Solid Earth
Solid Earth
SE
Articles | Volume 11, issue 1
Articles | Volume 11, issue 1
https://doi.org/10.5194/se-11-23-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-11-23-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 1
Research article
 | 
07 Jan 2020
Research article |  | 07 Jan 2020

Alkali basalt from the Seifu Seamount in the Sea of Japan: post-spreading magmatism in a back-arc setting

Tomoaki Morishita, Naoto Hirano, Hirochika Sumino, Hiroshi Sato, Tomoyuki Shibata, Masako Yoshikawa, Shoji Arai, Rie Nauchi, and Akihiro Tamura

Viewed

Total article views: 4,661 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
3,138 1,377 146 4,661 138 182
  • HTML: 3,138
  • PDF: 1,377
  • XML: 146
  • Total: 4,661
  • BibTeX: 138
  • EndNote: 182
Views and downloads (calculated since 25 Jul 2019)
Cumulative views and downloads (calculated since 25 Jul 2019)

Viewed (geographical distribution)

Total article views: 4,661 (including HTML, PDF, and XML) Thereof 3,843 with geography defined and 818 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 29 Jan 2026
Download
Short summary
We report a peridotite xenolith-bearing basalt dredged from the Seifu Seamount (SSM basalt) in the northeast Tsushima Basin, southwest Sea of Japan, which is one of the western Pacific back-arc basin swarms. An 40Ar / 39Ar plateau age of 8.33 ± 0.15 Ma (2 σ) was obtained for the SSM basalt, indicating that it erupted shortly after the termination of back-arc spreading. The SSM basalt was formed in a post-back-arc extension setting by the low-degree partial melting of an upwelling asthenosphere.
Read more
Share