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Siderophile element constraints on the origin of the Moon.Radar-enabled recovery of the Sutter's Mill meteorite, a carbonaceous chondrite regolith breccia.Early inner solar system origin for anomalous sulfur isotopes in differentiated protoplanets.Early formation of evolved asteroidal crust.Preservation of Earth-forming events in the tungsten isotopic composition of modern flood basalts.Tungsten isotopic evidence for disproportional late accretion to the Earth and Moon.Stochastic late accretion to Earth, the Moon, and MarsTungsten-182 heterogeneity in modern ocean island basalts182W evidence for long-term preservation of early mantle differentiation products.Efficient mixing of the solar nebula from uniform Mo isotopic composition of meteorites.High-Precision Tungsten Isotopic Analysis by Multicollection Negative Thermal Ionization Mass Spectrometry Based on Simultaneous Measurement of W and (18)O/(16)O Isotope Ratios for Accurate Fractionation Correction.High-precision Ru isotopic measurements by multi-collector ICP-MS.Re–Os age constraints and new observations of Proterozoic glacial deposits in the Vazante Group, BrazilHighly siderophile element geochemistry of peridotites and pyroxenites from Horní Bory, Bohemian Massif: Implications for HSE behaviour in subduction-related upper mantleEffects of melt percolation on highly siderophile elements and Os isotopes in subcontinental lithospheric mantle: A study of the upper mantle profile beneath Central EuropeDiachronous decratonization of the Sino-Korean craton: Geochemistry of mantle xenoliths from North KoreaExtreme persistence of cratonic lithosphere in the southwest Pacific: Paleoproterozoic Os isotopic signatures in ZealandiaGeodynamic implications of ophiolitic chromitites in the La Cabaña ultramafic bodies, Central ChileHighly siderophile element depletion in the MoonChemical heterogeneity in the upper mantle recorded by peridotites and chromitites from the Shetland Ophiolite Complex, ScotlandEvolution of the martian mantle inferred from the 187Re–187Os isotope and highly siderophile element abundance systematics of shergottite meteoritesLate accretion as a natural consequence of planetary growthOrigin of felsic achondrites Graves Nunataks 06128 and 06129, and ultramafic brachinites and brachinite-like achondrites by partial melting of volatile-rich primitive parent bodiesPlanetary-Scale Strontium Isotopic Heterogeneity and the Age of Volatile Depletion of Early Solar System MaterialsRhenium–osmium isotope and highly-siderophile-element abundance systematics of angrite meteoritesErratum to “Rhenium–osmium isotopes and platinum-group elements in the Rum Layered Suite, Scotland: Implications for Cr-spinel seam formation and the composition of the Iceland mantle anomaly” [Earth and Planetary Science Letters 286 (2009) 41?Big insights from tiny peridotites: Evidence for persistence of Precambrian lithosphere beneath the eastern North China CratonComparative Sr–Nd–Hf–Os–Pb isotope systematics of xenolithic peridotites from Yangyuan, North China Craton: Additional evidence for a Paleoproterozoic ageMapping lithospheric boundaries using Os isotopes of mantle xenoliths: An example from the North China CratonProcesses controlling highly siderophile element fractionations in xenolithic peridotites and their influence on Os isotopesInterpreting ages from Re–Os isotopes in peridotitesTemporal Evolution of the Lithospheric Mantle beneath the Eastern North China CratonRecycling deep cratonic lithosphere and generation of intraplate magmatism in the North China CratonRe–Os evidence for the age and origin of peridotites from the Dabie–Sulu ultrahigh pressure metamorphic belt, ChinaDiffusion-driven extreme lithium isotopic fractionation in country rocks of the Tin Mountain pegmatiteOsmium isotopic constraints on the age of lithospheric mantle beneath northeastern ChinaRe-Os systematics of komatiites and komatiitic basalts at Dundonald Beach, Ontario, Canada: Evidence for a complex alteration history and implications of a late-Archean chondritic mantle sourceThe origin of the unique achondrite Northwest Africa 6704: Constraints from petrology, chemistry and Re–Os, O and Ti isotope systematicsSimplified mantle architecture and distribution of radiogenic powerFormation of pyroxenite layers in the Totalp ultramafic massif (Swiss Alps) – Insights from highly siderophile elements and Os isotopes
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P50
description
geochemist
@en
wetenschapper
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name
Richard J Walker
@nl
Richard J. Walker
@en
type
label
Richard J Walker
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Richard J. Walker
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altLabel
R J Walker
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R Walker
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R. J. Walker
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R. Walker
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R.J. Walker
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RJ Walker
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Richard J Walker
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Richard Walker
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prefLabel
Richard J Walker
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Richard J. Walker
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P106
P21
P31
P496
0000-0003-0348-2407