Earth’s mantle

Potassium-40 isotopic evidence for an extant pre-giant-impact component of Earth’s mantle

14/10/2025 14:13 · by karmaka · in accretion, accretion, Earth, planets/planetesimals

Da Wang, Nicole X. Nie, Bradley J. Peters, James M. D. Day, Steven B. Shirey & Richard W. Carlson Nature Geoscience, Published: 14 October 2025 LINK “Earth’s bulk composition has elemental and isotopic characteristics that…

Mechanisms and timing of carbonaceous chondrite delivery to the EarthOPEN ACCESS

08/11/2024 06:42 · by karmaka · in carbonaceous chondrite, early chronology, Earth, Moon, planets/planetesimals

Francis Nimmo, Thorsten Kleine, Alessandro Morbidelli, David Nesvorny Accepted for publication in Earth and Planetary Science Letters, 7 November 2024 PDF (OPEN ACCESS) “The nucleosynthetic isotope signatures of meteorites and the bulk silicate Earth (BSE)…

Crash Chronicles: Relative contribution from comets and carbonaceous asteroids to Earth’s volatile budget in the context of an Early InstabilityOPEN ACCESS

06/03/2024 21:27 · by karmaka · in carbonaceous chondrite, comet, Earth

Sarah Joiret, Sean N. Raymond, Guillaume Avice, Matthew S. Clement IcarusIn Press, Journal Pre-proof, Available online 6 March 2024 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Highlights The cometary signature in the atmosphere of the Earth is…

Identification of chondritic krypton and xenon in Yellowstone gases and the timing of terrestrial volatile accretionOPEN ACCESS

09/06/2020 10:28 · by karmaka · in accretion, early chronology, Earth, noble gases, planets/planetesimals

Michael W. Broadley, Peter H. Barry, David V. Bekaert, David J. Byrne, Antonio Caracausi, Christopher J. Ballentine, and Bernard Marty PNAS, first published June 8, 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Identifying the origin of…

Significance of High Field Strength and Rare Earth Element Distributions in Deciphering the Evolution of the Inner Solar System

28/05/2019 19:39 · by karmaka · in angrite, Earth, Mars, primitive achondrite

Kent C. Condie, Charles K. Shearer Geochimica et Cosmochimica Acta Available online 28 May 2019 LINK “Major processes affecting high field strength (HFSE) and rare earth (REE) element ratios in planetary basalts are degree of…

Silver contents and Cu/Ag ratios in Martian meteorites and the implications for planetary differentiation

22/05/2017 13:49 · by karmaka · in carbonaceous chondrite, differentiation, enstatite chondrite, Mars, martian, nakhlite, ordinary chondrite, planets/planetesimals, shergottite

Zaicong Wang, Harry Becker Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 21 May 2017 LINK “Silver and Cu show very similar partitioning behavior in sulfide melt-silicate melt and metal-silicate systems at low…

The origin of the neon isotopes in chondrites and on Earth

17/11/2015 17:43 · by karmaka · in accretion, early chronology, Earth, enstatite chondrite, meteorite, noble gases, ordinary chondrite, R chondrite, solar system

Manuel Moreira, Sébastien Charnoz Earth and Planetary Science Letters In Press, Corrected Proof, Available online 16 November 2015 doi:10.1016/j.epsl.2015.11.002 LINK “We discuss the origin of the neon isotopic signatures in chondrites and in the terrestrial…