File:8415 MSL-Curiosity-Discolored-Fracture-Zones-in-Martian-Sandstone-PIA21649-full2.jpg
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Summary
Pale zones called "halos" border bedrock fractures visible in this 2015 image from NASA's Curiosity Mars rover. Measurements overlaid on the image offer a sense of scale for the size of these fractures. The rover team determined that the halos are rich in silica, a clue to the duration of wet environmental conditions long ago. The location is on the lower slope of Mars' Mount Sharp. "The concentration of silica is very high at the centerlines of these halos," said Jens Frydenvang, a rover-team scientist at Los Alamos National Laboratory in New Mexico, and the University of Copenhagen in Denmark. "What we’re seeing is that silica appears to have migrated between very old sedimentary bedrock and into younger overlying rocks."
Source: https://mars.nasa.gov/news/high-silica-halos-shed-light-on-wet-ancient-mars/
Image credit: NASA/JPL-Caltech
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:24, 29 December 2018 | | 1,600 × 996 (961 KB) | Suitupandshowup (talk | contribs) | Pale zones called "halos" border bedrock fractures visible in this 2015 image from NASA's Curiosity Mars rover. Measurements overlaid on the image offer a sense of scale for the size of these fractures. The rover team determined that the halos are rich... |
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