書誌事項
- タイトル別名
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- Garnet-bearing pelitic schist from the Nago formation in the northern Okinawa Island
- オキナワトウ ホクブ,ナゴソウ ニ サンスル ガン ザクロイシ デイシツヘンガン
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抄録
Garnet-bearing Shimanto pelitic schists occur in the Nago area of north-central Okinawa Island, Japan. The schists consist mainly of phengite, chlorite, quartz, albite, and epidote. They show narrow compositional banding, with bands composed of phengite + chlorite-rich and quartz-rich layers. The banded layers are deformed into isoclinal folds. The garnet occurs as euhedral grains with adjacent pressure shadows of mica and chlorite. The peak pressure-temperature conditions of metamorphism obtained from empirical garnet + muscovite + plagioclase thermobarometry are 4.1-4.6 kbar and 516-568°C, respectively. We propose that these conditions be used as reference values, because of the low almandine content of garnet. This is the first report of garnet-bearing pelitic schist from Okinawa Island.
収録刊行物
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- 地質学雑誌
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地質学雑誌 122 (3), 127-132, 2016-03-15
一般社団法人 日本地質学会
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詳細情報 詳細情報について
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- CRID
- 1390282681216256768
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- NII論文ID
- 130005158297
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- NII書誌ID
- AN00141768
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- ISSN
- 13499963
- 00167630
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- NDL書誌ID
- 027265274
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可