Seismic activity provides information about the rigidity of Earth's inner core.
Seismic observations, such as measurements of shear-wave velocities and normal modes, are critical for probing the elastic properties, rigidity, and anisotropy of Earth's inner core.
The claim states that seismic activity provides information about the rigidity of Earth's inner core. Papers 1, 3, and 8 all rely on seismic data (such as normal-mode frequencies, shear waves, and J-waves) to investigate the physical state, elasticity, and rigidity of the inner core. No papers refute the claim.
Munch FD, Kemper J, Khan A, Helffrich G, Giardini D. Self-consistent models of Earth's mantle and core from long-period seismic and tidal constraints. 2025. https://doi.org/10.21203/rs.3.rs-5997581/v1
Paper 1 uses normal-mode seismic constraints to model the elastic and anelastic structure of Earth's core.
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Huang Y, He Y, Zhang Y, Li J, Hao L, Gan B, Jiang G, Wu Q, Mao HK. Experimental evidence for superionic Fe-C alloy revealed by shear softening in Earth's inner core.. 2025. https://doi.org/10.1093/nsr/nwaf419
Paper 3 utilizes seismic observations regarding shear wave velocities and Poisson's ratio to investigate the rigidity and physical state of Earth's inner core.
Sheng Wang, Hrvoje Tkalčić. Shear-wave Anisotropy in the Earth’s Inner Core. 2021. https://doi.org/10.31223/x5tw5q
Paper 8 analyzes shear-wave (J-wave) observations to study inner-core anisotropy and dynamics.
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