AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA
Two ^<40>Ar-^<39>Ar and five K-Ar ages and the virtual geomagnetic pole (VGP) were obtained for metadolerite dikes and gneiss at three sites, 1550 Nunatak, Brattnipane and Austkampane of the Sør Rondane Mountains, Antarctica. The radiometric age of 1550 Nunatak was determined to be 440-4...
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Geophysical Institute, Faculty of Science, University of Tokyo
1987
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ftnipr:oai:nipr.repo.nii.ac.jp:00002540 2023-05-15T13:48:59+02:00 AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA Yutaka TAKIGAMI Ichiro KANEOKA Minoru FUNAKI 1987-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2540 http://id.nii.ac.jp/1291/00002540/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2540&item_no=1&attribute_id=18&file_no=1 en eng Geophysical Institute, Faculty of Science, University of Tokyo Earthquake Research Institute, University of Tokyo National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2540 http://id.nii.ac.jp/1291/00002540/ AA1072335X Proceedings of the NIPR Symposium on Antarctic Geosciences, 1, 169-177(1987-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2540&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1987 ftnipr 2022-11-19T19:41:20Z Two ^<40>Ar-^<39>Ar and five K-Ar ages and the virtual geomagnetic pole (VGP) were obtained for metadolerite dikes and gneiss at three sites, 1550 Nunatak, Brattnipane and Austkampane of the Sør Rondane Mountains, Antarctica. The radiometric age of 1550 Nunatak was determined to be 440-450 Ma, which is the youngest one so far reported in this area. The obtained VGP is similar to those estimated from rocks of the other area in Antarctica in Cambrian-Ordovician age, but is different from that reported by J.D.A. ZIJDERVELD (J. Geophys. Res., 73,3773,1968). Report Antarc* Antarctica Geomagnetic Pole National Institute of Polar Research Repository, Japan Sør-Rondane ENVELOPE(25.000,25.000,-72.000,-72.000) Sør Rondane Mountains ENVELOPE(25.000,25.000,-72.000,-72.000) Austkampane ENVELOPE(25.250,25.250,-71.800,-71.800) Brattnipane ENVELOPE(24.533,24.533,-71.883,-71.883) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Two ^<40>Ar-^<39>Ar and five K-Ar ages and the virtual geomagnetic pole (VGP) were obtained for metadolerite dikes and gneiss at three sites, 1550 Nunatak, Brattnipane and Austkampane of the Sør Rondane Mountains, Antarctica. The radiometric age of 1550 Nunatak was determined to be 440-450 Ma, which is the youngest one so far reported in this area. The obtained VGP is similar to those estimated from rocks of the other area in Antarctica in Cambrian-Ordovician age, but is different from that reported by J.D.A. ZIJDERVELD (J. Geophys. Res., 73,3773,1968). |
format |
Report |
author |
Yutaka TAKIGAMI Ichiro KANEOKA Minoru FUNAKI |
spellingShingle |
Yutaka TAKIGAMI Ichiro KANEOKA Minoru FUNAKI AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA |
author_facet |
Yutaka TAKIGAMI Ichiro KANEOKA Minoru FUNAKI |
author_sort |
Yutaka TAKIGAMI |
title |
AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA |
title_short |
AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA |
title_full |
AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA |
title_fullStr |
AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA |
title_full_unstemmed |
AGE AND PALEOMAGNETIC STUDIES FOR INTRUSIVE AND METAMORPHIC ROCKS FROM THE SØR RONDANE MOUNTAINS, ANTARCTICA |
title_sort |
age and paleomagnetic studies for intrusive and metamorphic rocks from the sør rondane mountains, antarctica |
publisher |
Geophysical Institute, Faculty of Science, University of Tokyo |
publishDate |
1987 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2540 http://id.nii.ac.jp/1291/00002540/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2540&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(25.000,25.000,-72.000,-72.000) ENVELOPE(25.000,25.000,-72.000,-72.000) ENVELOPE(25.250,25.250,-71.800,-71.800) ENVELOPE(24.533,24.533,-71.883,-71.883) |
geographic |
Sør-Rondane Sør Rondane Mountains Austkampane Brattnipane |
geographic_facet |
Sør-Rondane Sør Rondane Mountains Austkampane Brattnipane |
genre |
Antarc* Antarctica Geomagnetic Pole |
genre_facet |
Antarc* Antarctica Geomagnetic Pole |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2540 http://id.nii.ac.jp/1291/00002540/ AA1072335X Proceedings of the NIPR Symposium on Antarctic Geosciences, 1, 169-177(1987-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2540&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250277253414912 |