On palaeomagnetic dating of fluvial deposits in the section of Neporotove gravel quarry on the Middle Dniester
Keywords:
Dniester River, Neporotove gravel quarry, river terrace, palaeomagnetic dating, channel alluvium, remanent magnetisation
Abstract
The paper presents the results of palaeomagnetic studies of Quaternary noncemented deposits from the section of Neporotove on the VIIIth terrace of the Dniester River valley with abnormal thickness (more than 20 m) of the channel alluvium near the village of Neporotove, located on the right bank of the Dniester River. Alluvial facies of river terraces’ deposits are valuable palaeogeographic archives but not quite complete. They are affected by denudation and often do not contain fossils. The possible way for their dating is provided by a palaeomagnetic method performed on suitable for sampling underlying and overlying beds. The alluvial sequence consists of four units. Unit I is composed of inclined gravel-pebble layers with the sand filler with a visible thickness of about 8 m. Unit II has bedded over the denudated surface of Unit I; it consists of light-yellow laminated aleurit loam, 5-30 cm thick underlaid by 0.5-1.5 bed of fine sand. We consider Unit II to be lacustrine deposits accumulated in quiet water. Unit III is represented with inclined or sub-horizontally layered gravel-pebble-boulder deposits with up to 10 m of visible thickness. It includes boulders and blocks of sedimentary rocks up to 1.0 in diameter, considered as drop-stones. In the roof of the gravel-pebble Unit III, there is the white carbonate layer, probably, the illuvial horizon of the palaeosol (mr1), which transited up into the brownish-red horizon A (Unit IV). Unit IV – dark-red sandy-gravel horizon, pedosediment, probably partly the reworked material washed into ice wages in the roof of Unit III. As a result of alternating field stepwise demagnetisation of natural remanence of sediments, we determined that loamy Unit II, which separates members of gravel stratum, and sandy Unit IV, which overlays packs of gravel alluvium, bear characteristic remanent magnetisation (RM) with normal geomagnetic polarity. Taking into consideration lithology and two-fold structure of terrace gravel alluvium as well as palaeomagnetic results, we assume the lacustrine deposits of Unit II was formed during Jaramillo palaeomagnetic subchron corresponding to the end of Shyrokyne Stage, and a pedosediment of Unit IV was formed during Martonosha Stage. The upper alluvial suite of a terrace (Unit III) was generally deposited during a cold stage,directly prior to the onset of lacustrine loam sedimentation, while the lower alluvial member (Unit I) dates from the preceding warm stage. Thus, we defined the geological age of the whole channel alluvium strata of the VIIIth Dniester terrace as Shyrokyne-Pryazovya Stage.References
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2. Bakhmutov, V., Glavatskyi, D., 2014. New data for the Matuyama–Brunhes boundary in the Roksolany section, Geologichnyi Zhurnal, vol. 347, no. 2, pp. 73–84.
3. Bakhmutov, V., Glavatskyi, D., 2016. Pleistocene Magnetostratigraphy Problems of the loess-soil deposits of the south of Ukraine, Geofiz. Zh., vol. 38, no. 4, pp. 59–74.
4. Bakhmutov, V.G., Kazanskii, A.Y., Matasova, G.G., Glavatskii D. V., 2017. Rock magnetism and magnetostratigraphy of the loess-sol series of Ukraine (Roksolany, Boyanychi, and Korshev sections) Izv., Phys. Solid Earth 53: 864. https://doi.org/10.1134/S1069351317050020
5. Butler, R.F., 1992. Palaeomagnetism: Magnetic Domains to Geologic Terrains. Blackwell Scientific, Boston, Oxford.
6. Cande, S.C.and Kent, D.V., 1995, ‘Revised calibration of the geomagnetic polarity timescale for the late Cretaceous and Cenozoic’, J.Geophys.Res. vol. 100, no. B4, 6093–6095.
7. Evans, M.E., Heller, F., 2003. Environmental Magnetism. Principles and Applications of Enviromagnetics. In: International Geophysics Series. Elsevier Science, USA.
