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New evidence for enhanced cosmogenic isotope production rate in the atmosphere ≈ 37 kaBP from the Guliya ice core

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Chinese Science Bulletin

Abstract

A36Cl peak was found in the predicted section of Guliya ice core, from the Qinghai-Tibetan Plateau, at about 37 kaBP. This cannot be interpreted by means of changes in the accumulation rate, but by the enhanced cosmogenic isotope production rate in the atmosphere. Compared with the records of10Be and36Cl in the other regions, the peaks of the cosmogenic isotopes are global and can be considered as time marks. An intriguing fact is that the peaks coincided with cold periods.

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Authors and Affiliations

  1. Laboratory of Ice Core and Cold Regions Environment, Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences, 730000, Lanzhou, China

    Ninglian Wang, Tandong Yao & Dahe Qin

  2. Byrd Polar Research Center, Ohio State University, 45701, OH, USA

    L. G. Thompson, E. Mosley-Thompson, J. Cole-Dai, M. E. Davis & P. -N. Lin

Authors
  1. Ninglian Wang
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  2. Tandong Yao
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  3. Dahe Qin
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  4. L. G. Thompson
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  5. E. Mosley-Thompson
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  6. J. Cole-Dai
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  7. M. E. Davis
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  8. P. -N. Lin
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Wang, N., Yao, T., Qin, D. et al. New evidence for enhanced cosmogenic isotope production rate in the atmosphere ≈ 37 kaBP from the Guliya ice core. Chin.Sci.Bull. 44, 1616–1620 (1999). https://doi.org/10.1007/BF02886105

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  • DOI: https://doi.org/10.1007/BF02886105

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