David Baratoux

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[1] This paper focuses on the spectral characteristics of lobate ejecta across Syrtis Major volcano, a dark region of Mars presenting a mafic composition as revealed from the Observatoire pour la Minéralogie, l’Eau, les Glaces et l’Activité (OMEGA) instrument. Two spectrally distinct crater types are identified. Type I is enriched in high-calcium pyroxene(More)
[1] Recent gullies on Mars are suspected to be the result of liquid‐water‐bearing flows. A formation from wet flows has been challenged by studies invoking granular (dry) flows. Our study focuses on the sinuous shapes observed for some of the recent Martian gullies. Sinuous gullies are found in locations and slopes (of 10°–15°) similar to straight gullies,(More)
HRSC/ MARS EXPRESS INTEGRATED MULTI-ORBIT DATASET: IMPLICATION ON HAPKE PARAMETERS DETERMINATION. A. Jehl, P. C. Pinet, A. Cord, Y.D. Daydou, D. Baratoux, S.C. Chevrel, N. Manaud, R. Greeley, M.A. Kreslavsky, J. Raitala, H. Hoffmann, K. Gwinner, F. Scholten, T. Roatsch, R. Jaumann, G. Neukum, and The Mars Express HRSC Co-Investigator Team. UMR 5562 / CNRS /(More)
Building on previous studies of volcanoes around the Hellas basin with new studies of imaging (High-Resolution Stereo Camera (HRSC), Thermal Emission Imaging System (THEMIS), Mars Orbiter Camera (MOC), High-Resolution Imaging Science Experiment (HiRISE), Context Imager (CTX)), multispectral (HRSC, Observatoire pour la Minéralogie, l’Eau, les Glaces et(More)
Stable isotope ratios of H, C, and O are powerful indicators of a wide variety of planetary geophysical processes, and for Mars they reveal the record of loss of its atmosphere and subsequent interactions with its surface such as carbonate formation. We report in situ measurements of the isotopic ratios of D/H and (18)O/(16)O in water and (13)C/(12)C,(More)
Reconstruction of the geological history of Mars has been the focus of considerable attention over the past four decades, with important discoveries being made about variations in surface conditions. However, despite a significant increase in the amount of data related to the morphology, mineralogy and chemistry of the martian surface, there is no clear(More)
COUNTERPART. A. Gendrin, J.-P. Bibring, J. Mustard, L. Kanner, N. Mangold, B. Gondet, Y. Langevin, F. Poulet, D. Baratoux, C. Sotin, S. Le Mouelic, IAS, bâtiment 121, 91405 Orsay Campus, France (aline.gendrin@ias.fr), IDES, 91405 Orsay Campus, France, Department of Geological Science, Brown University, Providence RI, 02912, USA, Observatoire Midi-Pyrénées,(More)
[1] Textural and compositional analyses using Chemistry Camera (ChemCam) remote microimager and laser-induced breakdown spectroscopy (LIBS) have been performed on five float rocks and coarse gravels along the first 100 m of the Curiosity traverse at Bradbury Rise. ChemCam, the first LIBS instrument sent to another planet, offers the opportunity to assess(More)
lou, B. Reynard, J.-M. Malézieux, J. Dejax, E. Heggy, P. Rochette, W. U. Reimold, P. Michel and D. Baratoux, Observatoire de Bordeaux, UMR 5804, 2 rue de l’Observatoire, 33270 Floirac, France (paillou@obs.u-bordeaux1.fr), ENS, Lyon, France, MNHN, Paris, France, LPI, Houston TX 77058, CEREGE, Aix en Provence, France, Humboldt University, Berlin, Germany,(More)