Mesozoic alkali lamprophyres in variscan granitoids of the Malé Karpaty and Nízke Tatry mountains - Geochronology and geochemistry

Ján Spišiak, Kadosa Balogh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Mesozoic alkali lamprophyres from the Malé Karpaty Mts and Nizke Tatry Mts granitoids have a similar petrographic pattern. The textures are phyric, with amphibole and clinopyroxene (Cpx) (and/or olivine) phenocrysts. Cpx are zonal and correspond to diopside. Amphibole are zoning too and correspond to kaersutites. On the basis of chemical composition they can be ranked with alkaline lamprophyres. The K/Ar age (approx. 100 Ma) of these dykes corresponds to the age of the Cretaceous alkaline basalt/basanite in the Križna Nappe of the Central Western Carpathians.

Original languageEnglish
Pages (from-to)295-301
Number of pages7
JournalGeologica Carpathica
Volume53
Issue number5
Publication statusPublished - Oct 1 2002

Keywords

  • Alkali lamprophyres
  • Central Western Carpathians
  • Geochemistry
  • Geochronology
  • Mesozoic

ASJC Scopus subject areas

  • Geology

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