Aeolian dust and chemistry records from the EDML and EDC ice cores ...

• Main Authors: Ruth, Urs, Barbante, Carlo, Bigler, Matthias, Delmonte, Barbara, Fischer, Hubertus, Gabrielli, Paolo, Gaspari, Vania, Kaufmann, Patrik R, Lambert, Fabrice, Maggi, Valter, Marino, Federica, Petit, Jean Robert, Udisti, Roberto, Wagenbach, Dietmar, Wegner, Anna, Wolff, Eric William
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2008
• Subjects: Ice drill; EPICA drill; Dome C; EPICA-Campaigns; Kohnen Station; European Project for Ice Coring in Antarctica EPICA; Antarc*; Antarctic; Antarctica; Dronning Maud Land; EPICA; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.690364; https://doi.pangaea.de/10.1594/PANGAEA.690364

To improve quantitative interpretation of ice core aeolian dust records a systematic methodical comparison has been made involving methods of water-insoluble particle counting (Coulter Counter and laser-sensing particle detector), soluble ions (ion chromatography, IC, and continuous flow analysis, CFA), elemental analysis (inductively coupled plasma mass spectroscopy, ICP-MS, at pH 1 and after full acid digestion), and water-insoluble elemental analysis (proton induced X-ray emission, PIXE). Ice core samples covering the last deglaciation have been used from the EPICA Dome C (EDC) and the EPICA Dronning Maud Land (EDML) ice cores. All methods correlate very well amongst each other. The ratios of glacial age concentrations to Holocene concentrations, which are typically a factor ~100, differ significantly between the methods, but differences are limited to a factor < 2 for most methods with insoluble particles showing the largest change. The recovery of ICP-MS measurements depends on the digestion method ... : Supplement to: Ruth, Urs; Barbante, Carlo; Bigler, Matthias; Delmonte, Barbara; Fischer, Hubertus; Gabrielli, Paolo; Gaspari, Vania; Kaufmann, Patrik R; Lambert, Fabrice; Maggi, Valter; Marino, Federica; Petit, Jean Robert; Udisti, Roberto; Wagenbach, Dietmar; Wegner, Anna; Wolff, Eric William (2008): Proxies and measurement techniques for mineral dust in Antarctic ice cores. Environmental Science and Technology, 42(15), 5675-5681 ...