eISSN: 2619-0087 DOI: 10.31084/2619-0087

Lithofacial features of the Upper Devonian sediments in the mendym section (Inzer-Usolsky trough, Southern Urals)

Year: 2022

Pages: 23-31

UDC: 551.83+551.734.5 (470.57)

Number: 1

Type: scientific article

Summary:

The article considers the lithofacial features of Upper Devonian carbonate rocks in the Mendym section, in rock outcrops along the right and left banks of the Mendym River flowing through the Mendym settlement. Five lithofacies were identified in the rocks: micro-grained wackstones with ammonoids, crinoid-brachiopod coquina — rudstones-grainstones at the upper part of the Frasnian; lumpy-breccia-like wackstones with ammonoids, bioturbated wackstones with calcispheres and peloid-clumped packstones with foraminifera in the Famennian. The complex of lithofacial features indicates the conditions of the deep-sea shelf of the ramp type with the influence of storms.

Keywords:

Famennian, bioturbation, wackstone, coquina, Kamsko-Kinel trough system, tempestites, deep-sea shelf, ramp, ammonoids, conodonts, foraminifera, Southern Urals

References:

  • Abramova A.N. Franskij jarus zapadnogo sklona Juzhnogo Urala [Fransian stage of the western slope of the Southern Urals]. Preprint. Ufa: 1999. 54 p. (in Russian)
  • Chuvashov B.I. Istorija razvitija i bionomicheskaja harakteristika pozdnedevonskogo bassejna na zapadnom sklone srednego i juzhnogo Urala [History of development and bionomic characteristics of the Late Devonian basin on the western slope of the Middle and southern Urals]. — M.: Nauka, 1968. — 132 p. (in Russian)
  • Domrachev S.M. Devon hrebta Karatau i prilegajushhih rajonov Juzhnogo Urala. [Devonian of the Karatau ridge and adjacent areas of the Southern Urals]. — Tr. VNIGRI, nov. ser. — Vyp. 61, 1952. — P. 5–121. (in Russian)
  • Dunham R.J. Classification of carbonate rocks according to depositional texture // Classification of Carbonate Rocks (ed. Ham W.E.): Tulsa. — AAPG — Memoir 1, 1962. — P.108–121.
  • Flügel E. Microfacies of carbonate rocks. — Berlin: Springer-Verlag. — 2010. — 984 pp.
  • Fortunatova N.K., Zajceva E.L., Kononova L.I., Baranova A.V., Bushueva M.A., Miheeva A.I., Afanas’eva M.S., Obuhovskaja T.G. Litologo-facial’naja i biostratigraficheskaja harakteristika verhnedevonskih otlozhenij opornoj skvazhiny 1 Melekesskaja [Melekesskaja vpadina, Volgo-Ural’skaja oblast’) Lithological-facies and biostratigraphic characteristics of the Upper Devonian sediments of the reference well 1 Melekesskaya (Melekesskaya depression, Volga-Ural region)] // Bulletin. MOIP. — 2018. T.93. №5–6. S. 3–49. (in Russian)
  • Gorozhanin V.M., Gorozhanina E.N., Zagranovskaja D.E., Zaharova O.A. O stroenii Kamsko-Kinel’skojsistemy progibov [On the structure of the Kamsko-Kinel system of throughs] // Izvestija vuzov. Geologija i razvedka, — 2019. №3. — P. 9–20. (in Russian)
  • Guide-book of excursion for the Paleozoic and Upper Precambrian sections of the Western slope of the Southern Urals and PreUralian regions / Edited by V. N. Puchkov/. Ufa, 1995. 165 p.
  • Junusov M.A. Оsobennosti stroenija Kamsko-Kinel’skoj sistemy progibov i ih vlijanie na neftegazonosnost’ karbonatnyh otlozhenij devona i karbona Severnoj Bashkirii \\ Geologija i neftegazonosnost’ karbonatnyh otlozhenij devona i karbona Severnogo Prikam’ja i prilegajushhih rajonov [Features of the structure of the Kama-Kinel system of throughs and their influence on the oil and gas content of carbonate deposits of the Devon and Carboniferous of Northern Bashkiria \ Geology and oil and gas content of carbonate deposits of the Devon and Carboniferous of Northern Kama region and adjacent areas]. M.: Nedra, 1965. — 147–150. (in Russian)
  • Koroljuk I.K., Shhekotova I.A., Melamud E.L., Sidorov A.D. Formacii i tektonika Juzhnogo Priural’ja //
    Problemy izuchenija i tektonicheskogo analiza geologicheskih formacij. [Formation and tectonics of the southern Urals // problems of study and tectonic analysis of geological formations]. — M.: Nauka, 1983. — p.81–91. (in Russian)
  • Lozin E.V. Geologija i neftenosnost’ Bashkortostana [Geology and oil resources of Bashkortostan]. — Ufa: BashNIPIneft’, 2015. — 704 p. (in Russian)
  • Maslov V. A. Litologija i facial’naja harakteristika verhnedevonskih karbonatnyh otlozhenij zapadnogo sklona Juzhnogo Urala // Voprosy geologii i neftenosnosti devonskih otlozhenij zapadnoj Bashkirii i smezhnyh oblastej [Lithology and facies characteristics of Upper Devonian carbonate deposits of the western slope of the Southern Urals // Issues of geology and oil content of Devonian deposits of Western Bashkiria and adjacent regions]. Ufa. 1958. Р.83–88. (in Russian)
  • Mirchink M.F., Hachatrjan R.O., Mkrtchjan O.M. Tektonika i proishozhdenie Kamsko-Kinel’skoj sistemy progibov [Tectonics and the origin of the Kamsko-Kinel system of throughs]// Voprosy tektoniki neftenosnyh oblastej. M.: Izd-vo AN SSSR, 1962. Р.86–101. (in Russian)
  • Pazuhin V.N., Kulagina E.I., Sedaeva K.M. Granica devona — karbona na zapadnom sklone Juzhnogo Urala // Tipovye razrezy karbona i potencial’nye global’nye stratotipy [The Devonian — Carboniferous boundary on the western slope of the Southern Urals // Typical carboniferous sections and potential global stratotypes]: mat-ly Mezhdunar. polevogo soveshh., Juzhnoural. sessija. Ufa: Dizajn PoligrafServis, 2009. Р. 22–33. (in Russian)
  • Sinicyn I.I., Sinicyna Z.A. Geologicheskaja karta SSSR masshtaba 1:200 000 i ob#jasnitel’naja zapiska. [Geological map of the USSR scale 1:200 000 and explanatory note] List N 40 — XXI. M.: Nedra, 1968. 82 p. (in Russian)
  • Sjundjukov A.Z. Litologija, facii i neftegazonosnost’ karbonatnyh otlozhenij Zapadnoj Bashkirii (verhnij devon, karbon, nizhnjaja perm’) [Lithology, facies and oil and gas content of carbonate deposits of Western Bashkiria (Upper Devonian, Carboniferous, Lower Permian]. M.: Nauka, 1975. 174 p. (in Russian)
  • Tjazheva A.P. Stratigrafija devonskih otlozhenij zapadnogo sklona Juzhnogo Urala. — «Devonskie otlozhenija Bashkirii». Ch. 1. Stratigrafija. [Stratigraphy of Devonian deposits of the western slope of the Southern Urals. “Devonian deposits of Bashkiria”]. Part 1. Stratigraphy. M., Publishing House of the USSR Academy of Sciences, 1961] M., Izd. AN SSSR, 1961. P. 5–130. (in Russian)
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eISSN: 2619-0087 DOI: 10.31084/2619-0087