| Issue |
E3S Web Conf.
Volume 486, 2024
IX International Conference on Advanced Agritechnologies, Environmental Engineering and Sustainable Development (AGRITECH-IX 2023)
|
|
|---|---|---|
| Article Number | 07009 | |
| Number of page(s) | 8 | |
| Section | Biodiversity, Agroforestry and Ecosystem Stability for Sustaining the Natural Area | |
| DOI | https://doi.org/10.1051/e3sconf/202448607009 | |
| Published online | 07 February 2024 | |
Unusual specimens from Estonia
1 Karelian research center of Russian academy of sciences Institute of geology, 11, Pushkinskaya st., Petrozavodsk, 185910, Russia
2 Independent researcher, Tallinn, Estonia
3 Russian State University of Oil and Gas, 65, Leninsky Avenue, Moscow, 119991, Russia
* Corresponding author: bbz1801@mail.ru
Samples of metal and glass found in 2019 in the vicinity of Tallinn are described. The structure, composition and properties of the samples were analyzed. According to their structural and chemical characteristics, the samples belong to the same parent body and differ from representatives of known groups of iron meteorites, artificial ferroalloys, technical and natural glasses. The glass matrix of the samples contains “folds” and “stripes”. Metallic inclusions in glass predominantly consist of alpha iron with an admixture of troilite. Carbon inclusions predominate in the metal matrix of the samples. Analogues of the material composition of the samples are protvanites. The possible cosmic origin of the samples is confirmed by surface regmaglypts, fullerenes, other carbon phases and cohenite.
© The Authors, published by EDP Sciences, 2024
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