MICROFOSSILS FROM RELICT MESOARCHEAN PALEOSOL DEVELOPED ON KOMATIITES FROM KOIKARY AREA, CENTRAL KARELIA

• Main Authors: Светлана Юрьевна Чаженгина, Александра Владимировна Бакаева, Зоя Павловна Рыбникова, Павел Владимирович Медведев, Сергей Анатольевич Светов, Svetlana Chazhengina, Alexandra Bakaeva, Zoya Rybnikova, Pavel Medvedev, Sergey Svetov
• Format: Article
• Language: English
• Published: Karelian Research Centre of the Russian Academy of Sciences 2017-11-01
• Series: Transactions of the Karelian Research Centre of the Russian Academy of Sciences
• Subjects: микрофоссилии, мезоархей, кора выветривания, коматииты, фенноскандинавский щит
• Online Access: http://journals.krc.karelia.ru/index.php/precambrian/article/view/683
• ISSN: 1997-3217; 2312-4504

<p>Relics of the paleosol of Mesoarchean age (3000–2930 Ma) developed on tuffs and lavas of komatiites from Koikary Area (Central Karelia) were studied. Microscopic tubular and spherical structures morphologically similar to fossilized remnants of microorganisms were found in the preserved part of the crust profile, represented by a layer of chloritite. The nature of these micro structures and the possibility of their interpretation as acidophilic bacteria inhabiting the land in the zone of chemical weathering of volcanic rocks are discussed.</p>