<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源
The Napier Complex, East Antarctica is one of the oldest Archaean terrane in the world. Tonagh Island is located in the southern end of Amundsen Bay. Mafic gneisses and meta-ultramafic rocks are exposed on Tonagh Island. The meta-ultramafic rock that is located at the northeastern part of the island...
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山口大学機器分析センター
2001
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ftyamaguchiuniv:oai:petit.lib.yamaguchi-u.ac.jp:G0000006y2j2:KJ00000199490 2023-05-15T13:22:47+02:00 <研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 大和田, 正明 森福, 洋二 2001 http://petit.lib.yamaguchi-u.ac.jp/14779 http://petit.lib.yamaguchi-u.ac.jp/14779/files/148726 jpn unknown 山口大学機器分析センター departmental bulletin paper 2001 ftyamaguchiuniv 2023-01-06T00:52:18Z The Napier Complex, East Antarctica is one of the oldest Archaean terrane in the world. Tonagh Island is located in the southern end of Amundsen Bay. Mafic gneisses and meta-ultramafic rocks are exposed on Tonagh Island. The meta-ultramafic rock that is located at the northeastern part of the island cuts the layers or foliations of neighboring quartzo-feldspathic gneisses, suggesting that the meta-ultramafic rock was originally intrusive rock. The meta-ultramafic rock consists mainly of olivine, clinopyroxene, orthopyroxene and hornblede. Subhedral apatite is included in olivine. Major and trace element compositions of the meta-ultramafic rock resemble those of komatiitic rocks from the Archaean greenstone belts. Chondrite normalized REE pattern for the meta-ultramafic rock shows enrichment in LREE. Quantitative analyses of F and Cl were done for the apatite in the meta-ultramafic rock. F and Cl contents of the apatite revealed that the apatite was directly crystallized from komatiitic melt. An apatite is regareded as a main container for LREE in the upper mantle. Both LREE-enriched and -depleted types of komatiitic rocks are exposed on the Archaean continents. Therefore, an apatite component may play an important role to understand the petrogenesis of Archaean komatiitic rocks. Report Amundsen Bay Antarc* Antarctica East Antarctica Tonagh Island YUNOCA - Yamaguchi University Navigator for Open access Collection and Archives Amundsen Bay ENVELOPE(50.000,50.000,-66.917,-66.917) East Antarctica Napier ENVELOPE(-58.440,-58.440,-62.167,-62.167) Tonagh Island ENVELOPE(50.333,50.333,-67.117,-67.117) |
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Open Polar |
collection |
YUNOCA - Yamaguchi University Navigator for Open access Collection and Archives |
op_collection_id |
ftyamaguchiuniv |
language |
unknown |
description |
The Napier Complex, East Antarctica is one of the oldest Archaean terrane in the world. Tonagh Island is located in the southern end of Amundsen Bay. Mafic gneisses and meta-ultramafic rocks are exposed on Tonagh Island. The meta-ultramafic rock that is located at the northeastern part of the island cuts the layers or foliations of neighboring quartzo-feldspathic gneisses, suggesting that the meta-ultramafic rock was originally intrusive rock. The meta-ultramafic rock consists mainly of olivine, clinopyroxene, orthopyroxene and hornblede. Subhedral apatite is included in olivine. Major and trace element compositions of the meta-ultramafic rock resemble those of komatiitic rocks from the Archaean greenstone belts. Chondrite normalized REE pattern for the meta-ultramafic rock shows enrichment in LREE. Quantitative analyses of F and Cl were done for the apatite in the meta-ultramafic rock. F and Cl contents of the apatite revealed that the apatite was directly crystallized from komatiitic melt. An apatite is regareded as a main container for LREE in the upper mantle. Both LREE-enriched and -depleted types of komatiitic rocks are exposed on the Archaean continents. Therefore, an apatite component may play an important role to understand the petrogenesis of Archaean komatiitic rocks. |
format |
Report |
author |
大和田, 正明 森福, 洋二 |
spellingShingle |
大和田, 正明 森福, 洋二 <研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
author_facet |
大和田, 正明 森福, 洋二 |
author_sort |
大和田, 正明 |
title |
<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
title_short |
<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
title_full |
<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
title_fullStr |
<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
title_full_unstemmed |
<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
title_sort |
<研究報告>アパタイト中のフッ素と塩素の定量, 東南極ナピア岩体トナー島産の変成超苦鉄質岩中のアパタイトの起源 |
publisher |
山口大学機器分析センター |
publishDate |
2001 |
url |
http://petit.lib.yamaguchi-u.ac.jp/14779 http://petit.lib.yamaguchi-u.ac.jp/14779/files/148726 |
long_lat |
ENVELOPE(50.000,50.000,-66.917,-66.917) ENVELOPE(-58.440,-58.440,-62.167,-62.167) ENVELOPE(50.333,50.333,-67.117,-67.117) |
geographic |
Amundsen Bay East Antarctica Napier Tonagh Island |
geographic_facet |
Amundsen Bay East Antarctica Napier Tonagh Island |
genre |
Amundsen Bay Antarc* Antarctica East Antarctica Tonagh Island |
genre_facet |
Amundsen Bay Antarc* Antarctica East Antarctica Tonagh Island |
_version_ |
1766366980949934080 |