Évolution thermique des séries sédimentaires de la Marge ardéchoise : étude pétrographique de la matière organique et des argilesThermal evolution of the sedimentary series of the Ardèche Margin: petrological studies of organic matter and clays |
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| Authors: | Luis Martinez Joëlle Duplay Isabel Suarez-Ruiz Jean Robert Disnar Geneviève Farjanel Philippe Larqué Nicole Liewig |
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| Institution: | 1. G2R–CREGU, UMR 7566, UHP, bd des Aiguillettes, 54500 Vandoeuvre-lès-Nancy, France;2. CGS, EOST, 1, rue Blessig, 67084 Strasbourg cedex, France;3. INCAR, CSIC, La corredoria s/n, Apartado 73, 33080 Oviedo, Espagne;4. ISTO, bât. Géosciences, université d''Orléans, BP 6759, 45067 Orléans cedex 2, France;5. BRGM, av. de Concyr, BP 6009, 45060 Orléans, France |
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| Abstract: | Two wells, Balazuc (BA1) and Morte-Mérie (MM1), located in a confined area (1200 m apart) and separated by the Uzer fault (a Liassic structure with a dip fault of 1300 m) were analysed using conventional methodologies and techniques (PRV, TAI, XRD, STEM) in order to compare the diagenetic evolution of clays and organic matter. The thermal convective process allows the circulation of hot fluids and the oxidation of organic matter. The conductive process allows the maturation of the organic matter, the expulsion of hydrocarbons and the deposit of pyrobitumes in the migration channels. To cite this article: L. Martinez et al., C. R. Geoscience 334 (2002) 1021–1028. |
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| Keywords: | organic matter clays diagenesis Ardèche Margin France matière organique argiles diagenèse Marge ardéchoise France Géomatériaux Pétrologie Geomaterials Petrology |
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