Engineering-geological features of granitoid masses in Northeastern Transbaikalia
Зеркаль Олег Владимировичведущий научный сотрудник кафедры Инженерной и экологической геологии, геологический факультет МГУ им. М.В. Ломоносоваigzov@mail.ru
Самарин Евгений Николаевичпрофессор кафедры Инженерной и экологической геологии геологического факультета МГУ им. М.В. Ломоносова, д.г.-м.н., главный редактор журнала «ГеоИнфо»samarinen@mail.ru 
Барыкина Ольга Сергеевнастарший научный сотрудник кафедры Инженерной и экологической геологии, геологический факультет МГУ им. М.В. Ломоносоваbarykinaos@my.msu.ruAbstract: North-Eastern Transbaikalia is a vast mid-mountain region situated in the southern part of Siberia to the north and east of Lake Baikal. This region is located at the junction of two large lithospheric structures (the Baikal rift system and the Siberian craton) and is characterized by high tectonic activity and seismicity (with magnitudes up to 8.0) and by contrasting relief. The climate of the region is sharply continental with severe long winters and moderately warm summers. The location of mountain ranges contributes to the penetration of cold arctic air masses. Regarding geology, the territory under consideration is located within the Angara-Vitim granitoid arealpluton. The severity climate, heigh and dissected relief, variegated composition and fracturing of soils and rocks, vertical and horizontal mobility of blocks of the Earth crust in the region have caused intensive development of processes of old and modern weathering (the last has been both areal and linear along faults and fracture zones). Intensive weathering as a characteristic feature of the region leads to the fact that the granitoids masses decompose into gruss and sand at once, without giving intermediate products of destruction such as blocks and crushed stone. This article presents the results of studying granitoids masses in the NorthEastern Transbaikalia.
Keywords: granitoids; North-Eastern Transbaikalia; weathering; faults
DOI: https://doi.org/10.58339/2949-0677-2025-7-1-48-53
UDC: 551.24
For citation: Barykina O.S., Zerkal' O.V., Samarin E.N. Inzhenerno-geologicheskie osobennosti massivov granitoidov Severo-Vostochnogo Zabaikal'ya [Engineering-geological features of granitoid masses in Northeastern Transbaikalia] // GeoInfo. 2025. T. 7. № 1. S. 48–53. DOI:10.58339/29490677-2025-7-1-48-53 (in Rus.)
Funding: No information
REFERENCES:
1. Solonenko V.P. Seismogeologicheskie usloviya zony stroitel'stva BAM [Seismogeological conditions of the BAM construction zone]. Irkutsk, 1981 (in Rus.).
2.Prirodnye usloviya zony osvoeniya BAM [Natural conditions of the BAM development zone]. M.: Izd-vo MGU, 1981 (in Rus.).
3.Geologiya zony BAM. Tom 1. Geologicheskoe stroenie [Geology of the BAM zone. Volume 1. Geological structure]. L.: Nedra, 1988 (in Rus.).
4.Geologiya zony BAM. Tom 2. Gidrogeologiya i inzhenernaya geologiya [Geology of the BAM zone. Volume 2. Hydrogeology and engineering geology]. L.: Nedra, 1988 (in Rus.).
5.Mitrofanova N.N., Boldyrev V.I., Korobeinikov N.K., Mitrofanov G.L. i dr. Gosudarstvennaya geologicheskaya karta Rossiiskoi Federatsii. Masshtab 1:1 000 000 (tret'e pokolenie). Seriya Aldano-Zabaikal'skaya. List O-49-Kirensk. Ob»yasnitel'naya zapiska [State Geological Map of the Russian Federation. Scale 1:1,000,000 (third generation). Aldan-Transbaikal Series. Sheet O-49-Kirensk. Explanatory note. SPb.: VSEGEI Cartography Factory, 2012 (in Rus.).
6.Khlystov P.A., Khoroshikh V.V. i dr. Geologicheskoe stroenie, gidrogeologicheskie usloviya i inzhenerno-geologicheskie usloviya raiona Severo-Muiskogo tonnelya. Otchet Itykitskoi partii o rezul'tatakh GSR-50, GG i IGS-50, GSR-10 za 1985–1988 gg. [Geological structure, hydrogeological conditions and engineering-geological conditions of the Severo-Muya tunnel area: report of the Itykit party on the results of GSR-50, GG and IGS-50, GSR-10 for 1985-1988]. Severobaikal'skaya GREH, 1988 (in Rus.).
7.Geologiya i seismichnost' zony BAM (ot Baikala do Tyndy). Glubinnoe stroenie [Geology and seismicity of the BAM zone (from Baikal to Tynda). Deep structure]. Novosibirsk: Nauka (Sib. otdelenie), 1984 (in Rus.).
8.Lunina O.V. Tsifrovaya karta razlomov dlya pliotseN-chetvertichnogo ehtapa razvitiya zemnoi kory yuga Vostochnoi Sibiri i sopredel'noi territorii Severnoi Mongolii [Digital map of faults for the Pliocene-Quaternary stage of the Earth crust development in the south of Eastern Siberia and the adjacent territory of Northern Mongolia] // Geodinamika i tektonofizika. 2016. T. 7. № 3. S. 407–434 (in Rus.).
9.Barykina O.S., Zerkal' O.V., Samarin E.N., Penzev A.P., Novikov P.N. Massivy granitoidov severo-vostochnogo Zabaikal'ya i protsessy v nikh protekayushchie. Sergeevskie chteniya. Massivy gruntov kak zhizneobespechivayushchii resurs obshchestva. Vypusk 26. Materialy godichnoi sessii Nauchnogo soveta RAN po problemam geoehkologii, inzhenernoi geologii i gidrogeologii, 27–28 marta 2025 g. [Granitoid masses of northeastern Transbaikalia and processes in them. Sergeev Readings. Soil masses as a life-supporting resource of the society. Issue 26. Proceedings of the Annual Session of the Scientific Council of the Russian Academy of Sciences on Problems of Geoecology, Engineering Geology and Hydrogeology, March 27–28, 2025]. M.: Izd-vo «Geoinfo». 2025. S. 133–136 (in Rus.).
10.Inzhenernaya geologiya SSSR (v 8 tomakh). Tom 3. Vostochnaya Sibir' [Engineering Geology of the USSR (in 8 volumes). Vol. 3. Eastern Siberia]. M.: Izd-vo Moskovskogo universiteta, 1977. 657 s. (in Rus.).
Article in RSCI: https://elibrary.ru/item.asp?id=82518758
