Tag Archives: clays

HiRISE: Looking at martian salts and clays

This 3D perspective view is a composite of both HiRISE and data from CRISM, another instrument onboard MRO. This view covers a small patch of ancient Martian real estate in Terra Sirenum. CRISM collects spectral data that can be used … Continue reading

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HiRISE: Knobs on the rim of a circular feature

Knobs on the rim of a circular feature. And there might be clays on this cluster of knobs which as a unit, look very interesting. Beautiful Mars series. [More at links]

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HiRISE: Clay outcrop near Maja Valles

A clay outcrop near Maja Valles. Maja Valles is a large, ancient outflow channel in the Lunae Palus quadrangle on Mars. The name is a Nepali word for “Mars”, and parts of the system have been partially buried by thin volcanic … Continue reading

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HiRISE: Clays in a well-preserved impact crater in Acidalia Planitia

Clays in a well-preserved impact crater in Acidalia Planitia. Beautiful Mars series. [More at links]

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HiRISE: Clay-rich deposits possibly associated with Nif Crater

Clay-rich deposits possibly associated with Nif Crater. Beautiful Mars series.

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HiRISE: Possible sulfate and clay evaporitic deposit in Schiaparelli Crater

Possible sulfate and clay evaporitic deposit in Schiaparelli Crater. Beautiful Mars series.

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HiRISE: Clay deposits in the Southern Highlands

Clay deposits in the Southern Highlands. Beautiful Mars series.

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CRISM: Clays near Mawth Vallis

Mawrth Vallis is an ancient Mars river channel (~15km wide) located along the crustal dichotomy boundary that exposes abundant light-toned layers of clay-rich rocks. Indicative of aqueous alteration, these clays may have been deposited during massive flooding events or in … Continue reading

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HiRISE: A closer look at Holden Crater

Holden Crater in southern Margaritifer Terra displays a series of finely layered deposits on its floor (white and light purple in an enhanced color image). The layered deposits are especially well exposed in the southwestern section of the crater where … Continue reading

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More recent clay formation on Mars?

Clays and other minerals formed when rocks are altered by water have been found in multiple locations on Mars. It’s been assumed that these minerals probably formed in the earliest Martian epoch, over 3.7 billion years ago. But a new … Continue reading

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