A continuous 293-year record of volcanic events in an ice core from Lambert Glacier basin, East Antarctica

Abstract During the 18th Chinese National Antarctic Research Expedition (CHINARE-18, 2001–2002), a 102.18 m ice core was drilled at site LGB69 (70°50′06.6′′S, 77°04′28.9′′E, 1850 m a.s.l., accumulation rate 70 cm yr -1 ), located to the east of the Lambert Glacier basin. This ice core has been analy...

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Bibliographic Details
Published in:Antarctic Science
Main Authors: Li, R.X., Xiao, C.D., Sneed, S.B., Yan, M.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2012
Subjects:
Geology
Ecology, Evolution, Behavior and Systematics
Oceanography
Antarctic
East Antarctica
Lambert Glacier
Antarc*
Antarctic Science
Antarctica
ice core
Online Access:http://dx.doi.org/10.1017/s0954102011000897
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000897
Description
Summary:Abstract During the 18th Chinese National Antarctic Research Expedition (CHINARE-18, 2001–2002), a 102.18 m ice core was drilled at site LGB69 (70°50′06.6′′S, 77°04′28.9′′E, 1850 m a.s.l., accumulation rate 70 cm yr -1 ), located to the east of the Lambert Glacier basin. This ice core has been analysed for chemical composition. Based on the high definition of seasonal variations of major ions, the ice core was dated to cover 293 years ( ad 1708–2001), with errors at the bottom end within ± 2 years. The non-sea salt SO 4 2- time series provides a proxy for historical volcanic eruptions preserved in the core, and high non-sea salt SO 4 2- concentrations are well correlated to some documented volcanic events, such as Tambora ( ad 1815), Cosiguina ( ad 1835), Krakatoa ( ad 1883) and Tarawera ( ad 1886).

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