Daode, Wang and Yangting, Lin (1992) Inspiration from Study of Antarctic Meteorites I:Petrographic and Compositional Evidences for Early Continuous Chemical Fractionation of the Solar Nebula. Advances in Polar Science, 3 (1). pp. 1-16.
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Abstract
Bulk concentrations of Ir, OS, Co and other siderophile elements of metal phase in chondrites increase significantly with degree of oxidation, which together with Co - content of kamacite and Fa - content of olivine, reveal a continuous variation of redox in chondrites. Intermediate groups of E/H, H/L, L/LL, and LL/C, lying between E and H, H and L, L and LL, LL and C, respectively, were proposed based on Co content in kamacite, Fa value of olivine, Fs value of low - Ca pyroxene, bulk concentrations of Ir, Os and Co of metal phase and other taxonomic parameters. The discovery of intermediate groups increases the number of chemical groups of chondrites from 9 to 13. Both variation of redox in chondrites and presence of the intermediate groups of chondrites suggest a continuous chemical fractionation in the primordial solar nebula.
| Item Type: | Article |
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| Related URLs: | |
| Subjects: | Unspecified |
| Organizations: | Unspecified |
| Date Deposited: | 05 Apr 2023 09:14 |
| URI: | http://library.arcticportal.org/id/eprint/2040 |
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