THE GEOMORPHOLOGICAL INDICATIONS OF HORIZONTAL NEOTECTONIC MOVEMENTS ALONG THE BOUNDARY BETWEEN BALTIC SHIELD AND WEST-ARCTIC PLATFORM (MURMANSK REGION)
https://doi.org/10.15356/0435-4281-2015-3-27-38
Abstract
Horizontal component of neotectonic movements in platform conditions can be identified by comparing the morphostructural pattern of the region with the known structural models of horizontal deformations. Through the juncture of the Baltic shield and Barents plate, which is the part of the Western Arctic platform the two sutures pass: Karpinsky lineament – latitudinal zone of discontinuities, by which crystalline basement is dipping step by step seaward and thrust-shear structure Trollfjord–Rybachiy–Kanin. Characteristic features for this area are as follows: concentration of cracks, bearing tectonic mirrors and furrows slip, faults and near-fault deformations, manifested by the valleys and canyons, and the steps of relief, the formation of which cannot be explained by selective denudation of the substrate. The epicenters of earthquakes are numerous here. By the geological data the morphostructures were distinguished here with the indications of rotations of blocks, leading to the subsidences in the areas of stretching and shears along an echelon faults and also movements in mutually antithetic directions – right and left strike-slips of unknown age. Antithetic movements along the plate boundaries can be explained by the complex nature of the interaction of the East European platform with its frame.
References
1. Leonov M.G. Inner mobility of foundation and tectogenesis of activated platforms. Geotectonic, 1993, no. 5, pp. 16–33 (in Russ.).
2. Kopp M.L. Mobilist neotectonics of the South-East European platforms, in Trudy GIN RAN (Proceedings of GIN RAS). Moscow: Nauka (Publ.), 2004, iss. 552, 340 p.
3. Zykov D.S. Newest geodynamics of the North Karelian zone (Baltic craton), in Trudy GIN RAN (Proceedings of GIN RAS). Moscow: GEOS (Publ.), 2001, iss. 534, 146 p.
4. Kopp M.L. Structures of the lateral welling-up in the Alpine-Himalayan collision belt, in Trudy GIN RAN (Proceedings of GIN RAS). Moscow: Nauch. Mir (Publ.), 1997, iss. 506, 313 p.
5. Reading H.G. Characteristics and recognition of strike-slip fault systems. Spec. Publ. Int. Ass. Sediment. 1980. № 4. P. 7–26.
6. Kostenko N.P., Makarov N.V., Korchuganova N.I. Vyrazhenie v rel’efe skladchatykh I razryvnykh deformatsiy. Strukturno-geomorfologicheskoe deshifrirovanie aerofotosnimkov, kocmicheskikh snimkov I topograficheskikh kart (Folded and ruptural deformations expression in relief. Structural-and-geomorphological interpretation of air photo, space images and topographic maps). Moscow: Izd-vo MGU (Publ.), 1999, 120 p.
7. Zykov D.S. Towards the methods of detailed geodynamics reconstructions of the newest stage over the geomorphologic signs. Geomorfologiya (Geomorphology RAS), 1999, no. 2, pp. 34–42 (in Russ.).
8. Rastsvetaev L.M. Paragenetic approach of the structural analysis of the disjunctive tectonic dislocations, in Problemy strukturnoy geologii I fiziki tektonicheskikh protsessov (Issues of structural geology and physics of the tectonic processes). Part II. Moscow: GIN RAN (Publ.), 1987, pp. 173–235.
9. Geomorfologiya Kerelii I Kol’skogo poluostrova (Geomorphology of the Karelia and Kola Peninsula). V.D. Legkov, B.N. Mozheev. Ed. Leningrad: Nedra (Publ.), 1977, 183 p.
10. Karta noveyshey tektoniki SSSR I sopredel’nykh territoriy (Map of the newest USSR tectonics and adjunctive territories). Scale 1:5000000. N.I. Nikolaev. Ed. Leningrad: VSEGEI (Publ.), 1980.
11. Karta noveyshey tektoniki Severnoy Evrazii (Map of the newest Northern Eurasia tectonics). Scale 1:5000000. A.F. Grachev. Ed. MPR RF, RAN, 1997.
