PETROPARAGENESES AND POSSIBLE ORIGIN OF THE BUG AREA GRANULITE COMPLEX SUPERCRUSTAL FORMATIONS (WESTERN PART OF UKRAINIAN SHIELD)

https://doi.org/10.15407/mineraljournal.41.01.060

UDC 551.71:552.11/.13/.4

V.P. Kyrylyuk, https://orcid.org/0000-0001-7649-9432
M.I. Bogdanova, https://orcid.org/0000-0002-7850-4482
E.I. Savina, https://orcid.org/0000-0001-5551-8630
Ivan Franko National University of Lviv. 4, Grushevskogo Str., Lviv, Ukraine, 79005
E-mail: Kyrylyuk.V@i.ua

PETROPARAGENESES AND POSSIBLE ORIGIN OF THE BUG AREA GRANULITE COMPLEX SUPERCRUSTAL FORMATIONS (WESTERN PART OF UKRAINIAN SHIELD). Article 1. GENERAL INFORMATION AND ROCK COMPOSITION OF THE PETROPARAGENESES

Language: Russian
Mineralogical journal 2019, 41 (1): 60-70

Abstract: General information. The Bug Area granulite complex within the limits of western part of the Ukrainian shield embraces the territory of about 40000 km2. Seven supercrustal formations are estabishedin it: kinzigite, enderbite-gneiss, leucogranulitic, high-aluminous-quartzite, marble-calciphyre, khondalite and aluminous-basite formations. Their general thickness is about 15-17 kilometers. Accepted terminology. The article defines the terms like: "supercrustal formation", "petroparagenesis" and "petrotype". Rock composition of petroparageneses. Seven main petroparageneses form these supercrustal formations, that include main content of the same supercrustal formations, and three secondary petroparageneses: calciphyr-cristal-schist, magnetite-containing and metabasite-metaultrabasite. Each petroparagenesis includes from two to three petrotypes. Also the article provides the rock formations of petrotypes and their content in petroparagenesis. Major and secondary rock parageneses are clearly recognized when they are observed in full size on well-exposed areas. Herewith very informative are not only the rock parageneses, but also their individual petrotypes, that demonstrate their own typomorphic features. Such features can be represented with rock, mineral and element (geochemical) features as follows: a) peculiarities of rock habitus; b) peculiarities of chemistry that normally are well reflected in the petrographic composition of rocks; c) composition and appearance of the rock-forming and accessory minerals; d) geochemical differences, including isotopic ones, and others. Also there might be signs of rock, mineral and element (geochemical) levels, including: a) features of the external appearance of rocks; b) features of chemistry, which are usually well reflected in the petrographic composition of rocks; c) composition and set of rock-forming and accessory minerals; d) geochemical (including isotope) differences, etc. Typomorphic features of the petrotypes are considered in the next article.
Keywords: granulitic complex, supercrustal formation, petroparagenesis, petrotype, typomorphic features.

References:

  1. Bilonizshka, P.M., Gerenchyk, N.N., Zybova, S.N., Kyrylyuk, V.P., Lashmanov, V.I. and Martynova, S.S. (1981), Problemy osadochnoy geologii dokembriya, Vyp. 6, Nauka, Moscow, RU, pp. 86-89.
  2. Bobrov, O.B., Lysak, A.M., Sveshnikov, K.I., Sivoronov, A.O., Paranko, I.S. and Malyuk, B.I. (2006), Formational analysis of Lover Precambrian complexes of the Ukrainian shield during a leadthrough geological-cartographical works (teoretiko-practical aspects), UkrDGRІ, Kyiv, UA, 164 p.
  3. Venediktov, V.M. (1978), Precambrian of Dniester Area and some geological issues of Ukrainian shield, Nauk. dumka, Kyiv, UA, 162 p.
  4. (1955), Geological dictionary, Vol. 2, Gosgeoltehizdat, Moscow, RU, 445 p.
  5. (2011), Geological dictionary, Vol. 1, Izd-vo VSEGEI, St. Petersburg, RU, 423 p.
  6. Kyrylyuk, V.P., Kolij, V.D., Lashmanov, V.I., Lysak, A.M., Paranko, I.S., Paschenko, V.G., Sveshnikov, K.I., Sivoronov, A.A., Smogolyuk, A.G. and Yatsenko, G.M., Berzenin, B.Z. (1991), Map of geological formations of Precambrian of the Ukrainian shield. Explanatory note, Scale 1 : 500 000, Kyiv, UA, 116 p.
  7. Kyrylyuk, V.P. 1982), Geologicheskiy zhurnal, Vol. 42, No. 3, Kyiv, UA, pp. 88-103.
  8. Kyrylyuk, V.P. (1982), Geologicheskiy zhurnal, Vol. 42, No. 4, Kyiv, UA, pp. 30-41.
  9. Kyrylyuk, V.P. (2005), Visnyk Lviv University. Ser. geol., Vol. 19, Lviv, UA, pp. 20-74.
  10. Kyrylyuk, V.P. (2010), Granulitovye strukturno-formatsionnye kompleksy Ukrainskogo schita - evropeyskiy stratotip, ZUKTS press, Lviv, UA, pр. 8-63.
  11. Kyrylyuk, V.P. (2010), Mezhdunar. nauch.-prakt. konf., 31 maia - 4 iyunia, UkrSGRI press, Kyiv, UA, pp. 87-91.
  12. Kyrylyuk, V.P. (2013), Geologicheskiy zhurnal, No. 4, Kyiv, UA, рр. 102-114.
  13. Kyrylyuk, V.P., Lysak, A.M. and Sveshnikov, K.I. (1979), Methodical pointing on drafting of maps of the formations of Early Precambrian of Ukraine (for the aims of geological cartography and metallogenic prognosis), Kyiv, UA, 178 р.
  14. Yesypchuk, K.Yu., Bobrov, O.B., Stepanyuk, L.M., Shcherbak, M.P., Glevaskiy, E.B., Skobelev, V.M., Drannik, V.S. and Geichenko, M.V. (2004), Correlated chronostratigraphic scheme of Early Precambrian of the Ukrainian Shield (scheme and explanatory note), NSC Ukraine, UkrDGRI, Kyiv, UA, 30 p.
  15. Lazko, E.M., Kyrylyuk, V.P., Lysak, A.M., Sivoronov, A.A. and Yatsenko, G.M. (1984), Geol. zhurn., Vol. 44, No. 2, Kyiv, UA, pр. 103-112.
  16. Lazko, E.M., Kyrylyuk, V.P., Lysak, A.M., Sivoronov, A.A. and Yatsenko, G.M. (1986), Geol. zhurn., Vol. 46, No. 2, Kyiv, UA, pр. 18-26.
  17. Lazko, E.M., Kyrylyuk, V.P., Sivoronov, A.A. and Yatsenko, G.M. (1975), Lower Precambrian of the western part of the Ukrainian shield (age complexes and formations), Vyscha shkola, Lvov, UA, 239 р.
  18. Scherbakov, I.B. (1975), Petrology of Precambrian rocks of the central part of Ukrainian shield, Nauk. dumka, Kyiv, UA, 279 p.
  19. Scherbakov, I.B. (2005), Petrology of the Ukrainian shield, ZUKTS press, Lvov, UA, 366 p.
  20. Scherbakov, I.B., Zyultsle, V.V. and Mineeva, V.N. (1982), Metamorphism of the Ukrainian shield, Nauk. dumka, Kyiv, UA, pp. 69-118.
English