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Oselok Group

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Series: Geological Society, London, Memoirs
Published: 01 January 2011
DOI: 10.1144/M36.28
EISBN: 9781862394117
...Abstract Abstract The glaciogenic deposits of the Ulyakha Member (Mb.) referred to as Ulyakha diamictite (tillite), and the associated Late Cryogenian (Early Vendian) glaciofluvial deposits, are the lower strata of the Marnya Formation (Fm.) of the Oselok Group (Gr.) in the southwestern...
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Stratigraphic column of the deposits of the <b>Oselok</b> <b>Group</b> in the Biryusa For...
Published: 01 October 2013
Fig. 11. Stratigraphic column of the deposits of the Oselok Group in the Biryusa Fore-Sayan region. 1 , Dolomites; 2 , sandstones; 3 , siltstones; 4 , mudstones; 5 , conglomerates; 6 , brecciform carbonate rocks; 7 , bedding with erosion. Formations: kr, Karagas, os, Oselok; ut, Ust-Tagul
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Classification of terrigenous deposits of the <b>Oselok</b> <b>Group</b> according to  He...
Published: 01 October 2013
Fig. 12. Classification of terrigenous deposits of the Oselok Group according to Herron’s (1988) chart.
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Clastic provenances for terrigenous rocks of the <b>Oselok</b> <b>Group</b> according to ...
Published: 01 October 2013
Fig. 13. Clastic provenances for terrigenous rocks of the Oselok Group according to Bhatia’s (1983) chart. Provenance rock designations follow Fig. 3 .
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REE pattern in terrigenous deposits of the <b>Oselok</b> <b>Group</b> and PAAS.
Published: 01 October 2013
Fig. 14. REE pattern in terrigenous deposits of the Oselok Group and PAAS.
Journal Article
Published: 01 November 2015
Russ. Geol. Geophys. (2015) 56 (11): 1522–1530.
... looks undeformed. The Shishina Member has no genetic relation with the underlying Kirgitei Formation but rather correlates sedimentologically with the Ulyakha Member tillites at the base of the Vendian Marnya Formation (Oselok Group) in the Sayan foothills. The Shishina Member stones may derive from...
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Journal Article
Published: 01 October 2013
Russ. Geol. Geophys. (2013) 54 (10): 1177–1194.
...Fig. 11. Stratigraphic column of the deposits of the Oselok Group in the Biryusa Fore-Sayan region. 1 , Dolomites; 2 , sandstones; 3 , siltstones; 4 , mudstones; 5 , conglomerates; 6 , brecciform carbonate rocks; 7 , bedding with erosion. Formations: kr, Karagas, os, Oselok; ut, Ust-Tagul...
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Provenance compositions for terrigenous deposits of the Baikal and <b>Oselok</b> G...
Published: 01 October 2013
Fig. 16. Provenance compositions for terrigenous deposits of the Baikal and Oselok Groups on the base of Taylor and McLennan’s chart. 1, Goloustnaya Formation of the Baikal Group; 2 , Uluntui Formation of the Baikal Group; 3 , Oselok Group. Composition fields: G, granites; S, sediments; B
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Reconstruction of paleogeodynamic conditions of the sedimentation of terrig...
Published: 01 October 2013
Fig. 5. Reconstruction of paleogeodynamic conditions of the sedimentation of terrigenous deposits of the Baikal and Oselok Groups. IK, Intracontinental settings; PM, passive continental margin; ACM, active continental margin, A1, settings of a young island arc; A2, settings of a mature island arc
Journal Article
Published: 01 January 2007
Russ. Geol. Geophys. (2007) 48 (1): 46–60.
... in the eastern part of the territory. The basal strata of the Baikal and Oselok Groups and their equivalents presumably deposited at about 730 Ma, and their signature of glacial events correlates with the global Sturtian Glacial. The deposition of the Zhuya unit between 680 and 630 Ma was associated...
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Age ranges of the formation of zircons from terrigenous deposits of the Ose...
