Mesozoic alkali lamprophyres in variscan granitoids of the Male Karpaty and Nizke Tatry Mountains geochronology and geochemistry | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7467020

Reference Type

Journal Article

Title

Mesozoic alkali lamprophyres in variscan granitoids of the Male Karpaty and Nizke Tatry Mountains geochronology and geochemistry

Author(s)

Spisiak, J; Balogh, K

Year

2002

Is Peer Reviewed?

Yes

Journal

Geologica Carpathica
ISSN: 1335-0552

Volume

Issue

Page Numbers

295-301

Language

English

Web of Science Id

WOS:000180123300002

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.

Keywords

Central Western Carpathians; Mesozoic; geochronology; geochemistry; alkali lamprophyres