We review the 26Al ages of chondrules in various type 3.0 chondrites. The 26Al ages of
chondrules are 1–3 Myr after calcium‐aluminum‐rich inclusion (CAI) for LL3. 0, CO3. 0, and …

We report on the mineralogy, petrography, and in situ measured oxygen-and magnesium-
isotope compositions of eight porphyritic chondrules (seven FeO-poor and one FeO-rich) …

Chondrules from unequilibrated ordinary and carbonaceous chondrites belong to the oldest
and most primitive materials from the early solar system and record chemical and isotopic …

Renazzo-type carbonaceous (CR) chondrites are distinct from most other chondrites in
having younger chondrule 26 Al-26 Mg ages, but the significance of these ages and whether …

Abstract The 26Al–26Mg systematics of chondrules from ordinary and carbonaceous
chondrites and their implications are reviewed. The initial 26Al/27Al ratios [(26Al/27Al) 0] …

Chondrules in ordinary chondrites are considered to form in high density environments,
likely related to the evolution of protoplanets and large planetesimals. In order to determine …

Chondrules are the main components of primitive meteorites and possibly the building
blocks of planetary embryos and terrestrial planets. However, their ages and modes of …

We have conducted systematic investigations of formation age, chemical compositions, and
mineralogical characteristics of ferromagnesian chondrules in Yamato-81020 (CO3. 05) …

Chondrites are fragments of asteroids that avoided melting and, thus, provide a record of the
material that accreted to form protoplanets. The dominant constituent of chondrites are …

Among primitive meteorites, CR chondrites have peculiar isotopic compositions, the origin of
which is uncertain and may have involved contributions from primordial molecular cloud …