Tag Archives: iron-magnesium phyllosilicates

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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CRISM: Hydrated minerals in Chryse Planitia

The Chryse Planitia is a smooth circular plain that has a diameter of 1600 km, and has a depth of 2.5 km below its average surface altitude, making it one of Mars’s lowest regions. Chryse Planitia was a landing site … Continue reading

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CRISM: Phyllosilicates near Syrtis Major

This image shows a site near Syrtis Major, an expansive volcanic structure. This CRISM image displays olivine-rich rocks in red and rocks rich in iron-magnesium- containing clay-like minerals called phyllosilicates in various other colors. Olivine is present in most places … Continue reading

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CRISM: Fe/Mg phyllosilicates near Mawrth Vallis

This image shows iron/ magnesium-bearing hydrated minerals called phyllosilicates in a white/red color. Phyllosilicates are clay and clay-like minerals formed by chemical reactions with liquid water. They are very thin (microscopic) stacked layer crystal forms, also called sheet silicates. The … Continue reading

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CRISM: Iron-magnesium clays at Isidis Basin rim

This image is located right along the rim of the Isidis impact basin, at the foot of Libya Montes. Here we see iron-magnesium phyllosilicates (cyan). Phyllosilicates are clay and clay-like minerals formed by chemical reactions with liquid water. They are … Continue reading

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CRISM: Phyllosilicate minerals near Mawrth Vallis

This image, which covers a site located slightly west of the Mawrth Vallis outflow channel, shows aluminum-containing minerals called phyllosilicates in a cyan color and iron-magnesium-containing phyllosilicates in a red/magenta color. Phyllosilicates are clay and clay-like minerals formed by chemical … Continue reading

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CRISM: Aluminum and iron/magnesium clays in Mawrth Vallis

This image, which covers a site located northeast of Oyama Crater, shows aluminum-containing minerals called phyllosilicates in a cyan color and iron-magnesium-containing phyllosilicates in a red/magenta color. Phyllosilicates are clay and clay-like minerals formed by chemical reactions with liquid water. … Continue reading

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