Microspheres in the Silurian of the Altai Mountains: Morphology, Chemical Composition, Biomineralization, and Genesis

Autor: N. V. Sennikov, N. V. Novozhilova, R. A. Khabibulina, V. A. Luchinina
Rok vydání: 2022
Předmět:
Zdroj: Paleontological Journal. 56:106-116
ISSN: 1555-6174
0031-0301
DOI: 10.1134/s0031030122010105
Popis: Abstract The study of Silurian sediments in the central part of the Altai Mountains (Gorny Altai) by limestone dissolution has revealed two groups of spherical objects; large microspheres 90–120 µm and small nanofossils (nanospheres) 5–18 µm in diameter. Their double-layered walls are composed of standard-sized siderite microcrystals replaced by goethite. The Altai microspheres have a low Ca content (
Databáze: OpenAIRE
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