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Solfataric Alteration at Hawaii as a Potential Analog for Martian Surface Processes

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Publication Date
Dec 15, 2015
Source
SETI Institute
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Unknown

Abstract

Hydrothermal and/or acidic alteration of basaltic ash on Mars may have produced the sulfates and hydrated silica observed in many aqueous outcrops. This study considers solfataric alteration as a potential formation mechanism for opal, sulfate and clays on Mars. Alteration via fumaroles in the Kilauea caldera, HI, have created a light-toned solfataric bank on the south wall of the crater where Keanakakoi ash was deposited. Bands of orange, beige and whitish crusted material are present where jarosite and gypsum are observed ...

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