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Ilim River basin

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Journal Article
Published: 01 September 2011
Russ. Geol. Geophys. (2011) 52 (9): 1007–1015.
... encompasses the most active seismic zones of the orogen, which generated the strongest (M > 8) earthquakes. Since there are scarcely any written accounts, the only way to trace back strong earthquakes is the paleoseismologic method. Since 1984 we have been studying the northwestern Issyk Kul’ basin, where...
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Journal Article
Published: 01 April 2015
Russ. Geol. Geophys. (2015) 56 (4): 611–630.
... occurrence of facies was reliably established in the Tarevo Formation rocks in the Ilim River basin. The most complete section was stripped by BH-N-3 ( Fig. 1 ); it is composed of dirty greenish-gray siltstones with thin intercalates of fine-grained silty sandstones. A typical feature of these rocks...
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Journal Article
Published: 01 March 2021
Russ. Geol. Geophys. (2021) 62 (03): 263–277.
..., Ichketosma, and Tosma uplift . Other uplifts occur between the Tyup and Djergalan rivers, main tributaries to Lake Issyk-Kul, which flow westward tens of kilometers parallel to one another in the eastern part of the basin. A ~70 km long W–E watershed uplift encompasses the Sukhoi Khrebet Range (highest peak...
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Journal Article
Published: 01 September 2011
Journal of Micropalaeontology (2011) 30 (2): 97–106.
... stratigraphic district, lying in the drainage basins of the middle Angara River and the Ilim River ( Fig. 1 : ILM), yielded vertebrates from the only Llandoverian unit, the Rassokha Formation (Rhudanian–Telychian), consisting of variegated siltstone with sandstone lenses ( Tesakov et al ., 2003 ). The Bratsk...
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Journal Article
Published: 01 July 2016
Russ. Geol. Geophys. (2016) 57 (7): 1090–1098.
... be expected in the area. A 2.3 km long and up to 4–6 m high W–E trending fault scarp displaces Late Pleistocene–Holocene alluvial fans in the northern side of the western basin part ( Figs. 4 , 5 ), and another scarp, 350 m long, exists downslope. The fault scarps are crosscut by a dry river valley...
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Journal Article
Published: 01 July 2013
Russ. Geol. Geophys. (2013) 54 (7): 707–723.
... (right tributary of the Angara River), borehole K-8a in the Igirma River basin (right tributary of the Ilim River), and outcrops 1747 in the headwaters of the Tuba River (right tributary of the Ilim River) and 1 near the Kuta River, 1.5–2.0 km downstream of Maksimovo Village ( Fig. 2 ). The stratotypes...
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Journal Article
Published: 01 April 2024
Russ. Geol. Geophys. (2024) 65 (4): 505–518.
... of about 2.5 thous. km were acquired. In addition, two regional normal profiles were run through the syneclise: the Karabula village–Eastern Sayan and Boguchany–Manzya high–Angara River (2005–2010). A total of 27 stratigraphic and exploratory wells were drilled in Sayan–Yenisei potential petroleum area...
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Journal Article
Published: 01 February 2016
Russ. Geol. Geophys. (2016) 57 (2): 337–343.
... deposits , in: Detailed Seismic Division of the Issyk Kul basin [in Russian] . Ilim , Bishkek , pp. 11 – 15 . Havenith , H.-B. , Strom , A. , Jongmans , D. , Abdrakhmatov , K. , Delvaux , D. , Tréfois , P. , 2003 . Seismic triggering...
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Journal Article
Published: 01 January 1999
Russ. Geol. Geophys. (1999) 40 (1): 1–16.
... of the territory under consideration suggests wide development of the ascending flow of artesian water with a water head often exceeding the water level in the Angara, Belaya, Osa, Unga, Oka, Ilim, and other rivers and forming domal hydrogeodynamic [ 6 ] and hydrogeochemical [ 7 ] structures. The formation...
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Journal Article
Published: 01 October 2002
Russ. Geol. Geophys. (2002) 43 (10): 893–915.
... at the Ordovician/Silurian boundary was broken by a subaerial gap in the northern and central parts, followed by rapid flooding to ≥120 m (zone 1) in 1–2 m. y. [ 30 , 32 ]. These conditions occurred, for instance, in the catchment of the Moiero River ( Fig. 4 ). The basin periphery (Ilim and Baltura regions...
