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LA-ICP-MS Analysis of Trace Elements in Yanzhuang

  • Xiande XieEmail author
  • Ming Chen
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  • 17 Downloads

Abstract

By taking the whole-rock melt phase, silicate melt phase, and FeNi metal phase in the Yanzhuang chondrite as research objects, this paper conducted trace element measurement of each phase using the LA-ICP-MS technique. The results show that (1) during the shock-induced melting of the Yanzhuang chondrite, the siderophile elements Fe, Ni, and Co are mainly concentrated in the FeNi metal blobs embedded in the whole-rock melt phase, while the elements Cr, V, Ti, and Mn are transferred into pyroxene crystallizing from silicate melt to substitute Al3+; (2) the chalcophile elements Cu, Ga, and Pb are also concentrated in the FeNi metal phase, while the volatile element Zn was partly lost upon melting, but it was mainly transferred into the microcrystalline pyroxene and olivine crystallizing from the silicate melt to substitute Fe2+; (3) the lithophile elements Sc, Zr, Nb, and Ta are basically enriched in the silicate melt phase, but the differentiation degrees of Nb and Ta are low, and the Nb/Ta ratio in the FeNi metal phase is lower than that in the silicate melt phase by more than 1 time, indicating that the activization ability of Nb is higher than Ta upon high P-T melting; (4) the rare earth elements (REE) patterns of whole-rock melt and silicate melt phases hold the characteristic features of Oddo–Harkins rule and show the tendency of enrichment of light REE and that of depletion of heavy REE, but the FeNi metal phase displays the tendency of depletion of LREE, and its total REE content is lower than that in the silicate melt phase by about three times. This indicates that REE, especially the LREE, are enriched in the silicate melt phase; and (5) Pt-group elements are moved to the FeNi metal phase after shock melting.

Keywords

Yanzhuang chondrite Shock melting FeNi metal Trace element LA-ICP-MS 

References

  1. Begemann F, Palme H, Spettel B, Weber HW (1992) On the thermal history of heavily shocked Yanzhuang H chondrite. Meteoritics 27:174–178CrossRefGoogle Scholar
  2. Chen M (1992) Micro-mineralogy and shock metamorphism of Yanzhuang meteorite. Ph.D thesis, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, p 95 (in Chinese with English abstract)Google Scholar
  3. Kong P, Xie XD (2003) Redistribution of elements in the heavily shocked Yanzhuang chondrite. Meteorit Planet Sci 38(5):739–746CrossRefGoogle Scholar
  4. Liu YS, Hu ZC, Gao S (2008) In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard. Chem Geol 257:34–43CrossRefGoogle Scholar
  5. Liu YJ, Cao LM, Li ZL, Wang HN, Chu TQ, Zhang JR (1984) Geochemistry of elements. Science Press, Beijing, pp 295–311Google Scholar
  6. Pearce NJG, Perkins WT, Westgate JA, Gorton MP, Jackson SE, Neal CR, Chenery SP (1997) A compilation of new and published major and trace element data for NIST SRM 610 and NIST SRM 612 glass reference materials. Geostand Newslett 21:115–144CrossRefGoogle Scholar
  7. Xie XD, Chen M (2016) Suizhou meteorite: mineralogy and shock metamorphism. Springer, Guangdong Science & Technology Press, Berlin, Heidelberg, Guangzhou, pp 211–223Google Scholar
  8. Xie XD, Zhang H (2017) Shock-induced melting and element redistribution of the Yanzhuang chondrite. Geochimica 46:301–309Google Scholar

Copyright information

© Guangdong Science & Technology Press Co., Ltd and Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhouChina

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