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pro vyhledávání: '"N. A. Goltsin"'
Publikováno v:
Литология и полезные ископаемые. :149-164
The Maksovo metasapropelite deposit, which contains shungite matter and is called maksovite, is located in the eastern Onega structure. The deposit is a diapiric fold which formed ca. 2070±10 Ma ago. It is underlain by carbonate rocks and overlain b
Publikováno v:
Geochemistry International. 56:1341-1353
The paper presents first nitrogen isotope analyses in shungites sampled from the core material of boreholes and from adits in the Onega region, Russia. The samples represent all varieties of the rocks, both stratified and migrated, with concentration