Informace o publikaci

Multi-proxy stratigraphic analysis of the Devonian-Carboniferous boundary sections in the Central, Western and Southern Europe: a pathway to the better interregional correlations

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KUMPAN Tomáš BÁBEK Ondřej KALVODA Jiří FRÝDA Jiří

Rok publikování 2013
Druh Článek v odborném periodiku
Časopis / Zdroj Document de l'Institut Scientifique, Rabat
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
Obor Geologie a mineralogie
Klíčová slova Famennian;Tournaisian;stratigraphy;petrophysics;element geochemistry;isotope geochemistry
Popis The current state of the Devonian-Carboniferous (D-C) boundary definition is a subject of wide criticzm. Based on the gamma-ray spectrometry, magnetic susceptibility, stable carbon isotope and element (EDXRF) geochemistry were carried out correlations between the most important D-C boundary sections in the Europe. Positive shift of the carbon isotopes, decrease of the Th/U (paleo-redox proxy for lowering of the oxygenation) and consequent increase of the gamma-ray and magnetic susceptibility signal just bellow the D-C boundary are the most distinct correlatable patterns between the majority of the studied sections. Using of the quantitative multi-instrumental methods bring objective correlation and upgrade the former biostratigraphic correlations.
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