Electrical conductivity anomalies in the contact zones of Archean and Proterozoic geobloks on the Ukrainian and Baltic Shields

Authors

  • I. Rokityansky Subbotin Institute of Geophysics, National Academy of Sciences of Ukraine, Ukraine
  • E. Yu. Sokolova Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences, Russian Federation
  • A. V. Tereshyn Subbotin Institute of Geophysics, National Academy of Sciences of Ukraine, Ukraine
  • A. G. Yakovlev Lomonosov Moscow State University, Russian Federation
  • Working group LADOGA

DOI:

https://doi.org/10.24028/gzh.0203-3100.v40i5.2018.147490

Keywords:

magnetovariational sounding, horizontal magnetic tensor, induction vectors, electrical conductivity anomalies, Precambrian Shields, Archean and Proterozoic geoblocks, transregional lineaments and geophysical anomalies

Abstract

Kirovograd (KA) and Ladoga (LA) anomalies of the crustal electrical conductivity are located in the Sarmatian and Fennoscandinavian domains of the East European Craton. In the paper the main attention is paid to the areas of anomalies, which are juxtaposed with the regional linear zones of Archean (AR) and Proterozoic (PR) geoblocks junction. For Fennoscandia, the analysis is based on data from the latest magnetotelluric (MTS) and magnetovariational (MVP) studies with emphasis on the anomalous fields of horizontal components of geomagnetic variations (tensor M). Comparison of the geoelectric parameters of the KA and LA reveals the prominent features of their similarities and differences. Both anomalies consist of two quasi-parallel conductors “А” and “Б”, distant one from another on 50—100 km. The main conductors “A” are located within megablocks of the PR age. They were detected by the anomalous behavior of geomagnetic variations (MVP method) and have a maximum frequency response of the MVP parameters (induction vectors and tensor M) at the periods T0 » 1 ¸ 2 thousand seconds, which gives the estimates of the total longitudinal conductance G » (1—3)×108 S×m for both KA and LA anomalies. Subparallel conductors “Б” produce extremal responses at higher frequencies (T0 » 100 ¸ 300 s) and are less conductive (G » (0,4—2)×107 S×m). Conductor “Б” directly marks the AR-PR border, which passes through regional faults: the Yanisyarvinsky on the Baltic Shield and the Krivorozhsko-Kremenchugsky on the Ukrainian Shield. Recent studies reveal the existence of Baryatinska anomaly of electrical conductivity on the western slope of the Voronezh massif which can be considered as the northern continuation of the КА up to 54,5° of northern latitude. The southern extension of the LA is the Ilmenska anomaly at the 58° of northern latitude, apparently running to 56° and having a branch, probably, extending up to the Baryatinska anomaly. These data give rise the hypotheses of the Trans-European submeridional chain of electrical conductivity anomalies (TECAE), stretching from the northern end of the Gulf of Bothnia to the Black Sea. We present geophysical materials supporting this assumption, with the most solid one being the general spatial coincidence of the TECAE with the gradient zones of the transcraton permanent magnetic field anomalies (PMFA), where the positive PMFA are located east of the electrical conductivity anomalies, and the negative ones are west of them.

References

Azarov, N. Ya., Antsyferov, A. V., Sheremet, E. M., Hlevasskyi, E. B., Esypchuk, K. E., Kulyk, S. N., ... Kurlov, N. K. (2006). Geological and geophysical model of the Krivoy Rog―Kremenchuk suture zone of the Ukrainian Shield. Kiev: Naukova Dumka (in Russian).

Akramovsky, I. I., Bogdanov, L. A., Bogdanov, Yu. B., Nahabtsev, S. A., & Petrov, B. V. (1998). Sche-me of the deep structure of the Earth’s crust. 1 : 2 500 000. Geological map of the Russian Federation scale 1 : 1 000 000. Map of Quaternary Formations. P-(35)-37. Petrozavodsk (in Russian).

Aleksanova, E. D., Baglaenko, N. V., Varentsov, Iv. M., Kulikov, V. A., Logvinov, I. M., Lozovsky, I. N., ... Yakovlev, D. V. (2011). Comparison of geophysical fields in the Kirovograd and Kursk conductivity anomalies zones: The current state of Earth sciences (Proceedings of the International conference dedicated to the memory of Viktor Khain, Moscow, February 1—4, 2011) (pp. 33—37). Moscow: Faculty of Geo-logy Moscow State University (in Russian).

Aleksanova, E. D., Varentsov, Iv. M., Kulikov, V. A., Logvinov, I. M., Lozovskiy, I. N., Pushkarev, P. Iu., ... Yakovlev, A. H. (2013). Deep electrical conductivity anomalies in the northern part of the Voronezh anteclise. Geofizika, (2), 32—37 (in Russian).

