Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements
The paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4). Olivine corresponds to forsterite and is rather heterogeneous (Fo 73-77). No differences in the content...
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2022-07-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/15827?setLocale=en_US |
| _version_ | 1797947261794123776 |
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| author | Kristina G. Sukhanova Anton B. Kuznetsov Olga L. Galankina |
| author_facet | Kristina G. Sukhanova Anton B. Kuznetsov Olga L. Galankina |
| author_sort | Kristina G. Sukhanova |
| collection | DOAJ |
| description | The paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4). Olivine corresponds to forsterite and is rather heterogeneous (Fo 73-77). No differences in the content of the major elements in the olivine of the chondrule and the matrix of the meteorite were found. However, the content of major and trace elements in olivine within chondrules varies considerably; high values found in olivine from barred chondrules. Olivine from porphyritic chondrules and the matrix of the Saratov meteorite have similar concentrations of trace elements. High concentrations of refractory (Zr, Y, Al) and moderately volatile (Sr and Ba) trace elements in barred olivine chondrule indicate the chondrule melt formation due to the melting of precursor minerals and its rapid cooling in the protoplanetary disk, which is consistent with the experimental data. The olivine of the chondrules center of the Saratov meteorite differs from the olivine of the chondrules rims and meteorite matrix by the increased values of the Yb/La ratio. No relict grains and magnesian cores of olivine were found in meteorite chondrules. Individual grains in the chondrules are distinguished by their enrichment in trace elements relative to the rest of the olivine grains in the chondrule. |
| first_indexed | 2024-04-10T21:25:01Z |
| format | Article |
| id | doaj.art-6a6b144717784018bba3f60ef8e569be |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:25:01Z |
| publishDate | 2022-07-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-6a6b144717784018bba3f60ef8e569be2023-01-20T02:04:52ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042022-07-0125414915710.31897/PMI.2022.3915827Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elementsKristina G. Sukhanova0https://orcid.org/0000-0002-2959-2922Anton B. Kuznetsov1https://orcid.org/0000-0002-2959-2922Olga L. Galankina2https://orcid.org/0000-0003-2761-2835Institute of Precambrian Geology and Geochronology RASInstitute of Precambrian Geology and Geochronology RASInstitute of Precambrian Geology and Geochronology RASThe paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4). Olivine corresponds to forsterite and is rather heterogeneous (Fo 73-77). No differences in the content of the major elements in the olivine of the chondrule and the matrix of the meteorite were found. However, the content of major and trace elements in olivine within chondrules varies considerably; high values found in olivine from barred chondrules. Olivine from porphyritic chondrules and the matrix of the Saratov meteorite have similar concentrations of trace elements. High concentrations of refractory (Zr, Y, Al) and moderately volatile (Sr and Ba) trace elements in barred olivine chondrule indicate the chondrule melt formation due to the melting of precursor minerals and its rapid cooling in the protoplanetary disk, which is consistent with the experimental data. The olivine of the chondrules center of the Saratov meteorite differs from the olivine of the chondrules rims and meteorite matrix by the increased values of the Yb/La ratio. No relict grains and magnesian cores of olivine were found in meteorite chondrules. Individual grains in the chondrules are distinguished by their enrichment in trace elements relative to the rest of the olivine grains in the chondrule.https://pmi.spmi.ru/index.php/pmi/article/view/15827?setLocale=en_USordinary chondritestrace elementsolivinepyroxeneplagioclaseion microprobe |
| spellingShingle | Kristina G. Sukhanova Anton B. Kuznetsov Olga L. Galankina Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements Записки Горного института ordinary chondrites trace elements olivine pyroxene plagioclase ion microprobe |
| title | Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements |
| title_full | Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements |
| title_fullStr | Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements |
| title_full_unstemmed | Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements |
| title_short | Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements |
| title_sort | features of olivine crystallization in ordinary chondrites saratov meteorite geochemistry of trace and rare earth elements |
| topic | ordinary chondrites trace elements olivine pyroxene plagioclase ion microprobe |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/15827?setLocale=en_US |
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