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Zhizn Zemli [Life of the Earth] 46, no 1
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Zhizn Zemli [Life of the Earth] 46, no 1

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DOI

10.29003/m3773.0514-7468.2024_46_1/48-59

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Authors:

Ivanov, A.V.

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Lower Cretaceous, Aptian deposits, Saratov Volga region, ecosystem, oryctocenosis, ammonites, bivalves, gastropods, ichnofossils.

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Ivanov, A.V., “Coastal ecosystem of the Aptian sea basin in the region of the Yelshan-Kurdyum uplift (Saratov Volga region)”, Zhizn Zemli [Life of the Earth] 46, no 1, 48–59 (2024) (in Russ., abstract in Engl.). DOI: 10.29003/m3773.0514-7468.2024_46_1/48-59.

COASTAL ECOSYSTEM OF THE APTIAN SEA BASIN IN THE REGIONOF THE YELSHAN-KURDYUM UPLIFT (SARATOV VOLGA REGION)

The article presents the results of studies of a number of sections of Lower Cretaceous (Aptian) deposits in the Saratov Right Bank region (settlements Krasnyi Oktyabr’, Doktorovka, Kurdyum and Shirokoe), confined to the Yelshano-Kurdyum uplift. Oryctocenosis combines autochthonous (ichnofossils), subautochthonous (bivalves and gastropods) and allochthonous (ammonites, wood fragments) elements. Sedimentological and mineralogical indicators (ripple marks, desiccation cracks, wedge-shaped structures, cross-bedding, glauconite, and calcite veinlets), as well as fossil remains and features of their taphonomy, allow us to diagnose the coastal ecosystem of the epicontinental sea basin. In the ecosystem format, we see a variety of physico-geographical situations: areas of the bottom which are periodically actively bioturbated and hydrodynamically transformed into mature hardground; zones of active hydrodynamics with the formation of cross-bedding; and zones of subaerial surfaces with the possible development of stick soils. Reconstruction of the paleoecosystem is complicated by the presence of a number of natural facts that have not been unambiguously interpreted, images of which are given in the article. The studied sections are of interest from the standpoint of geoheritage. Selected natural facts are actively involved in the development of a number of geoscientific university museums.

