Inner Core Boundary

Jul 20, 2017

The Earth’s solid inner core grows from the solidification of the liquid outer core. The solidification process releases latent heat and expels light elements, providing driving forces for the outer core convection and the geodynamo which generates the Earth’s magnetic field. Thus, the information of the Earth’s inner core boundary is important for our understanding of the thermo-compositional state of the Earth’s core.

Localized mushy zone at the inner core boundary

Localized Mushy ICB
Localized mushy zone at the Earth’s inner core boundary beneath southwest Okhotsk Sea.
Earth Deep Interior
Dongdong Tian
Dongdong Tian
Associate Professor

I’m a seismologist with broad interests in structure of Earth’s deep interior and mechanims of small seismic events.

Publications

Jiayuan Yao, Dongdong Tian, Li Sun, Lianxing Wen (2020). Comment on “Origin of temporal changes of inner-core seismic waves” by Yang and Song (2020). Earth and Planetary Science Letters.

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Jiayuan Yao, Dongdong Tian, Li Sun, Lianxing Wen (2019). Temporal change of seismic Earth's inner core phases: inner core differential rotation or temporal change of inner core surface?. Journal of Geophysical Research: Solid Earth.

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Lianxing Wen, Dongdong Tian, Jiayuan Yao (2018). Seismic structure and dynamic process of the Earth's inner core and its boundary. Chinese Journal of Geophysics (in Chinese).

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Dongdong Tian, Lianxing Wen (2017). Seismological evidence for a localized mushy zone at the Earth’s inner core boundary. Nature Communications.

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