On the Carpathian electrical conductivity anomaly depth study
DOI:
https://doi.org/10.24028/gzh.0203-3100.v36i3.2014.116062Keywords:
Carpathian electrical conductivity anomaly, magnetotelluric sounding, magnetovariational profiling, Wiese induction vector, horizontal magnetic tensorAbstract
Carpathian electrical conductivity anomaly (CECA) was discovered in the 1960ies and intensively studied by both individual institutions and within the framework of international projects in many countries, but without any strategic plan, which should be based on the definition of research objective, abilities of used methods (MVP and MTS) and rules of their interaction. The paper presents the main results of CECA research: construction of induction vectors in more than 1000 points, putting the anomaly on map, estimation by MVP methods of maximum possible depth of anomalous currents center and total longitudinal conductance of anomalous body. True depth of anomaly upper edge was defined by MTS method only in three localities and the works were performed 25-40 years ago. Goal of future CECA researches should be study of its nature (fluids or electronically conducting minerals) and prospects of practical use (minerals, geothermal energy ...). The first step in this direction should be MTS fulfillment (and/or other soundings) over the axis of the CECA to select locations for drilling.References
Adam A., Vero J., Wallner A., 1972. Regional properties of geomagnetic induction arrows in Europe. Acta Geod. Geophys. Mont. Hung. 7 (3-4), 251—287.
Adam A., Wallner A., 1981. Information from electromagnetic induction data on Carpatho-Panno- nian geodynamics. Earth Evolution Sci. (3-4), 280— 284.
Berdichevskiy M.N., Dmitriev V.I., 2009. Models and methods of magnetotellurics. Moscow: Na- uchnyy mir, 680 p. (in Russian).
Bondarenko A.P., Bilinskiy A.I., Sedova F.I., 1972. Geomagnetic variations in the Soviet Carpathians. Kiev: Naukova Dumka, 114 p. (in Russian).
Calota F., Calton J., Jonescu A., Soare A., Steflea V., 1971. Inregistrari de variatii geomagnetice pe teritoriul Pomaniei. P. I. Stud. Cere. Geol. Geof. Geogr., Ser Geof., 9, 323—331.
Ernst T., Brasse H., Cerv V., Hoffmann N., Jankowski J., Jozwiak W., Kreutzmann A., Neska A., Palshin N., Pedersen L.B., Smirnov M., Sokolova E., Varentsov I.M., 2008. Electromagnetic images of the deep structure of the Trans-European Suture Zone beneath Polish Pomerania. Geophys. Res. Lett. 35, L15307. doi:10.1029/2008 GL034610.
Jankowski J., 1965. Short-period variations of the Earth's magnetic field on the territory of Poland and their relations to deep substratium structure. Acta Geophys. Polonica 13, 85—105.
Jankowski J., Tarlovski Z., Praus O., Pecova J., Petr V., 1985. The results of deep geomagnetic sounding in the West Carpathians. Geophys. J. Roy. Astr. Soc. 80, 561—574.
Jozwiak W., 2012. Large-scale crustal conductivity pattern in Central Europe and its correlation to deep tectonic structures. Pure Appl. Geophys. 169, 1737—1747.
Jozwiak W., 2013. Electromagnetic study of lithospheric structure in the marginal zone of East European Craton in NW Poland. Acta Geophysi- ca 61 (5), 1101—1129.
Kharin E.P., 1981. The variability of transfer functions of the electromagnetic field of the Earth in time. Geofizicheskij zhurnal 3(3), 16—23 (in Russian)].
Kovacikova S., Cerv V., Ladanivskyy B. T., Logvinov I.M., Praus O., Tarasov V., 2005. Modeling of conductance within the West and Ukrainian Carpathians. Publ. Inst. Geophys. Pol. Acad. Sci. C-95 (386), 29—37.
Nowozynski K., 2012. Splines in the approximation of geomagnetic fields and their transforms at the Earth's surface. Geophys. J. Int. 189, 1369— 1382.
on to deep structure of the substratum. Acta Geod. Geophys. Mont. Hung. 27 (1), 35—45.
Pajunpaa K., Lahti I., Olafsdottir B., Korja T. and BEAR WG, 2002. Crustal conductivity anomalies in central Sweden and SW Finland. Geophys. J. Int. 150, 695—705.
Pinna E., Soare A., Stanica D., Stanica M., 1992. Carpathian conductivity anomaly and its relati
Praus O., 1971. Electric conductivity of the Earth in Czechoslovakia studied by magnetotelluric and geomagnetic methods. Geophys. Final report XV Ass. IGGU. Praha: Acad., P. 162—186.
Rokityansky I.I., Ingerov A. I., 1999. Electromagnetic investigations of Carpathian electrical conductivity anomaly. Geofizicheskij zhurnal 21 (4), 59—70 (in Russian).
Rokityansky I.I., 1972. Conductivity anomaly in the crust of the Carpathians. Izvestija AN SSSR. Fizika Zemli (10), 97—100 (in Russian).
Rokityansky I.I., 1981. Induction sounding of the Earth. Kiev: Naukova Dumka, 296 p. (in Russian).
Rokityansky I.I., 1988. Fundamental models of conductivity anomalies. Geofizicheskij zhurnal 10 (3), 21—28 (in Russian).
Rokityansky I.I., Kulik S.N., Logvinov I.M., Shuman V.N., 1975. The electric conductivity anomaly in the Carpathians. Acta Geod. Geophys. Mont. Hung. 10 (3), 277—286.
Rokityansky I.I., 1975. Investigation of the electrical conductivity anomalies by magnetovariational profiling method. Kiev: Naukova Dumka, 296 p. (in Russian).
Rokityansky I.I., 1982. Geoelectromagnetic investigation of the Earth's crust and upper mantle. Berlin — Heidelberg — New York: Springer Verlag, 381 p.
Rokityansky I.I., 2012. Fundamental models of conductivity anomalies. Geofizicheskij zhurnal 34 (4), 235—244 (in Russian).
Stanica D., Stanica M., Pinna M., 1990. Magnetotelluric soundings in the Eastern Carpathians — Hurghita area. Rev. Roum. Geophys. 34, 89—95.
Stanica M., Stanica D., Marin-Furnica C., 1999. The placement of the Trans-European Suture Zone on the Romanian territory by electromagnetic arguments. Earth Planets Space 51, 1073—1078.
Stefaniuk M., Ostrowski G., Targosz P., Wojdyla M., 2009. Some problems of magnetotelluric and gravity structural investigations in the Polish Eastern Carpathians. Geologia 35 (4/1), 7—46.
Varentsov Iv.M., Sokolova E.Yu., Martanus E.R., 2005. Array view on electromagnetic transfer functions in the EMTESZ-Pomerania Project. Publ. Inst. Geophys. Pol. Acad. Sci. 386 (C-95), 107—121.
Weaver J.T., 1964. On the separation of local geomagnetic fields into external and internal parts. Zeitchrift fur Geophysik 30, 29—36.
Wiese H., 1965. Geomagnetische Tiefentellurik. Berlin: Akademie Verlag, 146 p.
Wybraniec S., Jankowski J., Ernst T., Pecova J., Praus O., 1999. A new method for presentation of induction vector distribution in Europe. Acta Geophys. Pol. 47 (3), 323—334.
Zytko K., 1997. Electrical conductivity anomaly of the Northern Carpathians and the deep structure of the orogen. Ann. Soc. Geol. Pol. 67, 25—43.
Downloads
Published
How to Cite
Issue
Section
License
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).
