Emplacement of Martian rampart crater deposits
نویسندگان
چکیده
منابع مشابه
Role of Volatiles in the Emplacement of Ejecta Deposits around Martian Impact Craters
Introduction: Impact craters are a dominant geological landform on Mars, the most Earth-like planet in the Solar System. The martian impact cratering record is more diverse than for Earth and the other terrestrial planets [e.g., 1]. Of particular interest is the presence of multiple layers of lobate or fluidized proximal ejecta deposits surrounding martian impact craters. These are collectively...
متن کاملRampart craters on Ganymede: Their implications for fluidized ejecta emplacement
Some fresh impact craters on Ganymede have the overall ejecta morphology similar to Martian double-layer ejecta (DLE), with the exception of the crater Nergal that is most like Martian single layer ejecta (SLE) craters (as is the terrestrial crater Lonar). Similar craters also have been identified on Europa, but no outer ejecta layer has been found on these craters. The morphometry of these cra...
متن کاملCrater population and resurfacing of the Martian north polar layered deposits
[1] Present‐day accumulation in the north polar layered deposits (NPLD) is thought to occur via deposition on the north polar residual cap. Understanding current mass balance in relation to current climate would provide insight into the climatic record of the NPLD. To constrain processes and rates of NPLD resurfacing, a search for craters was conducted using images from the Mars Reconnaissance ...
متن کاملPreliminary Assessment of the Morphometry of Martian Impact Crater Ejecta Deposits and their Implications,
We are continuing characterization of the geometry of flow-related features of the fluidized ejecta of fresh Martian craters to be used in concert with dynamical models of granular flow as a basis for developing new models and testing current models of fluidized ejecta emplacement. Granular flow studies have shown great promise for understanding the causes of ejecta flow on Mars [1, 2] because ...
متن کاملShape, rheology and emplacement times of small martian shield volcanoes
a Observatoire Midi-Pyrénées, Laboratoire Dynamique Terrestre et Planétaire, UMR 5562, Université Paul Sabatier, Toulouse, France b Laboratoire de Planétologie et Géodynamique, Nantes University, UMR CNRS 6612, Nantes, France c School of Earth and Space Exploration, Arizona State University, Box 871404, Tempe, AZ, USA d Institut de Physique du Globe de Paris Equipe Géophysique Spatiale et Plané...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2005
ISSN: 0148-0227
DOI: 10.1029/2004je002338