8. Gerasimenko N.P., 2010. Korelyatsija korotkoperiodychnyh etapiv pleistotsenu za paleolandshaftnymy danymy [Correlation of short-period stages of Pleistocene by palaeolandscape data]. In: Prostorovochasova koreliatsija paleogeografichnyh umov chetvertynnogo periodu na terytoriji Ukrainy [Spatial-temporal correlation of Quaternary
palaeogeographic conditions on the territory of Ukraine] / Ed. Zh.M. Matvijishyna. Kyiv, Naukova Dumka, 104–129 (in Ukrainian).
9. Glavatskii D.V., Kuzina D.M., Gerasimenko N.P., Bakhmutov V.G., 2016. Petromagnetizm I palaeomagnetizm chetvertichnykh lyossovopochvennykh otlozhenij razreza Viazovok (Pridneprovskaya nizmennost) [Petromagnetism and palaeomagnetism of Quaternary loesssoil sediments of Vyazivok section (Dnieper Lowland)]. Geofizicheskiy Zhurnal, [S.l.], v. 38, n. 6, p. 186–193 (in Russian).
10. Gozik P., Lindner L., 2007. Tarasy srodkowego i dolnego Dniestru oraz ich znaczenie w badaniach nad plejstocenem Europy. Systemy dolinne i ich funkcjonowanie. Prace Instytutu Geografii. № 16. S. 27–42.
11. Hofstein I.D., 1979. Neotektonika zapadnoj Volyno-Podolii [Neotectonics of the Western Volyno-Podolia]. Naukova Dumka, Kiev, 155 p. (in Russian).
12. Kodama, K. P., 2012. Palaeomagnetism of Sedimentary Rocks: Process and Interpretation. Oxford: WileyBlackwell.
13. Lindner, L., Bogutsky, A., Gozhik, P., Marks, L., Lanczont, M., Wojtanowicz, J., 2006. Correlation of Pleistocene deposits in the area between the Baltic and Black Sea, Central Europe, Geol. Quart., no. 1, pp. 195–210.
14. Matoshko A.V., Gozhik P.F., Danukalova G., 2004. Key Late Cenozoic fluvial archives of eastern Europe: the Dnister, Dniper, Don and Volga. Proceedings of the Geologists' Association, 115, 141–173.
15. Mial, A.D., 2006. The geology of Fluvial Deposits. Sedimentary Facies, Basin Analysis, and Petroleum Geology. 4th printing. Berlin -Heidelberg - New York: Springer, 582 p.
16. Nawrocki, J., Bakhmutov, V., Bogucki, A., and Dolecki, L., 1999. The palaeo and petromagnetic record in the Polish and Ukrainian loess-palaeosol sequences, Phys. Chem. Earth A, vol. 24, no. 9, pp. 773–777.
17. Nikiforova, K.V., Ivanova, I.K., Konstantinova, N.A., 1971. Tiraspol’ kak opornyj razrez pleistocena Yevropy [Tiraspol as a type locality for the Pleistocene of Europe]. In: Nikiforova K.V. et al. (eds.) Pleistocene of Tiraspol. Shtiintsa, Kishinev, 187 p. (in Russian).
18. Pevzner, M.A., Chepalyga, A.L., 1970. Palaeomagnitnuye issledovaniya pliotsen-chetvertichnykh terras Dnestra [Palaeomagnetic studies of the Pliocene and Pleistocene Dniester terraces]. Doklady Akad. Nauk SSSR, 194 (1), 1142–1144 (in Russian).
19. Polianskyi, Y.I., 1929. Podil’ski etiudy: terasy, lesy i morfologiya Galytskogo Podillya [Podolian Essays: terraces, loesses and morphology of Halytske Podillya]. Zbirnyk matematychnopryrodnycho-likarskoyi sektsii Naukovogo Tovarystva Shevchenka, 16, 311 p.
20. Pospelova, G.A., Gnibidenko, Z.N., 1972. Palaeomagnetic investigations of the Quaternary terraces of the Southern Dniester area. Geofizicheski Sbornic, 47, Siberian Department of the Russian Academy of Science, Novosibirsk (in Russian).
