globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2166
论文题名:
Changbaishan volcanism in northeast China linked to subduction-induced mantle upwelling
作者: Tang Y.; Obayashi M.; Niu F.; Grand S.P.; Chen Y.J.; Kawakatsu H.; Tanaka S.; Ning J.; Ni J.F.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2014
卷: 7, 期:6
起始页码: 470
结束页码: 475
语种: 英语
Scopus关键词: backarc basin ; mantle plume ; Pacific plate ; plate tectonics ; seismic data ; subduction ; upwelling ; volcanism ; Baekdu Mountain ; Changbai Mountains ; China ; Japan Trench ; North Korea ; Pacific Ocean
英文摘要: Volcanism that occurs far from plate margins is difficult to explain with the current paradigm of plate tectonics. The Changbaishan volcanic complex, located on the border between China and North Korea, lies approximately 1,300 km away from the Japan Trench subduction zone and is unlikely to result from a mantle plume rising from a thermal boundary layer at the base of the mantle. Here we use seismic images and three-dimensional waveform modelling results obtained from the NECESSArray experiment to identify a slow, continuous seismic anomaly in the mantle beneath Changbaishan. The anomaly extends from just below 660 km depth to the surface beneath Changbaishan and occurs within a gap in the stagnant subducted Pacific Plate. We propose that the anomaly represents hot and buoyant sub-lithospheric mantle that has been entrained beneath the sinking lithosphere of the Pacific Plate and is now escaping through a gap in the subducting slab. We suggest that this subduction-induced upwelling process produces decompression melting that feeds the Changbaishan volcanoes. Subduction-induced upwelling may also explain back-arc volcanism observed at other subduction zones. © 2014 Macmillan Publishers Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106555
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: State Key Laboratory of Petroleum Resource and Prospecting, Unconventional Natural Gas Institute, China University of Petroleum, Beijing 102249, China; Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, United States; Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka-city, Kanagawa 237-0061, Japan; Department of Earth Science, MS-126, Rice University, Houston, TX 77005, United States; Institute of Theoretical and Applied Geophysics, SESS, Peking University, Beijing 100871, China; Earthquake Research Institute, University of Tokyo, Tokyo 113-0032, Japan; Department of Physics, New Mexico State University, Las Cruces, NM 88003-8001, United States

Recommended Citation:
Tang Y.,Obayashi M.,Niu F.,et al. Changbaishan volcanism in northeast China linked to subduction-induced mantle upwelling[J]. Nature Geoscience,2014-01-01,7(6)
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