Tag Archives: volcanos

Olympus Mons: slumps make terraces & scarps

Scientists from the Division of Planetary Sciences and Remote Sensing in the Institute of Geological Sciences at Freie Universität Berlin have succeeded in creating a model simulating the formation of mysterious structures on the surface of the Mars volcano, Olympus … Continue reading

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

Mineral clues to subglacial volcanos in Sisyphi Montes

Volcanoes erupted beneath an ice sheet on Mars billions of years ago, far from any ice sheet on the Red Planet today, new evidence from NASA’s Mars Reconnaissance Orbiter suggests. The research about these volcanoes helps show there was extensive … Continue reading

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

THEMIS: Ceraunius Tholus

THEMIS Image of the Day, March 6, 2014. Multiple channels dissect the northern flank of Ceraunius Tholus in this VIS image. More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , , , , , , , | Comments Off

HiRISE: Small volcano

Beautiful Mars series: Small volcano to the southwest of Tombaugh Crater. More Beautiful Mars images.

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

THEMIS image: Olympus Mons summit caldera

THEMIS Image of the Day, February 19, 2014. This VIS image shows the central portion of the complex caldera at the summit of Olympus Mons. More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , , , , , | Comments Off

THEMIS image: Olympus Mons summit

THEMIS Image of the Day, February 18, 2014. Today’s VIS image shows the eastern portion of the complex caldera at the summit of Olympus Mons. More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , , , , , | Comments Off

Supervolcanos in Arabia on Mars: Update

The idea of giant volcanos erupting in Arabia was proposed by Joseph Michalski (Planetary Science Institute) in a talk at the Lunar and Planetary Science Conference in March 2013. Michalski and coauthor Jacob Bleacher (NASA Goddard Space Flight Center) have … Continue reading

Posted in Reports | Tagged , , , , , , , , , , , , , | Comments Off

Does Arabia show a new style of Martian volcanism?

Arabia is one of the largest and oldest regions of Mars. Among its varied rocks are widespread deposits of soft and easily eroded ones which may have a volcanic origin. However, Arabia has no obvious volcanic vents or sources.

Posted in Reports | Tagged , , , , , , , , , , , | Comments Off

Explosive eruptions in dense ancient atmospheres

Explosive volcanic eruptions on an earlier Mars with a thicker atmosphere would have scattered fine ash (pyroclastic debris) mainly east or west of the volcano, a new study finds. Also, a denser ancient atmosphere supports the addition of Arsia and … Continue reading

Posted in Reports | Tagged , , , , , , , | Comments Off

Mars’ explosive childhood

Mars is widely understood to be a volcanic planet — its surface shows abundant evidence of volcanic activity, both ancient and more recent. Spacecraft detect lava flows in many locations, and spectroscopic evidence of volcanic rocks lies almost everywhere. The … Continue reading

Posted in Reports | Tagged , , , , , , , , , | 1 Comment