Tag Archives: clay minerals

HiRISE: Prospecting from orbit

The combination of morphological and topographic information from stereo images, as well as compositional data from near-infrared spectroscopy has been proven to be a powerful tool for understanding the geology of Mars. Beginning with the OMEGA instrument on the European … Continue reading

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HiRISE: Crater with possible phyllosilicates

Crater with possible phyllosilicates in the Terra Cimmeria highlands. Beautiful Mars series.

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HiRISE: The Painted Desert near Mawrth Vallis

The clay-rich terrain surrounding Mawrth Vallis is one of the most scenic regions of Mars, a future interplanetary park. Here, we cut a long, oblique view into strips to see the full color coverage in more compact form. The origin … Continue reading

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CRISM: Evidence of aqueous alteration near Mawrth Vallis

CRISM image 21BCB covers a region on the boundary of Chryse Planita, between Mawrth Vallis and Oyama crater. Chryse Planitia is a smooth circular 1600 km diameter plain that was a landing site for the U.S Viking 1 (landed July … Continue reading

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HiRISE: Clay deposits in the Southern Highlands

Clay deposits in the Southern Highlands. Beautiful Mars series.

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HiRISE: Dragon scales of Mars

This intriguing surface texture is the result of rock interacting with water. The rock was then eroded and later exposed to the surface. The pinkish, almost dragon-like scaled texture represents Martian bedrock that has specifically altered into a clay-bearing rock. … Continue reading

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Indonesian sediments may offer clues to Mars paleolake deposits

[Editor note: text from a GSA release here.] In their GSA Bulletin article published online last week, Timothy A. Goudge and colleagues detail the clay mineralogy of sediment from Lake Towuti, Indonesia, using a technique called visible to near-infrared (VNIR) … Continue reading

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Gale Crater’s rock-ingredient stew seen as plus for habitability

Editor’s note: Press conference video here. NASA’s Curiosity rover is climbing a layered Martian mountain and finding evidence of how ancient lakes and wet underground environments changed, billions of years ago, creating more diverse chemical environments that affected their favorability … Continue reading

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Opportunity: Mini-mesa in the valley

Sol 4415-16, June 25-26, 2016. This little flat-topped feature, a mini-mesa¬†sitting on the floor of Marathon Valley with the profile of a tree-stump, is probably an erosional remnant. The Navcam composite view was taken on Sol 4415 and looks northward … Continue reading

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Opportunity: York target, post-brushing

Sol 4112, June 22, 2016. Opportunity is currently in the middle of one of the clay mineral areas spotted from orbit by the CRISM spectrometer on the Mars Reconnaissance Orbiter. The target area the rover is examining is dubbed York, … Continue reading

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