Heterogeneity and anisotropy of Earth's inner core
A Deuss - Annual Review of Earth and Planetary Sciences, 2014 - annualreviews.org
Seismic observations provide strong evidence that Earth's inner core is anisotropic, with
larger velocity in the polar than in the equatorial direction. The top 60–80 km of the inner …
larger velocity in the polar than in the equatorial direction. The top 60–80 km of the inner …
Complex inner core of the Earth: The last frontier of global seismology
H Tkalčić - Reviews of Geophysics, 2015 - Wiley Online Library
The days when the Earth's inner core (IC) was viewed as a homogeneous solid sphere
surrounded by the liquid outer core (OC) are now behind us. Due to a limited number of data …
surrounded by the liquid outer core (OC) are now behind us. Due to a limited number of data …
Lopsided growth of Earth's inner core
M Monnereau, M Calvet, L Margerin, A Souriau - Science, 2010 - science.org
Hemispherical asymmetry is a prominent feature of Earth's inner core, but how this
asymmetry relates to core growth is unknown. Based on multiple-scattering modeling of …
asymmetry relates to core growth is unknown. Based on multiple-scattering modeling of …
Thermochemical flows couple the Earth's inner core growth to mantle heterogeneity
Seismic waves sampling the top 100 km of the Earth's inner core reveal that the eastern
hemisphere (40° E–180° E) is seismically faster,, more isotropic, and more attenuating than …
hemisphere (40° E–180° E) is seismically faster,, more isotropic, and more attenuating than …
Small-scale layered structures at the inner core boundary
The fine-scale seismic features near the inner core boundary (ICB) provide critical insights
into the thermal, chemical, and geodynamical interactions between liquid and solid cores …
into the thermal, chemical, and geodynamical interactions between liquid and solid cores …
[PDF][PDF] 1.25—deep earth structure: Q of the Earth from crust to core
B Romanowicz, B Mitchell - Treatise on geophysics, 2015 - scholar.archive.org
Seismic waves have long been known to attenuate at a rate greater than that predicted by
geometric spreading of their wave fronts. Knopoff (1964) pointed out more than four decades …
geometric spreading of their wave fronts. Knopoff (1964) pointed out more than four decades …
Superionic effect and anisotropic texture in Earth's inner core driven by geomagnetic field
Seismological observations suggest that Earth's inner core (IC) is heterogeneous and
anisotropic. Increasing seismological observations make the understanding of the …
anisotropic. Increasing seismological observations make the understanding of the …
Enhanced inner core fine-scale heterogeneity towards Earth's centre
Earth's inner core acquires texture as it solidifies within the fluid outer core. The size, shape
and orientation of the mostly iron grains making up the texture record the growth of the inner …
and orientation of the mostly iron grains making up the texture record the growth of the inner …
An initial map of fine-scale heterogeneity in the Earth's inner core
W Wang, JE Vidale - Nature Geoscience, 2022 - nature.com
The seismological properties of Earth's inner core are key to understanding its composition,
dynamics and growth history. Within the inner core, fine-scale heterogeneity has previously …
dynamics and growth history. Within the inner core, fine-scale heterogeneity has previously …
Distinct layering in the hemispherical seismic velocity structure of Earth's upper inner core
The existence of hemispherical variation in the Earth's inner core is well‐documented, but
consensus has not yet been reached on its detailed structure. The uppermost layers are a …
consensus has not yet been reached on its detailed structure. The uppermost layers are a …