Tag Archives: Ascraeus Mons

THEMIS: Pit chains and craters on Ascraeus Mons

THEMIS Image of the Day, November 7, 2018. The linear features in this VIS image are located on part of the large flow feature on the southern flank of Ascraeus Mons. The features most likely formed by collapse of the … Continue reading

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

HiRISE: A caldera’s steep slopes

This image shows part of the steep wall of the caldera (a large volcanic crater) at the top of Ascraeus Mons, one of Mars’ giant volcanoes. We can see chutes carved into the soft dust that has built up on … Continue reading

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

Olympus Mons and Ascraeus Mons: Geologically recent lava inflation

The summit of Olympus Mons displays lava flows, some of which are truncated by the caldera, that appear to have flowed uphill. Because lava flows downhill, this mismatch between the flow direction and present-day topography suggests that the terrain has … Continue reading

Posted in Reports | Tagged , , , | Comments Off

THEMIS: Pits and channels on Ascraeus Mons

THEMIS Image of the Day, August 28, 2018. This VIS image shows a portion of the northern flank of Ascreaus Mons. Multiple linear depressions cut across the surface lava flows, having formed after the surface in this region. The chains … Continue reading

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

THEMIS: Impact crater on volcanic plains

THEMIS Image of the Day, August 23, 2018. This VIS image shows an unnamed crater located northeast of Ascraeus Mons, on the volcanic plains of the Tharsis region. The rim has several concentric ridges. There are multiple layers of ejecta, … Continue reading

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

Mars Express: From horizon to horizon

Fifteen years ago, ESA’s Mars Express was launched to investigate the Red Planet. To mark this milestone comes a striking view of Mars from horizon to horizon, showcasing one of the most intriguing parts of the martian surface. On 2 … Continue reading

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

THEMIS: Secondary caldera atop Ascraeus Mons

THEMIS Image of the Day, September 8, 2017. This image shows part of the complex caldera at the summit of the volcano. Calderas are found at the tops of volcanoes and are the source region for magma that rises from … Continue reading

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

THEMIS: Collapse rings in Ascraeus Mons caldera

THEMIS Image of the Day, September 7, 2017. This image shows the eastern part of the complex caldera at the summit of the volcano. Calderas are found at the tops of volcanoes and are the source region for magma that … Continue reading

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

THEMIS: Ring-fault tectonics at Ascraeus Mons caldera

THEMIS Image of the Day, September 6, 2017. This image shows part of the complex caldera at the summit of the volcano. Calderas are found at the tops of volcanoes and are the source region for magma that rises from … Continue reading

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

THEMIS: Collapse features on flank of Ascraeus Mons

THEMIS Image of the Day, September 5, 2017. This image shows part of the northeastern flank of Ascraeus Mons, along the trend that joins the three large Tharsis volcanoes. The image has a myriad of collapse features from circular to … Continue reading

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