Characterisation of the organic matter of upper Bedoulian and lower Gargasian strata in the historical stratotypes (Apt and Cassis-la-Bédoule areas, SE France) - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Carnets de Géologie / Notebooks on Geology Année : 2008

Characterisation of the organic matter of upper Bedoulian and lower Gargasian strata in the historical stratotypes (Apt and Cassis-la-Bédoule areas, SE France)

Résumé

The Total Organic Carbon (TOC) content of the Gargasian strata studied in their historical stratotype area is rather low (0.3% on average). Only a few levels show TOC values approaching 1.2%. This small amount of preserved organic matter, associated with low hydrogen index values (10 to 115 mg hydrocarbons/g TOC), argues for deposition in fully oxic conditions. This organic content is a mixture of land-derived organic particles and deeply oxidized marine organic matter. The organic flux was strongly diluted by the autochthonous carbonate input.
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Dates et versions

hal-00235954 , version 1 (04-02-2008)

Identifiants

  • HAL Id : hal-00235954 , version 1

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François Baudin, Michel Moullade, Guy Tronchetti. Characterisation of the organic matter of upper Bedoulian and lower Gargasian strata in the historical stratotypes (Apt and Cassis-la-Bédoule areas, SE France). Carnets de Géologie / Notebooks on Geology, 2008, CG2008 (L01), pp.1-9. ⟨hal-00235954⟩
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