A. Al Hamud1,2, S.V. Rasskazov1,3I.S. Chuvashova1,3, T.A. Yasnygina3, A. Hassan1,3,4
1Irkutsk State University, Irkutsk, Russia
2Alfurat University, Der Al-Zor, Syria
3Institute of the Earth's Crust SB RAS, Irkutsk, Russia
4Al Bass University, Homs, Syria
Al Hamoud Adnan,
Postgraduate student,
664003 Irkutsk, Lenin str., 3,
Irkutsk State University, Faculty of Geology,
Alfurat University, Der Al-Zor, Syria,
email: hamoudadnan04@gmail.com.
Rasskazov Sergey Vasilyevich,
Doctor of Geological and Mineralogical Sciences, Professor, Head of the Laboratory, Head of the Department,
664033 Irkutsk, Lermontov str., 128,
Institute of the Earth's Crust SB RAS,
664003 Irkutsk, Lenin str., 3,
Irkutsk State University, Faculty of Geology,
email: rassk@crust.irk.ru.
Chuvashova Irina Sergeevna,
Candidate of Geological and Mineralogical Sciences, Senior Researcher, Associate Professor,
664033 Irkutsk, Lermontov str., 128,
Institute of the Earth's Crust SB RAS,
664003 Irkutsk, Lenin str., 3,
Irkutsk State University, Faculty of Geology,
email: chuvashova@crust.irk.ru.
Yasnygina Tatyana Aleksandrovna,
Candidate of Geological and Mineralogical Sciences, Senior Researcher,
664033 Irkutsk, Lermontov Str., 128,
Institute of the Earth's Crust SB RAS,
email: ty@crust.irk.ru.
Hassan Abdulmonem,
postgraduate student, junior researcher,
664003 Irkutsk, Lenin str., 3,
Irkutsk State University, Faculty of Geology,
664033 Irkutsk, Lermontov str., 128,
Institute of the Earth's Crust SB RAS,
Al Bass University, Homs, Syria,
email: abdulmonemhassan86@gmail.com.
Abstract. Geochemical signatures of Oligocene and Miocene sedimentary deposits from the Khoygot Paleovalley of Vitim Plateau changed successively over time that reflected change in sources of terrigenic material in the context of the migratory nature of the development of the river network. Geochemical signatures of Eocene-Miocene sedimentary deposits from the eastern (Mishikha-Klyuevka) and western (Osinovka) paleovalleys of the Tankhoy tectonic step of South Baikal were uniform that indicates long-term intake of sedimentary material from a common source. Composition of sedimentary material from paleovalleys of the Tankhoy step was controlled by a limited catchment. After the early Pliocene structural reorganization, geochemical signatures of sedimentary deposits from the eastern part of the Tankhoy tectonic step became similar to those of the Pliocene-Quaternary alluvium frpm the Proto-Manzurka valley of the opposite (north-western) coast of Lake Baikal. It is assumed that the common source of Pliocene-Quaternary sedimentary material was located in Jurassic (Pra-Manzurka) and Upper Jurassic-Lower Cretaceous (eastern part of the Tankhoy tectonic step) sedimentary rocks, disintegrated and eroded on the uplifts of the Primorsky and Khamar-Daban ranges.
Keywords: Cis-Baikal region, Vitim plateau, sedimentary deposits, cenozoic, lithocheochemistry.
P. 110–121
Al Hamud A., Rasskazov S.V., Chuvashova I.S., Tregub T.F., Volkov M.A., Kulagina N.V., Kolomiets V.L., Budaev R.T. Time variations in the composition of Cenozoic deposits on the Tankhoy tectonic step of South Baikal // Izvestiya ISU. Earth Science Series. 2019. V. 30. P. 108–129.
Al Hamud A., Rasskazov S.V., Chuvashova I.S., Tregub T.F., Rubtsova M.N., Kolomiets V.L., Budaev R.T., Hassan A., Volkov M.A. Overturned Eocene-Lower Pliocene alluvial stratum on the southern shore of Lake Baikal and its neotectonic significance // Geodynamics and Tectonophysics. 2021. Vol. 12, No. 1. P. 139–156.
Zamaraev S.M., Samsonov V.V. Geological structure and oil and gas content in Selenga Basin // Geology and oil and gas content in Eastern Siberia. Moscow: Gostoptehizdat, 1959. P. 435–475.
Logatchev N.A., Lomonosova T.K., Klimanova V.M. Cenozoic deposits of the Irkut amphitheater. Moscow: Nauka. 1964. 195 p.
Logatchev N.A. Sayan-Baikal stanovoi upland // Uplands of Pribaikal and Transbaikal. Moscow: Nauka Publisher, 1974. P. 7–163.
Logatchev N.A. History and geodynamics of the Baikal Rift // Geology and Geophysics. 2003. T. 44. No. 4–5. P. 391–406.
Pavlov S.F., Kashik S.A., Lomonosova T.K., Klimanova V.M. Cenozoic crusts of weathering and sedimentary formations of the Western Baikal region. Novosibirsk: Nauka, 1976. 160 p.
Rasskazov S.V., Chuvashova I.S. Volcanism and transtension in the northeast of the Baikal rift system. Novosibirsk: Academic publishing house «Geo», 2018. 383 p.
Rasskazov S.V., Lyamina N.A., Chernyaeva G.P., Luzina I.V., Rudnev A.F., Rezanov I.N. Stratigraphy of the Cenozoic of the Vitim Plateau: phenomenon of long rifting in the south of East Siberia. Novosibirsk: Academic publishing house «Geo». 2007. 193 p.
Rasskazov S.V., Chuvashova I.S., Yasnygina T.A., Fefelov N.N., Saranina E.V. Potassic and potassic-sodic volcanic series in the Cenozoic of Asia. Novosibirsk: Academic publishing house «Geo». 2012. 351 c.
Skoblo V.M., Lyamina N.A., Luzina I.V., Rudnev A.F. Continental Upper Mesozoic of the Baikal region and Transbaikalia. Novosibirsk: Publisher SB RAS, 2001. 332 p.
Logatchev N.A. History and geodynamics of the Baikal Rift // Geology and Geophysics. 2003. T. 44. No. 5. P. 391–406.
Nesbitt H.W., Young G.M. Early Proterozoic climates and plate motions inferred from major element chemistry of lutites // Nature. 1982. V. 299. P. 715–717.
Al Hamud A. Comparative analysis of geochemical signatures for sources of Cenozoic sedimentary deposits laterally to South Baikal [Electronic resource] / A. Al Hamud, S.V. Rasskazov, I.S. Chuvashova, T.A. Yasnygina, A. Hassan // Geology and Environment.— 2022.— V. 2, No. 1.— P. 110–121. DOI 10.26516/2541-9641.2022.1.110
Access Mode: http://geoenvir.ru/archive/g&e22-2-1/hamud22-1.htm (31.03.2022).