HAL: insu-00149308, version 1

DOI: 10.1016/j.orggeochem.2007.06.005

Detailed view

Export this paper BibTeX - EndNote - TEI - RefWorks -

Organic Geochemistry 38, 10 (2007) 1782-1788

New insights into the chemical composition of chitinozoans

Jérémy Jacob 1, Florentin Paris 2, Olivier Monod 3, Meller A. Miller 4, Peng Tang 2, Simon C. George 4, Jean-Michel Bény 3

(2007)

The chemical structure of isolated chitinozoan specimens extracted from Early Silurian marine rocks has been investigated by micro-FTIR, laser micro-Raman spectroscopy and laser micropyrolysis-gas chromatography/mass spectrometry (LmPy- GC/MS). The samples were subjected to relatively low thermal stress as attested by several indices. LmPy-GC/MS and micro-FTIR indicate that chitinozoans consist mostly of a kerogen network dominated by aromatic groups with a low contribution of aliphatics and oxygen- or nitrogen-bearing compounds. No chitin-related product was found in the pyrolysate of the chitinozoans, confirming previous findings on the occurrence of this biopolymer in the fossil record.

1:	Institut des Sciences de la Terre d'Orléans (ISTO)
	Université d'Orléans – CNRS : UMR6113 – Université François Rabelais - Tours – INSU
2:	Géosciences Rennes (GR)
	CNRS : UMR6118 – INSU – Centre Armoricain de Recherches en Environnement – Université de Rennes 1
3:	Institut des Sciences de la Terre d'Orléans (ISTO)
	CNRS : UMR6113 – INSU – Université d'Orléans
4:	Saudi Arabian Oil Company
	Oil Company

subject

:

Environmental Sciences/Global Changes Sciences of the Universe/Earth Sciences/Geochemistry

keyword(s): Chitinozoans – Laser micropyrolysis-GC/MS – chitin – Lower Palaeozoic

insu-00149308, version 1

http://hal-insu.archives-ouvertes.fr/insu-00149308

oai:hal-insu.archives-ouvertes.fr:insu-00149308

From: Nathalie Pothier <>

Submitted on: Friday, 25 May 2007 10:40:42

Updated on: Wednesday, 21 November 2007 10:21:27