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Naunak Formation

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Image
Ichnofossil distribution over different types of the Callovian–Oxfordian se...
Published: 01 October 2011
Fig. 5. Ichnofossil distribution over different types of the Callovian–Oxfordian section of the West Siberian basin. A , Vasyugan Formation, Upper Pur facies subregion; B , Vasyugan Formation, Ob’–Tara and Ob’–Agan subregions; C , Abalak Formation; D , Naunak Formation; E , Tochino
Journal Article
Published: 01 March 2020
Russ. Geol. Geophys. (2020) 61 (3): 330–340.
... horizons. The Purpei–Vasyugan area is divided into three subareas according to the structure of the Vasyugan Formation including the petroliferous horizon Yu 1 . Transition zones have been recognized between the Vasyugan Formation and the bordering Abalak, Tatar, and Naunak formations along the western...
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Skolithos  ichnofacies.   Fig. 1 , Zapadno-Amputinskaya well, no. 33, depth...
Published: 01 October 2011
Formation, supracoal unit, Skolithos ; Fig. 6 , Vostok-1 well, depth 2291.6 m, Naunak Formation, Skolithos ; Fig. 7, Kiev-Eganskaya well, no. 367, depth 2735.5 m, Naunak Formation, Skolithos (Sk), Ophiomorpha (Oph), rhizolith (rz). The sample is inhomogeneously oil-saturated, and the oil saturation
Image
Geothermal-gradient ( g ) patterns for the lower intervals of two deep well...
Published: 01 July 2016
Formations (K 1 ); 6–7, Bazhenovo (plus Georgievka) and Vasyugan (Naunak) Formations (J3); 8, Tyumen’ Formation (J 1–2 ); 9, pre-Jurassic basement (PZ).
Image
Cruziana–Zoophycos  ichnofacies, escape traces, and deformational bioturbat...
Published: 01 October 2011
, depth 2285.5 m, Vasyugan Formation, intercoal unit, escape traces; Fig. 6 , Vostok-3 well, depth 2527.4 m, Naunak Formation, deformational bioturbation; Fig. 7, Kondakovskaya well, no. 34, depth 2150.95 m, Vasyugan Formation, intercoal unit, deformational bioturbation.
Journal Article
Published: 01 April 2010
Russ. Geol. Geophys. (2010) 51 (4): 329–338.
..., Tyumen’, Naunak, and Mar’yanovka Formations are described from a detailed comprehensive core analysis and log data. The depositional environment for these sediments was predominantly continental. There is evidence for short transgressions in the Ilan (Lower Toarcian) and Peshkovo (Upper Toarcian...
FIGURES
Journal Article
Published: 01 October 2011
Russ. Geol. Geophys. (2011) 52 (10): 1195–1211.
...Fig. 5. Ichnofossil distribution over different types of the Callovian–Oxfordian section of the West Siberian basin. A , Vasyugan Formation, Upper Pur facies subregion; B , Vasyugan Formation, Ob’–Tara and Ob’–Agan subregions; C , Abalak Formation; D , Naunak Formation; E , Tochino...
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Journal Article
Published: 01 October 2011
Russ. Geol. Geophys. (2011) 52 (10): 1212–1227.
..., 1970 ). Another reason that makes this area interesting theoretically and practically is that it is in the zone of transition from the essentially marine Vasyugan Formation to the essentially continental Naunak Formation. The boundary between the formations is drawn in different parts...
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Correlation chart for Oxfordian—Lower Berriasian deposits in the western re...
Published: 01 July 2018
, foraminifers; 9 , spore and pollen assemblages; 10 , age. For other symbols see Fig. 1 . Abbreviations for formation names: gl, Golchikha; jan, Yanovstan; sg, Sigovaya; tch, Tochinka; ab, Abalak; bg, Bazhenov; gr, Georgievka; mr, Mar’yanovka; mks, Maksimkin Yar; vs, Vasyugan; nn, Naunak; tzh, Tyazhin; bgn
Journal Article
Published: 01 August 2013
Russ. Geol. Geophys. (2013) 54 (8): 747–779.
... Formation; marginal-marine and continental sediments in the lowermost sections of the Naunak and Tyazhin Formations. Shale-dominated successions of the Golchikha, Abalak, Danilovo, and Tochin Formations, as well as the Lower Vasyugan Subformation developed to form a regional cap rock ( Kontorovich et al...
