書誌事項
- タイトル別名
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- Have the Japanese Islands Grown?: Five "Japan"s Were Born, and Four "Japan"s Subducted into the Mantle
- ニホン レットウ ノ タイリク チカク ワ セイチョウ シタ ノ カ イツツ ノ ニホン ガ ウマレ ヨッツ ノ ニホン ガ シズミ コミ ショウシツ シタ
- Have the Japanese islands grown?: five “Japan”s were born, and four “Japan”s were subducted into the mantle
- Five “Japan”s Were Born, and Four “Japan”s Subducted into the Mantle
- ―5つの日本が生まれ，4つの日本が沈み込み消失した―
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説明
The Japanese Islands have long been considered to be the most evolved of all the island arcs in the oceans. A simple scenario has been implicitly accepted for the growth of the Japanese Islands: since subduction started sometime around 520 Ma, the TTG crust has increased over time in association with the steady-state growth of the accretionary prism in front. Here, we show very different dynamic growths of TTG crusts over time than previously thought, i.e., four times more TTG crusts than at present must have gone into the deep mantle due to tectonic erosion, which occurred six times since subduction was initiated at 520 Ma. Tectonic erosion is a major process that has controlled the development history of the Japanese islands. It can be traced as a serpentinite mélange belt, which indicates the upper boundary of past extensive tectonic erosion.
収録刊行物
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- 地学雑誌
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地学雑誌 119 (6), 1173-1196, 2010
公益社団法人 東京地学協会
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詳細情報 詳細情報について
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- CRID
- 1390282679207539072
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- NII論文ID
- 10030371469
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- NII書誌ID
- AN00322536
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- ISSN
- 18840884
- 0022135X
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- NDL書誌ID
- 10979319
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- 本文言語コード
- ja
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