Core processes articles from across Nature Portfolio

Core processes describe the transfer of heat and material between the Earth’s solid inner core and molten outer core and the exchange of heat across the core-mantle boundary, as well as the convection in the outer core that generates the geomagnetic field.

Featured

News & Views | 04 May 2023

Oxygen-rich melt in deep magma oceans
- Fabrice Gaillard
Nature Geoscience 16, 392-393

Latest Research and Reviews

Reviews | 24 May 2023

Gyres, jets and waves in the Earth’s core

Gyres, jets and waves are thought to have an important role in Earth’s core dynamics. This Review explores these core processes, based on satellite observations and numerical simulations, and discusses the implications for deep-Earth coupling and forecasting geomagnetic field changes.
- Christopher C. Finlay
- , Nicolas Gillet
- & Dominique Jault
Nature Reviews Earth & Environment, 1-16
Research | 04 May 2023

Hadean mantle oxidation inferred from melting of peridotite under lower-mantle conditions

The early Earth’s mantle rapidly oxidized during the Hadean because of iron disproportionation and core segregation, according to experiments melting peridotite under deep-mantle conditions.
- Hideharu Kuwahara
- , Ryoichi Nakada
- & Tetsuo Irifune
Nature Geoscience 16, 461-465
Research | 04 May 2023

Primordial helium extracted from the Earth’s core through magnesium oxide exsolution

Primordial helium in the deep mantle may be supplied continuously from Earth’s core, according to first-principles calculations and modelling of helium partitioning into exsolved magnesium oxide at core–mantle boundary conditions
- Jie Deng
- & Zhixue Du
Nature Geoscience, 1-5
Research
17 April 2023 | Open Access

Effect of Bamboo biochar on strength and water retention properties of low plastic clay and silty sand
- Shailesh Kumar Yadav
- & Ramakrishna Bag
Scientific Reports 13, 6201
Research | 16 March 2023

Longitudinal structure of Earth’s magnetic field controlled by lower mantle heat flow

The pattern of heat flow across the core–mantle boundary results in longitudinal differences in geomagnetic field behaviour, according to geodynamo modelling.
- Jonathan E. Mound
- & Christopher J. Davies
Nature Geoscience 16, 380-385
Research
21 February 2023 | Open Access

Up-to-fivefold reverberating waves through the Earth’s center and distinctly anisotropic innermost inner core

This study presents hitherto unreported multiply-reverberating seismic body waves through the Earth’s center. Their travel times confirm a distinct internal shell within the inner core, existing possibly due to a past change in the inner core growth.
- Thanh-Son Phạm
- & Hrvoje Tkalčić
Nature Communications 14, 754

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News and Comment

Research Highlights | 25 May 2023

Quantifying the porosity of natural reservoirs with nuclear magnetic resonance

Daniela Navarro-Perez explains how nuclear magnetic resonance can be used to assess the capacity of natural reservoirs to store fluids.
- Daniela Navarro-Perez
Nature Reviews Earth & Environment, 1
News & Views | 04 May 2023

Oxygen-rich melt in deep magma oceans

High pressures may have enabled ferric iron-rich silicate melts to coexist with iron metal near the base of magma oceans early in the history of large rocky planets like Earth. This suggests a relatively oxygen-rich atmosphere during the late stages of core formation on these planets.
- Fabrice Gaillard
Nature Geoscience 16, 392-393
News & Views | 23 January 2023

Differential rotation of the Earth’s inner core changes over decades and has come to near-halt

Seismic observations reveal that the Earth’s inner core oscillates with a period of approximately seven decades. The multidecadal periodicity coincides with that of several other geophysical observations, particularly the variations in the length of day and the Earth’s magnetic field, suggesting dynamic interactions between the major layers of the Earth.

Nature Geoscience 16, 113-114
News & Views | 27 October 2022

A new window on the Martian core

The coda correlation wavefield technique provides a powerful tool for surveying planetary interiors using only data from a single station. Its application to the SEIS seismometer on the InSight lander, which has been providing unique data on the interior of Mars since 2018, is a promising example of what it can bring to planetary seismology studies.
- Steven J. Gibbons
Nature Astronomy 6, 1235-1236
News & Views | 04 August 2022

Patching up the field
- Louise Hawkins
Nature Geoscience 15, 604
News & Views | 01 November 2021

Sulfur evaporation in planetesimals

Evaporative loss of sulfur from molten planetesimals can explain the sub-chondritic sulfur isotope composition of the bulk silicate mantle, suggesting an important role for planetesimal evaporation in establishing Earth’s volatile budget.
- Yuan Li
Nature Geoscience 14, 803-805

All News & Comment

Core processes articles from across Nature Portfolio

Featured

Oxygen-rich melt in deep magma oceans

Latest Research and Reviews

Gyres, jets and waves in the Earth’s core

Hadean mantle oxidation inferred from melting of peridotite under lower-mantle conditions

Primordial helium extracted from the Earth’s core through magnesium oxide exsolution

Effect of Bamboo biochar on strength and water retention properties of low plastic clay and silty sand

Longitudinal structure of Earth’s magnetic field controlled by lower mantle heat flow

Up-to-fivefold reverberating waves through the Earth’s center and distinctly anisotropic innermost inner core

News and Comment

Quantifying the porosity of natural reservoirs with nuclear magnetic resonance

Oxygen-rich melt in deep magma oceans

Differential rotation of the Earth’s inner core changes over decades and has come to near-halt

A new window on the Martian core

Patching up the field

Sulfur evaporation in planetesimals

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