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Composition and state of the core
K Hirose, S Labrosse, J Hernlund - Annual Review of Earth and …, 2013 - annualreviews.org
The composition and state of Earth's core, located deeper than 2,900 km from the surface,
remain largely uncertain. Recent static experiments on iron and alloys performed up to inner …
remain largely uncertain. Recent static experiments on iron and alloys performed up to inner …
Constraints from material properties on the dynamics and evolution of Earth's core
The Earth's magnetic field is powered by energy supplied by the slow cooling and freezing
of the liquid iron core. Efforts to determine the thermal and chemical history of the core have …
of the liquid iron core. Efforts to determine the thermal and chemical history of the core have …
Seismically determined elastic parameters for Earth's outer core
JCE Irving, S Cottaar, V Lekić - Science advances, 2018 - science.org
Turbulent convection of the liquid iron alloy outer core generates Earth's magnetic field and
supplies heat to the mantle. The exact composition of the iron alloy is fundamentally linked …
supplies heat to the mantle. The exact composition of the iron alloy is fundamentally linked …
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 …
Up-to-fivefold reverberating waves through the Earth's center and distinctly anisotropic innermost inner core
Probing the Earth's center is critical for understanding planetary formation and evolution.
However, geophysical inferences have been challenging due to the lack of seismological …
However, geophysical inferences have been challenging due to the lack of seismological …
Hydrogen distribution between the Earth's inner and outer core
L Yuan, G Steinle-Neumann - Earth and Planetary Science Letters, 2023 - Elsevier
Hydrogen, the most abundant element in the universe, has likely been incorporated into
Earth's core due to its tendency to dissolve in iron at high pressure. Using machine-learning …
Earth's core due to its tendency to dissolve in iron at high pressure. Using machine-learning …
Gravitational constraints on the Earth's inner core differential rotation
The differential axial rotation of the solid inner core (IC) is suggested by seismic
observations and expected from core dynamics models. A rotation of the IC by an angle α …
observations and expected from core dynamics models. A rotation of the IC by an angle α …
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 …
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 …
Imaging the top of the Earth's inner core: a present-day flow model
H Tkalčić, AB Belonoshko, JB Muir, M Mattesini… - Scientific Reports, 2024 - nature.com
Despite considerable progress in seismology, mineral physics, geodynamics,
paleomagnetism, and mathematical geophysics, Earth's inner core structure and evolution …
paleomagnetism, and mathematical geophysics, Earth's inner core structure and evolution …