Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica
The K-Ar age determination on micas from the metamorphic rocks and granites in the Ongul Islands and Lang Hovde areas gave the following results: Metabasites 463, 467, 515, 517, 533 and 539 m.y. Biotite gneiss 560 m.y. Hornblende gneiss 485 m.y. Microcline granite 399 m.y. Biotite from microcline gr...
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| Format: | Article in Journal/Newspaper |
| Language: | English Japanese |
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National Institute of Polar Research
1974
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| Online Access: | https://doi.org/10.15094/00007731 https://doaj.org/article/d02bb6383e1f43f7bc4758075cea10ca |
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ftdoajarticles:oai:doaj.org/article:d02bb6383e1f43f7bc4758075cea10ca 2023-05-15T13:48:35+02:00 Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica Keizo YANAI Yoshio UEDA 1974-01-01T00:00:00Z https://doi.org/10.15094/00007731 https://doaj.org/article/d02bb6383e1f43f7bc4758075cea10ca EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00007731 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007731 0085-7289 2432-079X https://doaj.org/article/d02bb6383e1f43f7bc4758075cea10ca Antarctic Record, Iss 48, Pp 70-81 (1974) Geography (General) G1-922 article 1974 ftdoajarticles https://doi.org/10.15094/00007731 2022-12-31T01:51:29Z The K-Ar age determination on micas from the metamorphic rocks and granites in the Ongul Islands and Lang Hovde areas gave the following results: Metabasites 463, 467, 515, 517, 533 and 539 m.y. Biotite gneiss 560 m.y. Hornblende gneiss 485 m.y. Microcline granite 399 m.y. Biotite from microcline granite shows the youngest age in the areas of the report. This age agrees well with the field evidence that the granites are discordant dikes in the metamorphic rocks. On the basis of the ages hitherto determined for the metamorphic and granitic rocks in the Liitzow-Holm Bay coast and the Yamato Mountains some considerations are given to the metamorphic events. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Directory of Open Access Journals: DOAJ Articles East Antarctica Syowa Station Yamato ENVELOPE(35.583,35.583,-71.417,-71.417) Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Hovde ENVELOPE(19.974,19.974,69.243,69.243) |
| institution |
Open Polar |
| collection |
Directory of Open Access Journals: DOAJ Articles |
| op_collection_id |
ftdoajarticles |
| language |
English Japanese |
| topic |
Geography (General) G1-922 |
| spellingShingle |
Geography (General) G1-922 Keizo YANAI Yoshio UEDA Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica |
| topic_facet |
Geography (General) G1-922 |
| description |
The K-Ar age determination on micas from the metamorphic rocks and granites in the Ongul Islands and Lang Hovde areas gave the following results: Metabasites 463, 467, 515, 517, 533 and 539 m.y. Biotite gneiss 560 m.y. Hornblende gneiss 485 m.y. Microcline granite 399 m.y. Biotite from microcline granite shows the youngest age in the areas of the report. This age agrees well with the field evidence that the granites are discordant dikes in the metamorphic rocks. On the basis of the ages hitherto determined for the metamorphic and granitic rocks in the Liitzow-Holm Bay coast and the Yamato Mountains some considerations are given to the metamorphic events. |
| format |
Article in Journal/Newspaper |
| author |
Keizo YANAI Yoshio UEDA |
| author_facet |
Keizo YANAI Yoshio UEDA |
| author_sort |
Keizo YANAI |
| title |
Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica |
| title_short |
Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica |
| title_full |
Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica |
| title_fullStr |
Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica |
| title_full_unstemmed |
Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica |
| title_sort |
absolute ages and geological investigations on the rocks in the area of around syowa station, east antarctica |
| publisher |
National Institute of Polar Research |
| publishDate |
1974 |
| url |
https://doi.org/10.15094/00007731 https://doaj.org/article/d02bb6383e1f43f7bc4758075cea10ca |
| long_lat |
ENVELOPE(35.583,35.583,-71.417,-71.417) ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(19.974,19.974,69.243,69.243) |
| geographic |
East Antarctica Syowa Station Yamato Ongul Hovde |
| geographic_facet |
East Antarctica Syowa Station Yamato Ongul Hovde |
| genre |
Antarc* Antarctica East Antarctica |
| genre_facet |
Antarc* Antarctica East Antarctica |
| op_source |
Antarctic Record, Iss 48, Pp 70-81 (1974) |
| op_relation |
https://doi.org/10.15094/00007731 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007731 0085-7289 2432-079X https://doaj.org/article/d02bb6383e1f43f7bc4758075cea10ca |
| op_doi |
https://doi.org/10.15094/00007731 |
| _version_ |
1766249459208945664 |