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The isotopic nature of the Earth’s accreting material through time

The mantle signatures of elements with distinct affinities for metal isotopically record different stages of Earth’s accretion, revealing that the Moon-forming impactor had a similar composition to the other impactors that made the Earth.

Nicolas Dauphas
Research26 Jan 2017
Nature

Volume: 541, P: 521-524
Late fluid flow in a primitive asteroid revealed by Lu–Hf isotopes in Ryugu

Analysis of samples from the asteroid Ryugu provide evidence of late fluid flow in a carbonaceous asteroid, indicating that such bodies may have retained two to three times more water than previously thought.

Tsuyoshi Iizuka
Takazo Shibuya
Hisayoshi Yurimoto
Research10 Sept 2025
Nature

Volume: 646, P: 62-67
The U/Th production ratio and the age of the Milky Way from meteorites and Galactic halo stars

Nicolas Dauphas
Research30 Jun 2005
Nature

Volume: 435, P: 1203-1205
An oceanic subduction origin for Archaean granitoids revealed by silicon isotopes

Archaean granitic rocks formed by melting of silica-enriched subducted basaltic crust through interaction with seawater, according to heavy silicon isotopes measured in Archaean samples.

Zhengbin Deng
Marc Chaussidon
Frédéric Moynier
Research26 Aug 2019
Nature Geoscience

Volume: 12, P: 774-778
Sulphur from heaven and hell

Fingerprints of sulphur isotopes in rocks from the ridge beneath the Atlantic Ocean suggest that a substantial fraction of sulphur at Earth's surface is left over from the formation of the planet's core. See Letter p.208

Nicolas Dauphas
News & Views04 Sept 2013
Nature

Volume: 501, P: 175-176
Iron isotopic fractionation between silicate mantle and metallic core at high pressure

Terrestrial basalts have a unique iron isotopic signature taken as fingerprints of core formation. Here, high pressure studies show that force constants of iron bonds increase with pressure similarly for silicate and metals suggesting interplanetary isotopic variability is not due to core formation.

Jin Liu
Nicolas Dauphas
Jung-Fu Lin
ResearchOpen Access20 Feb 2017
Nature Communications

Volume: 8, P: 1-6
Silicon isotopic signatures of granitoids support increased weathering of subaerial land 3.7 billion years ago

Emergence of land and continental weathering feedbacks likely started around 3.8 to 3.6 billion years ago, according to silicon isotope analysis of Archean granitoids.

Nicolas D. Greber
Madeleine E. Murphy
Paul S. Savage
ResearchOpen Access16 May 2025
Communications Earth & Environment

Volume: 6, P: 1-9
The proto-Earth as a significant source of lunar material

Geochemical evidence continues to challenge giant impact models, which predict that the Moon formed from both proto-Earth and impactor material. Analyses of lunar samples reveal isotopic homogeneity in titanium, a highly refractory element, suggesting lunar material was derived predominantly from the mantle of the proto-Earth.

Junjun Zhang
Nicolas Dauphas
Alexei Fedkin
Research25 Mar 2012
Nature Geoscience

Volume: 5, P: 251-255
Contribution of Ryugu-like material to Earth’s volatile inventory by Cu and Zn isotopic analysis

A comparison of copper and zinc isotopic measurements between the Ryugu samples and various carbonaceous chondrites excludes any genetic link between the two except for the CI (Ivuna-type) chondrites. Ryugu-like material might have accounted for ~5% of Earth’s mass.

Marine Paquet
Frederic Moynier
Hisayoshi Yurimoto
Research12 Dec 2022
Nature Astronomy

Volume: 7, P: 182-189
Carbonate record of temporal change in oxygen fugacity and gaseous species in asteroid Ryugu

The asteroid Ryugu experienced aqueous alteration under changing temperature and redox conditions, according to an isotopic analysis of secondary calcite and dolomite grains in samples from Ryugu obtained by the Hayabusa2 spacecraft.

Wataru Fujiya
Noriyuki Kawasaki
Hisayoshi Yurimoto
Research10 Jul 2023
Nature Geoscience

Volume: 16, P: 675-682
Author Correction: Contribution of Ryugu-like material to Earth’s volatile inventory by Cu and Zn isotopic analysis

Marine Paquet
Frederic Moynier
Hisayoshi Yurimoto
Amendments and Corrections14 Mar 2023
Nature Astronomy

Volume: 7, P: 633
The deuterium/hydrogen distribution in chondritic organic matter attests to early ionizing irradiation

The insoluble organic matter in primitive carbonaceous chondrites has a systematic large enrichment in deuterium and several hypotheses have been proposed to explain this. Here, the authors demonstrate that irradiation from the protosun could quantitatively explain the deuteration.

Boris Laurent
Mathieu Roskosz
Jean-Marc Lefebvre
ResearchOpen Access13 Oct 2015
Nature Communications

Volume: 6, P: 1-6

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