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.

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Cited articles

Albani, S., Delmonte, B., Maggi, V., Baroni, C., Petit, J.-R., Stenni, B., Mazzola, C., and Frezzotti, M.: Interpreting last glacial to Holocene dust changes at Talos Dome (East Antarctica): implications for atmospheric variations from regional to hemispheric scales, Clim. Past, 8, 741–750, https://doi.org/10.5194/cp-8-741-2012, 2012a. 
Albani, S., Mahowald, N. M., Delmonte, B.,Maggi, V., and Winckler, G.: Comparing modeled and observed changes in mineral dust transport and deposition to Antarctica between the Last Glacial Maximum and current climates, Clim. Dynam., 38, 1731–1755, 2012b. 
Baccolo, G., Cibin, G., Delmonte, B., Hampai, D., Marcelli, A., Di Stefano, E., Macis, S., and Maggi, V.: The contribution of synchrotron light for the characterization of atmospheric mineral dust in deep ice cores: preliminary results from the talos dome ice core (east antarctica), Condens. Matter, 3, 25, https://doi.org/10.3390/condmat3030025, 2018a. 
Baccolo, G., Delmonte, B., Albani, S., Baroni, C., Cibin, G., Frezzotti, M., Hampai, D., Marcelli, A., Revel, M., Salvatore, M., Stenni, B., and Maggi, V.: Regionalization of the atmospheric dust cycle on the periphery of the East Antarctic ice sheet since the last glacial maximum, Geochem. Geophy. Geosy., 19, 3540–3554, 2018b. 
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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.