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Author

Kyoko Okino

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Open access Oct 2026

Tectonic Evolution of the Mariana Trough

The Mariana Trough is an active back‐arc basin formed by subduction of the Pacific Plate beneath the Philippine Sea Plate and provides an ideal setting for investigating the evolution of back‐arc basins. In this study, we compile bathymetric, magnetic, and gravity data to reconstruct the formation history of the enti...

Seitaro Ono, Kyoko Okino, N. Seama et al. · 0 citations
Review Open access Sep 2026

Full-ocean-depth EM124 mapping of the Challenger Deep by R/V Hakuho-maru and depth-estimate sensitivity tests

The Challenger Deep in the Mariana Trench is the deepest known point on Earth, yet recent depth estimates still differ by several meters because of environmental and instrumental uncertainties. Here we present a new full-ocean-depth multibeam bathymetric dataset collected with a Kongsberg EM124 echosounder aboard R/V H...

M. Fujii, Chiori Tamura, Yasuhiko Ohara et al. · 0 citations

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