Low-Temperature Magnetic Properties and Magnetic Mineralogy of the Ropruchey Sill (Russian Karelia)

Andrei Kosterov, Elena S. Sergienko, Petr V. Kharitonskii, Svetlana Yu. Yanson, Irina A. Vasilieva

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике

Аннотация

We report low-temperature magnetic properties of predominantly mafic rocks from the Mesoproterozoic Ropruchey sill, Karelia. Based on microscopic observations, the studied rocks can be classified into two groups, granodiorites and gabbro-diorites, with different magnetic mineralogy. In granodiorites, the only magnetic mineral is stoichiometric magnetite characterized by a Verwey transition temperature of 120–121 K. In gabbro-diorites, the magnetic mineralogy is also dominated by magnetite, which however contains 2–3% of Ti substitution atoms, lowering the Verwey transition temperature to 94–103 K. In addition, the gabbro-diorites appear to contain some amount of a more Ti-rich titanomagnetite, as well as another, yet unidentified magnetic phase, manifesting itself by a peculiar temperature and frequency-dependent behavior of magnetic susceptibility.
Язык оригиналаанглийский
Название основной публикацииRecent Advances in Rock Magnetism, Environmental Magnetism and Paleomagnetism
Подзаголовок основной публикацииInternational Conference on Geomagnetism, Paleomagnetism and Rock Magnetism (Kazan, Russia)
РедакторыD.K. Nurgaliev, V.P. Shcherbakov, A. Kosterov, S. Spassov
Место публикацииCham
ИздательSpringer Nature
Глава16
Страницы205-223
ISBN (электронное издание)9783319904375
ISBN (печатное издание)9783319904368
DOI
СостояниеОпубликовано - 2019

Серия публикаций

НазваниеSpringer Geophysics

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    Kosterov, A., Sergienko, E. S., Kharitonskii, P. V., Yanson, S. Y., & Vasilieva, I. A. (2019). Low-Temperature Magnetic Properties and Magnetic Mineralogy of the Ropruchey Sill (Russian Karelia). В D. K. Nurgaliev, V. P. Shcherbakov, A. Kosterov, & S. Spassov (Ред.), Recent Advances in Rock Magnetism, Environmental Magnetism and Paleomagnetism: International Conference on Geomagnetism, Paleomagnetism and Rock Magnetism (Kazan, Russia) (стр. 205-223). (Springer Geophysics ). Springer Nature. https://doi.org/10.1007/978-3-319-90437-5_16