Tag Archives: layered deposits

HiRISE: Exploring Meridiani Planum

The Opportunity rover has spent 13 years exploring a small region of Meridiani Planum which has a rather ordinary appearance. Other portions of Meridiani are much more interesting, with well-exposed layered bedrock eroded into strange patterns. [More at link]

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HiRISE: Curved ridge and layered materials

Curved ridge and layered materials. Is the curved ridge a remnant of inverted stream channel sediment, crater ejecta, or something else (e.g., tectonic)? Are the layered materials sedimentary rock? Beautiful Mars series.

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HiRISE: Meridiani crater’s fractured floor

It’s not only hearts that can break. This image shows the fractured floor of a large, ancient impact crater, located in Meridiani Planum, in the Northern hemisphere of Mars. Beautiful Mars series.

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HiRISE: A layered mound in Juventae Chasma

Many of the chasmata (the plural of “chasma”) in Valles Marineris contain light-toned mounds that are distinct from the darker rocks that define the walls. The light-toned mounds, like this one in Juventae Chasma, generally contain sulfates, which are salts … Continue reading

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THEMIS: Crater sands in false color

THEMIS Image of the Day, December 22, 2017. This is a false color image of Rabe Crater. In this combination of filters “blue” typically means basaltic sand. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading

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THEMIS: Long swath across Rabe Crater in false color

THEMIS Image of the Day, December 21, 2017. This is a false color image of Rabe Crater. In this combination of filters “blue” typically means basaltic sand. This VIS image crosses the entire crater and demonstrates how extensive the dunes … Continue reading

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THEMIS: Rabe Crater’s pit in false color

THEMIS Image of the Day, December 20, 2017. This is a false color image of Rabe Crater. In this combination of filters “blue” typically means basaltic sand. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading

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THEMIS: Rabe Crater dunes in false color

THEMIS Image of the Day, December 19, 2017. This is a false color image of Rabe Crater. In this combination of filters “blue” typically means basaltic sand. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading

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THEMIS: Sand sheet in Rabe Crater

THEMIS Image of the Day, December 18, 2017. The majority of the dune field in Rabe Crater consists of a sand sheet with dune forms on the surface. The sand sheet is where a thick layer of sand has been … Continue reading

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THEMIS: Landscapes control winds, dunes in Rabe Crater

THEMIS Image of the Day, December 15, 2017. This VIS image provides another instance where the topography of the upper floor material affects the winds and dune formation. At the edges of the dune field, the dunes become smaller and … Continue reading

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