論文

査読有り
2016年3月

Submarine lava fields in French Polynesia

Marine Geology
  • Hirano, N
  • ,
  • Nakanishi, M
  • ,
  • Abe, N
  • ,
  • Machida, S

373
開始ページ
39
終了ページ
48
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.margeo.2016.01.002
出版者・発行元
ELSEVIER SCIENCE BV

Shipboard multibeam survey is powerful tool to locate submarine volcanoes especially having small volume. Small submarine volcanoes may represent the initial stages of hotspot activity, but they may also form via litho spheric flexing, regional convection of the mantle, and the presence of fracture zones. Here we describe several volcanoes, flood lavas, and volcanic clusters in French Polynesia using data from archives of multibeam data. The clusters of small volcanoes are similar to petit-spots, and they are not considered to represent the initial stages of a hotspot as they are composed of both young and old edifices, and because the sites are located far from any known hotspot. These newly discovered submarine volcanoes are located in areas with low-velocity seismic shear waves at depths of 60 and 100 km. These lava fields will therefore facilitate geochemical mapping of the mantle in areas unrelated to hotspots, because these lavas may have developed from melts in the shallow mantle beneath French Polynesia. (C) 2016 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.margeo.2016.01.002
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000371364700004&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.margeo.2016.01.002
  • ISSN : 0025-3227
  • eISSN : 1872-6151
  • ORCIDのPut Code : 81312435
  • Web of Science ID : WOS:000371364700004

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