Lithostratigraphy of the Middle Ordovician (Darriwilian) deposits of the Volkhov River, NorthWest Russia: 1. Kunda Regional Stage
https://doi.org/10.52349/0869-7892_2023_96_5-26
Abstract
We propose a detailed lithostratigraphic description of the key section of the Kunda Regional Stage (Middle Ordovician) on the Volkhov River. The section is subdivided into 35 beds, grouped into 8 members; the lowerest Khamontovo Member belongs to the Volkhov Formation, the overlying Yakhnovo, Syas, Zvanka, Izvoz, Ilinskoye, Chernavino and Simankovo Members form the Obukhovo Formation. The lower and upper “Oolite Beds” are considered only as informal subdivisions. The lithological markers (bed boundaries, discontinuity surfaces, etc.) are compared with trilobite zones and serve for a detailed correlation of Kunda deposits along the Ingermanland Klint (more than 200 km).
About the Author
G. S. Iskül
A. P. Karpinsky Russian Geological Research Institute (Karpinsky Institute)
Russian Federation
Russian Federation
Georgy Sergeevitch Iskül, Candidate of Geological and Mineralogical Sciences, Researcher
199106; 74 Sredny Prospect; St. Petersburg
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Review
For citations:
Iskül G.S. Lithostratigraphy of the Middle Ordovician (Darriwilian) deposits of the Volkhov River, NorthWest Russia: 1. Kunda Regional Stage. Regional Geology and Metallogeny. 2023;(96):5-26. (In Russ.) https://doi.org/10.52349/0869-7892_2023_96_5-26
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