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

被引：10
|
作者：
Li, R. X. [1 ]
Xiao, C. D. [1 ,2 ]
Sneed, S. B. [3 ]
Yan, M. [4 ]
机构：
[1] China Meteorol Adm, Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
[2] Chinese Acad Sci, State Key Lab Cryospher Sci, CARREERI, Lanzhou 730000, Peoples R China
[3] Univ Maine, Climate Change Inst, Orono, ME 04469 USA
[4] Polar Res Inst China, Shanghai 200136, Peoples R China
来源：
ANTARCTIC SCIENCE | 2012年 / 24卷 / 03期
基金：
中国国家自然科学基金;
关键词：
ice core dating; non-sea salt sulphate; Princess Elizabeth Land; volcanic activity; EXPLOSIVE VOLCANISM; GREENLAND; ERUPTION; CLIMATE; SNOW; DOME;
D O I：
10.1017/S0954102011000897
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
During the 18th Chinese National Antarctic Research Expedition (CHINARE-18, 2001-2002), a 102.18m ice core was drilled at site LGB69 (70 degrees 50'06.6 '' S, 77 degrees 04'28.9 '' E, 1850m 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 SO42- time series provides a proxy for historical volcanic eruptions preserved in the core, and high non-sea salt SO42- concentrations are well correlated to some documented volcanic events, such as Tambora (AD 1815), Cosiguina (AD 1835), Krakatoa (AD 1883) and Tarawera (AD 1886).
引用
收藏
页码：293 / 298
页数：6
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