地学雑誌
論説
「点と線」に注目した沈み込み帯の火山とテクトニクス
市原 美恵Claudia ADAMValérie VIDALPablo GROSSE三部 賢治折橋 裕二
著者情報
ジャーナル フリー

126 巻 (2017) 2 号 p. 181-193

詳細
PDFをダウンロード (1830K) 発行機関連絡先
抄録

 Anomalous arc volcanoes tend to exist where a linear topographic feature (fracture zone, line of seamounts, or ridge) on the oceanic plate is subducting. “Dots-and-lines tectonics” are proposed for clarifying this tendency and understanding the mechanisms that generate it. State-of-the-art studies on along-arc variations of volcanism around the Pacific ring of fire and possible effects of inhomogeneities on the subducting oceanic plate are reviewed. Mechanisms generating the clustered distribution of active volcanoes in North-eastern Japan and the extraordinary volcanism at Mount Fuji are reconsidered from a “dots-and-lines” tectonics point of view. Although there still remain many unsolved problems, “dots-and-lines” tectonics could offer a unified explanation of along-arc variations in volcanism, combining processes in mid-ocean ridges, hot spots, and subduction zones.

著者関連情報
© 2017 公益社団法人 東京地学協会
前の記事 次の記事

閲覧履歴
feedback
Top