Articles | Volume 15, issue 10
The Cryosphere, 15, 4807–4822, 2021
https://doi.org/10.5194/tc-15-4807-2021

Special issue: Oldest Ice: finding and interpreting climate proxies in ice...

The Cryosphere, 15, 4807–4822, 2021
https://doi.org/10.5194/tc-15-4807-2021

Research article 12 Oct 2021

Research article | 12 Oct 2021

Deep ice as a geochemical reactor: insights from iron speciation and mineralogy of dust in the Talos Dome ice core (East Antarctica)

Giovanni Baccolo et al.

Data sets

XAS spectra of dust particles from ice sections of the Talos Dome ice core (East Antarctica) G. Baccolo, B. Delmonte, P. B. Niles, G. Cibin, E. Di Stefano, D. Hampai, L. Keller, V. Maggi, A. Marcelli, J. Michalski, C. Snead, and M. Frezzotti https://doi.org/10.1594/PANGAEA.924114

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Short summary
As scientists are pushing efforts to recover deep ice cores to extend paleoclimatic reconstructions, it is now essential to explore deep ice. The latter was considered a relatively stable environment, but this view is changing. This study shows that the conditions of deep ice promote the interaction between soluble and insoluble impurities, favoring complex geochemical reactions that lead to the englacial dissolution and precipitation of specific minerals present in atmospheric mineral dust.