書誌事項
- タイトル別名
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- K-Ar dating of hydrothermal alteration of the Yorii welded tuffs in the northeastern Kanto Mountains.
- カントウ サンチ ホクトウエンブ ヨリイ ヨウケツ ギョウカイガンルイ ノ ネッスイ ヘンシツ K Ar ネンダイ
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抄録
Yorii welded tuffs in the northeastern Kanto Mountains are penetratively crushed and strongly hydrothermally altered. They are younger constituents of the Atokura Nappe and their ages indicate the lower limit of the time when the Atokura Nappe thrusted up on the Sanbagawa belt.The whole rock K-Ar ages of the altered Yorii welded tuffs give 58.0±2.9 Ma which is consistent with zircon FT age (59.6 Ma). This suggests that the hydrothermal alteration followed the formation of welded tuffs at the last stage of cooling process. After this hydrothermal alteration, the Yorii welded tuffs thrusted up on the Sanbagawa belt.
収録刊行物
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- 地質学雑誌
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地質学雑誌 106 (8), 574-577, 2000
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
- 1390282681210846208
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- NII論文ID
- 110003013135
- 10008701019
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- NII書誌ID
- AN00141768
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- COI
- 1:CAS:528:DC%2BD3cXmt1Smtr0%3D
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- ISSN
- 13499963
- 00167630
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- NDL書誌ID
- 5466004
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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
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- 抄録ライセンスフラグ
- 使用不可