A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract)
Recent studies of the tectonic-metamorphic history of the Lutzow-Holmbukta region are critically reviewed and summarized as follows. First event (ca. 1900 Ma ago) is the high-pressure granulite facies metamorphism with recumbent and isoclinal folds. Second event (ca. 1100Ma ago) is the intermediate...
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Department of Geosciences, Faculty of Science, Osaka City University/Institute of Geology and Mineralogy, Faculty of Science, Hiroshima University/Muroran Institute of Technology/Mining College, Akita University/Department of Oceanography, Ryukyu University
1983
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ftnipr:oai:nipr.repo.nii.ac.jp:00001478 2023-05-15T13:47:59+02:00 A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) Masaru Yoshida Morihisa Suzuki Hiroshi Shirahata Hideyasu Kojima Koshiro Kizaki 1983-10 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1478 http://id.nii.ac.jp/1291/00001478/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1478&item_no=1&attribute_id=18&file_no=1 en eng Department of Geosciences, Faculty of Science, Osaka City University/Institute of Geology and Mineralogy, Faculty of Science, Hiroshima University/Muroran Institute of Technology/Mining College, Akita University/Department of Oceanography, Ryukyu University https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1478 http://id.nii.ac.jp/1291/00001478/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 28, 215(1983-10) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1478&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1983 ftnipr 2022-11-12T19:42:17Z Recent studies of the tectonic-metamorphic history of the Lutzow-Holmbukta region are critically reviewed and summarized as follows. First event (ca. 1900 Ma ago) is the high-pressure granulite facies metamorphism with recumbent and isoclinal folds. Second event (ca. 1100Ma ago) is the intermediate pressure granulite facies metamorphism and charnockite formation probably associated with some folding tectionics. Third event (ca. 560Ma ago or earlier) is the high amphibolite facies metamorphism associated with E-W upright foldings. Fourth event (ca. 460Ma ago) is the low amphibolite facies metamorphism associated with N-S upright folds and faults and pink granite intrusion, succeeded by the greenschist facies or slightly lower grade metamorphism. Fifth event (Jurassic?) is the fracturing under stress field with N-S maximum extensional axis. Some problems and alternative explanations are briefly discussed with conclusions that there remain some problems on the preferred metamorphic-tectonic history. Report Antarc* Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan East Antarctica |
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National Institute of Polar Research Repository, Japan |
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language |
English |
description |
Recent studies of the tectonic-metamorphic history of the Lutzow-Holmbukta region are critically reviewed and summarized as follows. First event (ca. 1900 Ma ago) is the high-pressure granulite facies metamorphism with recumbent and isoclinal folds. Second event (ca. 1100Ma ago) is the intermediate pressure granulite facies metamorphism and charnockite formation probably associated with some folding tectionics. Third event (ca. 560Ma ago or earlier) is the high amphibolite facies metamorphism associated with E-W upright foldings. Fourth event (ca. 460Ma ago) is the low amphibolite facies metamorphism associated with N-S upright folds and faults and pink granite intrusion, succeeded by the greenschist facies or slightly lower grade metamorphism. Fifth event (Jurassic?) is the fracturing under stress field with N-S maximum extensional axis. Some problems and alternative explanations are briefly discussed with conclusions that there remain some problems on the preferred metamorphic-tectonic history. |
format |
Report |
author |
Masaru Yoshida Morihisa Suzuki Hiroshi Shirahata Hideyasu Kojima Koshiro Kizaki |
spellingShingle |
Masaru Yoshida Morihisa Suzuki Hiroshi Shirahata Hideyasu Kojima Koshiro Kizaki A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) |
author_facet |
Masaru Yoshida Morihisa Suzuki Hiroshi Shirahata Hideyasu Kojima Koshiro Kizaki |
author_sort |
Masaru Yoshida |
title |
A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) |
title_short |
A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) |
title_full |
A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) |
title_fullStr |
A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) |
title_full_unstemmed |
A review of the tectonic and metamorphic history of the region around Lutzow-Holmbunta, East Antarctica (abstract) |
title_sort |
review of the tectonic and metamorphic history of the region around lutzow-holmbunta, east antarctica (abstract) |
publisher |
Department of Geosciences, Faculty of Science, Osaka City University/Institute of Geology and Mineralogy, Faculty of Science, Hiroshima University/Muroran Institute of Technology/Mining College, Akita University/Department of Oceanography, Ryukyu University |
publishDate |
1983 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1478 http://id.nii.ac.jp/1291/00001478/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1478&item_no=1&attribute_id=18&file_no=1 |
geographic |
East Antarctica |
geographic_facet |
East Antarctica |
genre |
Antarc* Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctica East Antarctica Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1478 http://id.nii.ac.jp/1291/00001478/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 28, 215(1983-10) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1478&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248279060774912 |