Tag Archives: fluvial erosion

THEMIS: Naktong Vallis in Terra Sabaea

Posted on August 29, 2019 by rburnham

THEMIS Image of the Day, August 29, 2019. Today’s VIS image shows a section of Naktong Vallis. Naktong Vallis is located in Terra Sabaea. Explore more THEMIS Images of the Day by geological subject.

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Evidence for fluvial deposition in Arabia Terra

Posted on July 24, 2019 by rburnham

[Editor’s note: From a paper by Joel Davis and six co-authors recently published in the Journal of Geophysical Research.] A Diverse Array of Fluvial Depositional Systems in Arabia Terra: Evidence for mid‐Noachian to Early Hesperian Rivers on Mars • Fluvial … Continue reading →

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The evolution of Endeavour Crater

Posted on June 6, 2019 by rburnham

[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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HiRISE: Terrain near Idaeus Fossae

Posted on May 22, 2019 by rburnham

Terrain near Idaeus Fossae. Many valleys occur all over Mars that reveal an extensive ancient history of liquid water erosion. While these valley systems are typically now covered with fine soils and sand dunes, the overall scale and shape of … Continue reading →

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Rivers raged on Mars late into its history

Posted on April 1, 2019 by rburnham

Long ago on Mars, water carved deep riverbeds into the planet’s surface — but we still don’t know what kind of weather fed them. Scientists aren’t sure, because their understanding of the Martian climate billions of years ago remains incomplete. … Continue reading →

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THEMIS: Galle Crater floor features

Posted on December 5, 2018 by rburnham

THEMIS Image of the Day, December 5, 2018. This VIS image shows a small portion of the floor of Galle Crater. This large crater is located on the eastern side of Argyre Planitia. The floor of Galle Crater contains many … Continue reading →

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THEMIS: Rolling down into Argyre Planitia

Posted on November 27, 2018 by rburnham

THEMIS Image of the Day, November 27, 2018. Today’s VIS image shows several small channels. These channels are along the break in topography, that leads down into Argyre Planitia. Argyre Planitia and Hellas Planitia are deep basins in the southern … Continue reading →

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THEMIS: Merging stream channels in Xanthe Terra

Posted on June 18, 2018 by rburnham

THEMIS Image of the Day, June 18, 2018. Today’s VIS image shows an unnamed channel in Xanthe Terra. The large bend in the channel was created as the flow of liquid from the bottom of the image was deflected by … Continue reading →

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Inverted terrain shows ancient stream-flow details

Posted on September 18, 2017 by rburnham

River deposits exist across the surface of Mars and record a surface environment from over 3.5 billion years ago that was able to support liquid water at the surface. A region of Mars named Aeolis Dorsa contains some of the … Continue reading →

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HiRISE: Cataracts in Kasei Valles

Posted on August 8, 2017 by rburnham

Obviously these are not the kind of cataracts that can develop in the lenses of your eyes, but large erosional scallops that form in river channels, like the Niagara Falls draining the Great Lakes of North America. Cataracts are large … Continue reading →

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