Seismological evidence for differential rotation of the Earth's inner core
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The event-based method used in this study is less precise than the doublet-based method but provides much better temporal and spatial coverage.
“Although the event-based method, which was used in the original study on the subject (Song & Richards, 1996), is less precise than the doublet-based method, it provides much better temporal and spatial coverage.”
From Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network (2026) · cites this paper as Song & Richards, 1996
Seismic observations have provided critical evidence for inner core differential rotation.
“Seismic observations have provided critical evidence for IC differential rotation (Creager, 1997;Song & Richards, 1996;Vidale et al., 2000), and different models have been proposed.”
From Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network (2026) · cites this paper as Song & Richards, 1996
Inner-core rotation estimates are now converging from early estimates of several times larger.
“These estimates are now converging from early estimates of several times larger (e.g., Creager, 1997;Song & Richards, 1996).”
From Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network (2026) · cites this paper as Song & Richards, 1996
Seismological observations confirmed differential rotation of the inner core relative to the mantle, with varying rotation rates in the eastward (prograde) direction, settling to the range from 0.3 to 1.1 years per degree faster than the mantle.
“These observations confirmed the theoretical predictions of differential rotation of the inner core relative to the mantle, with varying rotation rates in the eastward (prograde) direction, settling to the range from 0.3 to 1.1 years per degree faster than the mantle.”
From On the Inner‐Core Differential‐Rotation (Un)Resolvability From Earthquake Doublets: The Traps of Data Selection (2024) · cites this paper as Song & Richards, 1996
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Self-citationDeep Earth Structure – The Earth’s Cores
Souriau, A. (2007) · Elsevier eBooks · doi:10.1016/b978-044452748-6.00023-7 · Cited by 61 · see citing works
Evidence for small-scale heterogeneity in Earth's inner core from a global study of PKiKP coda waves
Koper, K. D., Franks, J. M., & Dombrovskaya, M. (2004) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2004.10.027 · Cited by 58 · see citing works
Mechanics of inner core super‐rotation
Aurnou, J. M., Brito, D., & Olson, P. L. (1996) · Geophysical Research Letters · doi:10.1029/96gl03258 · Cited by 58 · see citing works
Isotropy overlying anisotropy at the top of the inner core
Ouzounis, A., & Creager, K. C. (2001) · Geophysical Research Letters · doi:10.1029/2001gl013341 · Cited by 58 · see citing works
A convection model to explain anisotropy of the inner core
Wenk, H. R., Baumgardner, J. R., Lebensohn, R. A., & Tomé, C. N. (2000) · Journal of Geophysical Research Atmospheres · doi:10.1029/1999jb900346 · Cited by 57 · see citing works
Acevedo, J. F., Bramante, J., Goodman, A., Kopp, J., & Opferkuch, T. (2021) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2021/04/026 · Cited by 57 · see citing works
Electromagnetic core-mantle coupling II: Probing deep mantle conductance
Holme, R. (1998) · Geodynamics series/Geodynamic series · doi:10.1029/gd028p0139 · Cited by 57 · see citing works
Yu, W.-C., & Wen, L. (2006) · Journal of Geophysical Research Atmospheres · doi:10.1029/2005jb003995 · Cited by 57 · see citing works
Inner core tilt and polar motion
Dumberry, M., & Bloxham, J. (2002) · Geophysical Journal International · doi:10.1046/j.1365-246x.2002.01756.x · Cited by 57 · see citing works
- Authors
- Song, X., & Richards, P. G.
- Affiliations
- Lamont-Doherty Earth Observatory (US)
- Venue
- Nature
- Published
- 1996-07
- Volume
- 382
- Issue
- 6588
- Pages
- 221-224
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1990488587
- Cited by
- 445
- References
- 30
- Citations by year
- 2026: 8 · 2025: 13 · 2024: 8 · 2023: 19 · 2022: 14 · 2021: 6 · 2020: 18 · 2019: 11 · 2018: 6 · 2017: 13 · 2016: 8 · 2015: 22 · 2014: 7 · 2013: 10 · 2012: 6
- FWCI
- 26.98
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geophysics › High-pressure geophysics and materials
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Seismic Waves and Analysis
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Seismic Imaging and Inversion Techniques
- Keywords
- Earth's inner core, differential rotation, seismic travel times, inner core anisotropy, seismic anisotropy
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