Commentaire à la note intitulée Synergie entre la télédétection multispectrale et les données de terrain pour la conception d'un nouveau modèle géodynamique d'ouverture du bassin paléozoïque des Jebilet centrales (Maroc), de A. El Harti et al. [C. R. Geoscience 336 (2004) 1311–1320]     

Abderrahim Essaifi  Jean-Louis Lagarde  Ramon Capdevila 《Comptes Rendus Geoscience》2006,338(5):386-388

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Were the 2.1-Gyr fossil colonial organisms discovered in the Francevillian basin (Palaeoproterozoic,Gabon) buried by turbidites?     

Olivier Parize  Jean-Louis Feybesse  François Guillocheau  Thierry Mulder 《Comptes Rendus Geoscience》2013,345(2):101-110

The Francevillian series (Gabon) in which the Earth's oldest large colonial organisms were recently discovered (El Albani et al., 2010) were deposited 2 Gyr ago. These series are usually interpreted as a fining-upward basin-fill sequence composed by five superimposed lithological terms noted FA to FE. New studies initiated by AREVA, allowed new data to be collected on the southwestern edge of the Francevillian basin, particularly on newly excavated outcrops. Facies interpretations show that the Poubara sandstones and associated shales and black shales (upper part of FB,FB2a), correspond to turbidites deposited on an upper slope rather than one a shelf, submitted to tidal currents or storm wave action. These new interpretations based on facies association, sedimentary geometries, and basin evolution show that the depositional environment could be a turbidite lobe set at a palaeobathymetry deeper than 200 m.  相似文献   

On some early attempts to determine the variation of the magnetic force with distance     

Mickaël Mussard  Jean-Louis Le Mouël  Jean-Paul Poirier 《Comptes Rendus Geoscience》2013,345(5-6):225-229

We describe two experiments made by the 18th-century physicists Francis Hauksbee and Pieter van Musschenbroek, designed to find the dependence of the magnetic force on distance. From the experimental results, given in the form of tables, the authors did not infer any simple law. We calculated the values obtained by assuming that the force varies as the inverse square of the distance and found a good agreement with their results. It therefore appears that these remarkable experiments could have provided an experimental proof of the law.  相似文献