Abstract : Due to its particular mode of growth, the coral skeleton provides a natural model for evaluating the successive stages of diagenesis in a still-living organism. The spatial distribution of skeletal organic matrices and their early diagenesis have been investigated in a scleractinian skeleton with in situ micron-scale analyses by Raman Microspectroscopy. Results indicate that the decay of the organic matrices occurs within a few years. We suggest that the gradual deterioration of the skeletal organic matrices is a keymechanism driving earliest diagenesis in coral skeletons and represents the starting-point of the process of fossilization.
https://hal-mnhn.archives-ouvertes.fr/mnhn-00491167
Contributeur : Christine Perrin
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Soumis le : jeudi 10 juin 2010 - 17:19:43
Dernière modification le : jeudi 22 novembre 2018 - 14:06:59
Christine Perrin, David Smith. Decay of skeletal organic matrices and early diagenesis in coral skeletons. Comptes Rendus Palevol, Elsevier Masson, 2007, 6, pp.253-260. 〈10.1016/j.crpv.2007.02.003〉. 〈mnhn-00491167〉
