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A palaeoecological model for the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa

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A palaeoecological model for the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa. / Beghin, Jérémie; Guilbaud, Romain; Poulton, Simon W. et al.
In: Precambrian Research, Vol. 299, 09.2017, p. 1-14.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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APA

Beghin, J., Guilbaud, R., Poulton, S. W., Gueneli, N., Brocks, J. J., Storme, J-Y., Blanpied, C., & Javaux, E. J. (2017). A palaeoecological model for the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa. Precambrian Research, 299, 1-14. https://doi.org/10.1016/j.precamres.2017.07.016

Vancouver

Beghin J, Guilbaud R, Poulton SW, Gueneli N, Brocks JJ, Storme J-Y et al. A palaeoecological model for the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa. Precambrian Research. 2017 Sept;299:1-14. Epub 2017 Jul 19. doi: 10.1016/j.precamres.2017.07.016

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Bibtex

@article{4aecfa13c9f0412893f2cd6e535ccf0d,
title = "A palaeoecological model for the late Mesoproterozoic – early Neoproterozoic Atar/El Mre{\"i}ti Group, Taoudeni Basin, Mauritania, northwestern Africa",
abstract = "Reconstructing the spatial distribution of early eukaryotes in palaeoenvironments through Proterozoic sedimentary basins provides important information about their palaeocology 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 and incertae sedis), to provide the first palaeoecological model for the Atar/El Mre{\"i}ti 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.",
keywords = "Palaeoeredox conditions, Iron speciation, Early eukaryotes, Palaeoecology",
author = "J{\'e}r{\'e}mie Beghin and Romain Guilbaud and Poulton, {Simon W.} and Nur Gueneli and Brocks, {Jochen J.} and Jean-Yves Storme and Christian Blanpied and Javaux, {Emmanuelle J.}",
year = "2017",
month = sep,
doi = "10.1016/j.precamres.2017.07.016",
language = "English",
volume = "299",
pages = "1--14",
journal = "Precambrian Research",
issn = "0301-9268",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - A palaeoecological model for the late Mesoproterozoic – early Neoproterozoic Atar/El Mreïti Group, Taoudeni Basin, Mauritania, northwestern Africa

AU - Beghin, Jérémie

AU - Guilbaud, Romain

AU - Poulton, Simon W.

AU - Gueneli, Nur

AU - Brocks, Jochen J.

AU - Storme, Jean-Yves

AU - Blanpied, Christian

AU - Javaux, Emmanuelle J.

PY - 2017/9

Y1 - 2017/9

N2 - Reconstructing the spatial distribution of early eukaryotes in palaeoenvironments through Proterozoic sedimentary basins provides important information about their palaeocology 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 and incertae 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.

AB - Reconstructing the spatial distribution of early eukaryotes in palaeoenvironments through Proterozoic sedimentary basins provides important information about their palaeocology 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 and incertae 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.

KW - Palaeoeredox conditions

KW - Iron speciation

KW - Early eukaryotes

KW - Palaeoecology

U2 - 10.1016/j.precamres.2017.07.016

DO - 10.1016/j.precamres.2017.07.016

M3 - Journal article

VL - 299

SP - 1

EP - 14

JO - Precambrian Research

JF - Precambrian Research

SN - 0301-9268

ER -