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![Lithostratigraphic section of the Tushama Formation in BH-1 (see Fig. 1). Designations follow Fig. 2.]()
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![Schematic geologic structure of the Siberian Platform cover in the area of the Ust’-Ilim water reservoir, modified from Permyakov et al. [2012]. 1 – Quaternary deposits; 2 – Pereyaslavka Formation (J1); 3 – Tutonchany Formation (Т1); 4 – Ingambo Formation (P2); 5 – Kata Formation (С2–3); 6 – Tushama Formation (С1); 7 – Badaranovka Formation (O2); 8 – Kezhem Formation (S1); 9 – mafic igneous rocks of the Korshunovo Complex (T1); 10 – locality of sampling from the deposits of the Kata and Tushama formations.]()
![Histograms and relative probability age curves for detrital zircons from the sandstones of the Tushama, Kata, and Baeronovka formations: a – sample 2165, Tushama Formation, n = 92; b – sample 2180, Kata Formation, n = 86; c – sample 1826, Baeronovka Formation, n = 107 [Gladkochub et al., 2020].]()
![PCS-normalized [Condie, 1993] and chondrite-normalized [Boynton, 1984] trace element and REE patterns of the sandstones of: a, b – Baeronovka Formation; c, d – Tushama Formation; e, f – Kata Formation. Designations follow Fig. 5.]()
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![A (Al/Si (at. quant.)) – B (Fe2+ + Fe3+ + Mn + Ca + Mg (at. quant.)) classification diagram [Neelov, 1980] for the studied sandstones of: 1 – Baeronovka Formation, 2 – Tushama Formation, 3 – Kata Formation. Composition fields: I – monomict (quartz) sandstone; IIb – carbonate (ferruginous) sandstone; IIIa-1 – arkosic and subarkosic sandstone; IIIa-2 – polymict sandstone; IIIb – carbonate and ferruginous polymict sandstone; IIIc – carbonate and carbonate–ferruginous sandstone; IIIf – carbonatolite with an impurity of sand and tuff material; IVa – polymict siltstone.]()
![Geologic profile A-B (see Fig. 1). 1 – sandstones, 2 – sandstones with horizontal bedding, 3 – sandstones with occasional pebbles, 4 – Quaternary deposits, 5 – siltstones, 6 – mudstones, 7 – limestones, 8 – pit and its number, 9 – trench and its number, 10 – Tushama Formation, 11 – Upper Lena Formation.]()
![Photomicrographs of thin sections of quartz sandstone (a – nicols ||; b – nicols ×), calcareous silty sandstone (c – nicols ||; d – nicols ×), and ferruginous sandstone (e – nicols ||; f – nicols ×) from the Baeronovka Formation, polymict sandstone from the Tushama Formation (g – nicols ||; h – nicols ×), and polymict sandstone from the Kata Formation (i – nicols ||; j – nicols ×). Qz – quartz; Fsp – feldspar; Pl – plagioclase; 1–7 – rock fragments: 1 – granitoids 2 – siliceous rocks 3 – mudstones 4 – limestones, 5 – siltstone, 6 – mafic effusive rock, 7 – microshale.]()
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![Th/Sc–Zr/Sc [McLennan et al., 1993], Ti/Zr–La/Sc [Bhatia and Crook, 1986], and La/Th–Hf [Floyd and Leveridge, 1987] diagrams for the sandstones of the Baeronovka, Tushama, and Kata formations. Designations follow Fig. 5. Dash-dotted lines show the composition trend of the provenance rocks and the recycling trend; solid lines mark the composition fields of various igneous rocks; and dashed lines show the directions of the increase in the content of ancient sedimentary component and mixing of the compositions of the provenance rocks.]()
![Geologic profile N-M (see Fig. 1). 1 – sandstones; 2 – siltstones; 3 – mudstones; 4 – sand-pebbles (Q); 5 – dark-brown clays with gruss and mudstone detritus (Q); 6 – tuffs; 7 – sandstones with flat mudstone pebbles; 8 – limestones; 9 – dolomites; 10 – marls; 11 – breccia-like dolomites; 12 – breccia-like limestones; 13 – mudstones interbedding with siltstones and thin partings of flat-pebble conglomerates; 14 – flora; 15 – spore-and-pollen assemblages. Stratigraphic boundary: 16 – between deposits bedded with erosion and stratigraphic unconformity, 17 – between conformable deposits. Formations: 18 – Upper Lena, 19 – Litvintsev; 20 – Tushama.]()
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Tushama Formation
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Image
Lithostratigraphic section of the Tushama Formation in BH-1 (see Fig. 1 ).... Available to Purchase
in EARLY CARBONIFEROUS AGE AND LAKE GENESIS OF THE TUSHAMA HORIZON ( Siberian Platform )
> Russian Geology and Geophysics
Published: 01 October 2000
Fig. 3. Lithostratigraphic section of the Tushama Formation in BH-1 (see Fig. 1 ). Designations follow Fig. 2 .
