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Influence of the Tungurahua eruption on the ice core records of Chimborazo, Ecuador.
Cryosphere 4, 561-568 (2010)
The comparison of two shallow ice cores recovered in 1999 and 2000 from the same place on the Chimborazo summit glacier revealed the influence of the coincident Tungurahua volcanic eruption on their stable isotope and chemical records. The surface snow melting and water percolation induced from the ash deposition caused a preferential elution and re-localization of certain ionic species, while the stable isotope records were not affected. Additionally, the comparison of the ionic amount and some selected ion ratios preserved along the ice core column reports under which processes the chemical species are introduced in the snow pack, as snow flake condensation nuclei, by atmospheric scavenging or by dry deposition. This preliminary study is essential for the interpretation of the deep Chimborazo ice core, or for other sites where surrounding volcanic activity influences the glaciochemical records.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Glaciochemical records; Climate Variability; Isotope records; Greenland ice; Forest-fires; Andes; Cap; Glacier; Acids; Snow
ISSN (print) / ISBN
1994-0416
e-ISSN
1994-0424
Zeitschrift
Cryosphere, The
Quellenangaben
Band: 4,
Heft: 4,
Seiten: 561-568
Verlag
European Geosciences Union (EGU) ; Copernicus
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Groundwater Ecology (IGOE)