Multi-proxy stratigraphic analysis of the Devonian-Carboniferous boundary sections in the Central, Western and Southern Europe: a pathway to the better interregional correlations
| Authors | |
|---|---|
| Year of publication | 2013 |
| Type | Article in Periodical |
| Magazine / Source | Document de l'Institut Scientifique, Rabat |
| MU Faculty or unit | |
| Citation | |
| Field | Geology and mineralogy |
| Keywords | Famennian;Tournaisian;stratigraphy;petrophysics;element geochemistry;isotope geochemistry |
| Description | 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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