Results 61 to 70 of about 1,937 (173)
Chondrules and their origins [PDF]
, 1982 Chondrule parent materials, chondrule formation, and post-formational history are addressed. Contributions involving mineralogy petrology, geochemistry, geochronology, isotopic measurements, physical measurements, experimental studies, and theoretical ...
core
Oring of chondrules at Jovian resonances [PDF]
, 1998 Isotopic dating indicates that chondrules were produced a few million years after the solar nebula formed. This timing is incompatible with dynamical lifetimes of small particles in the nebula and short time scales for the formation of planetesimals ...
HOOD L. L. +2 more
core +1 more source
Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1610-1626, July 2026.Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis +5 more
wiley +1 more source
Alkali elemental and potassium isotopic compositions of Semarkona chondrules [PDF]
, 2005 We report measurements of K isotope ratios in 28 Semarkona chondrules with a wide range of petrologic types and bulk compositions as well as the compositions of CPX-mesostasis pairs in 17 type I Semarkona chondrules, including two chondrules with radial ...
Grossman, J. N., Alexander, C. M. O'd.
core +3 more sources
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
doaj +1 more source
YARATKULOVO – A NEW H-CHONDRITE IN THE URALS: MINERALOGICAL DATA [PDF]
Минералогия, 2017 The Yaratkulovo meteorite was found in 2016 in the Argayash district of the Chelyabinsk region. It is a «chondrite breccia», in which the light coarse-grained fragments (primary chondrite) occur in the dark fine-grained matrix (impact assemblages ...
V.V. Sharygin, S.V. Kolisnichenko
doaj
Iron Isotope Constraints on the Structure of the Early Solar System
The Astrophysical Journal Letters, 2023 The recent advent of nontraditional isotopic systems has revealed that meteorites display a fundamental isotopic dichotomy between noncarbonaceous (NC) and carbonaceous (C) groups, which represent material from the inner and outer solar system ...
Yves Marrocchi +2 more
doaj +1 more source
Anhydrous minerals in asteroid Bennu: Evidence for well‐preserved primordial components
Meteoritics &Planetary Science, Volume 61, Issue 6, Page 963-986, June 2026.Abstract Aqueously altered carbonaceous astromaterials are dominated by secondary minerals, but a minor fraction of primary, anhydrous silicates and oxides escape alteration, offering insight into the original composition of asteroid parent bodies. We report the mineralogy, petrology, mineral chemistry, and oxygen isotopes of anhydrous minerals—50 ...
S. S. Russell +23 more
wiley +1 more source
Pre-irradiation of chondrules in the Early Solar System [PDF]
, 2014 Noble gases in meteorites contain a “cosmogenic” component which is due to their exposure to cosmic rays. Cosmogenic noble gases (like radionuclides) are generally produced during the time a meteoroid travels from its parent body to encounter with earth ...
Beyersdorf-Kuis, Uta
core +1 more source
Marc Chaussidon—Leonard Medal 2026
Meteoritics &Planetary Science, EarlyView.
François Robert
wiley +1 more source