In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge
The study of very ancient microfossils has recently raised contentious issues regarding interpretation of the biogenicity of the structures. In situ investigation of certain elements such as sulfur within potential microfossils is a powerful complement to other methods of investigation that can prov...
Published in: | Organic Geochemistry |
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Online Access: | https://hal.science/hal-00291544 https://doi.org/10.1016/j.orggeochem.2007.10.008 |
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ftunivorleans:oai:HAL:hal-00291544v1 2024-09-15T18:38:25+00:00 In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge Lemelle, Laurence Labrot, P. Salomé, Murielle Simionovici, Alexandre Viso, Michel Westall, Francès Laboratoire de Sciences de la Terre (LST) École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre de biophysique moléculaire (CBM) Université d'Orléans (UO)-Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) European Synchrotron Radiation Facility (ESRF) Laboratoire de Géophysique Interne et Tectonophysique (LGIT) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Central des Ponts et Chaussées (LCPC)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/hal-00291544 https://doi.org/10.1016/j.orggeochem.2007.10.008 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.orggeochem.2007.10.008 hal-00291544 https://hal.science/hal-00291544 doi:10.1016/j.orggeochem.2007.10.008 ISSN: 0146-6380 Organic Geochemistry https://hal.science/hal-00291544 Organic Geochemistry, 2008, 39 (2), pp.188. ⟨10.1016/j.orggeochem.2007.10.008⟩ Sulfur XANES X-rays fluorescence microfossils synchrotron exobiology biogeology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2008 ftunivorleans https://doi.org/10.1016/j.orggeochem.2007.10.008 2024-07-01T23:44:19Z The study of very ancient microfossils has recently raised contentious issues regarding interpretation of the biogenicity of the structures. In situ investigation of certain elements such as sulfur within potential microfossils is a powerful complement to other methods of investigation that can provide valuable information on biogenicity. We present here a first such study on Precambrian microfossils from the 700–800-My-old Neoproterozoic Draken Formation, Svalbard, using scanning X-ray microscopy (SXM) in the fluorescence mode and X-ray absorption near edge spectroscopy (XANES) at the sulfur K-edge. SXM allowed mapping of up to 300 ppm of probably endogenous sulfur within the kerogenous walls of Myxococcoides chlorelloidea microfossils. XANES showed that the sulfur is most likely contained in heterocyclic organic compounds, such as thiophene(s). Article in Journal/Newspaper Svalbard Université d'Orléans: HAL Organic Geochemistry 39 2 188 202 |
institution |
Open Polar |
collection |
Université d'Orléans: HAL |
op_collection_id |
ftunivorleans |
language |
English |
topic |
Sulfur XANES X-rays fluorescence microfossils synchrotron exobiology biogeology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
Sulfur XANES X-rays fluorescence microfossils synchrotron exobiology biogeology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Lemelle, Laurence Labrot, P. Salomé, Murielle Simionovici, Alexandre Viso, Michel Westall, Francès In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge |
topic_facet |
Sulfur XANES X-rays fluorescence microfossils synchrotron exobiology biogeology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
The study of very ancient microfossils has recently raised contentious issues regarding interpretation of the biogenicity of the structures. In situ investigation of certain elements such as sulfur within potential microfossils is a powerful complement to other methods of investigation that can provide valuable information on biogenicity. We present here a first such study on Precambrian microfossils from the 700–800-My-old Neoproterozoic Draken Formation, Svalbard, using scanning X-ray microscopy (SXM) in the fluorescence mode and X-ray absorption near edge spectroscopy (XANES) at the sulfur K-edge. SXM allowed mapping of up to 300 ppm of probably endogenous sulfur within the kerogenous walls of Myxococcoides chlorelloidea microfossils. XANES showed that the sulfur is most likely contained in heterocyclic organic compounds, such as thiophene(s). |
author2 |
Laboratoire de Sciences de la Terre (LST) École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Centre de biophysique moléculaire (CBM) Université d'Orléans (UO)-Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) European Synchrotron Radiation Facility (ESRF) Laboratoire de Géophysique Interne et Tectonophysique (LGIT) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Central des Ponts et Chaussées (LCPC)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Lemelle, Laurence Labrot, P. Salomé, Murielle Simionovici, Alexandre Viso, Michel Westall, Francès |
author_facet |
Lemelle, Laurence Labrot, P. Salomé, Murielle Simionovici, Alexandre Viso, Michel Westall, Francès |
author_sort |
Lemelle, Laurence |
title |
In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge |
title_short |
In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge |
title_full |
In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge |
title_fullStr |
In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge |
title_full_unstemmed |
In situ imaging of organic sulphur in 800 My-old neoproterozoic microfossils by x-ray spectromicroscopy at the S K-edge |
title_sort |
in situ imaging of organic sulphur in 800 my-old neoproterozoic microfossils by x-ray spectromicroscopy at the s k-edge |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00291544 https://doi.org/10.1016/j.orggeochem.2007.10.008 |
genre |
Svalbard |
genre_facet |
Svalbard |
op_source |
ISSN: 0146-6380 Organic Geochemistry https://hal.science/hal-00291544 Organic Geochemistry, 2008, 39 (2), pp.188. ⟨10.1016/j.orggeochem.2007.10.008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.orggeochem.2007.10.008 hal-00291544 https://hal.science/hal-00291544 doi:10.1016/j.orggeochem.2007.10.008 |
op_doi |
https://doi.org/10.1016/j.orggeochem.2007.10.008 |
container_title |
Organic Geochemistry |
container_volume |
39 |
container_issue |
2 |
container_start_page |
188 |
op_container_end_page |
202 |
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1810482820161732608 |