PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME
The article notes that during the Quaternary period there was at least 5—6 glaciations, which each time entailed a sharp change in the ecological and hydrological situation both in the Caspian Sea and in the Black Sea. The change in temperature and salinity of the waters was reflected both in the co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Publisher House Akademperiodyka
2019-12-01
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| Series: | Геологія і корисні копалини Світового океану |
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| _version_ | 1827852779879661568 |
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| author | Yu.I. Inozemtsev O.O. Paryshev L.V. Stupina E.N. Rybak |
| author_facet | Yu.I. Inozemtsev O.O. Paryshev L.V. Stupina E.N. Rybak |
| author_sort | Yu.I. Inozemtsev |
| collection | DOAJ |
| description | The article notes that during the Quaternary period there was at least 5—6 glaciations, which each time entailed a sharp change in the ecological and hydrological situation both in the Caspian Sea and in the Black Sea. The change in temperature and salinity of the waters was reflected both in the composition of the fauna and in the lithological composition of the deposited sediments. During the cooling period, the Black Sea and the Caspian Sea regressed, they were isolated from each other, as well as from the World Ocean due to the presence of the Bosphorus threshold up to a mark of –36…–37 m. During the period of global warming, the level of the World Ocean returned each time to approximately the present mark, which was also characteristic of the Black and Caspian Seas. The tendency of level fluctuations in the indicated basins was of the same type, but the rate of these fluctuations, especially at the transgression stage, had sharp differences. This is especially pronounced in the Caspian Sea, in which the level from the –13 m mark about 17 thousand years ago rose to zero, –2 m about 15,5 thousand years ago. The level of the World Ocean during this period of time rose only to the –90 m mark. The Black Sea was also in a transgressive state, but its level was determined by the height of the Bosphorus threshold. This follows from the fact that inland basins were much faster than the oceans in their filling rate. The nature of the mutual penetration of the Mediterranean and Caspian fauna into the Black Sea was determined by the state of overdeepening of the Manych Valley, the Kerch and Bosphorus Strait, which is confirmed by the presence of the Caspian fauna of the Chaudino type in the Sea of Marmara (Gallipoli), and the Mediterranean fauna (Cardium edule L.) in the East of Manych, the Northwest Caspian (ChaudoBaku time) and the Caspian Sea — In the Holocene. |
| first_indexed | 2024-03-12T10:55:11Z |
| format | Article |
| id | doaj.art-1227722973a54387b92c706430067ce0 |
| institution | Directory Open Access Journal |
| issn | 1999-7566 2664-5947 |
| language | English |
| last_indexed | 2024-03-12T10:55:11Z |
| publishDate | 2019-12-01 |
| publisher | Publisher House Akademperiodyka |
| record_format | Article |
| series | Геологія і корисні копалини Світового океану |
| spelling | doaj.art-1227722973a54387b92c706430067ce02023-09-02T06:25:39ZengPublisher House AkademperiodykaГеологія і корисні копалини Світового океану1999-75662664-59472019-12-011543656https://doi.org/10.15407/gpimo2019.04.036PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIMEYu.I. Inozemtsev0O.O. Paryshev1L.V. Stupina2E.N. Rybak3Center for Problems of Marine Geology, Geoecology and Sedimentary Ore Formation of the National Academy of Sciences of UkraineCenter for Problems of Marine Geology, Geoecology and Sedimentary Ore Formation of the National Academy of Sciences of UkraineCenter for Problems of Marine Geology, Geoecology and Sedimentary Ore Formation of the National Academy of Sciences of UkraineCenter for Problems of Marine Geology, Geoecology and Sedimentary Ore Formation of the National Academy of Sciences of UkraineThe article notes that during the Quaternary period there was at least 5—6 glaciations, which each time entailed a sharp change in the ecological and hydrological situation both in the Caspian Sea and in the Black Sea. The change in temperature and salinity of the waters was reflected both in the composition of the fauna and in the lithological composition of the deposited sediments. During the cooling period, the Black Sea and the Caspian Sea regressed, they were isolated from each other, as well as from the World Ocean due to the presence of the Bosphorus threshold up to a mark of –36…–37 m. During the period of global warming, the level of the World Ocean returned each time to approximately the present mark, which was also characteristic of the Black and Caspian Seas. The tendency of level fluctuations in the indicated basins was of the same type, but the rate of these fluctuations, especially at the transgression stage, had sharp differences. This is especially pronounced in the Caspian Sea, in which the level from the –13 m mark about 17 thousand years ago rose to zero, –2 m about 15,5 thousand years ago. The level of the World Ocean during this period of time rose only to the –90 m mark. The Black Sea was also in a transgressive state, but its level was determined by the height of the Bosphorus threshold. This follows from the fact that inland basins were much faster than the oceans in their filling rate. The nature of the mutual penetration of the Mediterranean and Caspian fauna into the Black Sea was determined by the state of overdeepening of the Manych Valley, the Kerch and Bosphorus Strait, which is confirmed by the presence of the Caspian fauna of the Chaudino type in the Sea of Marmara (Gallipoli), and the Mediterranean fauna (Cardium edule L.) in the East of Manych, the Northwest Caspian (ChaudoBaku time) and the Caspian Sea — In the Holocene.blackazovcaspian seasstratigraphypaleogeography |
| spellingShingle | Yu.I. Inozemtsev O.O. Paryshev L.V. Stupina E.N. Rybak PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME Геологія і корисні копалини Світового океану black azov caspian seas stratigraphy paleogeography |
| title | PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME |
| title_full | PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME |
| title_fullStr | PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME |
| title_full_unstemmed | PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME |
| title_short | PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME |
| title_sort | paleogeography of the azov black sea basin in quaternary time |
| topic | black azov caspian seas stratigraphy paleogeography |
| work_keys_str_mv | AT yuiinozemtsev paleogeographyoftheazovblackseabasininquaternarytime AT ooparyshev paleogeographyoftheazovblackseabasininquaternarytime AT lvstupina paleogeographyoftheazovblackseabasininquaternarytime AT enrybak paleogeographyoftheazovblackseabasininquaternarytime |