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S2S Guyane
Presentation
This project is dedicated to apply the source-to-sink methodology to the cratonic context of the Guiana shield area and its atlantic margin, by characterizing the transient sediment storage, identifying the vertical motion markers and their amplitude, characterize the sedimentary architectures and quantify sediment accumulation to provide a mass balance and conclude on their geodynamic causes.
- The evolution of the source erosion is mapped through low-T thermochronology data acquisition and modeling. (U/Th – He) dating on Iron Oxydes documents chemical erosion pattern and timing, associated to geomorphological assessment of erosionnal surfaces repartitions.
- The sink response have been extensively studied by seismic profiles analysis offshore Guyana-Surinam and French Guiana.
- The overall paleogeographic and geodynamic framework was built through compilation maps from Permian to Miocene times.
View results presented by Dr. Delphine Rouby, Dr. Cécile Gautheron and Dr. Flora Bajolet.
© C Fillon
© BRGM – J-Y Roig
Our team
S2S Guyana shield
Scientific coordinators
- Sylvain Calassou (Total, project leader)
- Jean Yves Roig (BRGM, project leader and co-supervisor)
- Delphine Rouby (Uni. Toulouse, scientific coordinator and supervisor)
- Massimo D’all Asta (Total, scientific coordinator and co-supervisor)
- Cécile Gautheron (Uni. Paris-Saclay, scientific coordinator and supervisor)
- Charlotte Fillon (Total, scientific coordinator)
Researchers involved
- Delphine Rouby (Uni. Toulouse, scientific coordinator and supervisor)
- Cécile Gautheron (Uni. Paris-Saclay, scientific coordinator and supervisor)
- Dominique Chardon (Uni. Toulouse, co-supervisor)
- Jocelyn Barbarand (Uni. Paris-Saclay, Supervisor)
- Fabien Paquet (BRGM, co-supervisor)
- Renaud Coueffé (BRGM, co-supervisor)
- Jean Yves Roig (BRGM, project leader and co-supervisor)
- Massimo D’all Asta (Total, scientific coordinator and co-supervisor)
PhDs and Post-docs
- Artiom Loparev (Uni. Toulouse)
- Flora Bajolet (Uni. Toulouse)
- Caroline Sanchez (Uni. Paris-Saclay)
- Sebastien Ternois (Uni. Paris-Saclay)
© BRGM – J-Y Roig
Publications
PhD Thesis: Géométries crustales, évolution paléogéographique et histoire de l’accumulation terrigène des bassins de la marge passive du Craton Guyanais.
PhD Thesis: Géométries crustales, évolution paléogéographique et histoire de l’accumulation terrigène des bassins de la marge passive du Craton Guyanais.
Artiom Loparev. Géométries crustales, évolution paléogéographique et histoire de l’accumulation terrigène des bassins de la marge passive du Craton Guyanais. Université Toulouse 3 Paul Sabatier, 2020
keywords: rifting diachrone, marge passive, bilan d’accumulation terrigène, érosion cratonique, paléo-géographie, géodynamique