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The Cryosphere An interactive open-access journal of the European Geosciences Union
doi:10.5194/tc-2017-68
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
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10 May 2017
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This discussion paper is under review for the journal The Cryosphere (TC).
The first luminescence dating of Tibetan glacier basal sediment
Zhu Zhang, Shugui Hou, and Shuangwen Yi School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093, China
Abstract. Dating of ice cores drilled in the high mountain glaciers is difficult because seasonal variations cannot be traced at depth due to rapid thinning of the ice layers. Here we provide the first luminescence dating of the basal sediment of the Chongce ice cap in the northwest Tibetan Plateau. Assuming the sediment is of similar (or older) age as the surrounding ice, the dating result of 42 ± 4 ka provides an upper limit for the age of the ice cap. This result is more than one magnitude younger than the previously suggested age of the basal ice of the nearby Guliya ice cap (~ 40 km in distance).

Citation: Zhang, Z., Hou, S., and Yi, S.: The first luminescence dating of Tibetan glacier basal sediment, The Cryosphere Discuss., doi:10.5194/tc-2017-68, in review, 2017.
Zhu Zhang et al.
Zhu Zhang et al.
Zhu Zhang et al.

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Short summary
We provide the first luminescence dating of the basal sediment of the Chongce ice cap in the west Kunlun Mountains on the northwest Tibetan Plateau (TP), which gives an upper limit age of 42 ± 4 ka. The age is more than one magnitude younger than the previously suggested age of bottom ice in the west Kunlun Mts. This work provides an important step towards better understanding the TP ice cores and more accurate interpretation of their records.
We provide the first luminescence dating of the basal sediment of the Chongce ice cap in the...
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