TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 Semarkona

@article{Singerling2022TEMAO,
  title={TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 Semarkona},
  author={Sheryl A Singerling and Larry R. Nittler and Jens Barosch and Elena Dobrică and Adrian J. Brearley and Rhonda M. Stroud},
  journal={Geochimica et Cosmochimica Acta},
  year={2022}
}
2 Citations

References

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TEM Analyses of Unusual Presolar Silicon Carbide: Insights into the Range of Circumstellar Dust Condensation Conditions

Presolar silicon carbide (SiC) grains in meteoritic samples can help constrain circumstellar condensation processes and conditions in C-rich stars and core-collapse supernovae (CCSNe). This study

MINERALOGY OF PRESOLAR SILICATE AND OXIDE GRAINS OF DIVERSE STELLAR ORIGINS

We report the chemical and structural analysis of nine presolar silicate grains and one presolar oxide grain from the ungrouped chondrite Acfer 094 and the CR chondrite Queen Alexandra Range 99177.

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Raster ion imaging of the oxygen isotopes with the NanoSIMS ion microprobe has been used to identify presolar grains in two primitive meteorites. Eleven presolar silicates and eight presolar oxides

COORDINATED ANALYSES OF PRESOLAR GRAINS IN THE ALLAN HILLS 77307 AND QUEEN ELIZABETH RANGE 99177 METEORITES

We report the identification of presolar silicates (∼177 ppm), presolar oxides (∼11 ppm), and one presolar SiO2 grain in the Allan Hills (ALHA) 77307 chondrite. Three grains having Si-isotopic

Presolar grains in primitive ungrouped carbonaceous chondrite Northwest Africa 5958

We report a correlated NanoSIMS‐transmission electron microscopy study of the ungrouped carbonaceous chondrite Northwest Africa (NWA) 5958. We identified 10 presolar SiC grains, 2 likely presolar

Structure, Elemental Composition and Isotopic Composition of Presolar Silicates in MET 00426

Introduction: Other than nanodiamonds, silicates are the most abundant circumstellar condensate grains found in meteorites and interplanetary dust particles [1]. Laboratory analyses of these grains

Presolar Silica Grains in Meteorites: Identification of a Supernova Silica Grain in the CO3.0 Chondrite LaPaz 031117

INTRODUCTION. The use of Auger spectroscopy to characterize the elemental compositions of presolar grains in primitive extraterrestrial materials (meteorites, interplanetary dust particles, Antarctic
...