 (3/4) : 209-225.

Rothwell R G, Rack F R. New techniques in sediment core analysis: an introduction[J]. Geological Society, London, Special Publications, 2006, 267 (1) : 1-29.

Kujau A, Nurnberg D, Zielhofer C. Mississippi River discharge over the last~560 000 years-Indications from X-ray fluorescence core-scanning[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2010, 298:311-318.

Kylander M E, Ampel L, Wohlfarth B, et al. High-resolution X-ray fluorescence core scanning analysis of Les Echets (France) sedimentary sequence: new insights from chemical proxies[J]. Journal of Quaternary Science, 2011, 26 (1) :109-117.

杨文光, 郑洪波, 王可, 等.南海东北部MD05-2905站36 ka BP以来的陆源碎屑沉积特征与东亚季风的演化[J].地球科学进展, 2007 (10) :1012-1018.

梅西, 张训华, 郑洪波, 等. 南海南部120 ka以来元素地球化学记录的东亚夏季风变迁[J]. 矿物岩石地球化学通报, 2010, 29 (2) :134-141.

雷国良, 张虎才, 常凤琴, 等.湖泊沉积物XRF元素连续扫描与常规ICP-OES分析结果的对比及校正——以兹格塘错为例[J]. 湖泊科学, 2011, 23 (2) :287-294.

Liang L J, Sun Y B, Yao Z Q. Evaluation of high-resolution elemental analyses of Chinese loess deposits measured by X-ray fluorescence core scanner[J]. Catena, 2012 (92) :75-82.

李国会, 马光祖, 罗立强, 等. X射线荧光光谱分析中不同价态硫对测定硫的影响及地质试样中全硫的测定[J].岩矿测试, 1994, 13 (4) :264-268.

Zavarin M, Doner H E. Interpretation of heterogeneilty effects in synchrotron X-ray fluorescence microprobe date[J]. Geochem Trans, 2002, 3 (7) : 51-55.

Tjallingii R, Rohl U, KOLLING M, et al. Influence of the water content on X-ray fluorescence core-scanning measurement in soft marine sediment[J]. Geochem, Geophys, Geosysr, 2007, 2 (8) : 2-3.

Weltje G J, Tjallingii R. Calibration of XRF core scanners for quantitative geochemical logging of sediment cores: theory and application[J]. Earth and Planetary Science Letters, 2008, 27 (3/4) : 423-438.

Relative Articles

Supplements(0)

Cited By

Proportional views