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Tag Archives: erosion
Wind erosion of Mars rocks doesn’t release methane
Wind erosion has been ruled out as the primary cause of methane gas release on Mars, Newcastle University academics have shown. Methane can be produced over time through both geological and biological routes and since its first detection in the … Continue reading
HiRISE: The erosional window
The erosional window. Layers are windows to the past. This observation will help measure layer thicknesses and layer orientations in this deep erosional window into Niesten Crater. This window appears to be deeper than others in this crater. HiRISE Picture … Continue reading
Posted in Reports
Tagged erosion, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, layered deposits, Mars Reconnaissance Orbiter, MRO, NASA, Niesten Crater, University of Arizona
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HiRISE: Abstract art in Ius Chasma
Sometimes Mars’ surface is just beautiful as seen through the eyes of HiRISE. This is one example on the floor of Ius Chasma, part of Valles Marineris. The region has had a complex history of sediment deposition, deformation, erosion, and … Continue reading
Posted in Reports
Tagged bedrock, deformation, erosion, High Resolution Imaging Science Experiment, HiRISE, Ius Chasma, Mars Reconnaissance Orbiter, MRO, NASA, sedimentary deposits, University of Arizona, Valles Marineris
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HiRISE: Layered history
The geologic history of a planet is written in its layers. Erosion of the surface reveals several shades of light toned layers, likely sedimentary deposits. The most recent geologic features are the narrow sand dunes snaking across the top of … Continue reading
Posted in Reports
Tagged erosion, High Resolution Imaging Science Experiment, HiRISE, layers, Mars Reconnaissance Orbiter, MRO, NASA, sedimentary deposits, University of Arizona
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Highland landscapes point to long evolution by low-intensity intermittent erosion
[Editor’s note: From a paper by Jon Cawley and Ross Irwin recently published in the Journal of Geophysical Research.] Evolution of Escarpments, Pediments, and Plains in the Noachian Highlands of Mars • Debris-mantled escarpments, regolith pediments, sloping aggradational surfaces, and … Continue reading
Posted in Reports
Tagged erosion, escarpments, Libya Montes, Noachis Terra, pediments, plains, Southern Highlands, Terra Cimmeria
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HiRISE: Majestic slopes of Hebes Chasma
Majestic slopes of Hebes Chasma. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Beautiful Mars, erosion, Hebes Chasma, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: The inevitability of erosion
The inevitability of erosion. Crater-fill deposits in Tempe Terra. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, erosion, erosional remnants, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, Tempe Terra, University of Arizona
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How hard did it rain on Mars?
Heavy rain on Mars reshaped the planet’s impact craters and carved out river-like channels in its surface billions of years ago, according to a new study published in Icarus. In the paper, researchers from the Smithsonian Institution and the Johns … Continue reading
THEMIS: Flat-top ridge erodes to spurs & gullies
THEMIS Image of the Day, March 23, 2017. Today’s false color image shows part of Coprates Chasma, where a flat-topped ridge is eroding from both sides into blade-like terrain with spur-and-gully topography. The THEMIS VIS camera contains 5 filters. The … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Coprates Chasma, erosion, Mars Odyssey, mass wasting, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Valles Marineris
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HiRISE: Scars of erosion
This large crescent dune in Kaiser Crater shows the scars of many types of seasonal erosional activities. Along its downwind slope are large gullies which are active during winter, when frost drives dune material downslope, carving out channels and creating … Continue reading
Posted in Reports
Tagged dust devil tracks, erosion, gullies, High Resolution Imaging Science Experiment, HiRISE, Kaiser Crater, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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