1. Characterization of hydrated silicate-bearing outcrops in Tyrrhena Terra, Mars: Implications to the alteration history of Mars

    Icarus 219(1):476 (2012)

    Highlights ► Tyrrhena Terra Region of Mars studied with orbital datasets. ► Numerous detections of phyllosilicates and zeolites associated to impact craters. ► Mineralogy and geomorphology indicate exhumation of pre-impact altered rocks. ► Mineralogy points to regional low-gr...
  2. A re-interpretation of the recent stratigraphical history of Utopia Planitia, Mars: Implications for late-Amazonian periglacial and ice-rich terrain

    Planetary and Space Science 60(1):131 (2012)

    Utopia Planitia, one of the great northern plains of the Mars, is a region where landscape modification by cold-climate processes, i.e. glacial and periglacial, is thought to be widespread. In the middle latitudes of this region a metres-thick mantle, possibly comprising an ice-dust admixtu...
  3. Evidence of an eolian ice-rich and stratified permafrost in Utopia Planitia, Mars

    Planetary and Space Science 60(1):248 (2012)

    Western Utopia Planitia (UP) is dotted with scalloped depressions, small-sized polygons and pingo-like mounds. Within the planetary science community, there seems to be a general agreement that these relatively recent landscape features are indicative of an ice-rich permafrost. However, que...
  4. Scalloped depressions and small-sized polygons in western Utopia Planitia, Mars: A new formation hypothesis

    Planetary and Space Science 59(5):412 (2011)

    Flat-floored depressions with scalloped-shapes and spatially associated small-sized polygons (diameter <∼100 m) dot the landscape of western Utopia Planitia (centered at 45°N–95°E). The scalloped depressions are thought to be the result of ice-rich regolith undergoing degradation by s...
  5. The Aristarchus Plateau on the Moon: Mineralogical and structural study from integrated Clementine UV–Vis–NIR spectral data

    Icarus 199(1):9 (2009)

    Combining UVVIS and NIR Clementine spectral data, we characterize the mineralogy of the different volcanic and crustal materials occurring on the Aristarchus Plateau and its close vicinity, in order to investigate their stratigraphic relationships and understand the nature of the crust in t...
  6. Contribution of Mars Odyssey GRS at Central Elysium Planitia

    Icarus 200(1):19 (2009)

    The neutron signals measured by the Neutron Spectrometer on board the Mars Odyssey satellite are analyzed at Central Elysium Planitia. The neutron currents have variations associated with the boundaries of geological units in all three energy ranges: thermal, epithermal and fast neutron. Ge...
  7. Identification of a new outflow channel on Mars in Syrtis Major Planum using HRSC/MEx data

    Planetary and Space Science 56(7):1030 (2008)

    Syrtis Major Planum is a volcanic plain dominated by lava flows. High resolution stereo camera (HRSC) images of the northern Syrtis Major region display erosional features such as grooves, teardrop-shaped islands and valleys. These landforms are characteristics of outflow channels seen on M...
  8. Thermokarst processes and the origin of crater-rim gullies in Utopia and western Elysium Planitia

    Icarus 191(1):95 (2007)

    We have identified a number of gullies that could be aqueous in origin near or at the rim of several impact craters in Utopia Planitia and western Elysium Planitia (30.0°–59.0° N; 241.0°–291.0° W). Based on the sharpness of their incisions and the general absence of superposed craters, we a...
  9. MEP (Mars Environment Package): toward a package for studying environmental conditions at the surface of Mars from future lander/rover missions

    Advances in Space Research 34(8):1702 (2004)

    In view to prepare Mars human exploration, it is necessary to promote and lead, at the international level, a highly interdisciplinary program, involving specialists of geochemistry, geophysics, atmospheric science, space weather, and biology. The goal of this program will be to elaborate c...
  10. MEP (Mars Environment Package): toward a package for studying environmental conditions at the surface of Mars from future lander/rover missions.

    Advances in Space Research 34(8):1702 (2004) PMID 15934176

    In view to prepare Mars human exploration, it is necessary to promote and lead, at the international level, a highly interdisciplinary program, involving specialists of geochemistry, geophysics, atmospheric science, space weather, and biology. The goal of this program will be to elaborate concep...
  11. MEP (Mars Environment Package): toward a package for studying environmental conditions at the surface of Mars from future lander/rover missions.

    Advances in Space Research 34(8):1702 (2004) PMID 15934176

    In view to prepare Mars human exploration, it is necessary to promote and lead, at the international level, a highly interdisciplinary program, involving specialists of geochemistry, geophysics, atmospheric science, space weather, and biology. The goal of this program will be to elaborate concep...
  12. Formation of recent martian debris flows by melting of near-surface ground ice at high obliquity.

    Science 295(5552):110 (2002) PMID 11729267

    The observation of small gullies associated with recent surface runoff on Mars has renewed the question of liquid water stability at the surface of Mars. The gullies could be formed by groundwater seepage from underground aquifers; however, observations of gullies originating from isolated peaks...
  13. Formation of recent martian debris flows by melting of near-surface ground ice at high obliquity.

    Science 295(5552):110 (2002) PMID 11729267

    The observation of small gullies associated with recent surface runoff on Mars has renewed the question of liquid water stability at the surface of Mars. The gullies could be formed by groundwater seepage from underground aquifers; however, observations of gullies originating from isolated peaks...
  14. On Water Detection in the Martian Subsurface Using Sounding Radar

    Icarus 154(2):244 (2001)

    Several radar experiments are planned to map the martian subsurface down to several kilometers, searching for subsurface liquid water reservoirs, using different concepts and techniques, all based on the penetration property of radio frequency waves in arid soils. The penetration depth of l...
  15. The GPR experiment on NETLANDER

    Planetary and Space Science 48(12):1161 (2000)

    With the regular access of landers to the surface at each launch window during the next decade, one of the major objectives of the exploration of Mars will be to unravel the many unknown in the geological and hydrological history of the planet. Among the presently planned missions, the NETL...
  16. Le pergélisol martien:Martian permafrost

    International Journal of Refrigeration 16(2):91 (1993)

    Les basses tempe´ratures à la surface de Mars autorisent le maintien d'un pergélisol sur l'ensemble de la planète. Mais la faible pression atmosphérique complique les caractéristiques de ce sol gelé. Théoriquement, seules les latitudes supe´rieuresa`40°N permettent le maintien de la glace h...