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Background magnetic component of Holocene cosmic dust allocated from peatстатья Исследовательская статья
- Авторы: Tselmovich V.A., Kurazhkovskii A.Yu
- Сборник: In: Nurgaliev D., Shcherbakov V., Kosterov A., Spassov S. (eds) Recent Advances in Rock Magnetism, Environmental Magnetism and Paleomagnetism. Springer Geophysics. Springer, Cham
- Год издания: 2019
- Первая страница: 467
- Последняя страница: 475
- DOI: 10.1007/978-3-319-90437-5_31
- Аннотация: Cores taken from peat deposits were used to study the variations cosmogenic dust on the Earth’s surface. In accordance with the amount of cosmogenic dust in various layers of the peat deposits, the dust flux intensity was conventionally divided into low (background) and high (burst) by means of saturation remanence intensity. Further, the mineralogical composition of the background component of cosmic dust has been studied by energy dispersive scanning electron microscopy on magnetic separates. It was found that its composition is mainly limited to the presence of magnetite spherules and iron. In contrast, when bursts occur, cosmic dust consists of a wide range of metallic particles as well as particles containing carbon and silicon. Probably, the sources of background and cosmic matter bursts are different.
- Добавил в систему: Цельмович Владимир Анатольевич