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Superimposed Folding of the Precambrian Metamorphic Rocks of the Lutzow-Holm Bay Region, East Antarctica (Earth Sciences)
https://nipr.repo.nii.ac.jp/records/578
https://nipr.repo.nii.ac.jp/records/578ce929257-5808-4ca2-bd30-ab74c00d9abc
名前 / ファイル | ライセンス | アクション |
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KJ00000011347 (3.5 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1976-03-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Superimposed Folding of the Precambrian Metamorphic Rocks of the Lutzow-Holm Bay Region, East Antarctica (Earth Sciences) | |||||
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) |
ISHIKAWA, Terumi
× ISHIKAWA, Terumi |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Earth Sciences, Faculty of Science, Nagoya University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Lutzow-Holm Bay region (latitude 69°S ; longitude 38°E to 40°E) is located in the Prince Olav Coast of Enderby Land of East Antarctica, where crystalline basement rocks extensively occur under the glacial cover. These basement metamorphic rocks in the Ongul Islands, Langhovde, Breidvagnipa, Skarvsnes, Kjuka and Skallen areas, entirely of Precambrian age, are geologically investigated, and the geologic maps of these areas are presented. In the metamorphic rocks of the Lutzow-Holm Bay region are recognized many phases of deformation during late Precambrian to Paleozoic time ; three major folding events, designated as F_1, F_2, F_3, and fracturing after F_3 are clearly recorded in them. The first folding event, F_1, under the granulite facies metamorphism is characterized by an isoclinal recumbent fold with N-S axial trace. The second folding event, F_2, occurred under the amphibolite facies metamorphism, showing a concentric fold with E-W axial trace. The third event denoted as F_3 took place under a metamorphic condition lower than the amphibolite facies, forming a concentric fold with N-S axial trace. Fracturing associated with an upheaval of the basement after the last phase of folding occurred over the whole region. Discussion is extended to the geological history of this region and the Ross orogeny that had been widespread in the East Antarctic shield. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733470 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Ser. C, Earth sciences 巻 9, p. 1-41, 発行日 1976-03 |