Cooling Rates of Chondrules after Lightning Discharge in Solid-rich Environments
The Astrophysical Journal, 2023 Among the several candidate models for chondrule formation, the lighting model has been recognized to be less likely than the other two major models, shock-wave heating and planetesimal collision.
Hiroaki Kaneko +3 more
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Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk. [PDF]
Proc Natl Acad Sci U S A, 2020 Significance We present a coordinated petrologic, mineral chemistry, and multi-isotopic investigation of individual chondrules to further elucidate the origins and formation histories of planetary materials.
Williams CD +7 more
europepmc +2 more sources
Chondrule-like objects and Ca-Al-rich inclusions in Ryugu may potentially be the oldest Solar System materials [PDF]
Nature Communications, 2023 Chondrule-like objects and CAIs in the Ryugu samples are early generations of chondrules and possibly oldest solids in the Solar System. They were transported from the inner solar nebula to the formation location of the Ryugu original parent body.
Daisuke Nakashima +32 more
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Abundant microchondrules in 162173 Ryugu suggest a turbulent origin for primitive asteroids [PDF]
Nature CommunicationsChondrules are a characteristic feature of primitive Solar System materials and are common in all primitive meteorites except the CI-chondrites. They are thought to form owing to melting of solid dust aggregates by energetic processing within the solar ...
Matthew J. Genge +7 more
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Chondrule formation by collisions of planetesimals containing volatiles triggered by Jupiter’s formation [PDF]
Scientific ReportsChondrules are spherical or subspherical particles of crystallized or partially crystallized liquid silicates that constitute large-volume fractions of most chondritic meteorites.
Sin-iti Sirono, Diego Turrini
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A unifying model for the accretion of chondrules and matrix. [PDF]
Proc Natl Acad Sci U S A, 2019 Significance An impasse exists between chemical and astrophysical models that explore the accretion of the Solar System’s building blocks, the chondrites.
van Kooten EMME, Moynier F, Agranier A.
europepmc +2 more sources
3D porosity structure of the earliest solar system material [PDF]
Scientific Reports, 2022 Carbonaceous chondrites (CCs) contain the earliest preserved Solar System material, and objects containing this material are targets of numerous sample return missions.
Romy D. Hanna +3 more
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The Macroporosity of Rubble Pile Asteroid Ryugu and Implications for the Origin of Chondrules [PDF]
, 2021 We use the known surface boulder-size distribution of the C-type rubble pile asteroid Ryugu (NEA 162173) to determine its macroporosity, assuming it is a homogeneous granular aggregate.
W. Herbst, J. Greenwood, Teng ee Yap
semanticscholar +1 more source
Записки Горного института, 2022 The paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4).
Kristina G. Sukhanova +2 more
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Hysteresis properties of chondritic meteorites: New results for chondrules from the Allende meteorite [PDF]
Geofísica Internacional, 2002 Hysteresis properties of twenty individual chondrules from a ~50 cc piece of the Allende carbonaceous chondritic meteorite, with diameters between about 0.08 and 0.44 cm are reported. Coercive force Hc varies from about 3 mT to 32.5 mT.
Jaime Urrutia-Fucugauchi +1 more
doaj +3 more sources