Journal Article
EARLY CARBONIFEROUS AGE AND LAKE GENESIS OF THE TUSHAMA HORIZON ( Siberian Platform ) Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 October 2000
Russ. Geol. Geophys. (2000) 41 (10): 1393–1403.
...Fig. 3. Lithostratigraphic section of the Tushama Formation in BH-1 (see Fig. 1 ). Designations follow Fig. 2 . ...
FIGURES
Image
![Schematic geologic structure of the Siberian Platform cover in the area of the Ust’-Ilim water reservoir, modified from Permyakov et al. [2012]. 1 – Quaternary deposits; 2 – Pereyaslavka Formation (J1); 3 – Tutonchany Formation (Т1); 4 – Ingambo Formation (P2); 5 – Kata Formation (С2–3); 6 – Tushama Formation (С1); 7 – Badaranovka Formation (O2); 8 – Kezhem Formation (S1); 9 – mafic igneous rocks of the Korshunovo Complex (T1); 10 – locality of sampling from the deposits of the Kata and Tushama formations.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/rgg/66/5/10.2113_RGG20244824/1/s_motova_page_4_1.jpeg?Expires=2147483647&Signature=bjDpThb5v4EZzI9Mtu9y8J9waPWtzxhaDf-1QZ3JcG8zzl04cC4H9I~uYI3nwX2J9ycYS7ZzxyWKJBD0hJAptafrg~soBaz9p8hqpdYvlrPURbgfiSeD35jplHcLUjlnbE3eWD1BLwCEqvPDxNHXSTtQ-w4MSO2aH~T5LK~SZ9K3Kd6kyY6L9gmX3OGfFHQIdNTr0jsp7Abvp4WsnH93ReLkkWid~Vc8D9kn8jTmUxbfK0Nwfub8oiEqQfL74hYaUSyi5UgQVcnrmF~Kqy9F5zRcMI~PwBqugEVm2JPyT90MNxT0kVoXd2rY8TxQzd1j0~0EXvAMhaGHoe57Gb1LWg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Schematic geologic structure of the Siberian Platform cover in the area of ... Available to Purchase
in THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM
> Russian Geology and Geophysics
Published: 01 May 2025
Formation (С 2–3 ); 6 – Tushama Formation (С 1 ); 7 – Badaranovka Formation (O 2 ); 8 – Kezhem Formation (S 1 ); 9 – mafic igneous rocks of the Korshunovo Complex (T 1 ); 10 – locality of sampling from the deposits of the Kata and Tushama formations.
