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Uplift of the Antarctic Continent in Elastic Deformation
https://nipr.repo.nii.ac.jp/records/1021
https://nipr.repo.nii.ac.jp/records/10214aa0cacd-1298-4b7a-a351-7af9c44e001c
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000011565 (2.1 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1979-10-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Uplift of the Antarctic Continent in Elastic Deformation | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Kaminuma, Katsutada
× Kaminuma, Katsutada× Sato, Ryosuke× Suzuki, Yasunori× Matsu'ura, Mitsuhiro |
|||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
著者所属(英) | ||||||
en | ||||||
Geophysical Institute, Faculty of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Geophysical Institute, Faculty of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Geophysical Institute, Faculty of Science, University of Tokyo | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The uplift of the shorelines in snow-free areas of the Antarctic Continent is estimated to be 20-30m and the retreat of the ice sheet to be 10-100km. This paper tries a theoretical interpretation of this uplift in terms of static deformation of an elastic semi-infinite medium or multi-layered medium due to the diminution of the load on the surface. As the forms of load function, which can be regarded as almost the same as the form of the ice sheet, two types of functions are considered as follows : Case I where constant pressure acts on the surface within a circular area, and Case II where pressure varies with the radius of a circular. As the crust and mantle structures, three models (Semi-infinite A, Semi-infinite B, and CANSD) are considered. The uplift is calculated by the difference in vertical displacements between the initial and the final states of the ice sheet. The initial thickness and the radius of ice sheet are denoted by H and a, and the decreases in thickness and radius are denoted by ⊿H and ⊿a, respectively. The observed uplift can be explained by the following either set of H and ⊿H with fixed a (=1700km) and ⊿a (=50km) for the Semi-infinite B and the CANSD models; for Case I, H=2.0km and ⊿H=0-0.1km, and for Case II, H=4.0km and ⊿H=0-0.1km. Reasonable values of H and ⊿H are not obtained for the Semi-infinite A model for both Cases I and II. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733561 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 14, p. 70-82, 発行日 1979-10 |