The importance of geological-geomorphological factors in the development of abrasion processes on the coasts of the Bratsk Reservoir, in the SE part of Russia

• Autorzy: Ovchinnikov G. I. , Maksimishina Y. S.
• Języki publikacji: EN

Abstrakty

EN

The construction of the Bratsk Reservoir, which is on the Leno-Angarskoje Plateau, favoured the active development of many exogenous geological processes, among which the abrasion of coasts is the most important, both in intensity and scale. Over the period of operation of the reservoir (1967-1998) the length of abraded coasts was 2160 km, or 36% of the total length of the coastal line. The maximum width of abrasion of the coast varies from 200 m to 750 m in unconsolidated sediments and is up to 90 m in rocks. The total area of abraded territory is about 5000 h. Nearly 131 000 000 m3 of the ground entered the reservoir basin due to abrasion. Geological-geomorphological factors are particularly important controls of the abrasion process.

Słowa kluczowe

EN

abrasion process; abrasion of coasts; Bratsk Reservoir

• Wydawca: Stowarzyszenie Geomorfologów Polskich
• Czasopismo: Landform Analysis
• Rocznik: 2002
• Tom: Vol. 3
• Strony: 5--12
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Ovchinnikov G. I.

• Institute of the Earth's Crust SB RAS, Lermontov St., 128, Irkutsk, 664033, Russia

autor

Maksimishina Y. S.

• Institute of the Earth's Crust SB RAS, Lermontov St., 128, Irkutsk, 664033, Russi

Bibliografia

• Bratsk Reservoir. Hydrometeorological regime of lakes and reservoirs of the USSR. 1978. Ed. F. I. Belykh & V. A. Znamensky. Gidrometeoizdat, Leningrad, 166 pp. (in Russian).
• Bratsk Reservoir. An engineering geology of the territory. 1963, Izd. Akad. Nauk SSSR, Moscow, 275 pp. (in Russian). 
• Logatchev, N. A., Lomonosova, T. K. & Klimaniva, V. M., 1964. Cenozoic sediments of the Irkut- sky amphitheater. Nauka, Moscow, 88 pp. (in Rus-sian).
• Ovchinnikov, G. I., 1970. Formation of coasts of the Bratsk Reservoir at a low level of water. In: Transactions of the Trans-Baikal Geographical Society of the USSR. Chita, 51,46-52. (in Russian).
• Ovchinnikov, G. I., 1997. Specific features of formation of coasts of the Angarsky reservoirs. In: An official report of the environmental conditions of the Irkutsk region in 1996. Irkutsk: 96-99. (in Russian).
• Ovchinnikov, G. I. & Karnaukhova, G. A., 1985. Coastal drifts and bottom sediments of the Bratsk reservoir. Nauka, Novosibirsk: 69 pp. (in Russian).
• Palshin, G. B., Zolotarev, A. G., Demyanovich, N. I. & Pulyaevsky, G. M., 1963. A schematic geomorphological map of the area of the Bratsk Reservo-ir. In: Bratsk reservoir. An Engineering geology of the territory. Izd. Akad. Nauk SSSR, Moscow: 48-49. (in Russian).
• Pulyaevsky, G. M., Leshikov, F. N., Ovchinnikov, G. I, & Karnaukhova, G. A., 1974. On drifting in the Bratsk Reservoir. In : Transactions of coordinating workshop on hydraulic engineering. Leningrad: 96, 142-147. (in Russsian).
• Pulyaevsky, G. M., Ovchinnikov, G. I. & Nikiforova, G. P., 1976. Wave energy characteristic of the coastal zone of the Angarsky reservoir. In: Trans-actions of coordinating workshop on hydraulic engineering. Leningrad: 107, 114—121. (in Russian).
• Pulyaevsky, G. M., Pinegin, A. V., Ovchinnikov, G. I. & Nekrasov, V. L., 1971. Abrasion of coasts of the Angarsky reservoirs. In: Proceedings of the East-Siberian Geographical Society of the USSR. Irkutsk: 68, 19-26. (in Russian).