On plotting the scheme of fracture-mega-block tectonics of the Ukrainian Shield in a scale 1 : 500 000
Keywords:the Ukrainian Shield, mega-block, fracture zone, structural-formational complex, geophysical fields, shearing zones
The main principles have been proposed for discussion on composing the Scheme of fracrture-mega-block tectonics of the Ukrainian Shield in a scale 1 : 500 000 supported by a decision of Inter-departmental tectonic committee of Ukraine as a basis for plotting the Tectonic map of the Ukrainian Shield in the mentioned scale. The existing maps and schemes of the blocky subdivision of the Ukrainian Shield considerably differ from each other especially because the fact that the unified principles of blocky and especially mega-blocky subdivision for the whole shield were not yet formulated then and the criteria for subdivision and mapping of inter-mega-block fracture zones were not supported. Such criteria are being considered in this work, and examples of schemes of fracture-block tectonics of three sheets in a scale 1 : 200 000 composed on their base have been given. It is proved that the Scheme of fracture-mega-block structure of the Ukrainian Shield must reflect the present-day blocky subdivision of the earth crust formed at the border of Early and Middle Proterozoic, at the very end of establishment of the granite socle of the shield. Only such mega-blocks and blocks and in the first place fault zones, which separate them, may be exactly identified and mapped that is an important condition, because the most part of deposits and ore manifestations of the shield are just related to the fracture zones. More ancient margins of mega-blocks and fault zones in the areas of Early Proterozoic tectonic-magmatic activation are hypothetical and cannot be mapped unambiguously. It has been shown that while plotting the Scheme of fracture-mega-block tectonics of the Ukrainian Shield the priority belongs to geophysical methods.
Geological map of the crystalline base of the scale of 1 : 200 000. Sheet M-36-XXXI (Pervomaisk), 1990. Kiev: Foundation of GP “Ukrainian Geological Company” (in Russian).
Geological Dictionary, 1973. Moscow: Nedra, Vol. 2, 456 p. (in Russian).
Geochronology of Early Precambrian of the Ukrainian Shield. Archean, 2005. Ed. N. P. Shcherbak. Kiev: Naukova Dumka, 244 p. (in Russian).
Geochronology of Early Precambrian of the Ukrainian Shield. Proterozoic, 2008. Ed. N. P. Shcherbak. Kiev: Naukova Dumka, 240 p. (in Russian).
Gintov O. B., 2005. Field tectonophysics and its application for the studies of deformations of the Earth’s crust of Ukraine. Kiev: Feniks, 572 p. (in Russian).
Gintov O. B., 2014. Scheme of faulting periodization in the Earth’s crust of the Ukrainian Shield — new data and consequences. Geofizicheskiy zhurnal 36(1), 3—18 (in Russian).
Gintov O. B., Yentin V. A., Muchak S. V., Pavlyuk V. N., Zyultsle V. V., 2016. Structural-petrophysical and tectonophysical base of the geological map of crystalline basement of the central part of Golovanevsk suture zone of the Ukrainian Shield. Geofizicheskiy zhurnal 38(3), 3—28 (in Russian).
Gintov O. B., Pashkevich I. K., 2010. Tectonophysi-cal analysis and geodynamic interpretation of the three-dimensional geophysical model of the Ukrainian Shield. Geofizicheskiy zhurnal 32(2), 3—27 (in Russian).
Yentin V. A., 2005. Geophysical base of tectonic map of Ukraine in scale 1 : 1 000 000. Geofizicheskiy zhurnal 27(1), 74—84 (in Russian).
Yentin V. A., Guskov S. I., Orlyuk M. I., Gintov O. B., Osmak R. V., 2015. Map of absolute gravity field values in Ukraine and some aspects of its possible interpretation. Geofizicheskiy zhurnal 37(1), 53—61 (in Russian).
Yentin V. A., Shimkiv L. M., Nechayeva T. S., Dzyuba B. M., Gintov O. B., Pashkevich I. K., Krasovskiy S. S., 2002. Preparation of the geophysical ba-sis of the tectonic map of Ukraine of scale 1 : 1 000 000. Kiev: Geoinform of Ukraine, 55 p. (in Ukrainian).
Orlyuk M. I., Pashkevich I. K., Eliseeva S. V., 2008. Magnetic characteristic of the zones of articulation of large tectonic structures of the Baltic and Ukrainian Shields. Relationship between the surface and deep structures of the Earth’s crust with the deep: Materials of the 14th international conference. Petrozavodsk: Karelian Research Center of the Russian Academy of Sciences, P. 96—99 (in Russian).
Pavlyuk V. M., Bobrov A. B., Vysotskiy B. L., Dovgan G. M., Zhovinskiy E. Ya., Kostenko N. N., Lykov L. I., Tsymbal S. M., 2008. Report on the topic “Geology, petrology, geochemistry, age and ore-bearing mafic-ultramafic associations of the western part of the US”. Books 1—6. The State Enterprise “Ukrainian Geological Company”. Kiev, 683 p. (in Ukrainian).
Starostenko V. I., Gintov O. B., Pashkevich I. K., Burakhovich T. K., Kulik S. N., Kupriyenko P. Ya., Kutas R. I., Makarenko I. B., Orlyuk M. I., Tsvetkova T. A., 2007. Metallogeny of the Ukrainian Shield: regularities in the location of deposits of ore minerals, connection with the deep structure and dynamics of the lithosphere. Geofizicheskiy zhurnal 29(6), 3—31 (in Russian).
Starostenko V. I., Pashkevich I. K., Kutas R. I., 2002. Depth structure of the Ukrainian Shield. Geofizicheskiy zhurnal 24(6), 36—48 (in Russian).
Tectonic map of Ukraine, 2007. 1 : 1 000 000. Pt. 1. Explanatory note. Eds D. S. Gurskiy, S. S. Kruglov. Kyiv: UkrDGRI, 95 p. (in Ukrainian).
The Tectonic map of Ukraine on a scale of 1 : 1 000 000. Pt. II. Tectonics of the foundation of the Ukrainian Shield. Scale 1 : 2 000 000, 2007. Explanatory note. Eds D. S. Gurskiy, V. P. Kirilyuk. Kiev: UkrGGRI, 78 p. (in Ukrainian).
Tsvetkova T. A., Bugaenko I. V., Zaets L. N., 2016. Velocity divisibility of the mantle beneath the Ukrainian Shield. Geofizicheskiy zhurnal 38(4), 75—88 (in Russian).
Shevchuk V. V., 2012. The ratio of Proterozoic autochthonous granite formation and deformation processes within the Talnian fault zone (Ukrainian Shield). Visnyk Kyivskogo universitetu. Ser. Geologiya. (56), 5—7 (in Russian).
Shevchuk V. V., Lavrenyuk M. V., Kravchenko D. V., 2013. Fundamentals of structural analysis. Kiev: IPC “Kiev University”, 287 p. (in Ukrainian).
Shcherbakov I. B., 2005. Petrology of the Ukrainian Shield. Lviv: Publ. House. ZUKTs, 366 p. (in Russian).
How to Cite
Copyright (c) 2020 Geofizicheskiy Zhurnal
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).