Publication detail

Geochemistry of Cenozoic volcanic rocks of the Faroe Islands with a focus on their ultra-trace contents of Hg

ŠIŠKOVÁ, P. KRMÍČEK, L. COUFALÍK, P.

Original Title

Geochemistry of Cenozoic volcanic rocks of the Faroe Islands with a focus on their ultra-trace contents of Hg

Type

abstract

Language

English

Original Abstract

We focused our study on determination of ultra-trace mercury contents (by means of atomic absorption spectrometry) in volcanic rocks from the North Atlantic Igneous Province to test the hypothesis about the presence of continental metamorphic basement beneath the Faroe Islands. The results of combined optical microscopy, electron microprobe and whole-rock chemical study revealed that the studied volcanites are fine grained and aphyric to feldspar-phyric tholeiitic basalts with primary phenocrysts or microphenocrysts of plagioclase and pyroxene ± olivine in a matrix composed of tiny plagioclase laths ± tachylyte in various stages of alteration. Contents of Hg show great variability between samples even within the same formation. We presume that elevated concentrations of Hg in some samples are related to stagnation of individual pulses of parent magma in the continental crust below the Faroe Islands.

Keywords

Faroe Islands; tholeiitic basalt; mercury content; continental crust

Authors

ŠIŠKOVÁ, P.; KRMÍČEK, L.; COUFALÍK, P.

Released

25. 4. 2016

Publisher

Masaryk University

Location

Brno

ISBN

978-80-210-8203-8

Book

Proceedings: Students in Polar and Alpine Research Conference 2016

Edition

1

Edition number

1

Pages from

41

Pages to

42

Pages count

2

URL

https://www.researchgate.net/publication/301822528_Geochemistry_of_Cenozoic_volcanic_rocks_of_the_Faroe_Islands_with_a_focus_on_their_ultratrace_contents_of_Hg

BibTex

@misc{BUT128671,
  author="ŠIŠKOVÁ, P. and KRMÍČEK, L. and COUFALÍK, P.",
  title="Geochemistry of Cenozoic volcanic rocks of the Faroe Islands with a focus on their ultra-trace contents of Hg",
  booktitle="Proceedings: Students in Polar and Alpine Research Conference 2016",
  year="2016",
  series="1",
  edition="1",
  pages="41--42",
  publisher="Masaryk University",
  address="Brno",
  doi="10.13140/RG.2.1.4920.9201",
  isbn="978-80-210-8203-8",
  url="https://www.researchgate.net/publication/301822528_Geochemistry_of_Cenozoic_volcanic_rocks_of_the_Faroe_Islands_with_a_focus_on_their_ultratrace_contents_of_Hg",
  note="abstract"
}