Results 11 to 20 of about 5,656 (205)
Chondrules in Enstatite Chondrites [PDF]
, 2018 23 pages, 4 figures. Submitted manuscript for a chapter in the book "Chondrules and the protoplanetary disc" (editors : S. Russell, H. C. Connolly Jr, A. N. Krot) to be published by Cambridge University Press in 2018. This version is free to view and download for personal use only.
Jacquet, Emmanuel +2 more
openaire +5 more sources
New constraints from 26Al-26Mg chronology of anorthite bearing chondrules in unequilibrated ordinary chondrites. [PDF]
Geochim Cosmochim Acta, 2021 26Al-26Mg ages were determined for 14 anorthite-bearing chondrules from five different unequilibrated ordinary chondrites (UOCs) with low petrologic subtypes (3.00-3.05). In addition, oxygen three isotopes of these chondrules were also measured.
Siron G, Fukuda K, Kimura M, Kita NT.
europepmc +2 more sources
Oxygen isotope systematics of chondrules in the Paris CM2 chondrite: indication for a single large formation region across snow line. [PDF]
Geochim Cosmochim Acta, 2021 In-situ oxygen three-isotope analyses of chondrules and isolated olivine grains in the Paris (CM) chondrite were conducted by secondary ion mass spectrometry (SIMS).
Chaumard N +3 more
europepmc +2 more sources
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
Early evolution of the solar accretion disk inferred from Cr-Ti-O isotopes in individual chondrules [PDF]
, 2020 Isotopic anomalies in chondrules hold important clues about the dynamics of mixing and transport processes in the solar accretion disk. The meaning of these anomalies is debated and they have been interpreted to indicate either disk-wide transport of ...
J. Schneider +4 more
semanticscholar +1 more source
Geochimica et Cosmochimica Acta, 2021 Oxygen-isotope ratios of olivine in type I (MgO-rich) and type II (FeO-rich) chondrules and olivine fragments in the matrix from the Tagish Lake meteorite (C2-anomalous) were measured to understand the characteristics of the formation environment of the ...
T. Ushikubo, M. Kimura
semanticscholar +1 more source
Geochimica et Cosmochimica Acta, 2021 The partial pressures and isotopic compositions of volatiles present during chondrule formation can be constrained by the highly volatile element or HVE (H, C, F, Cl, and S) abundances and isotopic compositions in chondrules.
K. Shimizu +7 more
semanticscholar +1 more source
Earth and Planetary Science Letters, 2021 Anhydrous interplanetary dust particles (IDPs) collected from Earth's stratosphere are the most primitive extraterrestrial materials that likely are the remnants of major building blocks of our solar system.
Mingming Zhang +7 more
semanticscholar +1 more source
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
Geochimica et Cosmochimica Acta, 2021 Chondrules from unequilibrated ordinary chondrites are among the oldest Solar system materials and preserve mineralogical, chemical and isotopic signatures that link them to their primary formation mechanisms and environments in the early Solar System ...
J. Pape +3 more
semanticscholar +1 more source