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Basalts of the Zhom-Bolok Lava River as a Possible Sources of Metallic Iron in Sediments of Local Lakes: Thermomagnetic and Microprobe Justificationстатья
- Авторы: Pechersky D.M., Kazansky A.Y., Kozlovsky A., Markov G.P., Shchetnikov A.A., Tselmovich V.A.
- Журнал: Springer Geophysics
- Год издания: 2019
- DOI: 10.1007/978-3-319-90437-5_22
- Аннотация: The results of thermomagnetic and microprobe studies of basalts of the Zhom-Bolok lava river (East Sayan) are given in the article. On the example of the Zhom-Bolok basalt lava river the process of settling of metallic iron particles in a basaltic lava has been demonstrated. Some of examples show the distribution of metallic iron particles during their settling within basaltic lava flows. It has been shown that the main source of metallic iron in lake sediments is the volcanic rocks of the Zhom-Bolok basaltic lava river, detrital material being created through erosion and weathering. Out of numerous studied objects Zhom-Bolok region is a single example of significant enrichment of sediments with metallic iron of terrestrial origin in the immediate vicinity of large eruptions of basaltic lava. Accordingly the halo of scattering of metallic iron particles from the centers of volcanic eruptions and/or the fall of large meteorites and other cosmic bodies to Earth is very limited.
- Добавил в систему: Цельмович Владимир Анатольевич