Results 131 to 140 of about 58,092 (174)
Planetary and Space Science, 2011 International audienceFlat-floored depressions with scalloped-shapes and spatially associated small-sized polygons (diameter < similar to 100 m) dot the landscape of western Utopia Planitia (centered at 45 degrees N-95 degrees E).
Alexander Fedorov +2 more
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Basement controls on the scale of giant polygons in Utopia Planitia, Mars [PDF]
Journal of Geophysical Research E: Planets, 2011 We investigate the role of buried basement topography in controlling the scale of the giant polygons of Utopia Planitia (49°N, 233°W), Mars. Thermal Emission Imaging System (THEMIS) Infrared Daytime image mosaics reveal ∼6 km average spacing of polygon troughs along selected basin‐radial transects.
Michele L. Cooke
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Geological characteristics of China's Tianwen-1 landing site at Utopia Planitia, Mars
Icarus, 2021Abstract China's first Mars mission Tianwen-1 successfully touched down the surface of the southern Utopia Planitia on 15th May 2021. In this study we investigate the geological characteristics of the target landing site (Site 1) and a backup landing site (Site 2) on Utopia Planitia for Tianwen-1 Mission.
Xing Wu, Chaolin Zhang
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SHARAD detection and characterization of subsurface water ice deposits in Utopia Planitia, Mars [PDF]
Geophysical Research Letters, 2016 AbstractMorphological analyses of Utopia Planitia, Mars, have led to the hypothesis that the region contains a substantial amount of near‐surface ice. This paper tests this hypothesis using ground‐penetrating radar techniques. We have identified an expansive radar reflective region spanning approximately 375,000 km2 in SHAllow RADar (SHARAD) data over ...
Bruce Campbell +2 more
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Co-evolution of polygonal and scalloped terrains, southwestern Utopia Planitia, Mars
Earth and Planetary Science Letters, 2014Abstract Thermal contraction crack polygons and scalloped depressions, two of the most common landforms found in Utopia Planitia, Mars, have previously been linked to the presence of ice-rich deposits in the subsurface. Although the formation and evolution of these features individually are relatively well understood, little to no effort has been ...
Pierre Dutilleul, G R Osiński
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Possible pingos and a periglacial landscape in northwest Utopia Planitia
Icarus, 2005Hydrostatic (closed-system) pingos are small, elongate to circular, ice-cored mounds that are perennial features of some periglacial landscapes. The growth and development of hydrostatic pingos is contingent upon the presence of surface water, freezing processes and of deep, continuous, ice-cemented permafrost.
Richard J. Soare +2 more
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Rift zone volcanism and associated cinder cone field in Utopia Planitia, Mars [PDF]
Journal of Geophysical Research E: Planets, 2010 We analyzed a small cone field in SW Utopia Planitia that shows striking similarities to volcanic rift zones on Earth. This is of particular interest as the study area lies off any of the volcanic centers of Mars in the northern hemisphere lowlands and is surrounded by material of the Amazonian aged Vastitas Borealis Formation (VBF).
Gerhard Neukum
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Evidence of an eolian ice-rich and stratified permafrost in Utopia Planitia, Mars
Planetary and Space Science, 2012Abstract 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.
Séjourné, A. +4 more
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Intra-crater glacial processes in central Utopia Planitia, Mars
Icarus, 2011Abstract We describe and interpret a series of previously unidentified glacial-like lobes (34–43°N; 107–125°E) that were discovered as part of a survey of large ( D > 5 km) impact craters in Utopia Planitia, one of the great northern plains of Mars. The lobes have characteristics that are consistent with a glacial origin.
Geoffrey Pearce +2 more
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Geological History of the Dichotomy in the Southern Utopia Planitia of Mars
Journal of Geophysical Research: PlanetsAbstractThe Martian crustal dichotomy represents a fundamental geological boundary, separating the ancient Noachian highlands in the south from the relatively younger lowlands to the north, which may host sediments derived from a putative northern ocean.
Tengfei Zhang +7 more
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