Stratigraphy and lithology
Article # 24_2023 submitted on 06/02/2023 displayed on website on 06/30/2023
20 p.
pdf Calcareous algae of the Visean-Serpukhovian boundary beds in the Izyayu River section (south of the Chernyshev Uplift)
We consider changes in the composition of the algaflora in the Visean-Serpukhovian boundary interval in the Izyayu River section. A transgressive trend in changing sedimentation conditions - from extremely shallow water at the end of the Visean to moderately deep water at the end of the Early and early Late Serpukhovian - is observed for the section as a whole. This change in sedimentation conditions led to a consistent reduction in the abundance and diversity of calcareous algae. In general, the composition of the Late Visean-Early Serpukhovian algaflora in the Izyayu River section corresponds to warm shallow-water conditions.

Keywords: calcareous algae, changing sedimentation conditions, Lower Carboniferous, Chernyshev Uplift.
article citation Vevel Ya.A., Ivanova R.M., Gruzdev D.A., Zhuravlev A.V. Vodorosli pogranichnykh otlozheniy vizeyskogo i serpukhovskogo yarusov v razreze na r. Iz"yayu (yug podnyatiya Chernysheva) [Calcareous algae of the Visean-Serpukhovian boundary beds in the Izyayu River section (south of the Chernyshev Uplift)]. Neftegazovaya Geologiya. Teoriya I Praktika, 2023, vol. 18, no. 2, available at: http://www.ngtp.ru/rub/2023/24_2023.html EDN: ZSZTYM
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