Image
![Histograms and relative probability age curves for detrital zircons from the sandstones of the Tushama, Kata, and Baeronovka formations: a – sample 2165, Tushama Formation, n = 92; b – sample 2180, Kata Formation, n = 86; c – sample 1826, Baeronovka Formation, n = 107 [Gladkochub et al., 2020].](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/rgg/66/5/10.2113_RGG20244824/1/s_motova_page_12_1.jpeg?Expires=2147483647&Signature=Fa~71ZwElASxqk0sRXQOGfhqlbtH-P4gmen-~zL2TSckgo2R0DwhySG0mw2~ypaczW6namkqpSUX1taAZ3MDWINMmttH6PomfQTwP6~vXnoa9dShCkqNsd-54suUwMSSN4-5I~h3gc6psfm07MKtmM48nDxlWRZOFWOLA3NSvsrkcHextTBowGgKKEWiXF3Izac43uTOiGqaLSG1mAM1aDBQyoOUZ9GHdtlCuxCGtPjEopXHVGeuULD~UbKWhV9v6sTJBoVkrteNEyeNykX6PTkksJ0UfFJqN9LohVAMlL2iOBWHP3TwvumANrIeDIuKgcKPo~x92EGjvTdoZDC5EQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Histograms and relative probability age curves for detrital zircons from th... Available to Purchase
in THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM
> Russian Geology and Geophysics
Published: 01 May 2025
Fig. 7. Histograms and relative probability age curves for detrital zircons from the sandstones of the Tushama, Kata, and Baeronovka formations: a – sample 2165, Tushama Formation, n = 92; b – sample 2180, Kata Formation, n = 86; c – sample 1826, Baeronovka Formation, n = 107
Image
![PCS-normalized [Condie, 1993] and chondrite-normalized [Boynton, 1984] trace element and REE patterns of the sandstones of: a, b – Baeronovka Formation; c, d – Tushama Formation; e, f – Kata Formation. Designations follow Fig. 5.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/rgg/66/5/10.2113_RGG20244824/1/s_motova_page_11_1.jpeg?Expires=2147483647&Signature=g26Ualdzw3VXt4~E5seDnCdPZeQpC4~45dhd7sopChSJxBjNfVYqqnwZbE9n7QR7k27lqwSgsqGlbfv414hsNJuWk279ItMNhWkWv73ZIEX-L8Tf39ciLg-iaho~d0XYZhAxZOh6no2RqUYrbTVWqFqxybMKGjnLvmg3a1T9ss05lQavHh~D9kxDyjEmv43KcrLQaWMFQEHGOoz44McFPiLYlS-5H39A3WK3cxSOTXLm~FdLfHp6qJ8GQzEn0AdSiWZTjvnOFBLk1XPOMTfhSqWCMiBhpH7kWtkN9jCGDI-mFD24eBUMA3Y57kVd9O4dK89V~hi3jKjy9KYoGW112w__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
PCS-normalized [ Condie, 1993 ] and chondrite-normalized [ Boynton, 1984 ] ... Available to Purchase
in THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM
> Russian Geology and Geophysics
Published: 01 May 2025
Fig. 6. PCS-normalized [ Condie, 1993 ] and chondrite-normalized [ Boynton, 1984 ] trace element and REE patterns of the sandstones of: a , b – Baeronovka Formation; c , d – Tushama Formation; e , f – Kata Formation. Designations follow Fig. 5 .
Journal Article
THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 May 2025
Russ. Geol. Geophys. (2025) 66 (5): 511–529.
... Formation (С 2–3 ); 6 – Tushama Formation (С 1 ); 7 – Badaranovka Formation (O 2 ); 8 – Kezhem Formation (S 1 ); 9 – mafic igneous rocks of the Korshunovo Complex (T 1 ); 10 – locality of sampling from the deposits of the Kata and Tushama formations. ...
