Detail publikace

Mineralogy and petrogenesis of a Ba-Ti-Zr-rich peralkaline dyke from Šebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion

KRMÍČEK, L., CEMPÍREK, J., HAVLÍN, A., PŘICHYSTAL, A., HOUZAR, S., KRMÍČKOVÁ, M., GADAS, P.

Originální název

Mineralogy and petrogenesis of a Ba-Ti-Zr-rich peralkaline dyke from Šebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

A peralkaline, ultrapotassic dyke found at Šebkovice is a mineralogically extreme member of a dyke swarm occurring along the SE border of the Moldanubian Region of the Bohemian Massif. The dyke shows a simple zoning with a very fine-grained marginal zone grading into a medium-grained central zone. It has a primary mineral assemblage of microcline and potassic amphiboles with accessory apatite and altered phlogopite. The core of the dyke and late veinlets contain unique late- to post-magmatic Ba-Ti-Zr-bearing mineral assemblages of baotite, henrymeyerite, titanite, rutile, benitoite and bazirite. In terms of a mineralogical-genetic classification, the Šebkovice dyke can be considered as a new high-silica variety of lamproite and represents a unique expression of post-collisional potassic magmatism on the south-eastern border of the Bohemian Massif. In terms of the modern classification of lamproites, the Šebkovice dyke is the first lamproite recognised in the Variscan orogenic belt.

Klíčová slova

Lamproite; Potassic amphibole; Baotite; Henrymeyerite; Benitoite; Bazirite

Autoři

KRMÍČEK, L., CEMPÍREK, J., HAVLÍN, A., PŘICHYSTAL, A., HOUZAR, S., KRMÍČKOVÁ, M., GADAS, P.

Rok RIV

2011

Vydáno

31. 1. 2011

Nakladatel

Elsevier

Místo

Amsterdam

ISSN

0024-4937

Periodikum

LITHOS

Ročník

121

Číslo

1

Stát

Norské království

Strany od

74

Strany do

86

Strany počet

13

BibTex

@article{BUT50735,
  author="Michaela {Sluková}",
  title="Mineralogy and petrogenesis of a Ba-Ti-Zr-rich peralkaline dyke from Šebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion",
  journal="LITHOS",
  year="2011",
  volume="121",
  number="1",
  pages="74--86",
  issn="0024-4937"
}