21. Ridush B., Popiuk Y., 2015. Anomalni potuzhnosti ruslovogo aliuviyu v terasovyh vidkladah Seredniogo Podnistrov`ja [Abnormal thickness of channel alluvium on the Middle Dniester]. Scientific Herald of Chernivtsi Univ.: Geography. Chernivtsi National University, Chernivtsi, 762–763, 49–57 (in Ukrainian).
22. Tauxe, L, Banerjee, S.K., Butler, R.F. and van der Voo R., 2018. Essentials of Palaeomagnetism, 5th Web Edition.
23. Tomeniuk, O., 2010. Yurij Polians’kyj – doslidnyk teras Dnistra [Yuriy Polianskyi as a researcher of terraces of Dniester River]. Visnyk Lvivskogo Universytetu, Ser. Geogr., N 38: 340–356 (in Ukrainian).
24. Tretyak A.N., Vigilyanskaya L.I., 1994. Magnitostratigraficheskaya shkala plejstocena Ukrainy [Pleistocene magnetostratigraphic scale of Ukraine]. Geofizicheskiy zhurnal, vol.16, № 2, p. 3–14 (in Russian).
25. Trubikhin, V.M., Chepalyga, A.L., 1986. Palaeomagnitnaya stratigraphiya Pliotsena I Pleistotsena Moldavii [Palaeomagnetic stratigraphy of the Pliocene and Pleistocene in Moldavia]. In: Negodaev-Nikonov, K.N. (Ed.), Faunal Assemblages, Biostratigraphy of the Pliocene and Pleistocene of Moldavia. Stiintsa, Kishinev, pp. 30–31 (in Russian).
26. Veklich, M.F., Dubniak, V.O., 1975. Palaeogeografichni etapy utvorennia teras Seredniogo Dnipra [Palaegeographical stages of the Middle Dnieper terraces fonnation]. In (Marinich, O.M.; ed.) Problemy geographichnoi nauky v UkrSSR [Problems of Geography in rhe Ukrainian SSR}. Naukova Dumka, Kiev, Ukraine, 74–86 (in Ukrainian).
27. Veklich, M.F., Sirenko, N.A., Matviishina, Zh.N., 1984. Palaeogeograficheskie etapy i detal’noe stratigraficheskoe raschlenenie pleistotsena Ukrainy (Palaeogeographic Stages and Detailed Stratigraphic Division of the Pleistocene of Ukraine), Kiev, Nauk. Dumka, 32 p. (in Russian).
28. Veklych, M.F., 1982. Palaeoetapnost i stratotipy pogrebyonnyh formatsyj verkhnego kaynozoya [Palaeostages and stratotypes of soil formations of the Upper Cenozoic]. Naukova Dumka, Kiev, 201 p. (in Russian).
29. Vyrzhykivskyi, R., 1933. Geological map of Ukraine. Sheets ХХVІ-6 і ХХVІІ-6 (Naddnistrianshchyna: Mogyliv - Yampil'). Geologo-rozviduvalnyi Trest, Kyiv, 226 p. (in Ukrainian).
30. Yatsyshyn, A., Bogutskyi, A., 2008. Etapy pleistocenovogo morfogenezu dolyny Dnistra u halytskomu Prydnistrov`ji na osnovi analizu lesovogruntovyh pokryviv teras [Stages of Pleistocene morphogenesis of the Dniester valley in Galychyna Trans-Dniester on the basis of analysis of loess-soil-cover of terraces]. Visnyk Instytutu Arheologii, 3 : 3–7 (in Ukranian).
Published
2019-07-03
How to Cite
Bondar, K., Ridush, B., Baryshnikova, M., & Popiuk, Y. (2019). On palaeomagnetic dating of fluvial deposits in the section of Neporotove gravel quarry on the Middle Dniester. Journal of Geology, Geography and Geoecology, 28(2), 241-249. https://doi.org/https://doi.org/10.15421/111925
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