12. Stroenie litosfery rossiyskoy chasti Barents-regiona (Lithosphere structure in the Russian part of the Barents Region). N.V. Sharov. Ed. Petrozavodsk: Izd-vo KNC RAN (Publ.), 2005, 318 с.
13. Baluev A.S., Zhuravlev B.A., Terekhov E.N., Przhiyalgovskiy E.S. Tektonika Belogo morya I prilegayushchikh territoriy (Ob”yasnitel’naya zapiska k “Tektonicheskoy karte Belogo morya I prilegayushchikh territoriy m-ba 1:1500000”) (Tectonics of the White Sea and adjunctive territories (note explaining the “Tectonic map of the White Sea and adjunctive territories, scale 1:1500000)). M.G. Leonov. Ed. Moscow: GEOS (Publ.), 2012, 104 p.
14. Tektonicheskaya karta Barentseva morya I severnoy chasti Evropeyskoy Rossii m-ba 1:2500000 (s ob’yasnitel’noy zapiskoy) (Tectonic map of the Barents Sea and northern part of the European Russia, scale 1:2500000 (with explanation note)). N.A. Bogdanov, V.E. Khain. Ed. Moscow: PKO “Kartografiya” (Publ.), 1996, 94 p.
15. Avenarius I.G. Morfostrukturniy analiz pri izuchenii kulturnogo I prirodnogo naslediya Zapadno-Arkticheskogo regiona Rossii (Morphostructural analysis in studies of cultural and natural heritage of the Russian West-Arctic Region). Moscow: Paulsen (Publ.), 2008, 187 p.
16. Mityaev M.V. Morfotektonika I pozdnechetvertichnaya istoriya formirovaniya Murmanskogo poberezh’ya I prilegayushchego shel’fa Barentseva morya (Morphotectonics and late Quaternary history of the Murmansk coast and adjunctive shelf of the Barents Sea). PhD thesis. Moscow: MGGA (Publ.), 2001, 22 p.
17. Lukashov A.A., Romanenko F.A. Character and morphodynamics of the disjunctive north-east limit of the Baltic craton (Karpinskiy lines), in Tektonika I geodinamika skladchatykh poyasov I platform fanerozoya (Tectonics and geodynamics of the Phanerozoic folded belts and platforms). Proc. of XLIII Tecton. Conf. Moscow: GEOS (Publ.), 2010, vol. 1, pp. 430–434.
18. Assinovskaya B.A. Mechanics of the seismic focus in the north-east part of the Baltic craton. Izv. AN SSSR. Fizika Zemli, 1986, no. 1, pp. 101–105 (in Russ.).
19. Nikonov A.A., Nikolaeva S.B. Karpinskiy lineament on the border of the Fennoscandian crystalline shield and the Barents plate as active tectonic and seismic zone, in Aktivnye razlomy I ih znachenie dlya otsenki seismicheskoy opasnosti: sovremennoe sostoyanie problemy (Active folds and its value for seismic hazard evaluation: modern issue state). Proc. of XIX Int. Sciet.-Pract. Conf. Moscow, 7–10 April 2014, pp. 232–237.
20. Nikonov A.A. The heaviest historical earthquake on the Murmansk coast (according to legends of the Dvina coast-dwellers), in Geodinamika I ekologiya Barents-regiona v XXI veke (Geodynamics and ecology of the Barents Region in XXI century). Proc. All-Russ. Conf. devoted to F.N. Yudakhin. Archangelsk, 14–16 September 2014, pp. 189–192.
21. Freund R. Rotation of strike-slip faults in Sistan, southeast Iran. Journ. Geology. 1970. V. 78. P. 188–200.
22. Mezhdunarodnaya tektonicheskaya karta Evropy I smeznykh oblastey m-ba 1:2500000 (International tectonic map of the Europe and adjunctive regions, scale 1:2500000). A.A. Bogdanov, V.E. khain. Ed. Moscow: GUGK (Publ.), 1981.
Review
For citations:
Zykov D.S. THE GEOMORPHOLOGICAL INDICATIONS OF HORIZONTAL NEOTECTONIC MOVEMENTS ALONG THE BOUNDARY BETWEEN BALTIC SHIELD AND WEST-ARCTIC PLATFORM (MURMANSK REGION). Geomorfologiya. 2015;(3):27-38. (In Russ.) https://doi.org/10.15356/0435-4281-2015-3-27-38
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