Characteristics of salt inclusions in polar ice from Dome Fuji, East Antarctica

Ohno, Hiroshi; Igarashi, Makoto; Hondoh, Takeo

Characteristics of salt inclusions in polar ice from Dome Fuji, East Antarctica

Ohno, Hiroshi; Igarashi, Makoto; Hondoh, Takeo

GEOPHYSICAL RESEARCH LETTERS, 2006, 33(8), Art. No. L08501-Art. No. L08501

Permalink : https://hdl.handle.net/2115/14419

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アクセス権	open access
URI	https://hdl.handle.net/2115/14419
タイトル	Characteristics of salt inclusions in polar ice from Dome Fuji, East Antarctica
著者	Ohno, Hiroshi ; Igarashi, Makoto ; Hondoh, Takeo
著者名 Ohno, Hiroshi
著者名 Igarashi, Makoto
e-Rad_Researcher 60109494 著者名 Hondoh, Takeo
言語	英語
キーワード	SOLUBLE IMPURITIES
キーワード	CORE
発行日	2006-04-25
出版者	American Geophysical Union
収録物名	GEOPHYSICAL RESEARCH LETTERS
巻(号)	33(8)
ページ	Art. No. L08501-Art. No. L08501
抄録	We studied the depth profile of the chemical properties, number concentration and average diameter of micro-inclusions in Antarctic ice from Dome Fuji. Analysis of the data indicated that the distribution of inclusions was not significantly modified during ice sheet flow, although a main constituent Na2SO4 center dot 10H(2)O changed into another solid phase in the deep ice. In the chemical form, sodium sulfate and magnesium sulfate were dominant in the interglacial and early-glacial ice, but were not detected in the glacial-maximum ice. Instead, the sulfate in the glacial-maximum ice was mainly in the form of calcium sulfate. This is strong support for the hypothesis that the neutralization regime of acid aerosols in the atmosphere and snowpack dramatically changed from chemical reaction with sea salt to that with dust during glacial maxima.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0094-8276
関連情報	URI http://www.agu.org/
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1029/2006GL025774