Detailed Information on Publication Record
2014
Sea-level and environmental changes around the Devonian–Carboniferous boundary in the Namur–Dinant Basin (S Belgium, NE France): A multi-proxy stratigraphic analysis of carbonate ramp archives and its use in regional and interregional correlations
KUMPAN, Tomáš, Ondřej BÁBEK, Jiří KALVODA, Tomáš MATYS GRYGAR, Jiří FRÝDA et. al.Basic information
Original name
Sea-level and environmental changes around the Devonian–Carboniferous boundary in the Namur–Dinant Basin (S Belgium, NE France): A multi-proxy stratigraphic analysis of carbonate ramp archives and its use in regional and interregional correlations
Authors
KUMPAN, Tomáš (203 Czech Republic, guarantor, belonging to the institution), Ondřej BÁBEK (203 Czech Republic, belonging to the institution), Jiří KALVODA (203 Czech Republic, belonging to the institution), Tomáš MATYS GRYGAR (203 Czech Republic) and Jiří FRÝDA (203 Czech Republic)
Edition
Sedimentary Geology, Elsevier Science, 2014, 0037-0738
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10500 1.5. Earth and related environmental sciences
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.665
RIV identification code
RIV/00216224:14310/14:00073782
Organization unit
Faculty of Science
UT WoS
000341675000003
Keywords in English
Hangenberg event; Sequence stratigraphy; Foraminifer biostratigraphy; Gamma-ray spectrometry; Element geochemistry; Carbon isotope chemostratigraphy
Tags
International impact, Reviewed
Změněno: 13/3/2018 13:20, Mgr. Tomáš Kumpan, Ph.D.
Abstract
V originále
The paper focuses on high-resolution multidisciplinary research on three Devonian–Carboniferous boundary sections in shallow-water carbonate rocks in the Namur–Dinant Basin (Belgium, France). The aim of the study is to provide palaeo-environmental reconstructions and correlations supported by several independent quantitative proxies. We describe several correlative horizons and provide their sequence-stratigraphic interpretation based on facies analysis, spectral gamma-ray data, element concentrations (XRF) and d13Ccarb, with foraminifer-biostratigraphy age control. The most prominent surface is a basal surface of forced regression, which is indicated by a sharp basinwards facies shift and a drop in clay-gamma-ray values and Al concentrations at the base of the Hastiere and Avesnelles formations in more distal settings. In proximal settings, this surface merges with a hiatus at the Devonian–Carboniferous boundary inferred from foraminifer biostratigraphy. This hiatus can be correlated with the global Hangenberg sandstone event, which indicates a glacioeustatic sea-level fall. Increasing values of Zr/Al, K/Al, Sr/Al and Mn/Al coincide with the proximal facies of the falling stage system tract and lowstand system tract in the Hastiere and Avesnelles formations as a consequence of the enhanced input of siliciclastics and nutrients during low sea levels. The top of the middle Hastiere member is interpreted as the maximum regression surface, which is overlain by transgressive system tract of the upper Hastiere member. The patterns of gamma-ray, d13Ccarb, Th/K, Al and Zr/Al curves are well correlated between the studied sections. The d13Ccarb excursions are correlated with the unnamed excursion in the Upper expansa conodont zone (Carnic Alps) and with the global Hangenberg event s.l. excursion in the kockeli conodont zone. This sequence-stratigraphic framework is used for correlations with deltaic successions from the Tafilalt Basin, Morocco. The basal surface of the forced regression equivalent to the Hangenberg sandstone event, which is typical for deeper-water settings, is easily recognisable and correlatable with gaps in more-shallow water settings. We suggest that it should be taken into account as a possible candidate for the “natural solution” of the Devonian–Carboniferous boundary in discussions concerning its redefinition.
Links
GAP210/11/1891, research and development project |
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