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Carbon speciation in organic fossils using 2D to 3D x-ray Raman multispectral imaging

Authors: Rafaella Georgiou; Pierre Gueriau; Christoph J. Sahle; Sylvain Bernard; Alessandro Mirone; Romain Garrouste; Uwe Bergmann; +2 Authors

Carbon speciation in organic fossils using 2D to 3D x-ray Raman multispectral imaging

Abstract

The in situ two-dimensional (2D) and 3D imaging of the chemical speciation of organic fossils is an unsolved problem in paleontology and cultural heritage. Here, we use x-ray Raman scattering (XRS)–based imaging at the carbon K-edge to form 2D and 3D images of the carbon chemistry in two exceptionally preserved specimens, a fossil plant dating back from the Carboniferous and an ancient insect entrapped in 53-million-year-old amber. The 2D XRS imaging of the plant fossil reveals a homogeneous chemical composition with micrometric “pockets” of preservation, likely inherited from its geological history. The 3D XRS imaging of the insect cuticle displays an exceptionally well preserved remaining chemical signature typical of polysaccharides such as chitin around a largely hollowed-out inclusion. Our results open up new perspectives for in situ chemical speciation imaging of fossilized organic materials, with the potential to enhance our understanding of organic specimens and their paleobiology.

X-ray Raman multispectral imaging identifies the 3D chemistry of carbon in entire organic paleontological specimens.

Country
France
Subjects by Vocabulary

Microsoft Academic Graph classification: In situ Chemical composition symbols medicine.medical_specialty Mineralogy chemistry.chemical_element symbols.namesake Carboniferous medicine Paleobiology Spectral imaging chemistry Inclusion (mineral) Raman spectroscopy Carbon

Keywords

Insecta, Chitin, [SHS.MUSEO]Humanities and Social Sciences/Cultural heritage and museology, Spectrum Analysis, Raman, Raman, Research Articles, [PHYS]Physics [physics], Multidisciplinary, Fossils, SciAdv r-articles, [CHIM.MATE]Chemical Sciences/Material chemistry, Plants, Ant, [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology, Research Article, Materials Science, X-ray, Imaging, Three-Dimensional, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Polysaccharides, Animals, Ants, Paleontology, Amber, Applied Sciences and Engineering, [SDU]Sciences of the Universe [physics], Spectral imaging, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], Insect

  • BIP!
    Impact byBIP!
    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    31
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    31
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
    Powered byBIP!BIP!
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Found an issue? Give us feedback
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
31
Top 10%
Average
Top 10%
Funded by
EC| E-RIHS PP
Project
E-RIHS PP
The European Research Infrastructure for Heritage Science Preparatory Phase
  • Funder: European Commission (EC)
  • Project Code: 739503
  • Funding stream: H2020 | CSA
,
EC| IPERION CH
Project
IPERION CH
Integrated Platform for the European Research Infrastructure ON Cultural Heritage
  • Funder: European Commission (EC)
  • Project Code: 654028
  • Funding stream: H2020 | RIA
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