Results 21 to 30 of about 11,462 (208)

Extended chondrule formation intervals in distinct physicochemical environments: Evidence from Al-Mg isotope systematics of CR chondrite chondrules with unaltered plagioclase. [PDF]

Geochim Cosmochim Acta, 2019
Tenner TJ, Nakashima D, Ushikubo T, Tomioka N, Kimura M, Weisberg MK, Kita NT.   +6 more
europepmc   +2 more sources

The ²⁶Al-²⁶Mg systematics of FeO-rich chondrules from Acfer 094: two chondrule generations distinct in age and oxygen isotope ratios. [PDF]

Geochim Cosmochim Acta, 2019
Hertwig AT, Makoto K, Ushikubo T, Defouilloy C, Kita NT.   +4 more
europepmc   +2 more sources

THE Formation of chondrule-like particles in RF discharge plasma

Physical Sciences and Technology, 2023
Chondrules are fundamental components of chondritic meteorites and play a vital role in understanding the formation of the early solar system. This study focuses on the synthesis of chondrule-like particles in a plasma environment using a radiofrequency
Assan Abdirakhmanov, Madina Dauylbayeva, Baglan Kyrykbay, Akdaulet Baikaliyev, Sagi Orazbayev, Almasbek Utegenov, Maratbek Gabdullin, Tlekkabul Ramazanov, Didar Batryshev   +8 more
doaj   +1 more source

Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements

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, Anton B. Kuznetsov, Olga L. Galankina   +2 more
doaj   +1 more source

Constraints on the formation environment of two chondrule‐like igneous particles from comet 81P/Wild 2 [PDF]

Meteoritics and Planetary Science, 2015
Z. Gainsforth, A. Butterworth, J. Stodolna, A. Westphal, G. Huss, K. Nagashima, R. Ogliore, D. Brownlee, D. Joswiak, T. Tyliszczak, A. Simionovici   +10 more
semanticscholar   +2 more sources

Igneous Rim Accretion on Chondrules in Low-velocity Shock Waves

The Astrophysical Journal, 2023
Shock-wave heating is a leading candidate for the mechanisms of chondrule formation. This mechanism forms chondrules when the shock velocity is in a certain range.
Yuji Matsumoto, Sota Arakawa
doaj   +1 more source

Bubbles to Chondrites-II. Chemical fractionations in chondrites

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
doaj   +1 more source

Constraints on Chondrule Generation, Disk Dynamics, and Asteroid Accretion from the Compositions of Carbonaceous Meteorites

Astrophysical Journal, 2021
The elemental and isotopic compositions of meteorites are expected to reflect several key processes that occurred in the early solar system, including the migration of gas and dust throughout the protoplanetary disk, the formation of chondrules, and the ...
J. Bryson, G. Brennecka
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

Implications for Chondrule Formation Regions and Solar Nebula Magnetism from Statistical Reanalysis of Chondrule Paleomagnetism

The Planetary Science Journal, 2023
Converging lines of evidence show that protoplanetary disks are complex environments hosting spatial and temporal variability at multiple scales.
Roger R. Fu, Sarah C. Steele, Jacob B. Simon, Richard Teague, Joan Najita, David Rea   +5 more
doaj   +1 more source