Tag Archives: groundwater

THEMIS: Crosscross tectonics in Lycus Sulci

Posted on August 14, 2018 by rburnham

THEMIS Image of the Day, August 14, 2018. Lycus Sulci is a very complex region surrounding the northern and western flanks of Olympus Mons. This VIS image shows some of the tectonic features found in Lycus Sulci as well as … Continue reading →

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THEMIS: Complex feature in Hephaestus Fossae

Posted on August 8, 2018 by rburnham

THEMIS Image of the Day, August 8, 2018. This VIS image is located at the eastern end of Hephaestus Fossae. Hephaestus Fossae is a channel system in Utopia Planitia near Elysium Mons. It has been proposed that the channel formed … Continue reading →

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THEMIS: Fault-edged blocks of Sacra Fossae

Posted on August 2, 2018 by rburnham

THEMIS Image of the Day, August 2, 2018. The right angle intersections in this VIS image are some of the graben that form Sacra Fossae. The fossae are located on the margin of Lunae Planum near the beginning of Kasei … Continue reading →

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THEMIS: Aram Chaos’ crumbling mesas

Posted on June 27, 2018 by rburnham

THEMIS Image of the Day, June 27, 2018. In this VIS image of part of Aram Chaos, the surface region is being dissected by linear valleys. As the dissection continues individual mesas will develop, creating the terrain termed chaotic. The … Continue reading →

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THEMIS: Collapsing ground in Margaritifer Chaos

Posted on June 26, 2018 by rburnham

THEMIS Image of the Day, June 26, 2018. Today’s VIS image shows a small section on Margaritifer Chaos. The term chaos is applied to regions where the surface is being eroded to form mesas. As the surface processes continue individual … Continue reading →

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THEMIS: Youngish crater in Utopia Planitia

Posted on May 17, 2018 by rburnham

THEMIS Image of the Day, May 17, 2018. This VIS image shows an unnamed crater located in Utopia Planitia. This relatively young crater has a steep inner rim, with floor deposits that originate from the crater rim itself. As craters … Continue reading →

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THEMIS: Blast zone at Lonar Crater

Posted on May 7, 2018 by rburnham

THEMIS Image of the Day, May 7, 2018. This VIS image shows the part of the crater rim and ejecta surrounding Lonar Crater in the northern plains of Vastitas Borealis. There is a fine scale, radial grooved outer layer of … Continue reading →

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THEMIS: Yuty Crater ejecta

Posted on March 26, 2018 by rburnham

THEMIS Image of the Day, March 26, 2018. Off the image to the right is Yuty Crater, located between Simud and Tiu Valles. The crater ejcta forms the large lobes along the right side of this VIS image. This type … Continue reading →

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HiRISE: Ridges near Nirgal Valles

Posted on March 7, 2018 by rburnham

In this observation, we see a set of straight ridges in ancient bedrock near Nirgal Valles. The patterns indicate fractures from tectonic stresses, but how have they been hardened to now stand in positive relief after billions of years of … Continue reading →

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HiRISE: Icy layers in craters

Posted on February 19, 2018 by rburnham

Scientists now realize that ice is very common on the Martian surface. It often fills up craters and valleys in the mid-latitudes in older climates, although when it’s covered in dust it can be hard to recognize. Today the climate … Continue reading →

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