Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen

Gespeichert in:

Bibliographische Detailangaben
Datum:	2010
Hauptverfasser:	Kurilenko, V., Petrova, E., Gusynina, T.
Format:	Artikel
Sprache:	English
Veröffentlicht:	Інститут геофізики ім. С.I. Субботіна НАН України 2010
Schriftenreihe:	Геофизический журнал
Online Zugang:	http://dspace.nbuv.gov.ua/handle/123456789/101637
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!
Назва журналу:	Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen / V. Kurilenko, E. Petrova, T. Gusynina // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 73-75. — Бібліогр.: 6 назв. — англ.

Institution

Digital Library of Periodicals of National Academy of Sciences of Ukraine

id	irk-123456789-101637
record_format	dspace
spelling	irk-123456789-1016372016-06-07T03:02:59Z Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen Kurilenko, V. Petrova, E. Gusynina, T. 2010 Article Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen / V. Kurilenko, E. Petrova, T. Gusynina // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 73-75. — Бібліогр.: 6 назв. — англ. 0203-3100 http://dspace.nbuv.gov.ua/handle/123456789/101637 en Геофизический журнал Інститут геофізики ім. С.I. Субботіна НАН України
institution	Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection	DSpace DC
language	English
format	Article
author	Kurilenko, V. Petrova, E. Gusynina, T.
spellingShingle	Kurilenko, V. Petrova, E. Gusynina, T. Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen Геофизический журнал
author_facet	Kurilenko, V. Petrova, E. Gusynina, T.
author_sort	Kurilenko, V.
title	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen
title_short	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen
title_full	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen
title_fullStr	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen
title_full_unstemmed	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen
title_sort	towards the problem of genesis of pripyat-dnieper-donetsk avlacogen
publisher	Інститут геофізики ім. С.I. Субботіна НАН України
publishDate	2010
url	http://dspace.nbuv.gov.ua/handle/123456789/101637
citation_txt	Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen / V. Kurilenko, E. Petrova, T. Gusynina // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 73-75. — Бібліогр.: 6 назв. — англ.
series	Геофизический журнал
work_keys_str_mv	AT kurilenkov towardstheproblemofgenesisofpripyatdnieperdonetskavlacogen AT petrovae towardstheproblemofgenesisofpripyatdnieperdonetskavlacogen AT gusyninat towardstheproblemofgenesisofpripyatdnieperdonetskavlacogen
first_indexed	2025-07-07T11:10:57Z
last_indexed	2025-07-07T11:10:57Z
_version_	1836986304756187136
fulltext	�� 4� �� !"#�$%&'�("�%()�#+#�' #(&"�&��&,#��-�%()� �)#..'(/ Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen V. Kurilenko, E. Petrova, T. Gusynina, 2010 Institute of Geological Sciences, National Academy of Sciences of Ukraine, Kiev, Ukraine gusynina@gmail.com 1. One of many problems in dynamics of litho- sphere is the origin and development of rift sys- tems inside and on the skirts of ancient platforms, in particular, the Pripyat-Dnieper-Donetsk avlaco- gen in body of East-European platform. The ver- sion about an origin of this avlacogen as a result of "superregional" right-hand shift lengthways Sarmat-Turan lineament, or more global (trans- continental) prolongation of this lineament to the west and to the east corresponding to the Schet- land-Tsinlin fault-displacement [Roslyi, 2006; Is- berg, Starchik, 2007], is well known. Horizontal Model for formation of Pripyat-Dnieper-Donetsk system of formation of paleorifts: a — location of board`s zones of paleorifts and structures of iron-ore formations in earlyproterozoics time (1000 m. years ago); b — present location (1 — magnetic anomalies in earlyproterozoics time (Krivorog`s and Kursk series [Zankevich, 2006]; 2 — boundaries of proterozois geosyn- clines zone; 3 — proterozois fault in massif of the Sarmat`s shield; 4 — boundaries fault of paleorifts; 5 — the trajectory of movement of conventional point A–A1; O–O1 — dislocation of rotation axis of the Ukrainian shield). /#�)-(% '1%.�+,#(� #(%2 4� �� displacement of shift within the limits of described region makes 250—400 km. Our reconstruction confirms displacement on 400 km and assumes turn of the Ukrainian shield clockwise on 38° with respect to southern suburb of the East-European platform in area of the Voro- nezh massif. The radius of turn is 650 km, and the center of rotation is gradually displaced to the "north" on 150 km. As a result initial points O and A (see Figure) have � �=��$�=��>1 ��$�? 1. The above reconstruction is based on the as- sumption of genetic connection of the magnetic anomalies of the Krivoy Rog — Krementchug and Kursk iron-ore formations as uniform linear struc- ture in early proterozoic time. Slanting break (under an angle 60° to an axis) of this structure has begun right-hand shift, formation and expansion of rift cleft. 