Tag Archives: Arsia Mons

THEMIS: Flows on the caldera floor of Arsia Mons

Posted on January 2, 2018 by rburnham

THEMIS Image of the Day, January 2, 2018. This THEMIS image shows part of the caldera floor of Arsia Mons. It is not uncommon for calderas to have “flat” floors after the final explosive eruption the empties the subsurface magma … Continue reading →

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THEMIS: Arsia Mons’ collapse pits

Posted on January 1, 2018 by rburnham

THEMIS Image of the Day, January 1, 2018. This VIS image shows part of the northeastern flank of Arsia Mons at the summit caldera. In this region the summit caldera does not have a steep margin most likely due to … Continue reading →

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HRSC: Fracture swarms on Mars

Posted on November 16, 2017 by rburnham

These striking features on Mars were caused by the planet’s crust stretching apart in response to ancient volcanic activity. The fractures in the Sirenum Fossae region in the southern hemisphere were imaged by ESA’s Mars Express in March. They extend … Continue reading →

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Trace Gas Orbiter: Clouds over lava flows

Posted on October 16, 2017 by rburnham

Diffuse, water-ice clouds, a hazy sky and a light breeze. Such might have read a weather forecast for the Tharsis volcanic region on Mars on 22 November 2016, when this image was taken by the ExoMars Trace Gas Orbiter. Clouds, … Continue reading →

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HiRISE; Exposed bedrock, Koval’sky impact basin

Posted on June 28, 2017 by rburnham

This image shows partially exposed bedrock within the Koval’sky impact basin, which is on the outskirts of the extensive lava field of Daedalia Planum. Daedalia Planum is located southwest of Arsia Mons, which may be the source responsible for filling … Continue reading →

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THEMIS: Lava tube skylights in Daedalia Planum

Posted on May 19, 2017 by rburnham

THEMIS Image of the Day, May 19, 2017. Today’s VIS image show lava flows in Daedalia Planum that originated from Arsia Mons. At lower right, note the three circular “skylights” — places where the roof of an underground lava tube … Continue reading →

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Arsia Mons turned off its volcanic activity about 50 million years ago

Posted on March 20, 2017 by rburnham

New NASA research reveals that the giant Martian volcano Arsia Mons produced one new lava flow at its summit every 1 to 3 million years during the final peak of activity. The last volcanic activity there ceased about 50 million … Continue reading →

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THEMIS: Grazing light at sunrise on lava flows

Posted on January 26, 2017 by rburnham

THEMIS Image of the Day, January 26, 2017. The grazing light of sunrise, coming from the right, reveals edges and other details in lava flows of Daedalia Planum. These flows come from Arsia Mons volcano. A windstreak is visible at … Continue reading →

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HiRISE: Relatively dust-free lavas, Asia Mons

Posted on January 16, 2017 by rburnham

Relatively dust free lavas from Arsia Mons. Beautiful Mars series.

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THEMIS: Lava flow and crater, Daedalia Planum

Posted on September 26, 2016 by rburnham

THEMIS Image of the Day, September 26, 2016. Today’s VIS image shows a small portion of Daedalia Planum. Daedalia Planum was created by lava flows from Arsia Mons. More THEMIS Images of the Day by geological topic.

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