Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1978-12-01 |
タイトル |
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言語 |
en |
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タイトル |
Stratigraphic Analysis of Firn and Ice at Mizuho Station |
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 |
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) |
著者名(英) |
Watanabe, Okitsugu
Kato, Kikuo
Satow, Kazuhide
Okuhira, Fumio
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著者所属(英) |
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en |
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Water Research Institute, Nagoya University/Water Research Institute, Nagoya University/Nagaoka Technical College/Gifu Prefectural Institute for Environmental Pollution/The Institute of Low Temperature Science, Hokkaido University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Stratigraphy of the 150-m core from Mizuho Station, Antarctica, is studied with visual observation as well as with analysis of density and oxygen isotope profiles. Stratigraphic structures are well preserved to a depth of 70m. Considerably deviated values of density from the average depth-density curve serve as one of good indicators of the texture of initially deposited snow. From stratigraphic interpretation about 10.6g/(cm)^2 is estimated as the mean annual accumulation. With this value the age of the lowermost part of the 150-m core is estimated to be some 1100 years B. P. excluding the periods of hiatus of annual layers. In the δ^<18>O profile to the depth of 60m, the smallest peak indicating the coldest climate is seen at a depth of 32m which is dated back to some 200 years B.P. Comparison of the δ^<18>O profile in the Mizuho core with that in the Camp Century core indicates that the period of hiatus of annual layers is about one-third of the real duration of the core formation and the mean annual accumulation is about two-thirds of 10.6g/(cm)^2 at Mizuho Station in the past 300 years. |
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 |
AA00733561 |
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue
巻 10,
p. 25-47,
発行日 1978-12
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