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Chokrakian

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Journal Article
Published: 01 January 2022
Russ. Geol. Geophys. (2022) 63 (1): 13–22.
...S.V. Popov; V.G. Pronin Abstract —We present data on the most complete Neogene sections and wells of northern Ustyurt and the Cis-Aral area. Miocene deposits in the northern chinks and the North Ustyurt depression are composed of sediments of the Tarkhanian, Chokrakian, Karaganian, Konkian...
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Schematic map of distribution of the Tarkhanian-<span class="search-highlight">Chokrakian</span> facies and thick...
Published: 01 January 2022
Fig. 4. Schematic map of distribution of the Tarkhanian-Chokrakian facies and thicknesses in the North Ustyurt depression. 1 , sandy deposits; 2 , red-colored clays; 3 , variegated clays; 4 , dominantly gray-colored clays; 5 , isopachites for thicknesses of Tarkhanian–Chokrakian deposits
Series: Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/GSL.SP.2000.173.01.13
EISBN: 9781862394216
... of the EP basin was largely a carbonate platform covered by warm, marine waters. From the end of the Tarkhanian to the Early Chokrakian there was an overall emergence throughout the basin, which is indicated by an influx of siliciclastic sediments. The fossil assemblage indicates that normal marine...
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Schematic map of distribution and facies of middle Miocene (younger than th...
Published: 01 January 2022
Fig. 5. Schematic map of distribution and facies of middle Miocene (younger than the Chokrakian) deposits of the northern Ustyurt. The scheme shows the oldest sediments overlapped by younger ones. Deposits: 1 , middle Sarmatian; 2 , lower Sarmatian; 3 , Konkian (include Kartvelian bedswith
Series: Geological Society, London, Special Publications
Published: 01 January 2017
EISBN: 9781862399600
... in the Middle Miocene (Chokrakian) and reached its maximum rate at the end of the Miocene ( c . 5 Ma). The collision between the Arabian and Eurasian plates caused inversion of the relief and the two fold–thrust belts of the Greater and Lesser Caucasus, with a foreland basin in between, were formed...
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Lithological log of the Maikop Group and concentrations and ratios of selec...
Published: 01 March 2017
Figure 8. Lithological log of the Maikop Group and concentrations and ratios of selected biomarkers. Chok = Chokrakian; Eoc. = Eocene; Fm. = Formation; HBI = highly branched isoprenoid; MTTC ratio = methyltrimethyltridecylchroman ratio (trimethyl MTTC/sum of methylated MTTCs); n.e. = not exposed
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Lithological log of the Maikop Group exposed along the Belaya River togethe...
Published: 01 March 2017
Figure 4. Lithological log of the Maikop Group exposed along the Belaya River together with carbonate contents, element ratios and bulk geochemical parameters. The top of the Maikop Group (base Tarkhanian [Tarkh]) is chosen as 0 m. Chok = Chokrakian; dol = dolomite; Eoc. = Eocene; Fm. = Formation
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A geologic profile along А–B and B–C lines on the northern Ustyurt chink in...
Published: 01 January 2022
horizon; P 3 2 − N 1 1 b g , Baigubek Formation; N 1 1 b t , Beshtyubya Formation; N 1 2 c h , Chokrakian Formation; N 1 2 k g , Karaganian; N 1 2 k n , Konkian; N 1 2 s m , Sarmatian.
Journal Article
Journal: Geology
Published: 07 December 2018
Geology (2019) 47 (1): 35–38.
... , https://doi.org/10.1016/j.gloplacha.2017.09.013 . Peryt , T.M. , Peryt , D. , Jasionowski , M. , Poberezhskyy , A.V. , and Durakiewicz , T. , 2004 , Post-evaporitic restricted deposition in the Middle Miocene Chokrakian-Karaganian of east Crimea (Ukraine) : Sedimentary...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2010
GSA Bulletin (2010) 122 (3-4): 465–486.
..., with Cretaceous rocks to the north ( Plate 2 ). At ∼45.5°E the oldest units exposed are Tarkhanian and Chokrakian, with Tarkhanian, Chokrakian, and Sarmatian strata absent east of ∼46.5°E. Exposures east of 47°E are predominantly Akchagyl and Apsheron, with exposures of Akchagyl decreasing eastward until...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 2017
AAPG Bulletin (2017) 101 (3): 289–319.
...Figure 8. Lithological log of the Maikop Group and concentrations and ratios of selected biomarkers. Chok = Chokrakian; Eoc. = Eocene; Fm. = Formation; HBI = highly branched isoprenoid; MTTC ratio = methyltrimethyltridecylchroman ratio (trimethyl MTTC/sum of methylated MTTCs); n.e. = not exposed...
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Series: Geological Society, London, Special Publications
Published: 01 January 2007
DOI: 10.1144/SP285.18
EISBN: 9781862395336
.... 13. Paleogeographic scheme of Kerch peninsula in Chokrakian time (after Peryt et al. 2004 b ). 1, Land; 2, relatively deep-water part of Chokrakian sea; 3, shore line of late Tarkhanian sea; 4, assumed boundary of area of late Chokrakian gypsum accumulation; 5, areas where late Chokrakian...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP464.2
EISBN: 9781786203724
...), these rocks have been attributed to the Lower Miocene (Kozakhurian, Tarkhanian). Overlying carbonate-rich rocks have been dated as lower NN5 (Chokrakian–Konkian) and NN6 (Konkian and younger). Kaliakra canyon fill Seismic data show that the uppermost part of the drilled succession in well Samotino More...
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Journal Article
Published: 16 September 2016
Petroleum Geoscience (2016) 22 (4): 381–391.
..., on the Kerch peninsula, only Chokrakian (Langhian) and Sarmatian (Serravallian–Tortonian) gypsum deposits were documented ( Arkhangel'skii et al . 1930 ; Hryniv et al . 2007 ). Therefore, we interpret the lack of Pontian (Messinian) evaporites around the Black Sea margin as additional evidence of a fast...
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Series: Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP340.11
EISBN: 9781862395886
... a, columns 1–3 and Fig.  4 a). Middle Miocene: Tarkhanian, Chokrakian, Karaganian and Konkian regiostages – Late Miocene: Early and Middle Sarmatian regiostage (Fig. 3a, columns 1–3, Fig. 4b) This time a sublatitudinal...
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Journal Article
Published: 01 July 2006
Journal of Paleontology (2006) 80 (4): 684–699.
..., is usually simply referred to as a transitory episode of the Paratethyan history between the fully marine Tarkhanian and Chokrakian and the definitive brackish Maeotian and Pontian s.l. To date, the patterns and trends of environmental evolution of this basin during the Sarmatian s.l. have been interpreted...
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... line-drawing profile 07-84-11; and (D) legend. Figure 7. (A) Unconformity of Meotian-Pontian (m-p)/Upper Sarmatian, Shiraqui formation (Upper Sarmatian [U. Sarm], ca. 10 Ma) strata (Kura foreland); (B) unconformity of Maykopian (MKP, Oligocene–Lower Miocene)/Middle Miocene (Chokrakian) strata...
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Series: Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP340.8
EISBN: 9781862395886
...-ch, Karaganian–Chokrakian (Middle Miocene); P 3 -N 1 1 , Oligocene–Lower Miocene; P 1-2 , Paleocene–Eocene; K 1-2 , Cretaceous; K 1 , Lower Cretaceous; K 2 , Upper Cretaceous; T-J-PZ, Triassic–Jurassic–Palaeozoic; AR–PR, Archaean–Proterozoic. The Cretaceous–Cenozoic succession has been drilled...
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