Tag Archives: alluvial fans

HiRISE: Alluvial fan in Murray Crater

Alluvial fan in Murray Crater. Alluvial fans are among the strongest lines of evidence that liquid water once flowed on the surface of Mars. Beautiful Mars series. [More at links]

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HiRISE: Alluvial fans in NE Mojave Crater

Alluvial fans in northeastern Mojave Crater. Mojave Crater is a perennial favorite of ours for the clear signs of these alluvial fans that might indicate it once rained on Mars a very long time ago. Beautiful Mars series. [More at links]

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Stepped fans and phyllosilicates on Mars

Planetary Geomorphology Image of the Month, April 1, 2018: Peter Grindrod (Natural History Museum, London, UK). A number of different studies have catalogued features on Mars that could be given the general heading of sedimentary fans… These features occur whenever … Continue reading

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HiRISE: Big fans

Alluvial fans are fan-shaped deposits emerging from regions of steep topography. Alluvial fans on Mars are thought to be ancient and record past episodes of flowing water. This image shows part of one of those fans, which has been eroded. … Continue reading

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HiRISE: Fresh shallow valleys and fans in north Arabia Terra

Fresh shallow valleys and fans in north Arabia Terra. Beautiful Mars series.

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THEMIS: Possible delta in Ius Chasma?

THEMIS Image of the Day, February 26, 2018. This VIS image shows part of eastern Ius Chasma. The lower elevations of Geryon Montes are located at the top of the image. Between the montes and the southern wall face is … Continue reading

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HiRISE: Stratified fan material in Baltisk Crater

Stratified fan material in Baltisk Crater. Beautiful Mars series.

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HiRISE: A sneak peek into Saheki’s secret layers

Saheki Crater is large, about 84 kilometers across, and located in the Southern highlands of Mars, to the north of Hellas Planitia. It’s filled with beautiful alluvial fans that formed when water (likely melting snow) carried fine material, such as … Continue reading

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THEMIS: Peace Vallis alluvial fan in Gale Crater

THEMIS Image of the Day, December 22, 2016. Today’s false color image shows part of Gale Crater. Gale Crater is the home of the Curiosity Rover. The channel descending from the rim rocks at top is called Peace Vallis, and a … Continue reading

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Karun Valles & its braided alluvial fan

Planetary Geomorphology Image of the Month, September 29, 2016: Solmaz Adeli (DLR, Institute of Planetary Research, Berlin). The Amazonian period on Mars, meaning roughly the last 3 Ga, is globally believed to have been cold and hyperarid [e.g., Marchant and … Continue reading

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