PALEO OCEANOGRAPHIC AND GEOCHEMICAL SEDIMENTARY ENVIRONMENTS OF UPPER VENDIAN BLACK SHALE PHOSPHORITE-BEARING DEPOSITS OF THE SOUTH-WESTERN MARGIN EAST-EUROPEAN PLATFORM
On the base of analysis of materials on geological paleooceanography of the World Ocean and factual data on ancient sedimentogenesis of "early Paleo-Tethys" for the first time the depositional environments of black shale phosphorite-bearing formation of Vendian (Kalus beds) of the Volyno-...
Збережено в:
| Дата: | 2012 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Українська |
| Опубліковано: |
Institute of Geological Sciences, NAS of Ukraine
2012
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| Теми: | |
| Онлайн доступ: | http://geojournal.igs-nas.org.ua/article/view/139127 |
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| Назва журналу: | Geological journal |
Репозитарії
Geological journal| Резюме: | On the base of analysis of materials on geological paleooceanography of the World Ocean and factual data on ancient sedimentogenesis of "early Paleo-Tethys" for the first time the depositional environments of black shale phosphorite-bearing formation of Vendian (Kalus beds) of the Volyno-Podilian monocline and adjacent regions were reconstructed. Process of phosphorogenesis of black shale deposits was genetically interrelated with sedimentation of primary producer of organic matter: plant detritus, phyto- and, possibly, zooplankton, caused by the influence of coastal upwelling, as a result of geochemical activity of biogenic triad P - С - N as a result of coastal upwellig. Deposition of these carbon-bearing deposits occurred in anoxic environment. The Late Vendian oceanic anoxic event has been indexed by the authors as "OAEV". |
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