Список литературы

  1. Baraboshkin, Ye.Yu., Mikhailova, I.A., “New stratigraphic scheme of the Lower Aptian of the Middle Volga region”, Stratigrafia. Geologicheskaya korellyatsiya 10 (6), 82–105 (2002) (in Russian).
  2. Glazunova, A.Ye., Paleontological substantiation of the stratigraphic division of the Cretaceous deposits of the Volga region. Lower Cretaceous (Moscow: Nedra, 1973) (in Russian).
  3. Golovinova, M.A., Guzhov, A.V., “Early Cretaceous gastropods of the Middle and Lower Volga region from the collection of P.A. Gerasimova”, Paleontologicheskiy J. 5, 31–36 (2009) (in Russian).
  4. Grishanov, A.V., “Paleomagnetic section of Cretaceous deposits of the Saratov Right Bank”, Voprosy geologii Yuzhnogo Urala i Povolzhia. Stratigraficheskiye i litologicheskiye issledovaniya (Saratov: Sarat. Univers., 1984) (in Russian).
  5. Ivanov, A.V., “Problematic formations from sandy Aptian deposits of the Saratov Volga region”, Cretaceous system of Russia and neighboring countries: problems of stratigraphy and paleogeography. Materials of the third all-Russian meeting (Saratov: Publishing house SО EAGO, 2006) (in Russian).
  6. Ivanov, A.V., Yashkov, I.A., Romanova, Ye.G., Museum of Natural History of Gagarin University. Quick guide (Saratov: Kuznitsa reklamy, 2019) (in Russian).
  7. Ivanov, A.V., Yashkov, I.A., Smurov, A.V., Snakin, V.V., Kolotilova, N.N., Kozachek, A.V., Maksimova, Ye.Ye., “Mobile exhibitions in a scientific and educational expedition as a driver for the development of a youth museum: the experience of the “Flotilla of Floating Universities”, Zhizn Zemly [Life of the Earth] 45 (4), 573–583. DOI 10.29003/m28.0514-7468 (in Russian).
  8. Ivanova, A.N., “Bivalves, gastropods and belemnites of the Jurassic and Cretaceous deposits of the Saratov Volga region”, Stratigraphy and fauna of Jurassic and Cretaceous deposits of the Saratov Volga region (Leningrad: Izdatel’stvo neftyanoy literatury, 1959) (in Russian).
  9. Kokovkin, A.A., Ivanov, A.V., Tyuleneva, V.M., Yashkov, I.A., “Tectonics, seismotectonics and hydrothermal metasomatism in the newest structure of the Volga (Saratov-Kamyshin) Right Bank: new data”, Otechestvennaya geologiya 6, 51–66 (2018) (in Russian).
  10. Mordvilko, T.A., Early Cretaceous thecodont bivalves of the South of the USSR (arcticids and glossites) (Moscow: Nauka, 1979) (in Russian).
  11. Panichev, A.M., Ivanov, A.V., Chekryzhov, I.Yu., Yashkov, I.A., Ivanov, V.V., “Geochemical features of siliceous and siliceous carbonate metasomatitis in chalk and paleogene deposits of the Lower Volga”, Zhizn Zemly [Life of the Earth] 43 (1), 4–19 (2021). DOI: 10.29003/m1990.0514-7468.2020_43_1/4-19 (in Russian).
  12. Pchelintsev, V.F., “Gastropods of the Albian Stage of Sokolovaya Gora near Saratov”, Izv. Geol. Com. [News of the Geological Committee] 45 (9), 991–999 (1926) (in Russian).
  13. Sintsov, I.F., “Description of some types of Mesozoic fossils from Simbirsk and Saratov provin­ces”, Notes of the Novorossiysk Society of Naturalists 7 (1), 1–12 (1880) (in Russian).
  14. Guzhikov, A.Yu., Baraboshkin, E.Yu., Birbina, A.V., “New paleomagnetic data for the Hauterivian Aptian deposits of the Middle Volga region: A possibility of global correlation and dating of time shifting of stratigraphic boundaries”, Russ. J. Earth Sci. 5 (6), 401–430 (2003).
  15. Hamama, H.H., “Barremian and Aptian Mollusca of Gabal Mistan and Gabal Um Mitmani, Al-Maghara Area, Northern Sinai, Egypt”, J. of American Science, 6 (12), 1702–1714 (2010).
  16. Moore, R.C. (ed.), “Treatise on invertebrate paleontology, part N, Mollusca 6, Bivalvia”, Geol. Soc. of America, Inc and the University of Kansas., p. 491–952 (1960).
  17. Zakharov, Yu.D., Kuznetsov, A.B., Seltser, V.B., Ivanov, A.V., Gavrilova, A.A., Chebotareva, V.A., Smyshlyaeva, O.P., Kirienko, A.P., “The problem of isolation and freshening of the Jurassic–Early Cretaceous Middle Russian Sea: A new 87Sr/86Sr, δ18O and δ13C record from the Saratov Volga region”, Palaeo­geography, Palaeoclimatology, Palaeoecology 635 (2024) , https://doi.org/10.1016/j.palaeo.2023.111934.

