Results 11 to 20 of about 8,403 (204)
Dating and Tracing the Origin of Enstatite Chondrite Chondrules with Cr Isotopes [PDF]
Astrophysical Journal, 2020 Chondrules are major components of chondrites and are believed to drive the accretion of planetary embryos. As such, constraining the timing and origin of chondrules is central for understanding the early evolution of the solar system and the formation ...
K. Zhu 朱 +3 more
semanticscholar +2 more sources
Classification of stony meteorites and chondrules – the case of meteorite Jesenice
Geologija, 2012 In the first part of the paper there is a description about genesis of meteorites, in particularly about stony meteorites– chondrites, since meteorite Jesenice is an ordinary L chondrite. Chondrules represent main part of the mass ofchondritic meteorites.
Bojan Ambrožič +3 more
doaj +3 more sources
Chondrule Survivability in the Solar Nebula [PDF]
The Astrophysical JournalThe lifetime of millimeter-sized dust grains, such as chondrules, in the nominal solar nebula model is limited to ∼10 ^5 yr, due to an inward drift driven by gas drag.
Tetsuo Taki, Shigeru Wakita
doaj +2 more sources
The Astrophysical JournalComet 81P/Wild 2 is a ∼4.5 km-sized primordial object that almost has not been modified by internal heating by ^26 Al decay. Its nucleus could have been formed by hierarchical agglomeration or gravitational collapse of pebble swarms concentrated by ...
Mingming Zhang +5 more
doaj +2 more sources
Chondrules: The canonical and noncanonical views [PDF]
, 2016 H. C. Connolly, R. Jones
semanticscholar +2 more sources
Early formation of planetary building blocks inferred from Pb isotopic ages of chondrules [PDF]
Science Advances, 2017 Age dating of meteorite inclusions suggests rapid formation of the building blocks of terrestrial planets within 1 My of the Sun. The most abundant components of primitive meteorites (chondrites) are millimeter-sized glassy spherical chondrules formed by
J. Bollard +8 more
semanticscholar +1 more source
Chondrules from high-velocity collisions: thermal histories and the agglomeration problem
, 2021 We assess whether chondrules, once-molten mm-sized spheres filling the oldest meteorites, could have formed from super-km/s collisions between planetesimals in the solar nebula.
Nick Choksi +4 more
semanticscholar +1 more source
Bubbles to Chondrites-I. Evaporation and condensation experiments, and formation of chondrules
Progress in Earth and Planetary Science, 2020 We propose a simple model of chondrule formation that is supported by our new experiments. With a laser-heating and inert-gas-cooling technique, we obtained evaporation and condensation pathways starting with chondritic compositions till ends, and ...
Yuki Nakano, Akihiko Hashimoto
doaj +1 more source
Origin of Isotopic Diversity among Carbonaceous Chondrites
The Astrophysical Journal Letters, 2023 Carbonaceous chondrites are some of the most primitive meteorites and derive from planetesimals that formed a few million years after the beginning of the solar system.
Jan L. Hellmann +7 more
doaj +1 more source