Isotopic evidence for two chondrule generations in CR chondrites and their relationships to other carbonaceous chondrites
Among primitive meteorites, CR chondrites have peculiar isotopic compositions, the origin of
which is uncertain and may have involved contributions from primordial molecular cloud …
which is uncertain and may have involved contributions from primordial molecular cloud …
Origin of isotopic diversity among carbonaceous chondrites
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. Here …
planetesimals that formed a few million years after the beginning of the solar system. Here …
Compositional evolution of the protoplanetary disk: Oxygen isotopes of type-II chondrules from CR2 chondrites
HC Connolly Jr, GR Huss - Geochimica et Cosmochimica Acta, 2010 - Elsevier
Chondrules are the dominant component of chondritic meteorites and attest to high-
temperature transient heating events within the protoplanetary disk. They provide valuable …
temperature transient heating events within the protoplanetary disk. They provide valuable …
Distribution of 26Al in the CR chondrite chondrule-forming region of the protoplanetary disk
DL Schrader, K Nagashima, AN Krot, RC Ogliore… - … et Cosmochimica Acta, 2017 - Elsevier
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) …
isotope compositions of eight porphyritic chondrules (seven FeO-poor and one FeO-rich) …
Chromium isotopic evidence for an early formation of chondrules from the Ornans CO chondrite
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 …
blocks of planetary embryos and terrestrial planets. However, their ages and modes of …
[HTML][HTML] Magnesium and 54Cr isotope compositions of carbonaceous chondrite chondrules–Insights into early disk processes
MB Olsen, D Wielandt, M Schiller… - … et cosmochimica acta, 2016 - Elsevier
We report on the petrology, magnesium isotopes and mass-independent 54 Cr/52 Cr
compositions (μ 54 Cr) of 42 chondrules from CV (Vigarano and NWA 3118) and CR (NWA …
compositions (μ 54 Cr) of 42 chondrules from CV (Vigarano and NWA 3118) and CR (NWA …
Conditions of chondrule formation in ordinary chondrites
Chondrules are sub-millimetric spheroids that are ubiquitous in chondrites and whose
formation mechanism remains elusive. Textural and oxygen isotopic characteristics of …
formation mechanism remains elusive. Textural and oxygen isotopic characteristics of …
CV chondrites: More than one parent body
J Gattacceca, L Bonal, C Sonzogni… - Earth and Planetary …, 2020 - Elsevier
CV chondrites are one of the most studied group of carbonaceous chondrites. Based on a
number of mineralogical features, they have been divided into three sub-groups: CV OxA …
number of mineralogical features, they have been divided into three sub-groups: CV OxA …
Origin of volatile element depletion among carbonaceous chondrites
Compared to the composition of CI chondrites and the Sun, all other carbonaceous
chondrites are variably depleted in volatile elements. However, the origin of these …
chondrites are variably depleted in volatile elements. However, the origin of these …
Early evolution of the solar accretion disk inferred from Cr-Ti-O isotopes in individual chondrules
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 …
transport processes in the solar accretion disk. The meaning of these anomalies is debated …