Tag Archives: plains

HiRISE: Plains with diverse lithologies

Plains with diverse lithologies. This observation was a “nadir” target, meaning our camera was pointing straight down at the surface. These pockmarked plains outside of a larger impact crater show some very nice colors. The top cutout is from our … Continue reading

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Highland landscapes point to long evolution by low-intensity intermittent erosion

[Editor’s note: From a paper by Jon Cawley and Ross Irwin recently published in the Journal of Geophysical Research.] Evolution of Escarpments, Pediments, and Plains in the Noachian Highlands of Mars • Debris-mantled escarpments, regolith pediments, sloping aggradational surfaces, and … Continue reading

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CRISM: Hydrated minerals of Cydonia Colles

In this scene we observe the knobs within the northern lowlands (Acidalia Planitia) that are Fe/Mg phyllosilicate-bearing (pink-blue) and small, patchy exposures of hydrated silica (green) surrounding the knobs. Previously, phyllosilicates have only been found within impact craters in the … Continue reading

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THEMIS: False-color craters and plains in Terra Cimmeria

THEMIS Image of the Day, August 31, 2018. Today’s false color image shows several craters and plains of Terra Cimmeria. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create … Continue reading

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Many bedrock plains are clastic rocks, not lavas

The Martian surface is dominated by loose dust, sands, and rocks, but high spatial resolution imaging has permitted the detection of numerous flat-lying exposures of ancient, intact bedrock. These “bedrock plains” have previously been interpreted as lava sequences, perhaps similar … Continue reading

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HiRISE: Plains north of Coprates Chasma

Plains north of Coprates Chasma. Beautiful Mars series.

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THEMIS: False colors on Terra Sirenum plains

THEMIS Image of the Day, May 25, 2017. Today’s false color image shows part of the plains and craters in Terra Sirenum. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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THEMIS: Plains of Terra Cimmeria in false color

THEMIS Image of the Day, May 24, 2017. Today’s false color image shows part of the plains of Terra Cimmeria. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create … Continue reading

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THEMIS: Ancient plains of Terra Sabaea

THEMIS Image of the Day, January 5, 2017. Today’s false color image shows some of the extensive plains that comprise Terra Sabaea. Note the variations in color on the plains, which likely identify different geological units. We’re seeing an ancient … Continue reading

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THEMIS: Geo-variety across Terra Sabaea plains

THEMIS Image of the Day, December 28, 2016. Today’s false color image shows part of the plains of Terra Sabaea. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a … Continue reading

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