Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1996-09-01 |
タイトル |
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タイトル |
VOLCANIC RECORDS AND DATING OF THE UPPER HALF OF THE H15 ICE CORE FROM MIZUHO PLATEAU, EAST ANTARCTICA |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00003923 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
論文名よみ |
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その他のタイトル |
VOLCANIC RECORDS AND DATING OF THE UPPER HALF OF THE H15 ICE CORE FROM MIZUHO PLATEAU, EAST ANTARCTICA |
著者名よみ |
コウノ, ミカ
フクオカ, タカアキ
フジイ, ヨシユキ
クサカベ, ミノル
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著者名(英) |
KOHNO, Mika
FUKUOKA, Takaaki
FUJII, Yoshiyuki
KUSAKABE, Minoru
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著者所属(英) |
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en |
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Institute for Study of the Earth's Interior, Okayama University |
著者所属(英) |
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en |
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Department of Chemistry, Gakushuin University |
著者所属(英) |
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en |
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National Institute of Polar Research |
著者所属(英) |
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en |
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Institute for Study of the Earth's Interior, Okayama University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Two closely-spaced peaks of electrical conductivity were found at depths between 45 and 50m of the 120-m long ice core drilled at site H 15 in Antarctica by the 32nd Japanese Antarctic Research Expedition in 1991. Chemical analysis of the core containing these peaks revealed that the ice layers were characterized by high acidity and high sulfate concentration suggesting volcanic signals. In order to identify these characteristics, the core was dated using two methods : (1) counting the number of high electrical conductivity peaks resulting from seasonal variations of SO_4^<2-> and NO_3^-, and (2) an empirical model of firn densification. The dating results suggest that the high conductivity is related to deposition of acidic aerosols from the volcanic eruptions of Tambora in 1815 A. D. and of an unknown volcano in 1809 A. D. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10756213 |
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
巻 10,
p. 36-54,
発行日 1996-09
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出版者 |
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出版者 |
National Institute of Polar Research |