Berdichevskiy, M. N., & Dmitriev, V. I. (2009). Models and methods of magnetotellurics. Moscow: Nauchnyy Mir (in Russian).

Bystrevskaya, S. S., Gavrish, V. K. Nedoshovenko, A. I. et al. (1985). Cosmotektonic map of Ukraine and its predictive value. Geologicheskiy zhurnal, 45(6), 18—24 (in Russian).

Varentsov, Iv. M., Kovachikova, S., Kulikov, V. A., Logvinov, I. M., Tregubenko, V. I., & Yakovlev, A. G. (2012). Working group KIROVOGRAD. Synchronous magnetotelluric and magnetovariational soundings on the western slope of the Voronezh massif. Geofizicheskiy zhurnal, 34(4), 90—107 (in Russian).

Sharov, N. V. (Ed.). (2004). Deep structure and seismicity of the Karelo-Kola region and its surroundings. Petrozavodsk: Karelian Research Center of the Russian Academy of Sciences (in Russian).

Gordienko, V. V., Gordienko, Iv. V., Zavgorodnya, O. V., Kovachikova, S., Logvinov, I. M., Tarasov, V. N., & Usenko, O. V. (2005). Ukrainian Shield (geophysics, deep processes). Kiev: Publ. of the Institute of Geophysics, NAS of Ukraine (in Russian).

Grachev, A. F. (1987). Rift zones of the Earth. Moscow: Nedra (in Russian).

Dyakonova, A. G., Ingierov, A. I., & Rokityansky, I. I. (1986). Electromagnetic soundings on the East European Platform and the Urals. Kiev: Naukova Dumka (in Rusian).

Zhamaletdinov, A. A., & Kulik, S. N. (2012). First-rate anomalies of electro-conductivity on the Globe. Geofizicheskiy zhurnal, 34(4), 22—39. https://doi.org/10.24028/gzh.0203-3100.v34i4. 2012.116747.

Zhamaletdinov, A. A., Kolesnikov, V. E., Skoro-hodov, A. A., Shevtsov, A. N., Nilov, M. Yu., Ryazantsev, P. A., ... Kiryakov, I. A. (2018). Results of the constant current electroprofi-ling in complex with AMTZ on the profile crossing the Ladoga anomaly. Trudy KarNTS RAN. Ser. Geologiya Dokembriya, (2), 91—110. doi: 10.17076/geo636. (in Russian).

Ingerov, A. I., Bugrimov, L. P., Pelyushenko, V. M., Boyko, A. Z., Rokityansky, I. I., Lysenko, E. S., ... Tomchakov, L. I. (1990). The regional studies MTS results along the Uzhgorod—Voroshilovgrad and Artashat—Akhaltsikhe geotravers with the aim of deep-seated structure study of the Earth’s crust. Report for 1987—1990 on the title 248/87. Dnipropetrovsk: Ukrgeology (in Russian).

Ingerov, A. I., Bugrimov, L. P., Rokytansky, I. I., & Romashkin, A. I. (1986). Report on MTS researches for geoelectric section study of the crust through of the Uchchyna Kiliya—Kryvyi Rih—Kharkov geotravetes in 1984—1985. Report for 1984—1985 under the title 248/84. Vol. 1. Dnipropetrovsk: Ministry of Geology of the USSR, Funds of the Central Electric Power Station (in Russian).

Kovtun, A. A., Vagin, S. A., Vardanyants, I. L. (1998). Structure of the crust and mantle along the Suoyarvi—Vyborg profile by magnetotelluric data. Vestnik Sankt-Peterburgskogo universiteta. Ser. 4. Fizika. Khimiya, (4), 25—34 (in Russian).

Kovtun, A. A., Vardanyants, I. L., Legenkova, N. P., Smirnov, M. Yu., & Uspensky, N. I. (2004). Features of the Karelian region structure according to geoelectric researches. In N. V. Sharov (Ed.), Deep structure and seismicity of the Karelian-Kola region and its surroundings (pp. 102—130). Petrozavodsk: Karelian Research Center of the Russian Academy of Sciences (in Russian).

Kovtun, A. A., Vardanyants, I. L., & Uspensky, N. I. (2011). Comparison of seismic and geoelectric models of the Ladoga-Bothnic anomalous zone. Voprosy geofiziki, (44), 124—133 (in Rus-sian).

Kulikov, V. S., Svetov, S. A., Slabunov, A. I., Kulikova, V. V., Pauline, A. K., Golubev, A. I., ... Gogol, M. A. (2016). Geological map of Southeast Fennoscandia (scale 1 : 750 000): a new approach to mapping. Trudy Karelskogo nauchnogo tsentra RAN, (2), 3—41. doi: 10. 17076/geo444 (in Russian).

