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DOI	10.3724/SP.J.1226.2019.00050
	Accumulation and geochemical evidence for the Little Ice Age episode in eastern Antarctica
	Li, ChuanJin; Re, JiaWen; Xiao, CunDe; Ding, MingHu; Xie, AiHong; Du, ZhiHeng; Ma, XiangYu; Qin, DaHe
发表日期	2019
ISSN	1674-3822
起始页码	50
结束页码	61
卷号	11 期号:1
英文摘要	Data on accumulation and concentration of chemical compounds recorded in an essentially unexplored area (Dome Argus ) of the Indian Ocean sector of eastern Antarctica during the past 2,680 years (680 B.C. to 1999 A.D.) are presented. During the first 1,700 years (680 B.C. to 1000 A.D.), the accumulation data shows a slightly decreasing trend, while chemical ions appear to be stable, representing a stable climatic condition. An intensive increasing trend of the accumulation occurred during the 12th to 14th century. The period from 15th to 19th century was characterized by a rapid reducing accumulation and concentrations of volatile compounds suffering post-depositional loss linked to sparse precipitation amount, which was temporally consistent with the Little Ice Age (LIA) episode. Comparison between observed accumulation rates with other eastern Antarctic ice cores show a consistent decreasing trend during LIA, while sea salt and dust-originated ions increased due to sea ice extent and intensified atmospheric transportation. Distribution of volcanic originated sulfate over the Antarctic continent show a significant change during the 15th century, coincident with the onset of the LIA. These results are important for the assessment of Antarctic continent mass balance and associated interpretation of the Dome A deep ice core records.
英文关键词	accumulation rates; sea salt; chemical compounds; Little Ice Age; eastern Antarctica
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
来源期刊	SCIENCES IN COLD AND ARID REGIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158806
作者单位	Li, CJ (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Li, ChuanJin,Re, JiaWen,Xiao, CunDe,et al. Accumulation and geochemical evidence for the Little Ice Age episode in eastern Antarctica[J],2019,11(1).
APA	Li, ChuanJin.,Re, JiaWen.,Xiao, CunDe.,Ding, MingHu.,Xie, AiHong.,...&Qin, DaHe.(2019).Accumulation and geochemical evidence for the Little Ice Age episode in eastern Antarctica.SCIENCES IN COLD AND ARID REGIONS,11(1).
MLA	Li, ChuanJin,et al."Accumulation and geochemical evidence for the Little Ice Age episode in eastern Antarctica".SCIENCES IN COLD AND ARID REGIONS 11.1(2019).