2. The process of transregional shift started at the beginning of late proterozoic era (1 bln years ago), proceeded non-uniformly, being entered du- ring general planets tectogenes epochs, it was marked by formation of “rifey graben” in a south- east part of the future Dnieper-Donetsk paleorift, it brightly showed itself by formation of described rift system in late devonian epoch and has practically come to naught in cretaceous-paleogen times. However and nowdays in a landscape and a geo- logical structure of region it is possible to observe neotectonic attributes of the latent movement: ring and linear aircosmic anomalies are displays of tan- gential and normal deformations in a sedimentary cover, listric faults [Geology ...,1991]. Shift right- hand deformations are clear visible along borders of rift forming deep breaks, lengthways the Smelov- Kholm diagonal break, in places of breaks of the Sarmat-Turan lineament, they are well traced along chains of salt rods in the central and south-east parts of Dnieper-Donetsk paleorift [Geology ...,1991; Kurilenko, Janshina,1988; Roslyi, 2006]. 3. Rift formation combined with stretching, ex- tension and crushing of basement blocks, it was accompanied by faulting of every possible types, listric chipping off, overturning and dropping of se- parate blocks, extensive landslides. Deformations of a stretching were non-uniform along described system of paleorifts: for the Dnieper-Donetsk gra- ben it was 2—5 km in its extreme north-west, 5— 7 km in a middle part and 10—18 km in a southe- ast. The Pripyat graben was generated mainly un- der influence of shift deformations, and broadening here did not exceed 2,4 km. The paleorifts width also is changeable along all the system spreading. The Pripyat graben extends in the western direction from 110 up to 160 km at thickness of a sedimentary cover from 2,5—4 km above ledges of the base up to 5,5—6,0 km above the immersed blocks. The Dnieper-Donetsk graben extends in a southeast direction from 75—90 km up to 110—130 km, being correlated with increase of a sedimentary cover in board zones from 3—4 km in the west up to 6—7 km in the east, and along an axial zone — from 6 up to 18 km in the same direction. 4. The bottoms of paleorifts (“rift valleys”) are formed by “the breccia of rubbing” arisen under in- fluence of transcontinental shift and consisting main- ly from different sizes products of grinding blocks of crystalline rocks from basement and vulcanites. The range of the sizes of these "products" is very wide: from blocks in volume in hundreds cubic kilometers up to boulders and pebbles. A filler of these breccia are products of erosion and drift from onboard sites (mainly clastits), endogenous materials (effusive and halogens), chemic- and biogenic materials (carbo- nates). The same initially not consolidated depo- sits provided noncompensated filling of paleorifts. Proceeding from the above stated representa- tions, and taking into account an idea about of struc- ture (fractality) and “geoblock divisibility” of the earth's crust [Krasnyi, 2005; Zankevich, 2006], the structure of paleorifts (their board`s and bottom) can be represented as system of relatively stable weak- ly deformed ("rigid") blocks divided by labile (unsta- ble) zones of “hummocking”. Stable blocks under influence of transregional shift deformations exer- cise some progress-rotary movement, and labile zones compensate superfluous pressure, playing a buffer role between blocks. Indicators of labile zones are anticlinal folds and chains of positive structures in a sedimentary cover. The majority of structures have attributes of imposed folding (dragging, sque- ezing, etc), complicated by halokinesis. Within the limits of labile zones the salt domes, often built in rhythmical chains or ring formations are located all. The overwhelming majority of oil and gas fields con- taining the lion's share of oil-gas provinces is rela- ted to labile zones. Thus, the new approach is outlined in the tec- tonic zoning of the Pripyat-Dnieper-Donetsk oil-gas province and allocation on this basis of perspective zones of oil-gas accumulation that should raise a level of a scientific substantiation of accommoda- tion of volumes of exploration. �� 40 �� !"#�$%&'�("�%()�#+#�' #(&"�&��&,#��-�%()� �)#..'(/ Geology and oil-gas content of Dnieper-Donetsk de- pression. Deep breaks and combined oil-gas traps / Eds. V. K. Gavrish, A. I. Nedoshovenko, L. I. Ryab- chin. — @iev: Nauk. dumka, 1991. — 172 p. (in Russian). Isberg R. E., Starchik T. A. Multifactor model of late paleozoic`s geodynamics for the Pripyat paleorift // Lithosphere. — 2007. — 27��.�� .� /�� Krasnyi L. I. Tectonics at the turn of AIA—AA and AA— AI centuries. — St. Petersburg: VSEGEI, 2005. — 164 p. (in Russian). Kurilenko V. S., Yanshina N. A. Influence of %��$)� �� =�� (�� =�� =)��%��$��(�=��-�� **�<��(�%)�� (� ��$�%�� 788�� .�� .� .7� �� Roslyi I. S. Regional riftgenesis, geodynamics and oil-gas content of Dnieper-Donetsk avlacogen. — @iev: UkrDGRI, 2006. — 330 p. (in Ukrainian). Zankevich B. O. Geodynamics and breaks tectonics during formation of Dnieper-Donetsk protorift // Energetics of Earth, its geologic-ecologic manifes- tation, scientific and practical utilization: — @iev: Pub. Co. “Kiev University”, 2006. — P. 155—160 (in Ukrainian). References

Towards the problem of genesis of Pripyat-Dnieper-Donetsk avlacogen

Institution

Ähnliche Einträge