Dark magma at the bottom of the lower mantle -New insights into the super-hot plumes in the deep Earth- (Press Release)
- Release Date
- 13 Nov, 2014
- BL11XU (JAEA Quantum Dynamics)
Graduate School of Science, Tohoku University
Japan Atomic Energy Agency (JAEA)
Japan Synchrotron Radiation Research Institute (JASRI)
The research team led by Prof. Motohiko Murakami of Tohoku University have revealed for the first time that the dense magmas in the Earth’s interior become significantly “darker” with increasing pressure, and become less thermally conductive than previously expected. The results indicate that the possible presence of such dense and “dark” magmas at the bottom of the mantle play an essential role for the generation of giant hot mantle upwelling rooted in the Earth’s core-mantle boundary, so-called “super-hot plume”. Publication: |
<<Figures>>
(T.Lay, Q.Williams & E.J.Garnero et al.Nature (1998))
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