Bubbles to Chondrites-II. Chemical fractionations in chondrites [PDF]
Progress in Earth and Planetary Science, 2021 We attempt to develop a possible theory of chemical fractionations in chondrites, that is consistent with various features of chondritic components and current observation of protoplanetary disks (PPD).
Akihiko Hashimoto, Yuki Nakano
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Properties of chondrules in EL3 chondrites, comparison with EH3 chondrites, and the implications for the formation of enstatite chondrites [PDF]
Meteoritics & Planetary Science, 2002 Abstract— The study of chondrules provides information about processes occurring in the early solar system. In order to ascertain to what extent these processes played a role in determining the properties of the enstatite chondrites, the physical and chemical properties of chondrules from three EL3 chondrites and three EH3 chondrites have been examined
D. M. Schneider +3 more
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The message of oldhamites from enstatite chondrites [PDF]
Progress in Earth and Planetary Science, 2022 We have determined rare-earth element (REE) abundances in oldhamites (CaS) from 13 unequilibrated and equilibrated enstatite chondrites (5 EH and 8 EL) and in a few enstatites by in situ, laser ablation ICP-MS.
Tahar Hammouda +3 more
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Impact-induced sublimation drives volatile depletion in carbonaceous meteorites [PDF]
Nature CommunicationsCarbonaceous chondrites are amongst the most chemically primitive solid materials in the Solar System, yet many are depleted in moderately volatile elements.
Zheng-Yu Long +11 more
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Impact-driven oxidation of organics explains chondrite shock metamorphism dichotomy [PDF]
Nature CommunicationsShocked meteorites can be used to probe the dynamics of the early Solar system. Carbonaceous chondrites are less shocked than ordinary chondrites, regardless of the degree of aqueous alteration.
Kosuke Kurosawa +5 more
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A glimpse into ancient food storage: Sequestrichnia and associated nucleocave Chondrites from Eocene deep-sea deposits [PDF]
Acta Palaeontologica Polonica, 2022 The old brickyard Velká nad Veličkou in the Czech Republic offers a unique insight into an Eocene deep-sea ichnoassemblage that is dominated by sequestrichnia.
JAROSLAV ŠAMÁNEK +3 more
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Middle Jurassic Zoophycos and Chondrites from the Mélah Formation of Saharan Atlas, Algeria [PDF]
Estonian Journal of Earth Sciences, 2019 The ichnogenera Zoophycos and Chondrites are described for the first time from the Middle Jurassic of Algeria. The trace fossil assemblage recovered from the Mélah Formation contains seven ichnospecies (Chondrites targionii, C.
Fayçal Mekki +8 more
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Testing models for the compositions of chondrites and their components: I. CO chondrites
Geochimica et Cosmochimica Acta, 2021 Abstract We present the first results of a comprehensive investigation aimed at testing the hypothesis of chondrule-matrix complementarity and the four-component model for the compositions of the carbonaceous chondrites and their components. Combining point-counting with electron microprobe analyses, we have determined the bulk compositions of thin ...
Andrea Patzer +2 more
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Composite Phymatoderma from Neogene deep-marine deposits in Japan: Implications for Phanerozoic benthic interactions between burrows and the trace-makers of Chondrites and Phycosiphon [PDF]
Acta Palaeontologica Polonica, 2015 Among composite trace fossils, one of the most common structures throughout the Phanerozoic are structures (e.g., dwelling trace, feeding trace) reworked by Chondrites and/or Phycosiphon.
Kentaro Izumi
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Hydrogen Isotopic Composition of Hydrous Minerals in Asteroid Ryugu
The Astrophysical Journal Letters, 2023 Rock fragments of the Cb-type asteroid Ryugu returned to Earth by the JAXA Hayabusa2 mission share mineralogical, chemical, and isotopic properties with the Ivuna-type (CI) carbonaceous chondrites.
Laurette Piani +87 more
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