Kulikov, V. A., Aleksanova, E. D., Varentzov, Iv. M., Zaitsev, S. A., Lozovsky, I. N., Lubnina, N. V., ... Ionicheva, A. P. (2018). Baryatin electric conductivity crustal anomaly by results of MT field studies. Geofizika, (1), 31—43 (in Russian).

Logvinov, I. M. (2012). Geoelectrical characteristics of the crust and mantle of the south-west part of the Eastern European Platform and the Carpathians. Doctor¢s thesis. Kyiv: IGF NASU (in Russian).

Logvinov, I. M., & Tarasov, V. N. (2005). Geoelectric 2D model of the Kirovograd electrical conductivity anomaly. Geofizicheskiy zhurnal, 27(5), 754—769 (in Russian).

Mints, M. V., Sokolova, E. Yu. & LADOGA Working group. (2018). Volumetric model of the de-ep structure of the Svekofennian accretionary orogen according to the data of the MOU—OGT, MTS and density modeling. Trudy KarNTS RAN. Ser. Geologiya Dokembriya, (2), 34—61. doi: 10.17076/geo656 (in Russian).

Orlyuk, M. I., & Pashkevich, I. K. (2012). Deep sources of regional magnetic anomalies and the connection with transverse faults. Geofizicheskiy zhurnal, 34(4), 224—234. https://doi.org/10.24028/gzh.0203-3100.v34i4.2012. 116776 (in Russian).

Starostenko, V. I., & Gintov, O. B. (Eds). (2018). Essays on geodynamics of Ukraine. Kiev: Publ. of the Institute of Geophysics, NAS of Ukraine (in Russian).

Pigulevskiy, P. I. (2012). The structure and mineralogy of the Earth’s crust and upper mantle of the eastern part of the Ukrainian Shield by the complex geological and geophysical studies results. Doctor¢s thesis. Kyiv: Kyiv National University (in Russian).

Rokityansky, I. I. (1975). Investigation of the electrical conductivity anomalies by the magnetovariational profiling method. Kiev: Naukova Dumka (in Russian).

Rokityansky, I. I., Kulik, S. N., Logvinov, I. M., & Rokityanskaya, D. A. (1982). Geomagnetic variations anomalies in the northwest of the European part of the USSR. Izvestiya AN SSSR. Fizika Zemli, (11), 101—106 (in Russian).

Rokityansky, I. I., Kulik, S. N., & Rokityanskaya, D. A. (1981). Ladoga electrical conductivity anomaly. Geofizicheskiy zhurnal, 3(3), 97—99 (in Russian).

Rokityansky, I. I., Logvinov, I. M., & Luginina, N. A. (1969). Magnetovariation profiling on the Ukrainian Shield. Izvestiya AN SSSR. Fizika Zemli, (3), 100—111 (in Russian).

Rokityansky, I. I., Tereshyn, A. V., Tregubenko, V. I., Golubtsova, N. S., Ingerov, A. I., & Savchenko, T. S. (2012). Overview of the observations of the MVP—MTS in the southern part of the Kirovograd electrical conductivity anomaly and the first experience of film modeling of the structure of the Ukrainian Shield. Geofizicheskiy zhurnal, 34(3), 92—101. https://doi.org/10.24028/gzh.0203-3100.v34i3.2012. 116644 (in Russian).

Sokolova, E. Yu., Golubtsova, N. S., Kovtun, A. A., Kulikov, V. A., Lozovsky, I. N., Pushkarev, ... Yakovlev, A. G. (2016). The results of synchronous magnetotelluric and magnetovariational sounding in the area of the Ladoga elect-rical conductivity anomaly. Geofizika, (1), 48—61 (in Russian).

Sokolova E.Yu. & LADOGA Working group. (2017). Experiment of synchronous MT/MV sounding of Ladoga electrical conductivity anomaly: new evidence of the crust structure on the southeast part Baltic Shield. Depth structure and geodynamics of the Ladoga area: Materials of the All-Russian conference with international participation (pp. 205—214). Petrozavodsk: Publ. Institute of Geology, Karelian Research Center, Russian Academy of Sciences (in Russian).

Taran, Y. V., Zaitsev, S. V., Sokolova, E. Yu., & Pushkarev, P. Yu. (2017). Investigation of the inversion of new MT/MV sounding data by Vyborg—Suoyarvy profile through the Ladoga electric conductivity anomaly. Depth structure and geodynamics of the Ladoga area: Materials of the All-Russian conference with international participation (pp. 224—230). Petrozavodsk: Publ. Institute of Geology, Ka-relian Research Center, Russian Academy of Sciences (in Russian).

Khain, V. E. (2001). Tectonics of the continents and oceans (2000). Moscow: Nauchny Mir (in Russian).

Sharov, N. V. (2017). Lithosphere of Northern Europe by seismic data. Petrozavodsk: Karelian Research Center of the Russian Academy of Sciences (in Russian).

