Holocene electrical and chemical measurements from the EPICA–Dome C ice core

Udisti, R.; Becagli, S.; Castellano, E.; Mulvaney, R. ORCID: https://orcid.org/0000-0002-5372-8148; Schwander, J.; Torcini, S.; Wolff, E.. 2000 Holocene electrical and chemical measurements from the EPICA–Dome C ice core. Annals of Glaciology, 30 (1). 20-26. 10.3189/172756400781820750

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Abstract/Summary

The comparison between electric (electric-conductivity measurement (ECM) and dielectric profiling (DEP)) and chemical (sulphate and chloride) depth profiles along the first 400 m of the EPICA-Dome C ice core revealed a very good fit, especially for peaks related to volcanic emissions. From the comparison between these profiles, a dominant contribution of sulphuric acid to the ionic balance of Antarctic ice for the Holocene was confirmed. A progressive increase with depth was observed for chloride concentrations, showing a change of relative contribution between sulphate and chloride. A higher increase of chloride was evident between 270 and 360 m depth, probably due to a change in source or transport processes or to an increase of the annual snow-accumulation rate. The DEP, ECM and sulphate ice signatures of Tambora (AD 1816) and El Chichon (?) (AD 1259) eruptions are described in detail. A characteristic peak series, due to HCl deposition, was identified at 103-109 m depth from the ECM, DEP and chloride profiles

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.3189/172756400781820750
Programmes:	BAS Programmes > Pre 2000 programme
ISSN:	02603055
NORA Subject Terms:	Chemistry
Date made live:	17 Jul 2013 14:24 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/502660

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