Multi-proxy stratigraphic analysis of the Devonian-Carboniferous boundary sections in the Central, Western and Southern Europe: a pathway to the better interregional correlations
| Autoři | |
|---|---|
| Rok publikování | 2013 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Document de l'Institut Scientifique, Rabat |
| Fakulta / Pracoviště MU | |
| 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. |
| Související projekty: |