Articles | Volume 12, issue 5
https://doi.org/10.5194/tc-12-1651-2018
https://doi.org/10.5194/tc-12-1651-2018
Research article
 | 
15 May 2018
Research article |  | 15 May 2018

Where is the 1-million-year-old ice at Dome A?

Liyun Zhao, John C. Moore, Bo Sun, Xueyuan Tang, and Xiaoran Guo

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Cited articles

Bell, R. E., Ferraccioli, F., Creyts, T. T., Braaten, D., Corr, H., Das, I., Damaske, D., Frearson, N., Jordan, T., Rose, K., Studinger, M., and Wolovick, M.: Widespread Persistent Thickening of the East Antarctic Ice Sheet by Freezing from the Base, Science, 331, 1592–1595, https://doi.org/10.1126/science.1200109, 2011. 
Carson, C. J., McLaren, S., Roberts, J. L., Boger, S. D., and Blankenship, D. D.: Hot rocks in a cold place: high subglacial heat flow in East Antarctica, J. Geol. Soc., 171, 9–12, https://doi.org/10.1144/jgs2013-030, 2014. 
Chung, D. H. and Kwon, T. H.: Invariant-based optimal fitting closure approximation for the numerical prediction of flow-induced fiber orientation, J. Rheol., 46, 169–194, 2002. 
Cui, X., Sun, B., Tian, G., Tang, X., Zhang, X., Jiang, Y., Guo, J., and Li, X.: Ice radar investigation at Dome A, East Antarctica:Ice thickness and subglacial topography, Chinese Sci. Bull., 55, 425–431, https://doi.org/10.1007/s11434-009-0546-z, 2010. 
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Short summary
We investigate the age–depth profile to be expected of the ongoing deep ice coring at Kunlun station, Dome A, using the depth-varying anisotropic fabric suggested by the recent polarimetric measurements in a three-dimensional, thermo-mechanically coupled full-Stokes model. The model results suggest that the age of the deep ice at Kunlun is 649–831 ka, and there are large regions where 1-million-year-old ice may be found 200 m above the bedrock within 5–6 km of the Kunlun station.