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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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