Tag Archives: polyhydrated sulfates

Layered-sulfates’ history in NE Syrtis Major

Posted on July 11, 2019 by rburnham

[Editor’s note: From a paper by Daven Quinn and Bethany Ehlmann recently published in the Journal of Geophysical Research.] The Deposition and Alteration History of the Northeast Syrtis Major Layered Sulfates • The eroded stratigraphy at Northeast Syrtis Major includes … Continue reading →

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CRISM: Polyhydrates, sulfates, gypsum, and Fe silicates at a Sisyphi Montes dome

Posted on July 1, 2019 by rburnham

The Sisyphi Montes are a series of large semicircular mountains in Sisyphi Planum, a volcanic province on Mars located between the south polar terrains, Argyre, and Hellas basins. In this CRISM scene we observe polyhydrated sulfates (magenta), gypsum (blue), and … Continue reading →

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Mars minerology points to cold, icy ancient climate

Posted on June 8, 2018 by rburnham

The climate throughout Mars’ early history has long been debated – was the Red Planet warm and wet, or cold and icy? New research published in Icarus provides evidence for the latter. Mars is littered with valley networks, deltas and … Continue reading →

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HiRISE: Mixtures of sulfates in Melas Chasma

Posted on September 8, 2017 by rburnham

Many locations on Mars have sulfates, which are sedimentary rocks formed in water. Within Valles Marineris, the large canyon system that cuts across the planet, there are big and thick sequences of sulfates. In this image, layering within the light-toned … Continue reading →

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