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Tag Archives: wind erosion
THEMIS: Wind-blown debris in channel
THEMIS Image of the Day, September 2, 2019. Several named and unnamed channels are located south of the Medusae Fossae Formation on the margin with Terra Sirenum. One of the unnamed channels is visible in the lower half of this … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, channels, Mars Odyssey, Medusae Fossae Formation, NASA, Terra Sirenum, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion, yardangs
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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
Are scarps on Mars oriented by wind erosion?
[Editor’s note: From a paper by Joshua Williams and three co-authors recently published in Icarus.] Scarp orientation in regions of active aeolian erosion on Mars • Scarps were analyzed in two regions of active aeolian erosion on Mars. • No … Continue reading
Posted in Reports
Tagged eolian processes, escarpments, Gale Crater, Jezero Crater, scarps, wind erosion
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THEMIS: Wind-etched ground near Gordii Dorsum
THEMIS Image of the Day, July 16, 2019. Wind is one of the remaining active processes altering the surface of Mars. In regions of long term unidirectional winds, the dust and sand is winnowed away. In places with poorly cemented … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Gordii Dorsum, Mars Odyssey, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion
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THEMIS: Wind-etched sediments in Gordii Dorsum
THEMIS Image of the Day, July 10, 2019. The most common active process affecting the surface of Mars today is erosion by the wind. In areas of poorly cemented surface materials, the effect is more easily seen. This image near … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Gordii Dorsum, linear ridges, Mars Odyssey, NASA, sediments, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion, yardangs
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HiRISE: Rhythmic layers east of Medusae Fossae
The surface of this image looks wavy, like that of the sea. These wave shapes are the result of erosion: the removal of material, which has been ongoing for millions, if not billions, of years. This erosion is likely performed … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, layered deposits, Mars Reconnaissance Orbiter, Medusae Fossae, MRO, NASA, University of Arizona, wind erosion
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The evolution of Endeavour Crater
[Editor’s note: From a paper by Madison Hughes and five co-authors recently published in the Journal of Geophysical Research.] Degradation of Endeavour Crater Based on Orbital and Rover‐Based Observations in Combination With Landscape Evolution Modeling • Landscape evolution modeling indicates … Continue reading
Posted in Reports
Tagged Bopolu Crater, Burns Formation, Cape Byron, Cape Dromedary, Cape Tribulation, crater lakes, Endeavour Crater, fluvial erosion, Grasberg Formation, Marathon Valley, Mars Exploration Rover, MER, NASA, Opportunity, Perseverance Valley, wind erosion
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THEMIS: Chasma Boreale in false color
THEMIS Image of the Day, February 25, 2019. This false color image is located near the head of Chasma Boreale, a large trough in the north polar cap. The floor of the trough is mostly ice free. The linear features … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Chasma Boreale, false color, Mars Odyssey, NASA, north polar ice cap, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion
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THEMIS: Yardangs in Candor Chasma
THEMIS Image of the Day, January 22, 2019. This VIS image shows part of the eastern end of Candor Chasma. The upper edge of the canyon is at the bottom of the image. The slopes of the chasma are eroded … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Candor Chasma, Mars Odyssey, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion, yardangs
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HiRISE: Layered deposits in northern mid-latitudes
Layered deposits in the northern mid-latitudes. The objective of this observation is to examine layered features in an irregularly shaped depression and a nearby crater. Some researchers have suggested that the shape of mounds in large craters may be due … Continue reading
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mounds, MRO, NASA, University of Arizona, Utopia Planitia, wind erosion
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