МІКРОФАЦІАЛЬНІ РІЗНОВИДИ ТА ПАЛЕОНТОЛОГІЧНА ХАРАКТЕРИСТИКА ВІЗЕЙСЬКИХ КАРБОНАТНИХ ПОРІД ПІВДЕННОЇ ПРИБОРТОВОЇ ЗОНИ ДДЗ

М. Лящова

doi:10.17721/1728-2713.73.01

Authors

M. Liashchova Taras Schevchenko National University of Kyiv Institute of Geology, 90 Vasylkivska Str., Kyiv, 03022, Ukraine

DOI:

https://doi.org/10.17721/1728-2713.73.01

Keywords:

microfacies, foraminifera, carbonate sedimentation, Visean, the Southern zone of Dnieper-Donets basin

Abstract

Foraminifera and microfacies of the Visean carbonate rocks of the Southern zone Dnieper-Donets basin are studied. Microscopy study of carbonate rocks allowed us to establish their mineral composition, textural and structural features, the degree and nature of the secondary changes and to describe the main microfacies. The Visean carbonate rocks are represented by the following microfacies types: bioclastic, foraminiferal, foraminifera-algal, algal, microbial (peloidal), aggregate-grain (grapestones) grainstones; bioclastic, foraminiferal, algal, foraminifera-algal, crinoidal packstone and wackstone. The study of faunal debries and algal flora combined with a microfacies analysis allowed us to approach the reconstruction of carbonate sedimentation conditions. Biota and microfacies of the studied carbonate rocks indicate the presence of four facies zones (FZ). These are FZ 2 deep shelf, FZ 6 platform-margin shoals, FZ 7 platform interior-normal marine and FZ 8 platform interior – restricted. The standard microfacies types (SMF) are represented by SMF 8-9 (bioclastic wackestone), SMF 10 (bioclastic packstone), SMF 16 (microbial (peloid) grainstone), SMF 17 (аggregate-grain (grapestone) grainstone), SMF 18 (bioclastic grainstone and packstone with abundant and rock-building benthic foraminifera or calcareous green algae). This shows that the studied rocks were deposited in a carbonate platform zone and its slopes. Stagnant areas with limited water circulation are locally occurred.

References

Akhiyarov A.V., Semenova K.M. (2013). Paleozoyskiye karbonatnye platformy Prikaspiyskoy vpadiny kak neftegazopoiskovye kriterii. Nauchnotekhnicheskiy sbornik "Vesti gazovoy nauki", 5 (16), 238-252. [In Russian].

Berchenko O.I., Suhov O.A. (2013). Izvestkovye vodorosli vizejskih otlozhenij Dono-Dneprovskogo progiba. Kyiv: Naukova dumka, 165 p. [In Russian].

Bilyk A.O., Vakarchuk G.I., Ivanyshyn V.I. (2002). Stratygrafiya, korelyatsiya i perspektyvy naftogazonosnosti turneyskykh i vizeyskykh vidkladiv Dniprovsko-Donetskoyi zapadyny. Chernigiv: Chernigivski oberegy, 111 p. [In Ukrainian].

Vakarchuk S.G. (2003). Geologiya, litologiya i faciyi karbonatnykh vidkladiv vizeyskogo yarusu centralnoyi chastyny Dniprovsko-Donetskoyi zapadyny u zvyazku z naftogazonosnistyu. Chernigiv: ThNTI, 163 p. [In Ukrainian].

Vdovenko M.V. (1980). Vizeyskiy yarus. Zonalnoe raschlenenie i paleozoogeograficheskoe rayonirovanie (po foraminiferam). Kiev: Naukova dumka, 169 p. [In Russian].

Efimenko V.I. (1995). Ekologiya i fatsialnaya priurochennost foraminifer i vodorosley perekhodnykh turneysko-vizeyskikh otlozheniy yugovostochnoy pribortovoy chasti Dneprovsko-Donetskoy vpadiny. Zbіrnik naukovikh prats. Kyiv: Geologіchniy іnstitut Kyivskogo unіversitetu, 102 p. [In Russian].

Kuznetsov V.G. (1998). Paleozoyskoe karbonatonakopleniye v Prikaspiyskoy vpadine i eye obramlenii. Litologija i poleznyye iskopaemyye, 5, 494–503. [In Russian].

Maslov V.P., (1973). Atlas porodoobrazuyushchikh organizmov (izvestkovykh I kremnevykh). Moskow: Nauka, 267 p. [In Russian].

Polyetayev V.I., Vdovenko M.V., Shhogolyev O.K. et al. (2011). Stratotypy regionalnykh stratyrafichnykh pidrozdiliv karbonu i nyzhnoyi permi Dono-Dniprovskogo progynu. Kyiv: Logos, 236 p. [In Ukrainian].

Gozhyk P.F. et al. (2013). Stratygrafiya verkhnyogo proterozoyu ta fanerozoyu Ukrayiny: u dvox tomax. T.1: Stratygrafiya verkhnyogo proterozoyu, paleozoyu ta mezozoyu Ukrayiny. Kyiv: Logos, 638 p. [In Ukrainian].

Wilson J. L. (1975). Carbonate Facies in Geologic History. New York : Springer-Verlag, 471 p.

Fortunatova N.K., Kartseva O.A., Baranova A.V., Agafonova G.V., Ofman I.P. (2005). Atlas strukturnykh komponentov karbonatnykh porod. Moskow: VNIGNI, 440 p. [In Russian].

Khvorova I.V. (1957). Osobennosti izucheniya karbonatnyh porod. Metody izuchenija osadochnyh porod. Moscow: Gosgeoltehizdat, 284-307. [In Russian].

Cook H. E., Zhemchuzhnikov V. G.,. Zempolich W. G et al. (1997). Devonian and Carboniferous carbonate platforms in the Karatau of S. Kazakstan: outcrop analogs for coeval carbonate reservoirs in the N. Caspian Basin [Abs.]. Am. Ass. Petrol. Geol. Bull, 81, 8, 1367-1368.

Dunham R. J. (1962). Classification of carbonate rocks according to depositional texture. Classification of carbonate rocks. American Association of Petroleum Geologists Memoir, 1, 108-121.

Falahatgar M., Mosaddeg H. (2012). Microfacies and palaeoenvironments of the Lower Carboniferous Mobarak Formation in the Kiyasar section, Northern Iran. Rosario. Boletín del Instituto de Fisiografía y Geología, 82, 9-20.

Flügel E. (2010). Microfacies of Carbonate Rocks: Analysis, Interpretation and Application. 2nd Edition. Springer-Verlag Berlin Heidelberg, 984 p.

Folk R. L. (1959). Practical petrographic classification of Limestone. American Association of Petroleum Geologists, 43, 38 p.