Published: 01 October 2013
Fig. 15. Age ranges of the formation of zircons from terrigenous deposits of the Oselok Group. Concordance values for 62 zircons ( Table 6 ). Solid curve: frequency distribution of fragmental zircon ages (Isoplot/Ex v.3.41 software).
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Upper Precambrian sedimentary complexes in the southern Siberian Craton.  1...
Published: 01 October 2013
Fig. 1. Upper Precambrian sedimentary complexes in the southern Siberian Craton. 1 , Upper Precambrian sedimentary complexes; 2 , Siberian Craton; 3 , sampling sites: (1) Oselok Group, Biryusa Fore-Sayan region; (2–4) Baikal Group, Southern Baikal region: (2) Bolshoe Goloustnoe Village, (3
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The study area and sample locations. Geological sketch map:  1–4 , rock com...
Published: 01 August 2010
Fig. 1. The study area and sample locations. Geological sketch map: 1–4 , rock complexes of different age: 1 , Paleoproterozoic basement rocks, 2 , Karagas Supergroup, 3 , Oselok Group, 4 , Paleozoic rocks; 5 , sample location areas: a , Biryusa, b , Uda, circles show the location
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Neoproterozoic evolution of carbonate C.  A  — After ( Khabarov and Ponomar...
Published: 01 January 2007
— Ushakovka) and regional stratigraphic units (dl — Dalnyaya Taiga; jd — Yudoma; zn v — Zhuya). B , C — correlation of Oselok Group according to our data (b) and ( Sovetov and Komlev, 2005 ) (c). Nested circles mark morphological assemblages of Ediacaran ichnofauna, double triangles mark
Journal Article
Published: 01 March 2014
Russ. Geol. Geophys. (2014) 55 (3): 361–368.
... by the Vendian Lebyazh’ya Formation with high erosion and a large gap. The Oselok Group of the Sayan region is coeval with the Chapa Group (Resolutions, 1983 ). The Marnya Formation, which opens the group, also overlies different formations of the Karagas Group. The units missing from the section...
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Journal Article
Published: 01 October 2020
Russ. Geol. Geophys. (2020) 61 (10): 1121–1135.
..., is of the same age as the lower part of the Oselok Formation from the Sayan Region (Marnya and Uda formations) and the lower part of the Chapa Group at the north of the Yenisei Ridge (Podyom Formation) ( Vernikovsky et al., 2009 ; Sovetov, 2018 ). However, the C-isotopic characteristics of these deposits...
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Journal Article
Published: 01 January 2007
Russ. Geol. Geophys. (2007) 48 (1): 32–45.
... of the Karagas and Oselok Groups). Prominent Main Sayan Fault zone separates Early Precambrian complexes of the Siberian craton from Paleozoic structures of the Central Asian Fold Belt. The South Yenisei segment comprises two large terranes (see Fig. 2 ). The eastern part of the segment is composed...
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Generalized geology of northwestern East Sayan.  1  — Phanerozoic sedimenta...
Published: 01 January 2007
Fig. 1. Generalized geology of northwestern East Sayan. 1 — Phanerozoic sedimentary cover of Siberian Platform; 2 — Paleozoic complexes of Central Asian fold belt; 3–12 — Precambrian stratified complexes: 3–6 — Neoproterozoic sedimentary (Oselok, Karagas Groups) ( 3 ), metavolcanic
Journal Article
Published: 01 October 2013
Russ. Geol. Geophys. (2013) 54 (10): 1135–1149.
... within the craton and in the surrounding orogens, using isotope age constraints on deposition cycles. The contents of major, trace, and rare-earth elements in sediments of the Late Precambrian Baikal and Oselok Groups of the Siberian craton, as well as the Sm–Nd and Rb–Sr systematics in terrigenous...
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Journal Article
Journal: Geology
Published: 01 July 2013
Geology (2013) 41 (7): 787–790.
... Cryogenian (Vendian) glaciogenic deposits in the Marnya Formation, Oselok Group, in the foothills of the East Sayan Range, southwestern Siberian Craton , in Arnaud E. ., eds., The geological record of Neoproterozoic glaciations: Geological Society of London Memoir 36 , p. 317 – 329 , doi...
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