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Journal Article
Published: 01 April 2018
Russ. Geol. Geophys. (2018) 59 (4): 335–350.
... against correlated lithological sections of Cenozoic sediments at different sites ( Fig. 3 ). The pre-Quaternary Cenozoic section in the central part of the basin (most complete near the Bizhe River) was divided into 10 units revealed during mapping and correlated with the respective units from other...
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Journal Article
Published: 07 February 2008
Russ. Geol. Geophys. (2008) 49 (2): 98–112.
... — Northern flank of the Tien Shan: a — Chonkurchak, b — Dzhalamysh sai (gully), c — Aksu River; d — southern edge of the Kochkor basin along the Dzhoanaryk River; e — southern edge of the Toguz-Torou basin ( Shul’ts, 1948 ); f — southern edge of the Atbashi basin along the Sarybulak Brook...
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Journal Article
Published: 01 March 2003
Russ. Geol. Geophys. (2003) 44 (3): 237–249.
... in the basins of the Mura and Kova Rivers, parallel to the beds of similar rocks of the Tushama Formation. The Mura (8) and Kova (9) haloes include the sites of KIM findings in both the Middle Paleozoic deposits and the Quaternary DIM dispersion flows radiated from them. The KIM are dominated by pyrope. Besides...
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Journal Article
Published: 01 April 2012
Russ. Geol. Geophys. (2012) 53 (4): 367–375.
... and flow of crustal material at different levels of the lithosphere beneath the mountain belt. Two broad morphologic and genetic types of mountain basins (intramontane and intermontane/foreland) are proposed as indicators of specific geodynamic factors controlling the topographic relief of the orogenic...
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Journal Article
Published: 01 October 2015
Russ. Geol. Geophys. (2015) 56 (10): 1475–1483.
... and intrusions; 8 , Silurian and Ordovician intrusions; 9 , Cambrian and Proterozoic rocks; 10 , faults; 11 , Terskey fault. Fig. 4. Map of Quaternary deposits in the Chon-Kyzylsuu River basin. 1 , Early Holocene alluvium; 2 , Upper Pleistocene–Holocene alluvium; 3 , middle Upper Pleistocene...
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Journal Article
Published: 01 November 2010
Russ. Geol. Geophys. (2010) 51 (11): 1204–1218.
... the flexural transition from the Sayan–Yenisei basin to the Angara–Lena step. Here, in the Angara–Ilim area, Riphean–Vendian deposits pinch out, in which oil shows were found. The predominantly gas-bearing Bratsk area is located in the central IB and occupies the eastern side of the Sayan–Yenisei basin...
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Journal Article
Journal: GSA Bulletin
Published: 01 December 2001
GSA Bulletin (2001) 113 (12): 1544–1559.
... along the Issyk-Ata fault, located ∼10 km north of the basin-margin structures ( Fig. 2 ). The thickest and most complete Tertiary stratigraphic section exposed in the Chu basin is along the west side of the Noruz River ( Fig. 2 ). Unlike the simple homoclinally south-dipping strata along...
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Journal Article
Published: 07 February 2008
Russ. Geol. Geophys. (2008) 49 (2): 124–131.
... consider the main factors that caused damming of the main rivers and the formation of a paleolake. Having analyzed the relief of the Angara upstream valley, we concluded that the only possible damming site is the area of the Badarma slide in the mouth of the Ilim River (left tributary of the Angara...
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Journal Article
Published: 01 November 2023
Russ. Geol. Geophys. (2023) 64 (11): 1283–1290.
... ( 1961 ) reported a stratotype for the Mangazeya stage on the right bank of the Podkamennaya Tunguska River 1.5 km below the Listvyazhnaya mouth ( Fig. 1 , inset), and its place in this section is shown in Fig. 2 . ✉ Corresponding author. E-mail address: [email protected] 28 04...
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Journal Article
Published: 01 September 2006
Russ. Geol. Geophys. (2006) 47 (9): 1024–1035.
... address deformation in lacustrine deposits of the Kok-Moinok basin, a bay of Lake Issyk-Kul’ and its implications for past seismicity. The study area is located in the western part of the Issyk-Kul’ basin where the Chu River turns westward and fine lacustrine sediments alternating with coarse...
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