Holocene volcanic history as recorded in the sulfate stratigraphy of the European Project for Ice Coring in Antarctica Dome C (EDC96) ice core

E. Castellano, S. Becagli, M. Hansson, M. Hutterli, J. R. Petit, Michael Rampino, M. Severi, J. P. Steffensen, R. Traversi, R. Udisti

Research output: Contribution to journalArticle

Abstract

A detailed history of Holocene volcanism was reconstructed using the sulfate record of the European Project for Ice Coring in Antarctica Dome C (EDC96) ice core. This first complete Holocene volcanic record from an Antarctic core provides a reliable database to compare with long records from Antarctic and Greenland ice cores. A threshold method based on statistical treatment of the lognormal sulfate flux distribution was used to differentiate volcanic sulfate spikes from sulfate background concentrations. Ninety-six eruptions were identified in the EDC96 ice core during the Holocene, with a mean of 7.9 events per millennium. The frequency distribution (events per millennium) showed that the last 2000 years were a period of enhanced volcanic activity. EDC96 volcanic signatures for the last millennium are in good agreement with those recorded in other Antarctic ice cores. For older periods, comparison is in some cases less reliable, mainly because of dating uncertainties. Sulfate depositional fluxes of individual volcanic events vary greatly among the different cores. A volcanic flux normalization (volcanic flux/ Tambora flux ratio) was used to evaluate the relative intensity of the same event recorded at different sites in the last millennium. Normalized flux variability for the same event showed the highest value in the 1100-1500 AD period. This pattern could mirror changes in regional transport linked to climatic variations such as slight warming stages in the Southern Hemisphere (Southern Hemisphere Medieval Warming-like period?).

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalJournal of Geophysical Research: Space Physics
Volume110
Issue number6
DOIs
StatePublished - Mar 27 2005

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Stratigraphy
stratigraphy
Ice
Domes
Antarctic regions
domes
ice core
Sulfates
dome
volcanology
sulfates
ice
Holocene
histories
Fluxes
sulfate
history
Southern Hemisphere
warming
Medieval

ASJC Scopus subject areas

  • Oceanography
  • Astronomy and Astrophysics
  • Atmospheric Science
  • Space and Planetary Science
  • Earth and Planetary Sciences (miscellaneous)
  • Geophysics
  • Geochemistry and Petrology

Cite this

Holocene volcanic history as recorded in the sulfate stratigraphy of the European Project for Ice Coring in Antarctica Dome C (EDC96) ice core. / Castellano, E.; Becagli, S.; Hansson, M.; Hutterli, M.; Petit, J. R.; Rampino, Michael; Severi, M.; Steffensen, J. P.; Traversi, R.; Udisti, R.

In: Journal of Geophysical Research: Space Physics, Vol. 110, No. 6, 27.03.2005, p. 1-12.

Research output: Contribution to journalArticle

Castellano, E. ; Becagli, S. ; Hansson, M. ; Hutterli, M. ; Petit, J. R. ; Rampino, Michael ; Severi, M. ; Steffensen, J. P. ; Traversi, R. ; Udisti, R. / Holocene volcanic history as recorded in the sulfate stratigraphy of the European Project for Ice Coring in Antarctica Dome C (EDC96) ice core. In: Journal of Geophysical Research: Space Physics. 2005 ; Vol. 110, No. 6. pp. 1-12.
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