Chronological implications of the paleomagnetic record of the Late Cenozoic volcanic activity along the Moravia-Silesia border (NE Bohemian Massif)

Open access


This paper presents the results of a paleomagnetic study carried out on Plio-Pleistocene Cenozoic basalts from the NE part of the Bohemian Massif. Paleomagnetic data were supplemented by 27 newly obtained K/Ar age determinations. Lavas and volcaniclastics from 6 volcanoes were sampled. The declination and inclination values of paleomagnetic vectors vary in the ranges of 130 to 174 and -85 to -68° for reversed polarity (Pleistocene); or 345 to 350° and around 62° for normal polarity (Pliocene). Volcanological evaluation and compilation of older geophysical data from field survey served as the basis for the interpretation of these results. The Pleistocene volcanic stage consists of two volcanic phases, fairly closely spaced in time. Four volcanoes constitute the Bruntál Volcanic Field; two others are located 20 km to the E and 65 km to the NW, respectively. The volcanoes are defined as monogenetic ones, producing scoria cones and lavas. Exceptionally, the largest volcano shows a possibility of remobilization during the youngest volcanic phase, suggested by paleomagnetic properties. The oldest one (4.3-3.3 Ma), Břidličná Volcano, was simultaneously active with the Lutynia Volcano (Poland) which produced the Zálesí lava relic (normal polarity). Three other volcanoes of the volcanic field are younger and reversely polarized. The Velký Roudný Volcano was active during the Gelasian (2.6-2.1 Ma) and possibly could have been reactivated during the youngest (Calabrian, 1.8-1.1 Ma) phase which gave birth to the Venušina sopka and Uhlířský vrch volcanoes. The reliability of all available K-Ar data was evaluated using a multidisciplinary approach.

Balogh K. 1985: K/Ar dating of Neogene volcanic activity in Hungary: Experimental technique, experiences and methods of chronologic studies. ATOMKI Rep. D/1, Institute of Nuclear Research, Debrecen, 277-288.

Barth V. 1977: Basaltic volcanoes of the central part of the Nízký Jeseník Mts (in Czech). Čas. Mineral. Geol. 22, 3, 279-291.

Barth V. & Zapletal J. 1978: Geology of the Razová Pyroclastic Complex in the Nízký Jeseník Mts. Sbor. Geol. Věd, Geol. 32, 97-122 (in Czech).

Birkenmajer K., Pécskay Z., Grabowski J., Lorenc M.W. & Zagozdzon P.P. 2002: Radiometric dating of the Tertiary volcanics in Lower Silesia, Poland. II. K/Ar and paleomagnetic data from Neogene basanites near Ladek Zdrój. Sudetes Mts. Ann. Soc. Geol. Pol. 72, 119-129.

Birkenmajer K., Lorenc M.W., Pécskay Z. & Zagozdzon P.P. 2004: Age, cycles and course of migration of the Tertiary basaltic volcanism in Lower Silesia in the light of K/Ar dating. VIII. Ogólnopolska Sesja Naukowa Datowanie mineralów i skal, 9-10 (in Polish).

Cajz V., Schnabl P., Pécskay Z. & Radoň M. 2010: Reconstruction and timing of the Plio-Pleistocene volcanism in surroundings of Bruntál, Nízký Jeseník Mts. In: Křížek M., Nyplová P., Vočadlová K. & Borská J. (Eds.): Geomorphological proceed ings 9 (11. international conference Stage of geomorphological research in 2010). Faculty of Science, Charles University, Praha.

Cassidy J., France S.J. & Locke C.A. 2007: Gravity and magnetic investigation of maar volcanoes, Auckland volcanic field, New Zeland. J. Volcanol. Geotherm. Res. 159, 153-163.

Dědáček K. & Gnojek I. 1980: Technical reports on airborne geophysical research in the Jeseníky area in 1978 a 1979. Geofyzika, Brno, 1-22 (in Czech).

Fediuk F. & Fediuková E. 1985: Postmesozoic alkaline volcanics of northern Moravia. Acta Univ. Carol., Geol. 4, 355-382 (in Czech).

Fediuk F. & Fediuková E. 1989: Ultramafic nodules from basaltoids of northern Moravia. Sbor. Geol. Věd, Geol. 44, 9-49.

Fisher R.A. 1953: Dispersion on a sphere. Proceedings of the Royal Society of London, Series A 217, 295-305.

Gradstein F., Ogg J. & Smith A. Eds. 2004: A Geologic Time Scale 2004. Cambridge University Press, 1-589.

Horský O., Müller K. & Trávníček L. 1972: Investigation of disturbance of the basalt sheet at the damsite Slezská Harta using geological and geophysical methods. Sbor. Geol. Věd, HIG, 10, 39-57 (in Czech with English resume).

Jahn J.J. 1907: Über das quartäre Alter der Basalteruptionen im märisch-schlesischen Niederen Gesenke. Sitz.-Ber. K. Akad. Wiss., Math.-Naturwiss., Wien 116, 1777-1821.

Jahn J.J. 1909: Über die Altersfrage der sudetischen Basalteruptionen. Sitz.-Ber. K. Akad. Wiss., Math.-Naturwiss., Wien 118, 1-9.

Kadlec E., Novotný A., Bednář J., Blížkovský M. & Špaček B. 1972: Review of the gravity data processing in the Nízký Jeseník area. I. period, partial report of the “Geophysical research of the Culm basement in the Nízký Jeseník Mts.” Geofyzika, Brno, 85 (in Czech).

Kirschvink J.L. 1980: The least-squares line and plane and the analysis of palaeomagnetic data. Geophys. J. Int. 62, 699-718.