Artemieva, I. M., & Shulgin, A. (2015). Is the Proterozoic Ladoga Rift (SE Baltic Shield) a rift? Precambrian Research, 259, 34—42. https: //doi.org/10.1016/j.precamres.2014.08.011.

Bogdanova, S. V., Pashkevich, I. K., Gorbachev, R., & Orlyuk, M. I. (1996). Riphean rifting and major Palaeoproterozoic crustal boundaries in the basement of the East European Craton: geology and geophysics. Tectonophys, 268(1-4), 1—21. https://doi.org/10.1016/S0040-1951 (96)00232-6.

Fujiwara, S., & Toh, H. (1996). Geomagnetic transfer functions in Japan obtained by first order geomagnetic Survey. Journal of geomagnetism and geoelectricity, 48(8), 1071—1101. https://doi.org/10.5636/jgg.48.1071.

Hjelt, S. E., Korja, T., Kozlovskaya, E., Lahti, I., Yliniemi, J. & BEAR and SVEKALAPKO Seismic Tomography Working Group. (2006). Electrical conductivity and seismic velocity structures of the lithosphere beneath the Fennoscandian Shield. Geol. Soc., London, Memoirs, 32, 541—559. https://doi.org/10.1144/GSL. MEM.2006.032.01.33.

Ingerov, A. I., Rokityansky, I. I., & Tregubenko, V. I. (1999). Forty years of MTS studies in the Ukraine. Earth, Planets and Space, 51(10), 1127—1133. https://doi.org/10.1186/BF03351586.

Kukkonen, I. T. (2011). Outokumpu Deep Drilling Project 2003—2019. Geological Survey of Finland, Espoo. Special Paper 51.

Korja, T., Engels, M., Zhamaletdinov, A. A., Kovtun, A. A., Palshin, N. A., Smirnov, M. Yu., ... the BEAR Working Group. (2002). Crustal conductivity in Fennoscandia — a compilation of a database on crustal conductance in the Fennoscandian Shield. Earth, Planets and Space, 54(5), 535—558. https://doi.org /10.1186/BF03353044.

Marchenko A., & Orliuk M. (2010). 3D magnetic model of the East European Craton and its effect at near-surface and satellite heights. Geofizicheskiy zhurnal, 32(4), 96—98.

Mints, M. V., Dokukina, K. A., Konilov, A. N., Philippova, I. B., Zlobin, V. L., Babayants, P. S., ... Zamozhniaya, N. G. (2015). East European Craton: Early Precambrian history and 3D models of deep crustal structure (Vol. 510). Geological Society of America Special Paper. http://dx.doi.org/10.1130/2015.2510.

Mints, M. V., Bush, W. A., & Ageev, S. N. (2014). Bryansk—Kursk—Voronezh intra-continental collisional orogen (East European craton). Geodynamics and Tectonophysics, 5(3), 717—742. doi: 10.5800/GT-2014-5-3-0151.

Pajunpää, K. (1987). Conductivity anomalies in the Baltic Shield in Finland. Geophysical Journal International, 91(3), 657—666. https://doi.org/10.1111/j.1365-246X.1987.tb01663.x.

Pajunpää, K., Heikka, J., & Korja, T. (1983). Magnetometer array studies in Finland. Journal of Geomagnetism and Geoelectricity, 35(11-12), 543—553. https://doi.org/10.5636/jgg.35. 543.

Schmucker, U. (1970). Anomalies of geomagnetic variations in the southwestern United States. Bull. Scripps. Inst. Oceanogr, 13, 165.

Vaittinen, K., Korja, T., Kaikkonen, P., Lahti, I., & Smirnov, M. Yu. (2012). High-resolution magnetotelluric studies of the Archaean-Proterozoic border zone in the Fennoscandian Shield, Finland. Geophysical Journal International, 188(3), 908—924. https://doi.org/10. 1111/j.1365-246X.2011.05300.x.

Varentsov, Iv. M. (2007). Arrays of simultaneous EM soundings: design, data processing and analysis. In V. V. Spichak (Ed.), EM sounding of the Earth’s interior. Methods in geochemistry and geophysics (Vol. 40, pp. 259—273). Amsterdam: Elsevier.

Downloads

Published

2018-11-26

How to Cite

Rokityansky, I., Sokolova, E. Y., Tereshyn, A. V., Yakovlev, A. G., & LADOGA, W. group. (2018). Electrical conductivity anomalies in the contact zones of Archean and Proterozoic geobloks on the Ukrainian and Baltic Shields. Geofizicheskiy Zhurnal, 40(5), 208–244. https://doi.org/10.24028/gzh.0203-3100.v40i5.2018.147490

Issue

Vol. 40 No. 5 (2018)

Section

Articles

License

Copyright (c) 2020 Geofizicheskiy Zhurnal

Creative Commons License

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).