Chapter 7. Early Precambrian Ferruginous Quartzites (Jaspilites)
Pleiades Publishing Ltd - 2024
Tóm tắt
Microfossils of presumably bacterial origin were found in 2.7–2.8 Ga banded ferruginous quartzites in Karelia and the Kola Peninsula. The determination of organic carbon content and balance calculations showed that these ferruginous quartzites accumulated in an organic-rich environment. A comparative analysis of the morphology of modern and Neoarchaean microorganisms suggests the bacterial origin of some of the magnetite in the studied quartzites.
Từ khóa
Tài liệu tham khảo
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