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A 12,000 Year Record of Explosive Volcanism in the Siple Dome Ice Core, West Antarctica
Journal of Geophysical Research-Atmospheres
  • Andrei V. Kurbatov, University of Maine - Main
  • G. A. Zelinski, University of Maine - Main
  • N. W. Dunbar
  • Paul Andrew Mayewski, University of Maine - Main
  • E. A. Meyerson
  • Sharon B. Sneed, University of Maine - Main
  • K. C. Taylor
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Abstract/ Summary
Air mass trajectories in the Southern Hemisphere provide a mechanism for transport to and deposition of volcanic products on the Antarctic ice sheet from local volcanoes and from tropical and subtropical volcanic centers. This study extends the detailed record of Antarctic, South American, and equatorial volcanism over the last 12,000 years using continuous glaciochemical series developed from the Siple Dome A (SDMA) ice core, West Antarctica. The largest volcanic sulfate spike ( 280 mu g/L) occurs at 5881 B. C. E. Other large signals with unknown sources are observed around 325 B. C. E. ( 270 mu g/L) and 2818 B. C. E. ( 191 mu g/L). Ages of several large equatorial or Southern Hemisphere volcanic eruptions are synchronous with many sulfate peaks detected in the SDMA volcanic ice chemistry record. The microprobe "fingerprinting'' of glass shards in the SDMA core points to the following Antarctic volcanic centers as sources of tephra found in the SDMA core: Balenny Island, Pleiades, Mount Berlin, Mount Takahe, and Mount Melbourne as well as Mount Hudson and possibly Mount Burney volcanoes of South America. Identified volcanic sources provide an insight into the poorly resolved transport history of volcanic products from source volcanoes to the West Antarctic ice sheet.
Citation/Publisher Attribution
Kurbatov, AV, Zielinski, GA, Dunbar, NW, Mayewski, PA, Meyerson, EA, Sneed, SB, and Taylor, KC, 2006, A 12,000 Year Record of Explosive Volcanism in the Siple Dome Ice Core, West Antarctica: Journal of Geophysical Research-Atmospheres, v. 111, D12307. To view the published open abstract, go to and enter the DOI.
Publisher Statement
© Copyright 2006 American Geophysical Union
publisher's version of the published document
Citation Information
Andrei V. Kurbatov, G. A. Zelinski, N. W. Dunbar, Paul Andrew Mayewski, et al.. "A 12,000 Year Record of Explosive Volcanism in the Siple Dome Ice Core, West Antarctica" Journal of Geophysical Research-Atmospheres Vol. 111 (2006)
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