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Journal Article
Published: 01 April 2017
Russ. Geol. Geophys. (2017) 58 (3-4): 393–402.
... Formation. In the southeast this interval is characterized by the predominantly terrestrial Naunak Formation. A distinctly distinguishable Pakhomovo Member ( J 2 0 bed), interpreted as a basal part of a transgressive cycle, lies in the base of the Vasyugan, Abalak and Tochino Formations...
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Journal Article
Published: 01 October 2014
Russ. Geol. Geophys. (2014) 55 (10): 1205–1218.
... XII, XIII Sil’ga, Azharma; Naunak Formation XIV Chulym–Taseeva; Tyazhin Formation Most of the Oxfordian ammonites are from the Danilovskoe, Abalak, and Vasyugan Formations. The Oxfordian Stage in the Danilovskoe Formation consists of finely washed mudstone-like glauconitic clays...
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—Regional stratigraphic columns for northern West Siberian basin. At far le...
Published: 01 July 1986
by difference in thickness of formations on the center and limbs of structure (modified from Aleinikov et al, 1980 ). Key to stage abbreviations (from youngest to oldest): d = Danian, m = Maestrichtian, cp = Campanian, s = Santonian, c = Coniacian, t = Turonian, cm = Cenomanian, al = Albian, ap = Aptian, b
Journal Article
Published: 01 August 2003
Russ. Geol. Geophys. (2003) 44 (8): 781–795.
... and Naunak Formations); the Abalak clays continued to accumulate in the west of the lowland. The Oxfordian-Tithonian transgression in the east and the Oxfordian-Kimmeridgian regression in the west may have peneplained the topography and prepared culmination in the plate’s tectonic evolution associated...
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Journal Article
Journal: AAPG Bulletin
Published: 12 May 2021
AAPG Bulletin (2021) 105 (5): 845–864.
... of probabilistic distribution ( Figure 4B ), indicating Jubilee is more likely to be a combination trap with upslope faulting being an important factor in trap formation. Dailly et al. (2012) noted that the Turonian reservoirs appear to be trapped against a downthrown fault toward the northeast. Faulting seems...
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Journal Article
Published: 01 May 2003
Russ. Geol. Geophys. (2003) 44 (5): 432–445.
... of the facies transition of the Vasyugan Formation into the continental Naunak Formation and thus loses its confining-bed properties, which permits fluids to migrate from the Bazhenov Formation into underlying sediments [ 13 ]. Analysis of hydrogeological data suggests the existence of vertical water cross...
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Journal Article
Published: 01 July 2019
Russ. Geol. Geophys. (2019) 60 (7): 801–812.
.... The structural and lithological models were based on maps of lithotypes and structural maps on the roof of the pre-Jurassic basement, the Urman, Togur, Peshkov, and Salat Formations, the Lower Tyumen subformation, the Tyumen, Naunak (Vasyugan), Bazhenov, Tar, Alym, Pokur, Kuznetsov, Ipatov and Talit Formations...
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Journal Article
Published: 01 July 2016
Russ. Geol. Geophys. (2016) 57 (7): 1078–1089.
... Formations (K 1 ); 6–7, Bazhenovo (plus Georgievka) and Vasyugan (Naunak) Formations (J3); 8, Tyumen’ Formation (J 1–2 ); 9, pre-Jurassic basement (PZ). ...
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Journal Article
Published: 01 August 2002
Russ. Geol. Geophys. (2002) 43 (8): 762–790.
... ). The thickness of the f -zone in the explored zone is 44.8 m. Stratigraphic position. The uppermost Bathonian–Callovian; lower part of the Danilov, Abalak, Vasyugan, Naunak, Tochino—lower Sigov Formations (see Fig. 4 ). Late Callovian ammonites identified by S. V. Meledina as (?) Longaeviceras sp. ind...
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Journal Article
Published: 01 July 2018
Russ. Geol. Geophys. (2018) 59 (7): 846–863.
... , foraminifers; 9 , spore and pollen assemblages; 10 , age. For other symbols see Fig. 1 . Abbreviations for formation names: gl, Golchikha; jan, Yanovstan; sg, Sigovaya; tch, Tochinka; ab, Abalak; bg, Bazhenov; gr, Georgievka; mr, Mar’yanovka; mks, Maksimkin Yar; vs, Vasyugan; nn, Naunak; tzh, Tyazhin; bgn...
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