FIGURES
Includes: Supplemental Content
Image
![A (Al/Si (at. quant.)) – B (Fe2+ + Fe3+ + Mn + Ca + Mg (at. quant.)) classification diagram [Neelov, 1980] for the studied sandstones of: 1 – Baeronovka Formation, 2 – Tushama Formation, 3 – Kata Formation. Composition fields: I – monomict (quartz) sandstone; IIb – carbonate (ferruginous) sandstone; IIIa-1 – arkosic and subarkosic sandstone; IIIa-2 – polymict sandstone; IIIb – carbonate and ferruginous polymict sandstone; IIIc – carbonate and carbonate–ferruginous sandstone; IIIf – carbonatolite with an impurity of sand and tuff material; IVa – polymict siltstone.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/rgg/66/5/10.2113_RGG20244824/1/s_motova_page_10_1.jpeg?Expires=2147483647&Signature=NZ6p1ncRWRB7QObK2GzUe1eWDRe9pO0UHh5y7oonlL6rAKMXsV1yMyp4BB6sB0bFjtSFJOQtujJjGLPAj7WTHicemjewX4ls5vC6Tvm9Mo5PKknrzxARaGWxspjGJUhwlLUhcmULj~IIbvCFOML3yCypSuvre15xNRChDlfgROAo13jcj1DSoe72~bnTvZIncpsvgfKkqWa~ievGhB~CMsbioOLPlvGtciifgduxjJ0ZwAjiKy72DU1r29~gsU3Mld-1DVBjya8L72d6KrWJn7aZJP0t-bqvNLe4ZeowyQixFGtppZso~Dh0614pWsIUNf1ioPpvdOO82StjjLjvsg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
A (Al/Si (at. quant.)) – B (Fe 2+ + Fe 3+ + Mn + Ca + Mg (at. quant.))... Available to Purchase
in THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM
> Russian Geology and Geophysics
Published: 01 May 2025
Fig. 5. A (Al/Si (at. quant.)) – B (Fe 2+ + Fe 3+ + Mn + Ca + Mg (at. quant.)) classification diagram [ Neelov, 1980 ] for the studied sandstones of: 1 – Baeronovka Formation, 2 – Tushama Formation, 3 – Kata Formation. Composition fields: I – monomict (quartz) sandstone; IIb
Image
Geologic profile A-B (see Fig. 1 ). 1 – sandstones, 2 – sandstones wit... Available to Purchase
in EARLY CARBONIFEROUS AGE AND LAKE GENESIS OF THE TUSHAMA HORIZON ( Siberian Platform )
> Russian Geology and Geophysics
Published: 01 October 2000
Fig. 4. Geologic profile A-B (see Fig. 1 ). 1 – sandstones, 2 – sandstones with horizontal bedding, 3 – sandstones with occasional pebbles, 4 – Quaternary deposits, 5 – siltstones, 6 – mudstones, 7 – limestones, 8 – pit and its number, 9 – trench and its number, 10 – Tushama
Image
Photomicrographs of thin sections of quartz sandstone ( a – nicols ||; b ... Available to Purchase
in THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM
> Russian Geology and Geophysics
Published: 01 May 2025
Fig. 4. Photomicrographs of thin sections of quartz sandstone ( a – nicols ||; b – nicols ×), calcareous silty sandstone ( c – nicols ||; d – nicols ×), and ferruginous sandstone ( e – nicols ||; f – nicols ×) from the Baeronovka Formation, polymict sandstone from the Tushama Formation
Journal Article
Interbasin correlation of the Devonian and Lower Carboniferous Angarida continental deposits Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 May 2009
Russ. Geol. Geophys. (2009) 50 (5): 417–429.
... chart of V.I. Budnikov, the Brus Formation reaches the Bashkirian (Middle Carboniferous), whereas on the chart of O.V. Vaag it does not exceed the Visean bounds. A similar situation holds for the Krasnogor’evka and Tushama Formations. The Carboniferous deposits are difficult for regional correlation...
FIGURES
Journal Article
PROSPECTS FOR DISCOVERY OF MIDDLE PALEOZOIC KIMBERLITES IN THE SOUTH OF THE SIBERIAN PLATFORM ( from mineralogical and paleogeographic evidence ) Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 March 2003
Russ. Geol. Geophys. (2003) 44 (3): 237–249.
.... On the southeastern flank of the Tunguska syneclise , pyrope was discovered in the Early Carboniferous Tushama Formation [ 7 – 14 ]. The DIM that were found are concentrated mainly in a narrow northeastern band of modern outcrops of Early Carboniferous rocks; in the Quaternary alluvium they fringe this band...
