References of "Beghin, Jérémie"
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See detailEarly eukaryotes: insights from microanalyses of proterozoic microfossils
Cornet, Yohan ULiege; Beghin, Jérémie ULiege; Kabamba Baludikay, Blaise ULiege et al

in Goldschmidt Abstracts, 2017 (2017, August)

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See detailA palaeoecological model for the late Mesoproterozoic–early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa
Beghin, Jérémie ULiege; Guilbaud, Romain; Poulton, Simon W. et al

in Precambrian Research (2017), 299

Reconstructing the spatial distribution of early eukaryotes in palaeoenvironments through Proterozoic sedimentary basins provides important information about their palaeoecology and taphonomic conditions ... [more ▼]

Reconstructing the spatial distribution of early eukaryotes in palaeoenvironments through Proterozoic sedimentary basins provides important information about their palaeoecology and taphonomic conditions. Here, we combine the geological context and a reconstruction of palaeoenvironmental redox conditions (using iron speciation) with quantitative analysis of microfossil assemblages (eukaryotes andincertae sedis), to provide the first palaeoecological model for the Atar/El Mreïti Group of the Taoudeni Basin. Our model suggests that in the late Mesoproterozoic–early Neoproterozoic, the availability of both molecular oxygen and nutrients controlled eukaryotic diversity, higher in oxic shallow marginal marine environments, while coccoidal colonies and benthic microbial mats dominated respectively in anoxic iron-rich and euxinic waters during marine highstands or away from shore where eukaryotes are lower or absent. [less ▲]

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See detailMicrofossils from the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa
Beghin, Jérémie ULiege; Storme, Jean-Yves; Blanpied, Christian et al

in Precambrian Research (2017), 291

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See detailPLANET TOPERS: Planets, Tracing the Transfer, Origin, Preservation, and Evolution of their ReservoirS
Dehant, Véronique ULiege; Kabamba Baludikay, Blaise ULiege; Beghin, Jérémie ULiege et al

in Origins of Life & Evolution of the Biosphere (2016), DOI 10.1007/s11084-016-9488

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See detailMicroanalyzes of remarkable microfossils of the Late Mesoproterozoic–Early Neoproterozoic
Cornet, Yohan ULiege; Beghin, Jérémie ULiege; Kabamba Baludikay, Blaise ULiege et al

in European Geosciences Union General Assembly 2016 Vienna, Austria, 2016 (2016)

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See detailTowards a palaeoecological model of the Mesoproterozoic Taoudeni basin
Beghin, Jérémie ULiege; Poulton, Simon; Gueneli, Nur et al

Conference (2015)

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See detailBIODIVERSITY AND REDOX CONDITIONS THROUGH THE PROTEROZOIC TAOUDENI BASIN OF MAURITANIA
Beghin, Jérémie ULiege; Poulton, Simon; Gueneli, Nur et al

Scientific conference (2014, November 03)

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See detailBIODIVERSITY AND REDOX CONDITIONS THROUGH THE PROTEROZOIC TAOUDENI BASIN OF MAURITANIA
Beghin, Jérémie ULiege; Poulton, Simon; Gueneli, Nur et al

Conference (2014, September)

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See detailMicrofossils’ diversity from the Proterozoic Taoudeni Basin, Mauritania
Beghin, Jérémie ULiege; Javaux, Emmanuelle ULiege; Houzay, Jean-Pierre et al

in European Geosciences Union General Assembly 2014 Vienna, Austria, 27 April – 02 May 2014 (abstract book) (2014, April 27)

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See detailHolocene dust record in a NW European peat bog: A multiproxy approach
Allan, Mohammed ULiege; Le Roux, Gael; Verheyden, Sophie et al

Conference (2013, August 28)

Dust deposition in southern Belgium is estimated from the geochemical signature of an ombrotrophic bog. The analyses of Rare Earth Elements (REE) and lithogenic element concentrations as well as Nd ... [more ▼]

Dust deposition in southern Belgium is estimated from the geochemical signature of an ombrotrophic bog. The analyses of Rare Earth Elements (REE) and lithogenic element concentrations as well as Nd isotopes were performed by HR-ICP-MS and MC-ICP-MS respectively, in a  6 m peat section representing 5300 years, from 30 BC to 5300 BC dated by the 14C method. REE concentration variations in peat samples were used as a dust proxy and the Nd isotopes to trace the sources. Peat humification and testate amoebae were used to evaluate hydroclimatic conditions. The range of dust deposition varied from 0.03 to 4 g m-2 yr-1. The highest dust fluxes were observed from 800 to 600 BC, and from 3200 to 2800 BC and correspond to cold periods. The Nd values show large variability, between -5 and –13, identifying three major sources of dust: local soils, distal volcanic and desert particles. By comparing our results with the dust recorded in other peat bogs and ice cores from different latitudes, we evidence that the Misten peat is a valid archive for dust deposition. [less ▲]

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See detailThe « boring billion » : an exciting time for early eukaryotes !
Javaux, Emmanuelle ULiege; Beghin, Jérémie ULiege; Houzay, JP et al

Conference (2013, August)

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See detailMid and late Holocene dust deposition in Western Europe: The Misten peat bog (Hautes Fagnes - Belgium)
Allan, Mohammed ULiege; Beghin, Jérémie ULiege; Le Roux, Gael et al

in Climate of the Past (2013), 9(2889-2928,),

Dust deposition in southern Belgium is estimated from the geochemical signature of an ombrotrophic peatland. The Rare Earth Elements (REE) and lithogenic elements concentrations, as well as Nd isotopes ... [more ▼]

Dust deposition in southern Belgium is estimated from the geochemical signature of an ombrotrophic peatland. The Rare Earth Elements (REE) and lithogenic elements concentrations, as well as Nd isotopes, were determined by HR-ICP-MS and MC-ICP-MS respectively, along a  6 m peat section covering 5300 years, from 2000 to 7300 cal.BP dated by the 14C method. Changes in REE concentration in the peat correlate with those of Ti, Al, Sc and Zr that are lithogenic conservative elements, suggesting that REE are immobile in the studied peat bogs and can be used as tracers of dust deposition. Peat humification and testate amoebae were used to evaluate hydroclimatic conditions. The range of dust deposition varied from 0.03 to 4.0 g m-2 yr-1. The highest dust fluxes were observed from 2750 to 2550 cal.BP and from 5150 to 4750 cal.BP and correspond to cold periods. The Nd values show a large variability from -13 to –5, identifying three major sources of dusts: local soils, distal volcanic and desert particles. [less ▲]

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See detailA climate model from 200 AD to 1200 AD for the Hautes-Fagnes plateau (East Belgium) : based on pollen grains, testate amoebae, and humification analyses
Beghin, Jérémie ULiege; Fagel, Nathalie ULiege; Gerrienne, Philippe ULiege et al

Poster (2012, September 12)

Several peat cores were extracted from the Misten bog, on the Hautes-Fagnes plateau (East Belgium). Analyses of pollen grains, testate amoebae and the degree of peat humification have been standardised ... [more ▼]

Several peat cores were extracted from the Misten bog, on the Hautes-Fagnes plateau (East Belgium). Analyses of pollen grains, testate amoebae and the degree of peat humification have been standardised and combined into a palaeo-hydro-climatic model from 200 AD to 1200 AD. The reconstruction shows 9 distinctive phases of near-surface water tables, which may be used to infer changes in the atmospheric water balance of eastern Belgium during the Subatlantic stage. [less ▲]

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