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Thermoluminescence Characteristics of Yanzhuang Meteorite

  • Xiande XieEmail author
  • Ming Chen
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  • 18 Downloads

Abstract

The Yanzhuang meteorite is a heavily shocked chondrite and composed of light-colored unmelted phase and black-colored melted phase. Our thermoluminescence (TL) determinations have revealed that the intensities of natural TL for its unmelted phase and melted phase are different. The equivalent β-dose of unmelted phase is in about three times higher than that of melted phase, indicating the temperature of melted phase is much higher than that of unmelted phase. Two special TL phenomena have been found in Yanzhuang meteorite through the determination of the natural TL, annealed TL, and induced TL by β-radiation: (1) When the sample of Yanzhuang meteorite is annealed at temperature up to 500 °C, the TL peak induced by β-rays moves to lower temperature with the increasing of irradiation dose; (2) when the annealed temperature is greater than 600 °C, the TL peak temperature of the annealed sample is higher than that of the unannealed sample, indicating the shock effect changes the TL characteristics of the chondrite. The measured equivalent β-dose for the Yanzhuang unmelted and melted phases are 9238 Gy and 2753 Gy, respectively, showing that the thermal event age for the two parts in this meteorite is not equal, and their thermal histories are not the same, either.

Keywords

Yanzhuang chondrite Shock effect Thermoluminescence β-radiation 

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) Micromineralogy and shock effects in Yanzhuang chondrite (H6). Ph.D. thesis, The Institute of Geochemistry, Chinese Academy of Sciences, p 95 (in Chinese with English abstract)Google Scholar
  3. Chen M, Xie XD (1996) Na behaviour in shock-induced melt phase of the Yanzhuang (H6) chondrite. Eur J Mineral 8:325–333CrossRefGoogle Scholar
  4. Dai CD, Wang DD, Jin XG (1994) Shock-loading experimental study of ordinary chondrite. Sci China·Earth Sci 24:977–982Google Scholar
  5. Guimon RK, Sears DW (1984) Thermoluminescence as a palaeothermometer. Nature 311:363–365CrossRefGoogle Scholar
  6. Li ZH, Liu JF (1995) A study on the thermal histories of some Chinese ordinary chondrites using thermoluminescence and noble gas methods. Nucl Tech 18:399–404 (in Chinese with English abstract)Google Scholar
  7. Liu JF, Li DH (1999) A study on shock effects and TL characteristics of chondrites. Geotectonica Metallogenia 23:262–266 (in Chinese with English abstract)Google Scholar
  8. Liu JF, Xie XD, Wang DD, Xia JD (1993) TL shifts and age of thermal events of Yanzhuang meteorite. Nucl Tech 16:236–239 (in Chinese with English abstract)Google Scholar
  9. Wagner GA (1985) Thermoluminescence studies on Jilin meteorite. Earth Planet Sci Lett 72:304–306CrossRefGoogle Scholar
  10. Wang WD (1991) Determination of annual U and Th dosages in TL and ESR dating using thick-source A counting. Nucl Tech 11:101–108 (in Chinese with English abstract)Google Scholar
  11. Xie XD, Chen M (2018) Yanzhuang meteorite: mineralogy and shock metamorphism. Guangdong Science & Technology Press, Guangzhou, p 202 (in Chinese with English abstract)Google Scholar
  12. Xie XD, Li ZH, Wang DD, Liu JF, Hu RY, Chen M (1994) The new meteorite fall of Yanzhuang, a severely shocked H6 chondrite with black molten materials. Chin J Geochem 12:39–46CrossRefGoogle 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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