FIGURES
Image
![Th/Sc–Zr/Sc [McLennan et al., 1993], Ti/Zr–La/Sc [Bhatia and Crook, 1986], and La/Th–Hf [Floyd and Leveridge, 1987] diagrams for the sandstones of the Baeronovka, Tushama, and Kata formations. Designations follow Fig. 5. Dash-dotted lines show the composition trend of the provenance rocks and the recycling trend; solid lines mark the composition fields of various igneous rocks; and dashed lines show the directions of the increase in the content of ancient sedimentary component and mixing of the compositions of the provenance rocks.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/rgg/66/5/10.2113_RGG20244824/1/s_motova_page_13_1.jpeg?Expires=2147483647&Signature=1GbGwKK9bhDbYvaw9XhmYBNg9gz7NHHnyjL6IqYv6IdKhSfx8z8V7JcSdE9BAqM3GQCwhxBBPjROOr4hPv0CC9ZqGLZ5U1EA619OJmuXLGkVbnRuM1unmhp1imJ48UkJzigRzDazVpy70FhlcSC0fIhha6HBIL135Zb3t0HCzq0f9B5IR~UjcEcRpFcgRNtLRJnm9jt1Qtp2EowsblVDmXE5SwkjR7hlDkJfhoicc5kR6kPHlS6SLhQqyvMtQV9qYGMqyxN6zkwfdob3CSRgusx1gS61mJDF0ucTfseB6y7wlcvFZrfXytl6K5TmbVoB0XnSFeuRD1UoJtiWWY6IQQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Th/Sc–Zr/Sc [ McLennan et al., 1993 ], Ti/Zr–La/Sc [ Bhatia and Crook, 1986... Available to Purchase
in THE COMPOSITION AND CONDITIONS OF FORMATION OF THE CARBONIFEROUS TERRIGENOUS ROCKS OF THE SIBERIAN PLATFORM
> Russian Geology and Geophysics
Published: 01 May 2025
Fig. 8. Th/Sc–Zr/Sc [ McLennan et al., 1993 ], Ti/Zr–La/Sc [ Bhatia and Crook, 1986 ], and La/Th–Hf [ Floyd and Leveridge, 1987 ] diagrams for the sandstones of the Baeronovka, Tushama, and Kata formations. Designations follow Fig. 5 . Dash-dotted lines show the composition trend
Image
Geologic profile N-M (see Fig. 1 ). 1 – sandstones; 2 – siltstones; 3... Available to Purchase
in EARLY CARBONIFEROUS AGE AND LAKE GENESIS OF THE TUSHAMA HORIZON ( Siberian Platform )
> Russian Geology and Geophysics
Published: 01 October 2000
– between conformable deposits. Formations: 18 – Upper Lena, 19 – Litvintsev; 20 – Tushama.
Journal Article
SILURIAN STRATIGRAPHY OF EAST SIBERIA Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 October 1998
Russ. Geol. Geophys. (1998) 39 (10): 1338–1358.
... (Llandoverian), S 1 rh , was established by Predtechensky, Tesakov, et al., [ 32 , p. 72]. It is named after the Nazarovskaya Rassokha Brook, on the sides of which a water-supply trench exposes the stratotype of the formation near the Tushama station. The formation is divided into three subformations; consists...
FIGURES
Journal Article
Biofacies zonation of Ordovician deposits of the southern Siberian Platform Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 April 2015
Russ. Geol. Geophys. (2015) 56 (4): 611–630.
... of biotas in different paleogeographic environments during the formation of Phanerozoic-type marine ecosystems ( Kanygin, 2001 ; Sepkosky, 1982 ). The Ordovician System of the Siberian Platform has been comprehensively studied by stratigraphic, paleontological, sedimentological, paleoecological...
FIGURES
Book Chapter
Russian regional Carboniferous stratigraphy Available to Purchase
Series: Geological Society, London, Special Publications
Publisher: Geological Society of London
Published: 13 April 2022
DOI: 10.1144/SP512-2021-134
EISBN: 9781786205827
... The Tournaisian Stage on the EEP in its western and central regions is incompletely represented owing to a hiatus in the middle of this stage and a long gap in the second half of the Tournaisian and the early Visean, succeeded by the formation of coal-bearing strata. Outcrops are very few. In the Volga–Ural...