Kletetschka G., Pruner P., Schnabl P., Šifnerová K., Tasáryová Z., Manda Š. (in print): Magnetic scanning and interpretation of paleomagnetic data from Prague Synform’s volcanics. Stud. Geophys. et Geodaetica.

Kolofíková O. 1976: Geological interpretation of measurment of magnetic properties of basalts. An example of the Chřibský les lava flow of the Velký Roudný volcano (Nízký Jeseník Mts.). Čas. Mineral. Geol. 21, 287-348.

Kopecký L. 1987: Young volcanism of the Bohemian Massif I -structural-geological and volcanological study. Geologie a Hydrometalurgie Uranu, Stráž pod Ralskem 11, 3, 30-67 (in Czech).

Kováč M., Hók J., Minár J., Vojtko R., Bielik M., Pipík R., Rakús M., Král J., Šujan M. & Králiková S. 2011: Neogene and Quaternary development of the Turiec Basin and landscape in its catchment: a tentative mass balance model. Geol. Carpathica 62, 4, 361-379.

Krs M. 1968: The scope rock magnetism in geology. Sbor. Geol. Věd, Geol. 7, 43-75.

Lidner H., Gabriel G., Götze H.-J., Kaeppler R. & Suhr P. 2006: Geological and geophysical investigation of maar structures in the Upper Lusatia region (East Saxony). Z. Dtsch. Gesell. Geowiss. 157/3, 355-372.

Lustrino M. & Wilson M. 2007: The circum-Mediterranean anorogenic Cenozoic igneous province. Earth Sci. Rev. 81, 1-65.

Marek F. 1969: Magnetism of the basalt formation of the Lesser Jeseník Mts. Trav. Inst. Géophys. Acad. Tschécoslovaque Sci. 307, 129-164.

Marek F. 1973: Paleomagnetism of the inner Sudeten series of volcanoes of the basalt formation of the Nízký Jeseník Mts. Sbor. Geol. Věd, UG, Praha 11, 31-66.

Marek F. 1974: Palaeomagnetism of the outer Sudeten series of volcanoes of the Nízký Jeseník basalt formation and its surroundings. Sbor. Geol. Věd, UG, Praha 12, 131-153.

Pécskay Z., Přichystal A., Tomek Č. & Zapletal J. 2009: New radiometric data of volcanics from northern Moravia and Silesia. Moravskoslezské paleozoikum 2009, 15-16 (in Czech).

Schnabl P., Novák J.K., Cajz V., Lang M., Balogh K., Pécskay Z., Chadima M., Šlechta S., Kohout T., Pruner P. & Ulrych J. 2010: Magnetic properties of high-Ti basaltic rocks from the Krušné hory/Erzgebirge Mts. (Bohemia/Saxony), and their relation to mineral chemistry. Stud. Geophys. et Geodaetica 54, 1, 77-94.

Shrbený O. & Vokurka K. 1985: The present state of geochronological and isotope research of neovolcanics of the Bohemian Massif and their inclusions. Czech Geol. Surv., Praha, 1-31 (unpubl.).

Steiger R.H. & Jäger E. 1977: Subcommission on geochronology: Convention on the use of decay constants in geo-and cosmochronology. Earth Planet. Sci. Lett. 36, 359-362.

Šalanský K. 2004: Geophysics of the neovolcanites in Czech Republic. Czech Geol. Surv., Spec. Pap., Praha 17, 1-174 (in Czech).

Šalanský K. & Gnojek I. 2002: Geomagnetic anomalies in Czech Republic. Czech Geol. Surv., Spec. Pap., Praha 14, 1-141 (in Czech).

Šibrava V. & Havlíček P. 1980: Radiometric age of Plio-Pleistocene volcanic rocks in the Bohemian Massif. Věst. Ústř. Úst. Geol. 55, 129-150.

Štěpančíková P., Hók J., Nývlt D., Dohnal J., Sýkorová I. & Stemberk J. 2010: Active tectonics research using trenching technique on the south-eastern section of the Sudetic Marginal Fault (NE Bohemian Massif, central Europe). Tectonophysics 485, 269-282.

Tarling D.H. & Hrouda F. 1993: The magnetic anisotropy of rocks. Chapman and Hall, London, 1-217.

Ulrych J., Pivec E., Lang M., Balogh K. & Kropáček V. 1999: Cenozoic intraplate volcanic rock series of the Bohemian Massif. Geolines 9, 123-129.

Ulrych J., Dostal J., Adamovič J., Jelínek E., Špaček P., Hegner E. & Balogh K. 2011: Recurrent Cenozoic volcanic activity in the Bohemian Massif (Czech Republic). Lithos 123, 133-144.

Vahle C. & Kontny A. 2005: The use of field dependence of AC susceptibility for the interpretation of magnetic mineralogy and magnetic fabrics in the HSDP-2 basalts, Hawaii. Earth Planet. Sci. Lett. 238, 110-129.

Vokurka K. & Bendl J. 1992: Sr isotope geochemistry of Cenozoic Basalts from Bohemia and Moravia. Chem. d. Erde 52, 3, 179-187.

Vokurka K. & Bendl J. 1993: Nd Isotopes of Cenozoic Basalts from Northern Moravia. Chem. d. Erde 53, 4, 307-313.

Geologica Carpathica

The Journal of Geological Institute of Slovak Academy of Sciences

Journal Information

IMPACT FACTOR 2017: 1.169
5-year IMPACT FACTOR: 1.431

CiteScore 2017: 1.26

SCImago Journal Rank (SJR) 2017: 0.551
Source Normalized Impact per Paper (SNIP) 2017: 0.836

Cited By


All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 109 109 2
PDF Downloads 57 57 5