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フルテキストURLKJ00000199490.pdf ( 854.8KB ) 公開日 2010-04-19
タイトル<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
タイトル別表記Quantitative analyses of F and Cl in apatite : Implication for origin of apatite in meta-ultramafic rock from Tonagh Island in Napier Complex, East Antarctica
作成者大和田, 正明
森福, 洋二
作成者ヨミオオワダ, マサアキ
モリフク, ヨウジ
作成者別表記Owada, Masaaki
Morifuku, Yoji
作成者所属山口大学機器分析センター
内容記述(抄録等)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.
本文言語jpn
資料タイプtext
ファイル形式application/pdf
出版者山口大学機器分析センター
出版者ヨミヤマグチ ダイガク キキ ブンセキ センター
NII資料タイプ紀要論文
NCIDAN1046804X
学内刊行物(紀要等)山口大学機器分析センター報告
掲載誌名山口大学機器分析センター報告
掲載誌名別表記Center of Instrumental Analysis, Yamaguchi University
9
開始ページ19
終了ページ26
発行日2001
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00000199490
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00000199490