References

  1. Baraboshkin, Ye.Yu., Mikhailova, I.A., “New stratigraphic scheme of the Lower Aptian of the Middle Volga region”, Stratigrafia. Geologicheskaya korellyatsiya 10 (6), 82–105 (2002) (in Russian).
  2. Glazunova, A.Ye., Paleontological substantiation of the stratigraphic division of the Cretaceous deposits of the Volga region. Lower Cretaceous (Moscow: Nedra, 1973) (in Russian).
  3. Golovinova, M.A., Guzhov, A.V., “Early Cretaceous gastropods of the Middle and Lower Volga region from the collection of P.A. Gerasimova”, Paleontologicheskiy J. 5, 31–36 (2009) (in Russian).
  4. Grishanov, A.V., “Paleomagnetic section of Cretaceous deposits of the Saratov Right Bank”, Voprosy geologii Yuzhnogo Urala i Povolzhia. Stratigraficheskiye i litologicheskiye issledovaniya (Saratov: Sarat. Univers., 1984) (in Russian).
  5. Ivanov, A.V., “Problematic formations from sandy Aptian deposits of the Saratov Volga region”, Cretaceous system of Russia and neighboring countries: problems of stratigraphy and paleogeography. Materials of the third all-Russian meeting (Saratov: Publishing house SО EAGO, 2006) (in Russian).
  6. Ivanov, A.V., Yashkov, I.A., Romanova, Ye.G., Museum of Natural History of Gagarin University. Quick guide (Saratov: Kuznitsa reklamy, 2019) (in Russian).
  7. Ivanov, A.V., Yashkov, I.A., Smurov, A.V., Snakin, V.V., Kolotilova, N.N., Kozachek, A.V., Maksimova, Ye.Ye., “Mobile exhibitions in a scientific and educational expedition as a driver for the development of a youth museum: the experience of the “Flotilla of Floating Universities”, Zhizn Zemly [Life of the Earth] 45 (4), 573–583. DOI 10.29003/m28.0514-7468 (in Russian).
  8. Ivanova, A.N., “Bivalves, gastropods and belemnites of the Jurassic and Cretaceous deposits of the Saratov Volga region”, Stratigraphy and fauna of Jurassic and Cretaceous deposits of the Saratov Volga region (Leningrad: Izdatel’stvo neftyanoy literatury, 1959) (in Russian).
  9. Kokovkin, A.A., Ivanov, A.V., Tyuleneva, V.M., Yashkov, I.A., “Tectonics, seismotectonics and hydrothermal metasomatism in the newest structure of the Volga (Saratov-Kamyshin) Right Bank: new data”, Otechestvennaya geologiya 6, 51–66 (2018) (in Russian).
  10. Mordvilko, T.A., Early Cretaceous thecodont bivalves of the South of the USSR (arcticids and glossites) (Moscow: Nauka, 1979) (in Russian).
  11. Panichev, A.M., Ivanov, A.V., Chekryzhov, I.Yu., Yashkov, I.A., Ivanov, V.V., “Geochemical features of siliceous and siliceous carbonate metasomatitis in chalk and paleogene deposits of the Lower Volga”, Zhizn Zemly [Life of the Earth] 43 (1), 4–19 (2021). DOI: 10.29003/m1990.0514-7468.2020_43_1/4-19 (in Russian).
  12. Pchelintsev, V.F., “Gastropods of the Albian Stage of Sokolovaya Gora near Saratov”, Izv. Geol. Com. [News of the Geological Committee] 45 (9), 991–999 (1926) (in Russian).
  13. Sintsov, I.F., “Description of some types of Mesozoic fossils from Simbirsk and Saratov provin­ces”, Notes of the Novorossiysk Society of Naturalists 7 (1), 1–12 (1880) (in Russian).
  14. Guzhikov, A.Yu., Baraboshkin, E.Yu., Birbina, A.V., “New paleomagnetic data for the Hauterivian Aptian deposits of the Middle Volga region: A possibility of global correlation and dating of time shifting of stratigraphic boundaries”, Russ. J. Earth Sci. 5 (6), 401–430 (2003).
  15. Hamama, H.H., “Barremian and Aptian Mollusca of Gabal Mistan and Gabal Um Mitmani, Al-Maghara Area, Northern Sinai, Egypt”, J. of American Science, 6 (12), 1702–1714 (2010).
  16. Moore, R.C. (ed.), “Treatise on invertebrate paleontology, part N, Mollusca 6, Bivalvia”, Geol. Soc. of America, Inc and the University of Kansas., p. 491–952 (1960).
  17. Zakharov, Yu.D., Kuznetsov, A.B., Seltser, V.B., Ivanov, A.V., Gavrilova, A.A., Chebotareva, V.A., Smyshlyaeva, O.P., Kirienko, A.P., “The problem of isolation and freshening of the Jurassic–Early Cretaceous Middle Russian Sea: A new 87Sr/86Sr, δ18O and δ13C record from the Saratov Volga region”, Palaeo­geography, Palaeoclimatology, Palaeoecology 635 (2024) , https://doi.org/10.1016/j.palaeo.2023.111934.