Tag Archives: volcanics

THEMIS: Cracked slabs of lava in Tempe Terra

Posted on June 20, 2017 by rburnham

THEMIS Image of the Day, June 20, 2017. Do you see what I see? Is that a praying mantis looking at me? (THEMIS Art #129) More THEMIS Images of the Day by geological topic.  

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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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HiRISE: A volcanic fissure

Posted on April 26, 2017 by rburnham

Although Mars is known for having the largest volcano in our Solar System, Olympus Mons, we also find small-scale volcanic features on its surface. This fissure, less than 500 meters across at its widest point, lies in the Tharsis region … Continue reading →

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HiRISE: It shrinks! It cracks!

Posted on April 20, 2017 by rburnham

Given enough time, impact craters on Mars tend to fill up with different materials. For instance, some craters on Mars had lakes inside them in the past. When these lakes dried out, they left behind traces of their past existence, … Continue reading →

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THEMIS: Flows upon flows in Daedalia Planum

Posted on April 13, 2017 by rburnham

THEMIS Image of the Day, April 13, 2017. Today’s false color image shows a small portion of Daedalia Planum. This part of Mars is built up from countless interwoven lava flows that have spilled from the giant volcanos of Tharsis … Continue reading →

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HiRISE: Cratered cones and ridges in Isidis Planitia

Posted on April 3, 2017 by rburnham

Cratered cones and ridges in Isidis Planitia. Beautiful Mars series.

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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: Tapestry of once-molten rock

Posted on March 1, 2017 by rburnham

THEMIS Image of the Day, March 1, 2017. This VIS image shows a portion of Daedalia Planum, an extensive volcanic plain comprised of flows from Arsia Mons. Different flow surface textures help delineate different flows. (This image was taken shortly … Continue reading →

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Mars’ mantle more Earth-like than Moon-like

Posted on February 27, 2017 by rburnham

Mars’ mantle may be more complicated than previously thought. In a new study published [February 24] in the Nature-affiliated journal Scientific Reports, researchers at Louisiana State University document geochemical changes over time in the lava flows of Elysium, a major … Continue reading →

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Two billion years’ volcanism recorded from a single Mars meteorite ejection site

Posted on February 3, 2017 by rburnham

Analysis of a Martian meteorite found in Africa in 2012 has uncovered evidence of at least 2 billion years of volcanic activity on Mars. This confirms that some of the longest-lived volcanoes in the solar system may be found on … Continue reading →

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