MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL
The study is focused on micrometeorites from bottom sediments sampled from the Selenga-Buguldeika lintel of Lake Baikal. Their diatom analysis showed continuous sedimentation during the Holocene. Mineralogical analysis identified a complex of minerals, including micrometeorites, which amount to 0.6...
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2020-06-01
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| Series: | Геодинамика и тектонофизика |
| Subjects: | |
| Online Access: | https://www.gt-crust.ru/jour/article/view/1032 |
| _version_ | 1797855720839839744 |
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| author | N. I. Akulov Y. G. Vologina L. A. Pavlova S. S. Vorobyova |
| author_facet | N. I. Akulov Y. G. Vologina L. A. Pavlova S. S. Vorobyova |
| author_sort | N. I. Akulov |
| collection | DOAJ |
| description | The study is focused on micrometeorites from bottom sediments sampled from the Selenga-Buguldeika lintel of Lake Baikal. Their diatom analysis showed continuous sedimentation during the Holocene. Mineralogical analysis identified a complex of minerals, including micrometeorites, which amount to 0.6 % of the heavy fraction weight. A detailed study of the micrometeorites was carried out using a JXA8200 electron probe x-ray microanalyzer. It was established that their chemical composition is predominantly represented by Fe, O, C, and Zn, i.e. these are type 1 α-micrometeorites. Based on the difference in the chemical composition of the micrometeorites in the sedimentary strata section, it is proposed to refer to such micrometeorites not only for stratigraphic correlations, but also for impact stratigraphy schemes. |
| first_indexed | 2024-04-09T20:28:38Z |
| format | Article |
| id | doaj.art-5431ff8e64754e80b70b1811308180d7 |
| institution | Directory Open Access Journal |
| issn | 2078-502X |
| language | English |
| last_indexed | 2024-04-09T20:28:38Z |
| publishDate | 2020-06-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj.art-5431ff8e64754e80b70b1811308180d72023-03-30T20:08:04ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2020-06-0111228529510.5800/GT-2020-11-2-0474472MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKALN. I. Akulov0Y. G. Vologina1L. A. Pavlova2S. S. Vorobyova3Institute of the Earth’s Crust, Siberian Branch of RASInstitute of the Earth’s Crust, Siberian Branch of RASA.P. Vinogradov Institute of Geochemistry, Siberian Branch of RASLimnological Institute, Siberian Branch of RASThe study is focused on micrometeorites from bottom sediments sampled from the Selenga-Buguldeika lintel of Lake Baikal. Their diatom analysis showed continuous sedimentation during the Holocene. Mineralogical analysis identified a complex of minerals, including micrometeorites, which amount to 0.6 % of the heavy fraction weight. A detailed study of the micrometeorites was carried out using a JXA8200 electron probe x-ray microanalyzer. It was established that their chemical composition is predominantly represented by Fe, O, C, and Zn, i.e. these are type 1 α-micrometeorites. Based on the difference in the chemical composition of the micrometeorites in the sedimentary strata section, it is proposed to refer to such micrometeorites not only for stratigraphic correlations, but also for impact stratigraphy schemes.https://www.gt-crust.ru/jour/article/view/1032micrometeoritesand-silt sedimentsdiatom analysisimpact stratigraphylake baikal |
| spellingShingle | N. I. Akulov Y. G. Vologina L. A. Pavlova S. S. Vorobyova MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL Геодинамика и тектонофизика micrometeorite sand-silt sediments diatom analysis impact stratigraphy lake baikal |
| title | MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL |
| title_full | MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL |
| title_fullStr | MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL |
| title_full_unstemmed | MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL |
| title_short | MICROMETEORITES FROM MODERN SEDIMENTS OF THE CENTRAL PART OF LAKE BAIKAL |
| title_sort | micrometeorites from modern sediments of the central part of lake baikal |
| topic | micrometeorite sand-silt sediments diatom analysis impact stratigraphy lake baikal |
| url | https://www.gt-crust.ru/jour/article/view/1032 |
| work_keys_str_mv | AT niakulov micrometeoritesfrommodernsedimentsofthecentralpartoflakebaikal AT ygvologina micrometeoritesfrommodernsedimentsofthecentralpartoflakebaikal AT lapavlova micrometeoritesfrommodernsedimentsofthecentralpartoflakebaikal AT ssvorobyova micrometeoritesfrommodernsedimentsofthecentralpartoflakebaikal |