論文

査読有り 筆頭著者 国際共著 国際誌
2015年

Topographic expression of the Danger Islands Troughs and implications for the tectonic evolution of the Manihiki Plateau, western equatorial Pacifi c Ocean

Special Paper of the Geological Society of America
  • Masao Nakanishi
  • ,
  • Yasuyuki Nakamura
  • ,
  • Millard F. Coffin
  • ,
  • Kaj Hoernle
  • ,
  • Reinhard Werner

511
開始ページ
195
終了ページ
220
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1130/2015.2511(11)
出版者・発行元
Geological Society of America

The Manihiki Plateau in the western equatorial Pacifi c Ocean is a Cretaceous Large Igneous Province. Several studies have proposed that the Manihiki Plateau was formed by the same mantle plume that formed the Ontong Java and Hikurangi plateaus ca. 125 Ma. Recent multibeam bathymetric surveys of the Manihiki Plateau reveal the morphology of the Danger Islands Troughs (DIT), Suvarov Trough, which are systems of deep troughs within the plateau. The troughs divide the Manihiki Plateau into three distinct provinces, the North Plateau, the Western Plateaus, and the High Plateau. The DIT between the High Plateau and Western Plateaus comprises four en echelon troughs. With one exception, all segments of the DIT are bordered by steep escarpments, to 1500 m high. The basins of the DIT are smooth. Elongated northeast-southwest-striking scarps are common in the southernmost DIT and at the junction between the DIT and Suvarov Trough. The features revealed by the new bathymetric data indicate that a sinistral strike-slip tectonic environment formed the DIT during the break-up into the Manihiki and Hikurangi plateaus, whereas the Suvarov Trough developed after the formation of the DIT.

リンク情報
DOI
https://doi.org/10.1130/2015.2511(11)
URL
http://orcid.org/0000-0003-3433-9662
ID情報
  • DOI : 10.1130/2015.2511(11)
  • ISSN : 0072-1077
  • ORCIDのPut Code : 60212733
  • SCOPUS ID : 84937693051
  • ORCIDで取得されたその他外部ID : a:1:{i:0;a:1:{s:4:"isbn";s:13:"9780813725116";}}

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