Tag Archives: Melas Chasma

THEMIS: On the floor of a canyon, within a much bigger canyon

THEMIS Image of the Day, November 30, 2017. Today’s image of the southern section of the canyon shows a large region of sand dunes. The presence of dunes indicates wind action as the most recent geologic process modifying the canyon. … Continue reading

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

THEMIS: Rough-textured ridge in Melas Chasma

THEMIS Image of the Day, November 29, 2017. This VIS image shows part of a large ridge of material near the south central part the canyon. The roughest looking material is the top of the ridge. Wind may also have … Continue reading

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

THEMIS: Layers upon layers in Melas Chasma

THEMIS Image of the Day, November 28, 2017. This VIS image highlights the extent of layered materials within the canyon. The image is located on the mid elevations on the south side of the canyon. Melas Chasma is part of … Continue reading

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

THEMIS: Layered buttes & dunes in Melas Chasma

THEMIS Image of the Day, November 27, 2017. Melas Chasma is part of the largest canyon system on Mars, Valles Marineris. At only 563 km long (349 miles) it is not the longest canyon, but it is the widest. Located … Continue reading

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

HiRISE: Mixtures of sulfates in Melas Chasma

Many locations on Mars have sulfates, which are sedimentary rocks formed in water. Within Valles Marineris, the large canyon system that cuts across the planet, there are big and thick sequences of sulfates. In this image, layering within the light-toned … Continue reading

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

THEMIS: Melas Chasma landslide in false color

THEMIS Image of the Day, July 13, 2017. Today’s false color image shows part of Melas Chasma, along with a gigantic landslide where part of the canyon rim has collapsed. The THEMIS camera contains 5 filters. The data from different … Continue reading

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

HiRISE: Faults in Melas Chasma

Faults in Melas Chasma. Beautiful Mars series.

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

HiRISE: Clinoforms down in Melas Chasma

This group of steeply inclined light-toned layers is bounded above and below by unconformities (sudden or irregular changes from one deposit to another) that indicate a “break” where erosion of pre-existing layers was taking place at a higher rate than … Continue reading

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

HiRISE: Terminal lobes of a large debris flow in Melas Chasma

Terminal lobes of a large debris flow in Melas Chasma. Beautiful Mars series.

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

THEMIS: Rubble and ridges in Melas Chasma

THEMIS Image of the Day, December 5, 2016. Today’s VIS image shows part of the canyon wall of Melas Chasma. Landslides and “mass wasting” — the downslope movement of loose debris — have eroded the canyon walls and dumped a … Continue reading

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