Abstract-A corundum-hibonite inclusion, BB-5, has been found in the Murchison carbonaceous chon-drite. This is the first reported occurrence of corundum as a major phase in any refractory inclusion, even though this mineral is predicted by thermodynamic calculations to be the first condensate from a cooling gas of solar composition. Ion microprobe measurements of Mg isotopic compositions yield the unexpected result for such an early condensate that *6Mg excesses are small: 6,v*6Mg = 7.0 f 1.6%0 for hibonite and 5.0 + 4.8Ao for corundum, despite very large *‘Al/“‘Mg ratios, 130 and 2.74 X IO“, re-spectively. Within the errors, 6N26Mg does not vary over this exceedingly large range of 27Al/*4Mg ratios. The extreme temperature required to melt...
Abstract- Hibonite-bearing Ca,AI-rich inclusions (CA ls) usually occur in e M and CH chondrites and ...
Abstract-Vigarano 1623-S is a forsterite-bearing refractory inclusion in which oxygen, magnesium, an...
Preliminary analysis of two unusual calcium-aluminum inclusions (CAIs) from separate CV3 chondritic ...
Through freeze-thaw disaggregation of the Murchison (CM) carbonaceous chondrite, we have recovered a...
On the basis of anomalous isotopic compositions of oxygen and magnesium, 14 oxide grains from two pr...
A ∼175 µm refractory inclusion, A-COR-01 from one of the least altered carbonaceous chondrites, ALHA...
The refractory element-enriched inclusions found in the carbonaceous meteorites give cosmochemists a...
Abstract-The ion microprobe has been used to determine the concentrations of a number oftrace elemen...
We report petrography, mineral chemistry, bulk chemistry, and bulk isotopic compositions of a suite ...
Abstract–Equilibrium thermodynamic calculations of the sequence of condensation of phases from a coo...
Type C inclusions are plagioclase-rich, Ca-, Al-rich inclusions found in carbonaceous chondrites. Th...
Type C inclusions are plagioclase-rich, Ca-, Al-rich inclusions found in carbonaceous chondrites. Th...
Refractory metal nuggets (RMNs) contain elements, such as Os, Ir, Mo, and Ru, which are predicted to...
International audienceBased on the high abundance of fine-grained material and its dark appearance, ...
Abstract-Samples from ten refractory inclusions in Murchison, some of which are splits of inclusions...
Abstract- Hibonite-bearing Ca,AI-rich inclusions (CA ls) usually occur in e M and CH chondrites and ...
Abstract-Vigarano 1623-S is a forsterite-bearing refractory inclusion in which oxygen, magnesium, an...
Preliminary analysis of two unusual calcium-aluminum inclusions (CAIs) from separate CV3 chondritic ...
Through freeze-thaw disaggregation of the Murchison (CM) carbonaceous chondrite, we have recovered a...
On the basis of anomalous isotopic compositions of oxygen and magnesium, 14 oxide grains from two pr...
A ∼175 µm refractory inclusion, A-COR-01 from one of the least altered carbonaceous chondrites, ALHA...
The refractory element-enriched inclusions found in the carbonaceous meteorites give cosmochemists a...
Abstract-The ion microprobe has been used to determine the concentrations of a number oftrace elemen...
We report petrography, mineral chemistry, bulk chemistry, and bulk isotopic compositions of a suite ...
Abstract–Equilibrium thermodynamic calculations of the sequence of condensation of phases from a coo...
Type C inclusions are plagioclase-rich, Ca-, Al-rich inclusions found in carbonaceous chondrites. Th...
Type C inclusions are plagioclase-rich, Ca-, Al-rich inclusions found in carbonaceous chondrites. Th...
Refractory metal nuggets (RMNs) contain elements, such as Os, Ir, Mo, and Ru, which are predicted to...
International audienceBased on the high abundance of fine-grained material and its dark appearance, ...
Abstract-Samples from ten refractory inclusions in Murchison, some of which are splits of inclusions...
Abstract- Hibonite-bearing Ca,AI-rich inclusions (CA ls) usually occur in e M and CH chondrites and ...
Abstract-Vigarano 1623-S is a forsterite-bearing refractory inclusion in which oxygen, magnesium, an...
Preliminary analysis of two unusual calcium-aluminum inclusions (CAIs) from separate CV3 chondritic ...