Chinese Science Bulletin

, Volume 46, Issue 4, pp 334–337 | Cite as

Fine grain IRSL and GLSL dating of late Quaternary sediments from North China

  • Hua Zhao
  • Yanchou Lu
  • Jie Chen
  • Gongming Ying


A possible approach to assess the fine grain OSL dating is discussed through comparison of equivalent dose (D e) values and ages obtained by IRSL and GLSL of fine grains for 31 sediment samples from North China. The IRSL and GLSL were measured with the same aliquots for each sample, i.e. shine-down was by 100 s of IRSL (880 nm) followed by 100 s of GLSL (514 nm) on the same discs. TheD e values and ages found by IRSL are in good agreement with those by GLSL within 1–2σ for 80% samples, especially for aeolian loess samples. Considering that IRSL from feldspar differs obviously from GLSL dominated from quartz in dose response, thermal stability and optical bleaching characteristic, the agreement between the DE values may be taken as evidence that the two clocks of IRSL and GLSL had been well reset during deposition. The consistent ages of IRSL and GLSL, in turn, may be referred to an indicator to evaluate the fine grain OSL dating of sediments.


comparison of IRSL and GLSL dating fine grain Quaternary sediments North China 


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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Hua Zhao
    • 1
  • Yanchou Lu
    • 1
    • 2
  • Jie Chen
    • 2
  • Gongming Ying
    • 2
  1. 1.Institute of Earth EnvironmentChinese Academy of SciencesXi’anChina
  2. 2.Insitute of GeologySeismological Bureau of ChinaBeijingChina

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