erosion-resistant polygonal ridges latitude/longitude: -4.80 north, 137.38 east rationale: these...
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![Page 1: Erosion-resistant Polygonal Ridges Latitude/longitude: -4.80 North, 137.38 East Rationale: These features are widespread in Gale crater and may be cemented](https://reader036.vdocuments.us/reader036/viewer/2022062320/56649d6d5503460f94a4d825/html5/thumbnails/1.jpg)
Erosion-resistant Polygonal Ridges Latitude/longitude:-4.80 North, 137.38 East
Rationale: These features are widespread in Gale crater and may be cemented or altered fractures or fracture fill.
Morphology and Mineralogy: Polygonal positive-relief erosion-resistant ridges occurring in the sulfate-bearing, yardang-forming portion of the mound.
What will the rover specifically do here?Determine whether the ridges are erosion-resistant fractures and study their composition to learn more about the post-depositional environment at Gale.
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![Page 2: Erosion-resistant Polygonal Ridges Latitude/longitude: -4.80 North, 137.38 East Rationale: These features are widespread in Gale crater and may be cemented](https://reader036.vdocuments.us/reader036/viewer/2022062320/56649d6d5503460f94a4d825/html5/thumbnails/2.jpg)
A
1 km
PSP_009294_1750
Features of Interest
![Page 3: Erosion-resistant Polygonal Ridges Latitude/longitude: -4.80 North, 137.38 East Rationale: These features are widespread in Gale crater and may be cemented](https://reader036.vdocuments.us/reader036/viewer/2022062320/56649d6d5503460f94a4d825/html5/thumbnails/3.jpg)
Milliken, 2008Olivine Smectites Sulfates Sulfates
Sulfates + Phyllosilicates
Features of Interest