Publication details

Element chemostratigraphy of the Devonian/Carboniferous boundary – A compositional approach

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Authors

FAČEVICOVÁ Kamila BÁBEK Ondřej HRON Karel KUMPAN Tomáš

Year of publication 2016
Type Article in Periodical
Magazine / Source Applied Geochemistry
MU Faculty or unit

Faculty of Science

Citation
web Science direct
Doi http://dx.doi.org/10.1016/j.apgeochem.2016.10.002
Field Geochemistry
Keywords Element geochemistry; Compositional biplot; Dendrogram; Logratio coordinates; Devonian/Carboniferous boundary; Variation matrix
Description Geochemical signature of the Devonian/Carboniferous boundary was analyzed using standard and compositional approaches. • Outputs of principal component analysis were compared for raw, log-transformed and clr transformed geochemical data. • Q-mode clustering extracted predicative logratio coordinates – balances to reveal differences between shale layers. • Standard and compositional approaches have shown synergic effects. • It seems advisable to use both absolute and relative information to discern predominant and subtle geochemichal trends.
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