Miocene volcanism in the Visegrád Mountains (Hungary): An integrated approach to regional volcanic stratigraphy

D. Karátson, István Oláh, Z. Pécskay, E. Márton, S. Harangi, Alfréd Dulai, Tibor Zelenka, Szabolcs Kósik

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A combined volcanological, petrographical, paleontological, radiometric and paleomagnetic approach to the Middle Miocene volcanism of the Visegrád Mountains, Hungary, constrains their eruptive activity. The volcanic evolution is divided into three stages on the basis of paleomagnetic data. The 1st stage andesitic to dacitic explosive eruptions occurred in a submarine environment ≥16 Ma. Their products show normal polarity and CCW declinations. Scattered extrusive dacitic activity closely followed ≤16 Ma into a reverse polarity stage. A more voluminous, subaerial, andesitic activity (16-15 Ma) produced a large variety of volcaniclastic rocks, mostly block-and-ash- and debris-flow breccias, and lava domes/flows accompanied by subvolcanic bodies. The main eruptive centre was the Keserus Hill explosive lava dome/complex. Within the andesitic activity, that partly overlapped the dacitic extrusive activity, two paleomagnetic stages can be defined. These indicate a CCW rotation within a reverse polarity stage, 15.5-15.3 Ma ago according to K/Ar data. All of the three paleomagnetic stages can also be found in the neighbouring Börzsöny Mts. At the same time, the latter is characterized by a subsequent final stage (with no rotation in the High Börzsöny lava dome complex) that is missing in the Visegrád Mts. With respect to paleomagnetism and the sporadic, uncertain K/Ar data

Original languageEnglish
Pages (from-to)541-563
Number of pages23
JournalGeologica Carpathica
Volume58
Issue number6
Publication statusPublished - Dec 2007

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lava dome
integrated approach
volcanism
stratigraphy
Miocene
mountain
explosive
underwater environment
rock block
ash flow
paleomagnetism
debris flow
volcanic eruption

Keywords

  • Badenian
  • K/Ar geochronology
  • Lava dome/flow complexes
  • Paleomagnetism
  • Submarine to emergent activity
  • Volcanology

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Miocene volcanism in the Visegrád Mountains (Hungary) : An integrated approach to regional volcanic stratigraphy. / Karátson, D.; Oláh, István; Pécskay, Z.; Márton, E.; Harangi, S.; Dulai, Alfréd; Zelenka, Tibor; Kósik, Szabolcs.

In: Geologica Carpathica, Vol. 58, No. 6, 12.2007, p. 541-563.

Research output: Contribution to journalArticle

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