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- Naoto Hirano
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Eiichi Takahashi
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Junji Yamamoto
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Natsue Abe
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Stephanie P. Ingle
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Ichiro Kaneoka
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Takafumi Hirata
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Jun-Ichi Kimura
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Teruaki Ishii
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Yujiro Ogawa
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Shiki Machida
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
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- Kiyoshi Suyehiro
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152–8551, Japan.
書誌事項
- 公開日
- 2006-09-08
- 資源種別
- journal article
- DOI
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- 10.1126/science.1128235
- 公開者
- American Association for the Advancement of Science (AAAS)
この論文をさがす
説明
<jats:p>Volcanism on Earth is known to occur in three tectonic settings: divergent plate boundaries (such as mid-ocean ridges), convergent plate boundaries (such as island arcs), and hot spots. We report volcanism on the 135 million-year-old Pacific Plate not belonging to any of these categories. Small alkalic volcanoes form from small percent melts and originate in the asthenosphere, as implied by their trace element geochemistry and noble gas isotopic compositions. We propose that these small volcanoes erupt along lithospheric fractures in response to plate flexure during subduction. Minor extents of asthenospheric melting and the volcanoes' tectonic alignment and age progression in the direction opposite to that of plate motion provide evidence for the presence of a small percent melt in the asthenosphere.</jats:p>
収録刊行物
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- Science
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Science 313 (5792), 1426-1428, 2006-09-08
American Association for the Advancement of Science (AAAS)