Tag Archives: graben

THEMIS: Pavonis Mons flank meets volcanic plains

Posted on July 4, 2018 by rburnham

THEMIS Image of the Day, July 4, 2018. Today’s VIS image is of the eastern flank of Pavonis Mons where the volcano meets the surrounding volcanic plains. The arced features towards the top of the image are fractures and lava … Continue reading →

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

THEMIS: Cerberus Fossae, source of floods

Posted on May 22, 2018 by rburnham

THEMIS Image of the Day, May 22, 2018. Today’s VIS image shows a section of Cerberus Fossae. Located southeast of the Elysium Planitia volcanic complex, the linear graben was created by tectonic forces related to the volcanic activity. The fossa … Continue reading →

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

THEMIS: Lava flows chopped by graben in Olympica Fossae

Posted on May 21, 2018 by rburnham

THEMIS Image of the Day, May 21, 2018. The linear channel in the bottom half of this VIS image is part of Olympica Fossae. Olympica Fossae is a complex channel form located on the Tharsis plains between Alba Mons and … Continue reading →

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

THEMIS: Volcanic fissure in Labeatis Fossae

Posted on May 8, 2018 by rburnham

THEMIS Image of the Day, May 8, 2018. The feature that crosses this VIS image is a graben. Graben are formed by tectonic action, where a block of material moves downward between a pair of faults. The northern part of … Continue reading →

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

THEMIS: Big blocky faults in Sacra Fossae

Posted on April 19, 2018 by rburnham

THEMIS Image of the Day, April 19, 2018. Located on the western margin of Lunae Planum, Sacra Fossae is a group of linear depressions. The right angle turns and uniform width seen in this VIS image indicate that these channels … Continue reading →

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

THEMIS: Channels cutting across channels in Olympica Fossae

Posted on April 12, 2018 by rburnham

THEMIS Image of the Day, April 12, 2018. Olympica Fossae is a complex channel located on the volcanic plains between Alba Mons and Olympus Mons. The sinuosity of the large channel in the middle of the image indicates that this … Continue reading →

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

HiRISE: The exposed exterior of a modified crater in Tantalus Fossae

Posted on March 22, 2018 by rburnham

The exposed exterior of a modified crater in Tantalus Fossae. Many craters in this area have been extensively modified, but few are sitting on the edge of a graben like this. This position exposes parts of the crater exterior and … Continue reading →

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

HiRISE: A sample of Phlegethon Catena

Posted on February 28, 2018 by rburnham

A sample of Phlegethon Catena. This area is full of graben, which are depressions that often run parallel to faults. Beautiful Mars series.

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

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 →

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

THEMIS: Lava tube takes a sharp turn

Posted on November 6, 2017 by rburnham

THEMIS Image of the Day, November 6, 2017. This image shows part of the eastern flank of Pavonis Mons. Surface lava flows run down hill from the upper left of the image towards the bottom right. Perpendicular to that trend … Continue reading →

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