High mantle seismic P-wave speeds as a signature for gravitational spreading of superplumes

New passive- and active-source seismic experiments reveal unusually high mantle P-wave speeds that extend beneath the remnants of the world’s largest known large igneous province, making up the 120-million-year-old Ontong-Java-Manihiki-Hikurangi Plateau. Sub-Moho Pn phases of ~8.8 ± 0.2 km/s are res...

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Bibliographic Details
Main Authors: Stern, Tim, Lamb, Simon, Moore, James Daniel Paul, Okaya, David, Hochmuth, Katharina
Other Authors: Earth Observatory of Singapore
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/144978
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Institution: Nanyang Technological University
Language: English

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