STRATIGRAPHY OF PALEOZOIC SHALY-SILICEOUS AND VOLCANOSEDIMENTARY DEPOSITS AND GEOLOGIC HISTORY OF THE POLAR URALS
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dc.contributor.author | Aristov V.A. | |
dc.contributor.author | Ruzhentsev S.V. | |
dc.date.accessioned | 2021-01-29T03:39:17Z | |
dc.date.available | 2021-01-29T03:39:17Z | |
dc.date.issued | 2000 | |
dc.identifier | https://elibrary.ru/item.asp?id=13359016 | |
dc.identifier.citation | Stratigraphy and Geological Correlation, 2000, 8, 2, 109-118 | |
dc.identifier.issn | 0869-5938 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/23946 | |
dc.description.abstract | Conodonts found in shaly-siliceous and volcanosedimentary deposits of different tectonic zones of the Polar Urals provided a new insight into the Paleozoic history of the region. Shaly-siliceous deposits of the Central subzone of the Lemva zone (the Chernaya Gora Formation), which were attributed earlier to the Middle-Late Ordovician, are of the Middle Ordovician-Late Devonian age. The Grubeshor (the Middle Ordovician-Silurian) and Malyudshor (the Devonian) formations are distinguished in volcanogenic-siliceous deposits of the Grubeshor subzone. The Orang Formation of the Manitanyrd-Paipudyna zone, which is usually considered as Ordovician in age, should be attributed on the basis of conodont findings to the Famennian-Carboniferous. New data on the Paleozoic stratigraphy of the Polar Urals stimulated us to revise the idea that the region is a characteristic example of the passive continental margin. The Polar Urals represent a structure that developed in three destructive stages: the Late Cambrian-Tremadocian, Middle-Late Ordovician, and Late Devonian. It is inferred that a new oceanic basin, which is proposed to be named the Uralian-Arctic, emerged in the Late Devonian-Carboniferous at the junction of the East-European continent and the Middle Paleozoic accretionary system of the Urals. | |
dc.subject | Paleozoic | en |
dc.title | STRATIGRAPHY OF PALEOZOIC SHALY-SILICEOUS AND VOLCANOSEDIMENTARY DEPOSITS AND GEOLOGIC HISTORY OF THE POLAR URALS | |
dc.type | Статья | |
dc.subject.age | Paleozoic | en |
dc.subject.age | Палеозой | ru |
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