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Preprints
https://doi.org/10.5194/tc-2020-225
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-2020-225
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Sep 2020

01 Sep 2020

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This preprint is currently under review for the journal TC.

Brief Communication: New evidence further constraining Tibetan ice core chronologies to the Holocene

Shugui Hou1,2, Wangbin Zhang1, Ling Fang3,4, Theo M. Jenk3,4, Shuangye Wu5, Hongxi Pang1, and Margit Schwikowski3,4 Shugui Hou et al.
  • 1School of Geographic and Oceanic Sciences, Nanjing University, Nanjing 210023, China
  • 2School of Oceanography, Shanghai Jiao Tong University, Shanghai 200240, China
  • 3Laboratory of Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
  • 4Oeschger Centre for Climate Change Research, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
  • 5Department of Geology, University of Dayton, Dayton, OH 45469, USA

Abstract. There is considerable controversy regarding the age ranges of Tibetan ice cores. The Guliya ice core was reported to reach as far back as ~ 760 ka (thousand years), whereas chronologies of all other Tibetan cores cover at most the Holocene. Here we present ages for two new ice cores reaching bedrock, from the Zangser Kangri (ZK) glacier in the northwestern Tibetan Plateau and the Shulenanshan (SLNS) glacier in the western Qilian Mountains. We estimated bottom ages of 8.90 ± 0.57/0.56 ka BP and 7.46 ± 1.46/1.79 ka BP for the ZK and SLNS ice core respectively, constraining the time range accessible by Tibetan ice cores to the Holocene.

Shugui Hou et al.

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Short summary
We present ages for two new ice cores reaching bedrock, from the Zangser Kangri (ZK) glacier in the northwestern Tibetan Plateau and the Shulenanshan (SLNS) glacier in the western Qilian Mountains. We estimated bottom ages of 8.90 ± 0.57/0.56 ka BP and 7.46 ± 1.46/1.79 ka BP for the ZK and SLNS ice core respectively, constraining the time range accessible by Tibetan ice cores to the Holocene.
We present ages for two new ice cores reaching bedrock, from the Zangser Kangri (ZK) glacier in...
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